Yoga as a Complementary Therapy for Children and Adolescents: A Guide for Clinicians

| August 31, 2010 | 0 Comments

by Lisa C. Kaley-Isley, PhD, RYT-500; John Peterson, MD; Colleen Fischer, PhD; and Emily Peterson, CYT
Dr. Kaley-Isley is from the University of Colorado School of Medicine, Division of Psychiatry, Denver, Colorado; Dr. Peterson is Director, Child and Adolescent Psychiatric Services, Denver Health Medical Center and Associate Professor, Department of Psychiatry, University of Colorado School of Medicine, Denver, Colorado; Dr. Fischer is from Denver Health Medical Center and the University of Colorado School of Medicine, Division of Psychiatry, Denver, Colorado; and Ms. Peterson is from Beloit College, Beloit, Wisconsin.

Psychiatry (Edgemont) 2010;7(8):20–32

Funding: There was no funding for the development and writing of this article.

Financial Disclosures: The authors report no relevant conflitcs of interest relevant to the content of this article.

Key Words: adolescent, child, complementary and alternative medicine, pediatric, review article, yoga


Yoga is being used by a growing number of youth and adults as a means of improving overall health and fitness. There is also a progressive trend toward use of yoga as a mind-body complementary and alternative medicine intervention to improve specific physical and mental health conditions. To provide clinicians with therapeutically useful information about yoga, the evidence evaluating yoga as an effective intervention for children and adolescents with health problems is reviewed and summarized. A brief overview of yoga and yoga therapy is presented along with yoga resources and practical strategies for clinical practitioners to use with their patients. The majority of available studies with children and adolescents suggest benefits to using yoga as a therapeutic intervention and show very few adverse effects. These results must be interpreted as preliminary findings because many of the studies have methodological limitations that prevent strong conclusions from being drawn. Yoga appears promising as a complementary therapy for children and adolescents. Further information about how to apply it most effectively and more coordinated research efforts are needed.

Case Study

Jeremy was a 12-year-old boy with a history of being diagnosed with mild asthma, attention deficit hyperactivity disorder (ADHD), and recent onset obesity. Jeremy was accompanied to a psychiatric evaluation by his mother and his 14-year-old sister, Janice. The mother reported that Janice was “always stressed out” and “worried about gaining weight.” The mother explained that she was interested in getting help for her children but she wished to avoid medication. She and her children heard that yoga could be helpful but they did not know much about it and wanted to learn more.


The practice of yoga for fitness and wellness in gyms, community centers, and yoga studios is broadening into yoga therapy being provided in schools, hospitals, and community treatment centers. In fact, the leading yoga magazine, Yoga Journal, recently claimed that “yoga as medicine represents the next great wave.”[1] According to a 2008 survey, an estimated 6.9 percent (15.8 million) people in the United States practice yoga.[1] Additionally, another 4.1 percent (9.4 million) of those who are not currently practicing yoga said they would definitely try yoga during the next year.[1] While many clinicians remain unfamiliar with the practice of yoga, the same 2008 survey indicated that 6.1 percent (14 million) of Americans said a doctor or therapist had recommended yoga to them.

Other surveys assessing the familiarity and acceptance of complementary and alternative medicine (CAM) practices by the general public and medical practitioners report similar use and acceptance patterns for yoga. In a 2000 survey of 39 CAM practices, 95 percent of 589 respondents had heard of or tried yoga, and 93 percent had heard of or tried meditation.[2] Yoga was ranked fifth out of 39 therapies surveyed in terms of its perceived effectiveness. In a study looking specifically at the acceptability of CAM practices in a pediatric hospital outpatient pain clinic setting, both the children’s and parents’ ratings placed yoga as the third most likely helpful CAM approach.[3] When conventional treatments were included in the ratings, yoga was rated fourth for both groups, with medications rated “more likely” to help, and surgery “less likely” to help than yoga.

