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The Influence Of 20 Week Trampoline Training On Body Mass Index And Motor Proficiency In Children With Autism Spectrum Disorders: 871 Board #286 May 28, 2



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Journal of Physical Education and Sport
(JPES), 15(3), Art 89, pp..592 - 597, 2015
online ISSN: 2247 - 806X; p-ISSN: 2247 – 8051; ISSN - L = 2247 - 8051 © JPES
Corresponding Author CARLA LOURENÇO, E-mail:
Original Article
The effect of a trampoline-based training program on the muscle strength of the
inferior limbs and motor proficiency in children with autism spectrum disorders
1Department of Sport Sciences, University of Beira Interior, PORTUGAL
2Faculty of Sport University of Porto, PORTUGAL
Published online: September 28, 2015
(Accepted for publication september 15, 2015)
Motor proficiency is positively correlated with physical exercise, which is sometimes reduced in children with
autism spectrum disorders (ASD). The main goal of this study was to evaluate the effects of a trampoline-based
training program, over a period of 32 weeks, on both the muscular strength of inferior limbs and the motor
proficiency in children with ASD. Sixteen children diagnosed with ASD (3 girls and 13 boys, 4–10 years-old)
were included in this study. The children were randomly assigned to two groups: experimental group (EG, n=8)
and control group (CG, n=8). Over the course of the program, children kept their regular school activities. The
groups were evaluated before the onset of the program, at week 16 after the beginning of the program and at
week 32. Motor proficiency was evaluated using the Bruininks–Oseretsky test for motor proficiency (2ªed.),
(BOT2). The strength of inferior limbs was measured using the standing long jump without run-up. The
statistical analysis included the multivariate analysis (ANOVA). The trampoline-based program contributed in a
significant way to the improvement of both the strength of the inferior limbs (p>0.05) and motor proficiency
(p=0.00) in children with ASD.
Keywords: Physical activity; autism spectrum disorders; trampolines; motor proficiency; inferior limbs’
Autism is a neurodevelopmental condition clinically defined by impairments in communication and
social interaction, which is characterized by repetitive and stereotyped restricted patterns of behavior, interests
and activities (American Psychiatric Association, 2000 in Bradley, Caldwell and Underwood (2014). In many
children who have autism spectrum disorders (ASD), motor and sensory difficulties are observed (Baranek,
2002). Several studies have also reported changes in the motor development profile of these children, which
contribute to a lower physical fitness (Loh et al., 2007; Ozonoff et al., 2008; Pan, 2009; Fournier, Hass, Naik,
Loadha, and Cauraugh, 2010).
The strategies for the treatment of ASD focus primarily on cognitive stimulation, social and language
development and also on the elimination of stereotyped movements (Koring et al., 2010; Sowa and
Meulenbroek, 2012). Physical activity plays an important role in the quality of life of these individuals and has
been widely regarded as an important strategy in the promotion of physical fitness (Yilmaz, Yanardag, Birkan,
and Bumin, 2004; Lochbaum and Crews, 2003; Pan, 2011) and the reduction of the maladaptive and stereotyped
behavioral patterns (Lancioni and O'Reilly 1998; Elliott, Dobbin, Rose, and Soper (1994) and Yilmaz et al
(2004), as well as aggressive and antisocial behaviors (Allison, Basile, and Bruce MacDonald (1991);. Pan,
2010). The practice of physical activity is also regarded as having an enormous significance in improving the
nutritional status (Pitetti, Rendoff, Grover, & Beets, 2007), sensory skills (Bass, Duchowny, & Llabre, 2009),
attention, perception and communication (Hameury, et al (2010.), and academic performance (Nicholson, Kehle,
Bray, and Heest 2011; Rosenthal-Malek, and Mitchell, 1997).
Physical activity programs employing trampolines have been used in several areas, as they seem to promote the
improvement of balance, walk, muscle tone and joint flexibility in cases of traumatic spinal cord injury (Citero,
Mederdrut, and Power, 2012) and multiple sclerosis (Garcia, Mederdrut, Veloso & Fontes, 2008), as well as in
balance recovery capacity in the elderly (Aragon, Karamanidis, Vaz, & Arampatzis, 2011) and the postural
control in stroke patients (Miklitsch, Krewer, Freivogel, & Steube, 2013). In addition, the perception of the
temporal and rhythmic space, overcoming fear (Botelho, 1992), the flexibility and resistance of the abdominal
lower limb muscles and the heart rate (Leite et al. 2009) can be improved with this type of training. Notably,
Ferrarezi and Guedes (2000) reported the existence of progress in the balance and flexibility of adolescents with
cerebral palsy.
There is no study addressing the effects of trampoline-based programs on the physical fitness of
children with ASD. Therefore, in order to fill this gap in the literature, this study seeks to assess the effect of a
trampoline-based training program in the motor proficiency and muscle strength of the lower limbs of children
with ASD.
We sampled 16 children (13 boys and 3 girls) diagnosed with ASD. These children were attending pre-
school and schools of the 1
cycle of basic education in the district of Viseu. The sample was then divided into
two groups of eight children each: experimental (EG) and the control (CG) groups. Participants were between 4
and 8 years of age (EG: 5:43 ± 1:53 years; CG: 7.60 ± 1.60 years). The EG underwent a 32-week program of
trampoline training in a gym fully equipped with various types of trampolines (1 session per week lasting 45
minutes); during the same period, the GC did not participate in any organized or systematic sport activity.
Motor proficiency was assessed using a Bruininks–Oseretsky battery of tests (2nd ed., 2005) in its
reduced form (bot2), as previously used children with ASD (Dewey, Cantell, & Crawford, 2007; Gabriels et al
2012 ; Mattard-Labrecque Ben Love, & Couture, 2013). This battery consists of the following 12 trials: fine
motor precision (two tests: completion of a star and line drawing through a path); fine motor integration (two
tests, drawing two overlapping circles and drawing a diamond as similar as possible to the images presented);
manual dexterity (threading blocks); bilateral coordination (two tests: touching one’s nose with the tip of the
index finger, pivoting index and thumb while keeping the eyes closed); balance (move forward on a line heel-to-
toe); speed and flexibility (one leg walk from one side of a line to the other); coordination of upper limbs (two
tests: catching and throwing a ball with one hand and dribbling the ball alternating hands), and strength
(performing kneeling push-ups). These tests were applied individually to each child, according to the published
protocol (Bruinninks, & Bruininks, 2005), and lasted from 15 to 20 minutes. The strength of the lower limbs was
estimated by a long jump with both feet together (without run up). Each participant had three trials, in which the
goal was to jump as far as possible. For the analysis, the best jump was selected.
Both tests took place in schools attended by students and were made in three stages: before the intervention
program, at week 16 and at the end of the 32 weeks. All participants concluded the trampoline-training program.
Trampoline program
The training program took place in a gym/hall equipped with several trampolines, namely: elastic bed
trampoline, double-mini-trampoline, mini-trampoline, round elastic bed trampoline and trampolines 80 cm in
diameter. All weekly training sessions, which were planned in accordance with the objectives of the
investigation and taking into account the particular limitations of the participant population, lasted 45 minutes.
Each training session was divided into three parts: initial (5 minutes), main (35 minutes) and final (5 minutes)
parts. In the first part, through different running exercises, joint mobilization and different games, the
participants warmed-up for the exercises. In the second and main part, and to improve all the evaluated
components, specific exercises were carried out through the use of trampolines, mats, balls, bows, chairs, tables,
Swedish gymnastic bench, Swedish ladders and ropes. In the last part of the training session, in order to
stimulate social development, children collaborated with the teacher, participating in the arrangement of the
material used in the session. All training sessions were implemented and developed by a physical education
teacher. Parents/guardians attended the training and collaborated if needed.
Statistical Analysis
Descriptive statistics were employed (mean and standard deviation) to characterize the different
distributions of values. All variables followed the normal distribution according to the Kolmogorov–Smirnov
test. Differences in mean basal values of variables from the different groups were assessed using the t-test for
independent measurements. To evaluate the effectiveness of the trampoline program, analysis of variance
(ANOVA) of the repeated measures was used. The level of significance was set at 0.05. Statistical analyses were
performed using SPSS version 21.0 (SPSS Inc., Chicago, IL, USA).