Likewise, the 2002 and 2007 United States National Health Interview Surveys (NHIS), which included specific questions on CAM use by adults and children, document a growing trend of yoga practice by adults and children, in particular by children whose parents use CAM.[4] Four of the 10 most frequently used CAM interventions by children are yoga practices. In addition, 3 of the 4 CAM practices showing the most growth in use by adults between the 2002 and 2007 NHIS surveys were yoga practices.[4]

The popularity of yoga has created a need for empirical studies to evaluate the efficacy and limitations of yoga as a method of wellness, disease prevention, and treatment intervention. There is also a need to provide clinicians with practical information about yoga and the current state of evidence supporting its use with children and adolescents. The majority of available yoga studies have been conducted with adults, with recent epidemiological research indicating that many adults perceive yoga to be beneficial for musculoskeletal problems, mental health conditions, and overall health.[5] However, studies to evaluate the potential benefits of yoga with children and adolescents are limited. Two recent systematic reviews of yoga for the pediatric population concluded that the majority of studies report benefits from yoga, but the evidence is low in methodological quality and quantity.[5,6] While this conclusion continues to appear valid, it seems insufficient for clinicians who are questioned by patients and families about the practice and potential benefits of yoga.

The objectives of the present article are as follows: 1) provide clinical practitioners with a brief and practical overview of yoga and how it might be used as a complementary mind-body therapeutic tool in the pediatric population; 2) review the current evidence suggestive of benefits to using yoga for the improvement and maintenance of overall health and fitness as well as the evidence for potentially improving or augmenting the treatment of specific health problems; and 3) provide information about the availability and evaluation of yoga resources for children and adolescents.

Some background information on yoga

Yoga originated 4,000 or 5,000 years ago in what is now India.[7] Over time, yoga developed as a science, philosophy, and psychology.[8–10] Table 1 provides a timeline for the development of yoga in ancient times and the present. The yoga practices that arose out of these systems of thought were designed to facilitate development and integration of the human body, mind, and breath to produce structural, physiological, and psychological effects.[7] The aims of yoga are the development of the following: 1) a strong and flexible body free of pain; 2) a balanced autonomic nervous system with all physiological systems, e.g., digestion, respiration, endocrine, functioning optimally; and 3) a calm, clear, and tranquil mind. Beyond these specific outcomes, yoga practices are intended to facilitate self transformation at every level of functioning, with the goal of improving the overall quality of life.

In the century since yoga was introduced into the West, there has been a substantial proliferation in the number of schools of yoga and yoga teachers. As of April 2010, Yoga Alliance (YA), the professional credentialing body for yoga, lists 1,007 schools approved by YA in the United States to train yoga teachers, and 25,026 registered yoga teachers (RYTs). The schools of yoga differ on a number of dimensions that influence the instructions given by the teacher, the structure and content of the class, and the environmental conditions of the class. Table 2 lists factors to take into consideration when choosing a yoga teacher and class. Table 3 defines terms and practices commonly used in yoga classes.

Traditionally, yoga was taught by oral transmission from teacher to student so that the practices could be individually tailored to the evolving needs of the student. Currently in the West, the principle mode of instruction is a group class. The advantages of group yoga classes are similar to those for group therapy: one teacher can provide instruction to more individuals at one time, the cost for a class is less than for private instruction, and the group members can provide support in addition to that offered by the teacher. The disadvantages are also similar to those of group therapy in that less personalized attention and instruction may be less beneficially targeted or even harmful to the needs of the individual at any given time. However, skilled yoga teachers, like skilled clinicians, can provide individualized guidance even in a group setting by offering alternatives, modifications, and personalized adjustments to individual class members.

One of the hallmarks of yoga is that the practice has been continuously adapted to the culture and the individual needs of the practitioner. The growing number of yoga schools in the West is evidence that this tailoring to different needs, interests, and conditions persists. The processes of matching and individualizing yoga to each participant are quintessential to yoga, and are recommended for yoga classes, but they are an even more signal aspect of yoga therapy.

Yoga Therapy

Yoga is recognized by the National Institutes of Health (NIH) National Center for Complementary and Alternative Medicine (NCCAM) as a form of CAM in the category of “mind-body” medicine. NCCAM asserts that mind-body medicine “focuses on the interactions among the brain, mind, body, and behavior, and on the powerful ways in which emotional, mental, social, spiritual, and behavioral factors can directly affect health.”[11]

Furthermore, “Mind-body medicine typically focuses on intervention strategies that are thought to promote health…It regards as fundamental an approach that respects and enhances each person’s capacity for self knowledge and self care, and it emphasizes techniques that are grounded in this approach.”[11] Consistent with the NCCAM definition, yoga therapy is defined by the International Association of Yoga Therapists (IAYT) as “the process of empowering individuals to progress toward improved health and well-being through the application of the philosophy and practice of yoga.”[12]

Yoga practices can be designed to foster developmental, preventative, therapeutic, and/or transformational aims.[7,13] In yoga therapy, the emphasis is on adapting the techniques of yoga to address the specific concerns of the individual or group.[7] Table 4 lists developmental factors to consider when teaching yoga to children and adolescents. Table 5 provides guidance in matching types of yoga to particular diagnostic presentations.