Table 1 presents the results of ANOVA for repeated measures models for the different tests. It can be
observed that before the implementation of the trampoline program the CG showed mean values of leg strength
higher than the EG. Over the course of the training program there was a statistically significant improvement in
leg strength in the EG, contrary to the CG, which did not show significant changes (p> 0.05).
Table 1. Mean values (standard deviation) of the different variables in the EG and CG at three time points.
Intermediate (A=16) Final (A=32) ANOVA results Variables
Lower limbs
(23.103) 0.071 ≤0.001 ≤0.001
Fine Motor
Precision 1
(0.641) 0.009 0.712 0.132
Fine Motor
Precision 2
(1.927) 0.019 0.031 0.259
Fine motor
integration 1
(0.707) 0.181 0.203 0.830
Fine motor
integration 2
(0.886) 0.016 ≤0.001 0.011
(1.356) 0.042 0.001 0.501
(0.535) 0.880 0.020 0.002
(0.926) 0.097 0.005 0.143
(1.408) 0.761 0.000 0.003
and Speed
(1.282) 0.231 0.004 0.075
Upper limb
(1.727) 0.792 0.093 0.532
Upper limb
(1.414) 0.370 0.004 0.845
(0.916) 0.823 0.184 0.297
(7.635) 0.092 ≤0.001 ≤0.001
EG= Experimental Group; CG= Control Group; G=group; I=intervention.
Concerning motor proficiency, there were obvious changes over the course of the intervention program.
At baseline there is a considerable difference between the experimental and control groups; the former has an
average much lower in all variables, except for the coordination of upper limbs 1. Although both groups showed
improvements in the course of 32 weeks, the change in the experimental group is more significant and there is a
significant interaction between the groups and the training program (P = 0.000). After the training program there
was a significant progress in fine motor integration 2, bilateral coordination 1 and balance (p<0.05). The speed
and agility improved significantly with the training program, with notable changes occurring from the second to
the third evaluation. For the other variables there were clear improvements, but which were not statistically
significant changes.
Green et al. (2008) reported that the existence of motor limitations is very common in individuals with
autism spectrum disorders. In this regard, and considering the benefits of performing the trampoline exercises
mentioned before, this study aimed mainly to evaluate the effects of a trampoline training program on the muscle
strength of the lower limbs and motor proficiency of children with ASD. The results obtained shed light on the
impact a 32-week trampoline program has on these variables.
The training program significantly improved the leg strength, contrary to what was found for the
strength of the upper limbs, which showed less obvious improvements. This result can be explained by the
design of the training program that was implemented. In fact, in all training sessions, the exercises and proposed
content comprised various types of jumps and consequently greater demands on the lower limbs. However, it
should be noted that the arms were also used to keep balance, maintain a correct body posture and perform some
tasks during the jumps (clapping, raising and lowering the arms, launching and receiving a ball). This positive
effect of a trampoline program on physical fitness components has been observed in different studies (Lieberman
et al, 2013;. Citero et al, 2012;. Aragon, et al, 2011; Leite et al, 2009). Although these studies were not
performed on children with ASD, improvements in leg strength, cardiovascular endurance, balance and trunk
stability were found. Moreover, Yilmaz et al (2004) concluded that after 10 weeks of swimming training, there
were improvements in balance and Cheldavi, Shakerian, Shetab Boshehri and Zarghami (2014), after an
intervention program for balance training, found improvements in postural control. In the latter cases presented,
the studied participants had ASD. Although no significant improvements were obtained, there were
improvements in speed and flexibility in the experimental group when compared with the control group.
Contrary to our findings, in a study of adolescents Todd and Reid (2006) found that the training significantly
increased the distance walked or ran by children aged between 6 years and 7 months and 11 years and one
month, and in the participants in the study of Fragala - Pinkham , Haley , and O'Neil (2008 ) it reduced the time
needed to finish the path. Two facts may help explain these differences: compared to our study, in these two
reports the children were older and the training was more frequent (two weekly workouts). In our study, the
variables that make up the fine motor skills and manual dexterity have not changed significantly, except for the
Fine Motor Integration 2 (drawing a diamond as close as possible to the displayed image), which was expected,
since these dimensions were not considered in the training. With regard to the variable that recorded significant
differences, we associate it with the work that was carried out with balls (catching the ball with one hand and
then jump, jumping and throwing the ball to a target).