We conducted a comprehensive review of the literature, extracting citations from the following sources: Ovid MEDLINE, PsycINFO, Cochrane Reviews, EMBASE, and ERIC databases. Using controlled language for each of these databases, we searched expanded terms for yoga and children, as well as the truncated synonyms of these concepts as text words utilizing appropriate proximity operators. We excluded book chapters, dissertation abstracts, studies involving participants younger than school age, studies of physiological responses, and developmental disabilities. We included studies specifically evaluating college students, but did not include other adult studies or studies that examined a mixed population of children and adults. Studies included in the current review cite the use of yoga 1) in a developmental or preventative way to foster or bolster healthier functioning in youth at risk for psychiatric or medical disorders and 2) in a therapeutic way with youth who are diagnosed with psychiatric or medical disorders. For areas in which the pediatric literature was scarce, the use of yoga in the adult literature was referenced. In addition to a literature review, recommendations and resources were gathered and presented for clinical practitioners in their work with children and adolescents.

Developmental and preventative uses of yoga

Developmental uses of yoga are geared toward nurturing inherent capacities and facilitating mastery, e.g., strengthening the physical body, increasing energy and stamina, building coping capacity, and enhancing attention, concentration, and memory.[13] Preventative yoga approaches aim to protect and preserve capacity that an individual has already achieved. This may include protecting structural stability or maintaining self esteem in the face of challenges. Three studies examined the effects of yoga on self worth and self perception with the goal of improving positive self concept. The findings must be considered preliminary as the studies all have small sample sizes and the interventions lack appropriate controls. Table 6 presents links to the yoga programs evaluated in the studies.[14–16,18,21,25,40]

An uncontrolled pilot study examined the effects of an after-school “Bent on Learning” program that included yoga postures, breathing, relaxation, and meditation with fourth and fifth grade inner-city children.[14] The yoga intervention was one hour per week for 12 weeks in groups of approximately 20 students. The participants demonstrated improved negative behavior scores post-intervention compared to the non-yoga group, although no significant differences were indicated for the other well being outcomes.

A nonrandomized, control treatment design evaluated a “Self Discovery Program,” which integrated elements of yoga, massage, and relaxation for children ages 8 to 11 years with emotional, behavioral, or learning difficulties in the United Kingdom.[15] The intervention was 45 minutes, once a week, for 12 weeks. The yoga group demonstrated small, though significant, improvements in levels of self confidence, social confidence with teachers, communication with peers, contributions in the classroom, and level of total difficulties on the Strengths and Difficulties scale.
In another study, college students in a lecture-only health course were compared to peers in health fitness courses where yoga was one of the fitness courses.[16] The health fitness course groups collectively evidenced significant differences on five indicators of emotional well being (e.g., Global Self Worth, Appearance), but the specific effects of the yoga class were not separately evaluated.

Case study, continued

Jeremy was interested in doing yoga. He asked, “Could yoga help my ADHD?” Janice also wanted to find out whether yoga might help her feel less “stressed out.” The clinician explained that both children needed to be thoroughly evaluated before any specific treatment recommendations were made, then discussed some of the evidence supporting the use of yoga for pediatric mental health problems.

Therapeutic uses of yoga for mental health disorders

Therapeutic yoga is intended to alleviate suffering, support rehabilitation, and improve quality of life.[13] With children, therapeutic interventions are often facilitative rather than rehabilitative in that their capacities are still in the process of being developed. The current review shows yoga being used in its facilitative capacity with children at risk for developing disorders, and in academic and treatment settings with children with diagnosed disorders of attention, anxiety, depression, and eating disorders.

Attention. Four published studies[17–21] have evaluated methods of teaching yoga to children (ages 8–13) diagnosed with ADHD, and a fifth study assessed yoga taught to first through third graders with “attention concerns.” A randomized, controlled crossover treatment design examined the effect of yoga as a complementary treatment for 19 boys (ages 8–13) diagnosed with ADHD.[17] Most of the boys were taking medication during the 20-week study. The weekly one-hour yoga classes included postures, breathing practices, relaxation training, and a yoga gazing concentration exercise (tradaka). Significant improvements pre- to post-test were found for five of the Conners Parent Rating subscales for the yoga group only: Oppositional, Global Index Restless/Impulsive, Global Index Emotional Lability, Global Index Total, and ADHD Index. The control group (and not the yoga group) that participated in cooperative activities showed improvements on the Conners Hyperactivity, Anxious/Shy, and Social Problems subscales. Both groups showed improvements in some of the parent-rated scales (e.g., Perfectionism, DSM-IV Total), but no changes on the teacher report. There was a positive dose response effect on a measure of attention for subjects who participated in more home-based practice and attended more sessions.

In a nonrandomized, quasicontrolled treatment study, a six-week Sahaja Yoga Meditation intervention was evaluated with children (ages 8–12 years) diagnosed with ADHD (most of whom were taking medication) and their parents.[18] The three-week intervention was a 90-minute guided meditation two times a week. In between sessions, parents were asked to lead their child in meditation at home and to keep a record of their practice. Pre- and postintervention results indicated a decrease in ADHD symptoms on the Conners Rating Scale, reduced dosage in stimulant medication reported at six weeks, and an increase in parent-child relationship quality in the treatment group.

A nonrandomized, controlled treatment design evaluated the effects of an eight-week yoga program in a group of Iranian children (ages 9–12 years) diagnosed with ADHD.[19] The 45-minute yoga class included 10 minutes of breathing practices, 25 minutes of beginner yoga poses, and 10 minutes of relaxation, twice a week for eight weeks. Results indicate a reduction in ADHD symptoms on both attentional and hyperactivity subscales.

One study assessed the additive benefits of yoga and massage as adjunctive treatments to standard outpatient care for children diagnosed with ADHD.[20] All participants received standard care. One group also received yoga as exercise, and a second group also received massage. The yoga and massage interventions were 20 minutes, once a week, for six weeks. Parents were present during the training sessions and they were asked to provide massage or guide the yoga practice at home with their child between sessions. No statistical analysis was reported for any of the measures. Results were reported in terms of patient satisfaction scores and interview comments, which were positive for all groups. Negative comments from yoga participants were 1) children did not like doing the poses at home with their parents but did enjoy class, and 2) parents would have liked more instruction before being asked to teach the poses at home.

A yoga video was assessed as a means of increasing time on-task in a study of elementary school children (first through third graders, n=3) with attentional concerns.[21] The children practiced to a 30-minute “Yoga Fitness for Kids” VHS tape twice a week for three weeks.[22,23] Using a multiple baseline, nonrandomized, controlled treatment design and a follow-up phase, effect sizes of the intervention ranged from 1.5 to 2.7 for the outcome of on-task behavior, a large effect size according to Cohen’s 1992 guidelines; follow-up treatment gains decreased somewhat (0.77 to 1.95), but fell within a moderate-to-large effect size. The comparison group’s on-task behaviors did not improve.

Anxiety. Three child and adolescent studies[24–26] were identified that evaluated yoga as a treatment intervention for anxiety. An intervention that combined yoga postures, rolling pin massage, and progressive muscle relaxation intervention was used with 40 psychiatrically hospitalized adolescents diagnosed with adjustment disorder and depression.[24] Using a within-subjects pretest/post-test design, the combination intervention was administered once to assess its immediate effects. The yoga participants (and not the controls) reported decreased anxiety and increased positive affect, and they were observed to show less anxious behavior and fidgeting. The subjects diagnosed with adjustment disorder and one-third of those diagnosed with depression had reduced cortisol levels post intervention.

Using a nonrandomized, controlled treatment design, the effectiveness of the “Training of Relaxation with Elements of Yoga for Children” program based on Sivananda yoga was evaluated with participants aged 11 and 12 who evidenced high levels of school examination anxiety.[25] The participants showed significant reductions in aggression, helplessness in school, physical complaints, and an increase in stress-coping abilities and general well being, but no significant reduction in school exam anxiety or increase in self efficacy.