The two variables of bilateral coordination showed different values. Bilateral coordination 1,
corresponding to the touch display on the nose with the eyes closed, change significantly after the intervention.
In contrast, bilateral coordination 2, the pivoting of the thumb and index finger, showed no significant
improvements. We believe that the exercises described above have positively influenced the bilateral
coordination 1, as well as the more specific exercises of coordination that have been conducted over the
trampolines (spreading and joining legs, performing scissors, raising arms while jumping, clapping while
jumping). However, as the coordination of the upper limbs was not so stimulated, our intervention program did
not lead to significant improvements in the coordination of the upper limbs. Contrary to our study, through an
intervention program conducted with trampoline Mitsiou, Sidiropoulou, Giagkazoglou, and Tsimaras (2011)
improved the neuromuscular coordination of 6–11-year-old children with Developmental Coordination Disorder.
It is important to stress that our experimental group had a mean age of 5.43 years, that is, younger children than
those studied by Mitsiou et al. (2011). To evaluate the coordination of the upper limbs, tasks with a ball are
performed, as already described in the methodology. Papadopoulos et al. (2012) found that the high-functioning
autism group showed more difficulty at the motor level, such as in ball skills and balance exercises, than children
with Asperger syndrome, which may explain the fact that we could not achieve statistically significant results.
As for the total score of the Bruininks–Oseretsky (2nd ed. 2005) battery of tests applied, the reduced form that
evaluates the driving proficiency showed significant improvement (p = 0.000) in contrast to the study of Wuang,
Wang, Huang e Su (2010), in which only autistic children who joined the horseback riding program and attended
the occupational therapy sessions had significant improvements. According to Wrotniak, Epstein, Dorn, Jones
and Kondilis (2006), motor proficiency is positively associated with physical activity and inversely associated
with sedentary activity in children.
Although no specific studies were found in the literature on the effect of trampoline training programs
in children with ASD, some research has been done in particular populations (Apoloni , Lima, and Vieira, 2013;
Ferrarezi and Guedes 2000). The study by Apoloni et al. (2013) consisted of implementing a 12-week program
of trampolines (jumping, playing and running in the trampoline elastic bed) in children with Down syndrome,
and the results have shown a significant improvement in the postural control in these children. After 16 weeks of
intervention, the use of the trampoline has also brought progress in the balance and flexibility of adolescents
with cerebral palsy Ferrarezi et al. (2000). Furthermore, Miklitsch, Krewer, Freivogel and Steube (2013) found
improvements after an intervention using a trampoline-based program in the neuromuscular coordination of
patients who suffered a stroke.
The data of this study should be interpreted and analyzed taking into account some limitations. First,
since the selected sample is very small, it is impossible to generalize the results to the ASD population. Second,
although both groups were similar from the point of view of biological and morphological variables, their
formation in this study was not based on randomization and thus we cannot exclude the presence of some
confounding factors in the results.
Considering the results described in this study, it can be concluded that the trampoline-based training
significantly contributed to the improvement of both the motor proficiency and strength of the inferior limbs.
Taking into account that children with ASD have balance problems, it is urgent and necessary to develop and
implement new strategies and intervention programs designed according to principles of exercise and motor
learning for children with ASD (Bhat, Landa, & Galloway, 2011). Thus, we recommend the trampoline training,
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Esta pesquisa teve por objetivo descrever os testes e o tratamento pediátrico de paralisia cerebral espástica em fase de independência motora para a flexibilidade dos membros inferiores e para o desenvolvimento do aumento no tempo de equilíbrio. Foram selecionados, para participar deste estudo, 3 sujeitos com paralisia cerebral em fase de independência motora. Sujeito 1 do sexo masculino, 12 anos, diplégico espástico; sujeito 2 do sexo masculino, 13 anos, hemiplegia direita espástica; sujeito 3 do sexo feminino, 10 anos, hemiplegia espástica esquerda. A metodologia usada para a avaliação foi o teste de “sentar e alcançar”, a goniometria e o teste de equilíbrio. O procedimento é composto em 16 semanas, com sessões individuais de 30 minutos, duas vezes por semana. Para conseguir flexibilidade dos membros inferiores, foi usado o método de facilitação neuromuscular proprioceptiva, e para estímulos