The effects of Hatha yoga on perceived stress, affect, and salivary cortisol were examined using a nonrandomized, controlled trial design in a sample of college students.[26] The Hatha yoga and African dance course groups (but not the biology lecture group) self reported significant reductions in negative affect and perceived stress. The yoga participants showed a decrease in salivary cortisol in contrast to the African dance group who had an increase in cortisol levels. No significant effects were found for positive affect in the yoga group, but were found for the African dance group. The authors speculate that the cortisol differences may have been due to differences in the intensity of the two activities.

There have been nine Cochrane reviews involving the use of yoga, but only one of these reviews specifically focuses on children or young people. In this review, yoga was one of many exercise interventions used as a potential prevention and treatment for anxiety and depression in youth 11 to 19 years old.[27] The authors reported methodological quality and quantity limitations similar to the studies evaluating yoga. Mindful of this caveat, the authors concluded, “there is a small effect in favor of exercise in reducing depression and anxiety scores in the general population of children and adolescents,” and it made little difference on the outcome whether the exercise was of high intensity, e.g., aerobics class, or low intensity, e.g., relaxation classes or yoga.

Eating disorders. Three studies[28–30] were identified that evaluated the impact of yoga as a complementary intervention for children and adolescents with eating disorders or weight and body satisfaction concerns. A pilot study assessed the potential benefits of an eight-week, individualized yoga treatment added to standard outpatient treatment for adolescents diagnosed with an eating disorder.[28] The participants were 11 to 21 years old, primarily female (n=50 girls, 4 boys), and diagnosed with anorexia nervosa, bulimia nervosa, or eating disorder not otherwise specified. All participants received outpatient care, which included physician and/or dietician appointments every other week. The group that also received yoga demonstrated greater decreases in eating disorder symptoms as assessed by the Eating Disorder Examination (EDE) compared to the controls at four weeks post-intervention, and reported significantly reduced food preoccupation immediately after yoga sessions. Both groups maintained current body mass index (BMI) levels and evidenced decreased anxiety and depression over time.

A prevention study using an integrated yoga, relaxation, and teaching intervention was undertaken with normal fifth grade girls to assess impact on self-perception related to body image.[29] The participants showed significant decreases in body dissatisfaction on bulimia subscales and an increase on a social self-concept scale. However, no support was found for the outcomes of drive for thinness, eating disordered attitudes/intentions, or perceived stress.

In a study with college women who reported dissatisfaction with their bodies, no significant post-intervention differences were found between the yoga and control groups, but the third study arm, a cognitive dissonance intervention, reported lower scores on outcomes of disordered eating, body dissatisfaction, alexithymia, and anxiety.[30]

Case study continued

After Jeremy underwent a thorough psychiatric evaluation and physical exam and information and behavior ratings were obtained from school and home, the clinician agreed with the diagnosis of ADHD. Treatment recommendations were reviewed and Jeremy and his mother considered all the options, including yoga. Janice was recently diagnosed with irritable bowel syndrome (IBS) and wondered if she would benefit from doing yoga. Jeremy’s mother also wondered if yoga was helpful for other pediatric medical problems, such as Jeremy’s asthma and overweight condition. The clinician explained some of the evidence supporting the use of yoga for pediatric medical problems.

Application of yoga to medical disorders

The literature evaluating the effectiveness of yoga as an intervention for specific medical disorders with adults is more robust that the literature is with youth. Beneficial effects from yoga in adult populations have been reported for cardiovascular disease,[31] diabetes mellitus,[32–34] epilepsy,[35] back pain,[36] and asthma.[29–32]

In contrast, only 7 out of 63 studies evaluating yoga and asthma included child participants. Perhaps in response to recruitment challenges, a surprising number of yoga studies include both children and adults in their subject pool. Eighty of the articles excluded from the pediatric yoga review by Birdee et al[5] were eliminated because they included both child and adult participants. Three of the studies showing yoga to be helpful for children and adolescents with asthma include studies combining adults and youth as participants, so consistent with our review exclusion criteria these are not included here.[33,34]