proprioceptivos e vestibulares (equilíbrio) foram usados saltos no mini-trampolim. O resultado obtido com o tratamento proposto foi um ganho na flexibilidade, medido pelo teste de "sentar e alcançar" de 30% para o sujeito 1, 40% para o sujeito 2 e 40 % para o sujeito 3, e o ganho obtido com o tempo de equilíbrio foi de 160% para o sujeito 1, 100% para o sujeito 2 e 500% para o sujeito 3The aim of this paper is to describe the tests and pediatric treatment of motor-independent spastic cerebral palsy to increase lower-limbs flexibility and equilibrium time. Three subjects were selected for the experiment: a twelve-year-old boy with spastic diplegia, a thirteen-year-old boy with right spastic hemiplegia and a ten-year-old girl with left spastic hemiplegia. The evaluation methodology consisted of sit-and-reach test, goniometry and equilibrium test. The treatment procedure consisted of two weekly individual 30-minute sessions covering a period of 16 weeks. Proprioceptive neuromuscular facilitation method was used to increase lower-limbs flexibility and miniboard jumping was used to stimulate proprioceptive and vestibular equilibrium. The results showed a flexibility gain through sit-and-reach test of 30% for subject 1, 40% for subject 2 and 40% for subject 3, and equilibrium time gain was of 160% for subject 1, 100% for subject 2 and 500% for subject 3
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This study investigated the outcomes of an intervention package on participation in tWo physical activities: snoWshoeing and Walking/jogging. Three male secondary school students Who had been diagnosed With autism and Were attending a school for students With intellectual disabilities participated in a 6-month outdoor physical activity program. The authors used a changing conditions design; the program Was divided into six phases by the amount of edible reinforcers provided during sessions. A self-monitoring board, verbal cuing, and edible reinforcers Were used in the study. Distance snoWshoed, Walked, and jogged per 30-min session increased as edible and verbal reinforcement decreased. The results suggest that interventions can be developed to promote sustained participation in physical activity for individuals With autism.
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Investigations have focused on exercise as an intervention with individuals with autism. The purpose of this investigation was to conduct exercise-training programs following standard guidelines with individuals with autism to stimulate future researchers to implement such programs. Aerobic and muscular strength training programs (MST) were con-ducted. Aerobic fitness increased 33%, 50%, and 33% for the 3 participants. For the MST, bench press increased 19% and 28%, low row increased 47% and 21%, and leg press increased 29% and 12% for the 2 participants. Future directions are discussed with regard to using exercise-training programs to not only enhance physical health but also the psychological well-being of individuals with autism.
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Objective: To investigate the effects of a predefined mini-trampoline therapy programme for increasing postural control, mobility and the ability to perform activities of daily living after stroke. Design: Randomized non-blinded controlled pilot study. Setting: Neurological rehabilitation hospital. Subjects: First-time stroke; age 18-80 years; independent standing ability for a minimum of 2 minutes. Intervention: Patients were randomized into two groups: the mini-trampoline group (n = 20) received 10 sessions of balance training using the mini-trampoline over three weeks. The patients of the control group (n =20) participated 10 times in a group balance training also over three weeks. Main measures: Postural control (Berg Balance Scale, BBS), mobility and gait endurance (timed 'up and go' test, TUG; 6-minute walk test, 6MWT) and the ability to perform activities of daily living (Barthel Index, BI). Measurements were undertaken prior to and after the intervention period. Results: Both groups were comparable before the study. The mini-trampoline group improved significantly more in the BBS (P = 0.003) compared to the control group. Mean or median differences of both groups showed improvements in the TUG 10.12 seconds/7.23 seconds, the 6MWT 135 m/75 m and the BI 20 points/13 points for the mini-trampoline and control group, respectively. These outcome measurements did not differ significantly between the two groups. Conclusion: A predefined mini-trampoline training programme resulted in significantly increased postural control in stroke patients compared to balance training in a group. Although not statistically significant, the mini-trampoline training group showed increased improvement in mobility and activities of daily living. These differences could have been statistically significant if we had investigated more patients (i.e. a total sample of 84 patients for the TUG, 98 patients for the 6MWT, and 186 patients for the BI).