Asthma. Given the emphasis of yoga on regulating the breath, the potential effect of yoga practices on asthma has been a primary target of investigation. In addition to the child-adult combined articles, two studies[37,38] have evaluated the impact of yoga as a treatment intervention for asthma with children. An integrated yoga intervention that included yoga postures, breathing techniques, and cleansing rituals was evaluated with hospitalized youth, mean age 15.8, with a history of childhood asthma, recurrent episodes of asthma during the previous year, and exercise-induced bronchoconstriction.[37] The intervention was delivered twice daily (90 minutes in the morning and 60 minutes at night) for 40 days. Pulmonary functions, exercise capacity, and exercise-induced bronchoconstriction were all reported to improve post- intervention. Follow-up data for up to two years on some of the subjects documented continued to show improvements in asthma symptoms and decreased medication use. A yoga exercise practice with 31 school-aged Chinese children diagnosed with asthma found that yoga exercise was a benefit to flexibility, muscular endurance, and cardiopulmonary fitness.[38]

Irritable bowel syndrome. Gastrointestinal disorders are classed along with asthma as disorders that may be exacerbated or precipitated by stress and other mind-body interaction factors. As such, they may be particularly amenable to a mind-body intervention. A 14-minute yoga video was specifically designed to target symptoms of IBS.[39] Twenty-five adolescents (aged 11–18 years) diagnosed with IBS took a one-hour instructional class then were asked to practice daily with the video at home. The teens in the yoga intervention group reported lower levels of functional disability, less use of emotion-focused avoidance, and lower anxiety following the program than teens in the control group. The yoga-group teens said they found practicing yoga to be helpful and indicated they would continue to use it to manage their IBS.

Diabetes. An uncontrolled pilot study examined both physical and psychological outcomes of yoga intervention in a small sample of predominantly Hispanic children (ages 8–15 years) at risk for the development of type 2 diabetes.[40] The yoga intervention was an Ashtanga yoga class modified to decrease the physical intensity of the sequence so the children did not fatigue or harm themselves. The class was 75 minutes, three times a week for 12 weeks. The participants showed positive outcomes of weight loss, improved self concept, and improved anxiety symptoms.

Case study concluded

Janice and Jeremy practiced yoga on a regular basis. Their mother was pleased with the health-promoting aspects of yoga and decided to practice it herself. Janice especially liked the breathing practices and the way she felt more relaxed after class. Jeremy lost some weight and was proud of the many yoga poses he could do.


Yoga is intended to have an optimizing effect, which is consistent with the current research. One area of focus in the child literature is the use of yoga programs as a primary prevention strategy and the school environment as a primary context to enhance children’s mental health. When using yoga to facilitate positive self attitudes, two of the three studies with school-age children reported significant improvement in positive outcomes and reduction in negative behaviors,[15,40] but one study reported only reduction in problematic behaviors.[14] All three studies were of 12 weeks duration and had similar core yoga practice elements; however, they each used different, specific yoga interventions, and one of the two with positive outcomes included massage.[15] A second potentially distinguishing factor is the degree of physical vigor in the yoga interventions. The study using Asthanga yoga[40] found reductions in anxiety but the one using Sivananda techniques[15] did not. The differential benefits cannot be clearly ascribed to the schools of yoga because of other differing variables in the studies, but it is noteworthy that Ashtanga is a more physically vigorous form of yoga than Sivananda. It may be that children with anxiety benefit from more physically active forms of yoga, at least initially, in order to discharge physical restlessness and shift their attention from mental preoccupations.

The studies exploring the potential for yoga to facilitate development of concentration and attention in a school setting with children with attention problems differed in that two of them actively included parents in delivery of the intervention.[18,20] Three of the 4 studies reported reductions in ADHD symptoms;[17–19] the fourth was a parent-facilitated study where the parent led this aspect of the yoga practice.[40] In contrast, the second parent-facilitated treatment led to improvement in the parent-child relationship.18 One distinguishing factor between the two parent-led interventions seemed to be the amount of coaching parents received before being asked to lead the child in the intervention, with more preparation leading to greater satisfaction.

The components in the yoga interventions used in three of the attention studies were otherwise relatively similar, so we may begin to form some conclusions about the type and dose of yoga needed to be effective in this population. The available evidence suggests a school-aged child diagnosed with ADHD would most likely benefit from a yoga class 1) with same-aged peers, 2) multiple components that include use of poses and focus on the breath, 3) intentional cues to concentrate attention, and 4) an ending period of quiet or guided relaxation in a still position. The class time may span 45 to 90 minutes. At least 6 to 8 weeks of weekly sessions, or approximately 20 hours of class time may be required to see beneficial effects, but they may also manifest sooner. There is likely to be greater benefit if use of the skills is practiced at home and supported by the classroom environment.

In addition to optimizing normative development, yoga is also being used as a remediation strategy for children who demonstrate clinically significant mental health concerns. Three studies evaluating yoga as a tool for reduction of anxiety and stress and improvement in coping abilities and mood states yielded mixed results.[24–26] One demonstrated a decrease in anxiety and increase in positive affect,[24] one found no decrease in anxiety but an increase in self efficacy,[25] and the third reported a decrease in negative affect and stress, but no increase in positive affect.[26] Two of the studies used one-time cortisol sampling as a biomarker for stress and in both cases cortisol levels decreased following yoga practice.[24,26]

Across the various studies, a trend emerged showing consistent reduction in problem behaviors and mixed results in terms of promoting positive affect states. There was also one study showing a decrease in positive self concept.[40] One hypothesis why yoga practice may have this differential effect is that increasing self awareness, especially of limitations, may have the effect of lowering self esteem and increasing existing anxiety or depression, at least in the short run. Trying something new at which a person is not skilled may also increase feelings of inadequacy. It is noteworthy that individuals progressing through the stages of change from precontemplative to contemplative and active often experience more distress in the transitive contemplative stage where there is awareness of the need to change, but the person has not yet developed the means or the mastery to do so. The authors suggest that this finding would reverse with a longer dose of the intervention. In order to address this question, it is recommended that studies use multiple data points rather than two data point pre-post measures to track the trajectory of change more closely. Also, implementation of studies with longer intervention periods would help to clarify dose response patterns. Other factors to consider are the sensitivity of the measures being used to detect shifts in internalizing behaviors compared with externalizing behaviors, and the fact that a reduction in negative behaviors may be more readily observed and valued by parent and teacher raters.

The studies targeting youth with disordered eating habits demonstrated reductions in body dissatisfaction, food pre-occupation, anxiety, and depression.[28,29] The two studies that measured these reductions also found improved self concept. There was no weight loss in the study populations with a low-weight eating disorder, but in a population at risk for type 2 diabetes there was some weight loss, which was construed as a positive outcome. Weight regulation in children and adolescents is a topic of urgent concern. Yoga may present a healthy mode of exercise for youth who are obese or underweight, although studies will need to continue to explore this potential.

For children with medical conditions, the studies reviewed demonstrated initial benefits from the mind-body interaction effects of yoga. The studies with asthma showed improvements in pulmonary functions, exercise capacity, and exercise-induced bronchoconstriction, which were sustained over two years follow up and led to decreased medication use.[37] The youth with IBS evidenced psychological benefits in terms of lower levels of functional disability, less use of emotion-focused avoidance, and reduced anxiety levels.[39]

The state of the yoga research literature clearly demonstrates that the utilization of yoga is outpacing the Western scientific study of yoga. The current review of the pediatric literature is consistent with previous reviews in finding promising results from studies with variable methodological quality. The limitations of the studies include the following: 1) few randomized, controlled trials (RCTs); 2) there are few adequate descriptions of the randomization method in the existing RCTs; 3) few studies adequately characterize the type of yoga intervention, the specific postures used, and the intensity of the intervention; 4) small sample sizes and few studies adequately justify the sample size; 5) few studies describe the qualifications of the yoga instructor; 6) the lack of an adequate description of the outcome assessor’s blind status; and 7) adverse effects of yoga interventions are not systematically described.[5]

The high utilization rates for yoga suggest it is an intervention that children and adolescents are willing to try and to sustain with some degree of adherence. The authors who reviewed the yoga literature as a treatment for anxiety suggested that yoga might be appealing because it is nonpharmacological, has few adverse risks if practiced as recommended, and may be an acceptable option to individuals who reject psychological diagnoses and treatments.[41] Additional factors may include that, compared with most other healthcare options, yoga is relatively accessible and inexpensive. Yoga is a self-care practice, so it is a good match for individuals who want to take a more active role in their healthcare. In general, yoga teachers advocate a self-accepting, noncompetitive, and nonjudgmental attitude that may be especially appealing to youth with physical limitations, body dissatisfaction, or emotional insecurities. The less threatening approach of yoga may be more enticing than competitive sports as a means to increase children’s levels of physical activity and mental well-being. That yoga may help with children’s self-regulation abilities could be a key component; children learn the skills to regulate and calm their bodies and emotions and to increase their repertoire of healthy coping skills. Furthermore, yoga may increase a youth’s sense of mastery, particularly for those children who may not have found mastery in the academic or social domains.