Introdução. A lesão medular é uma desordem neurológica frequente, importante causa de morbidade e mortalidade e, que traz consequên­cias graves, às vezes irreversíveis, na vida dos indivíduos acometidos. O trampolim é um recurso fisioterapêutico que pode contribuir para a recuperação de pacientes com acometimento neurológico. Objeti­vo. Verificar os efeitos da intervenção fisioterapêutica (cinesioterapia) utilizando o trampolim no equilíbrio, na marcha, na flexibilidade arti­cular e no tono muscular de uma paciente com trauma raquimedular incompleto, nível C7-T1, imediatamente após o término do trata­mento e após seis meses sem intervenção. Método. Foi realizada ava­liação do equilíbrio (escala de Berg), marcha (escala de Tinetti), tono (escala de Ashworth) e flexibilidade (flexímetro) pré, pós-tratamento e, imediatamente seis meses depois do término do tratamento, sem intervenção. Resultados. Obteve-se melhora do equilíbrio e da mar­cha, houve interferência no tono muscular, na flexibilidade articular ora positiva, ora negativamente dependendo da articulação analisada, depois da intervenção e no follow up. Conclusão. cinesioterapia com trampolim melhorou o equilíbrio e a marcha e, modificou o tono e a flexibilidade articular, porém a manutenção desses efeitos após seis meses sem tratamento foi heterogenia em um caso de lesão medular traumática incompleta.
Purpose The aim of this study was to investigate the effect of balance training intervention in children with autism spectrum disorder (ASD), and to explore the relative role of the sensory systems in such kids. Methodology We recruited 20 school children (IQ > 80) diagnosed with ASD, and categorized them in two groups; a 10-member training group (average age: 7.70 ± 1.05) and a 10-member control group (average age: 7.90 ± 1.10). Thus, following a six-week-long balance training intervention in four conditions of bipedal upright stance [compliant (Foam) vs. non-compliant (Hard) with eyes-open (EO) vs. eyes-closed (EC)], we examined measures such as mean velocity (V), anteroposterior (AP) and mediolateral (ML) axis displacement, and compared the results to those calculated prior to the initiation of the intervention using MANOVA test. Results This study showed that the balance training program efficiently improved the postural control in ASD suffering children, and that removing the visual and plantar proprioceptive information led to increased sway in both groups. The training group performed significantly better than the control group in all conditions. Conclusion It is thus concludable that children suffering from ASD can benefit from such balance training programs to improve their balance and postural control.
There is now a growing body of research examining movement difficulties in children diagnosed with high functioning autism (HFA) and Asperger's disorder (AD). Despite this, few studies have investigated the kinematic components of movement that may be disrupted in children diagnosed with these disorders. The current study investigated rapid aiming movements in 19 individuals diagnosed with HFA, 20 individuals diagnosed with AD and 18 typically developing (TD) controls. A novel touchscreen version of a Fitts’ aiming task was administered that required participants to make 10 reciprocal aiming movements between targets. Task difficulty was manipulated by varying the size and distance between targets. Movement time in the HFA and AD groups was comparable to TD controls. Children with HFA displayed more constant and variable error across repeated aiming attempts compared to the TD group that may be attributed to deficits in feedforward online refinement of movement. These findings are in accordance with previous gait, ocular motor, upper limb and neuroimaging studies that suggest that the cerebellum may underlie movement disturbance in individuals diagnosed with HFA. Additionally, differences in the nature of upper limb motor disturbance in HFA may serve as a useful future adjunct to clinical measures.
It is generally agreed that regular physical exercise promotes physical and mental health, but what are the benefits in people with Autism Spectrum Disorders (ASD)? This meta-analysis evaluates 16 behavioural studies reporting on a total of 133 children and adults with various variants of the syndrome who were offered structured physical activities either in an individual or a group context. The effects on social and motor deficiencies, two of the three primary symptom clusters of ASD, were normalized to afford a quantitative evaluation. Results pertaining to communication deficits were insufficient to permit classification. All activity programmes yielded significant progress on the measures assessed, but the individual programmes elicited significantly more improvement than the group interventions in the motor and, more surprisingly, also in the social domain. Although overall sample sizes were small, the combined results do permit the tentative conclusion that in terms of motor performance and social skills children and adults with ASD benefit most from individual exercise interventions. Further research of the impact of individual and group interventions on communication deficits in particular as well as studies gauging the extent to which exercise effects depend on ASD symptom severity are warranted.