Along with the benefits, there are potential risks involved in yoga practice. In the popular yoga literature there are suggestions for avoiding “common yoga injuries” that include minor back and spinal problems, neck injuries, shoulder and hamstring injuries, as well as ankle, wrist, and knee injuries, but there are no available data on the frequency of these injuries.[42] Although there are a few case reports of adverse events related to the use of yoga in adults,[5] there is a need to conduct controlled studies in which systematic data could be gathered regarding any adverse effects of yoga with adults, children, and adolescents. Only one of the studies we reviewed reported an adverse event, in that case some of their yoga group participants scored lower on the self-esteem measure at the end of the study than at baseline. Other potential risks are present in individuals with specific medical conditions. Yoga poses that are beneficial for some conditions are contraindicated for others. Therefore, it is important that children and adolescents taking general yoga classes let the teacher know if they have any illnesses, injuries, or chronic conditions. Poses with the most risk tend to be inverted poses, which are contraindicated for certain disorders most often seen in adults (e.g., disc disease of the spine, extremely high or low blood pressure, glaucoma, retinal detachment, fragile or atherosclerotic arteries, a risk of blood clots, ear problems, severe osteoporosis, or cervical spondylitis).[11] There are also cautions for pregnant women, which would include pregnant teens, against practicing inversions or deep twists, as well as the need for trimester-specific guidance in the use of supine, prone, and pelvic opening poses. Pregnant women are advised to take prenatal yoga classes rather than general yoga classes if they are new to yoga, if they do not know how to appropriately modify the class content, and in order to gain positive social support. There is a need to conduct controlled studies that gather systematic data regarding any adverse effects of yoga with adults, children, and adolescents.

Given that the initial research on the use of yoga for children and adolescents is promising, more systematic study is needed that includes the following:

1. More long-term and follow-up studies
2. Larger sample sizes to enhance statistical power
3. Randomization
4. Use of appropriate control groups are recommended.

The yoga literature would benefit from standardization of the measures used to allow for accurate comparison across studies. More direct study of the underlying processes by which yoga is beneficial to children’s mental and physical health concerns will also be an important area for future research. Other potentially informative questions for exploration include the following:

1. Whether a specific style of yoga might be most helpful for a specific condition
2. If a specific dose-response relationship exists for various conditions and age groups
3. If certain yoga styles and approaches might be optimal for specific age groups
4. Whether there are specific risks in using yoga in the pediatric population
5. Which conditions might place a youth at greater risk for adverse events from yoga participation
6. How the potential benefits of yoga might be modified by cultural and societal influences, since most existing studies of yoga have been conducted in India where the practice of yoga has a tradition of greater cultural acceptance
7. How the benefits of yoga might be mediated by specific factors, such as exercise, meditation, philosophy, spirituality, and lifestyle.

There are limitations to this review as well. This review narrowed the scope of the already limited pediatric yoga literature to focus on the effectiveness of yoga as a complementary physical and mental health intervention with school-age children and adolescents. The review was not exhaustive and did not include quantitative analysis of the data (e.g., a meta-analysis). Studies evaluating physiological functioning, mental retardation, developmental disabilities, studies of children younger than school age, and studies with mixed child and adult populations were excluded. Studies published only in India and in languages other than English were also excluded. The small number of studies on any one diagnostic category made it difficult to formulate practice recommendations that are evidence based.

Many CAM interventions, including yoga, emerge from Eastern systems of medicine. As sciences, they have their own methods of observation and assessment, but those strategies have not historically included randomized, controlled trials and the other features for which Western reviewers look in rating the effectiveness of an intervention. Likewise, yoga practitioners train in small, independent training programs not affiliated with universities. If yoga is indeed to develop as a yoga therapy profession in the Western healthcare system, partnerships and cross training are needed between researchers and practitioners who are knowledgeable in the elements essential to both systems.


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