The stakes are surprisingly high for such a young age group. International guidelines recommend that toddlers accumulate at least 180 minutes of physical activity per day, including structured activity, while limiting restraint and screen time and securing 11 to 14 hours of good-quality sleep within every 24-hour period. Yet the evidence suggests most toddlers fall dramatically short. In an Australian study cited by the research team, fewer than 9 percent of toddlers met the full suite of national 24-hour movement guidelines for the early years. While 96.5 percent met the physical activity target and 79.7 percent met the sleep target, a mere 11.4 percent stayed within recommended sedentary screen time limits. Data from Singapore tell a similar story: around 82 percent of toddlers met sleep recommendations, but only about half met physical activity guidelines and fewer than 39 percent stayed within screen time limits. Canadian studies echo the pattern, with adherence to sleep and activity guidelines generally high but the majority of two-year-olds exceeding screen time recommendations.

Why does this matter so much? Because the early years are a period of extraordinary neural plasticity, when the foundations of motor competence, cognition, and emotional regulation are laid down. Research shows that toddlers’ gross motor skills are positively associated with cognitive development, and that shorter naps combined with a higher proportion of nighttime sleep correlate with better cognitive outcomes. Conversely, the prevalence of below-average motor skills in young children appears to be higher than normative samples would predict—a red flag that targeted developmental programmes can potentially address, since studies have shown such programmes can improve gross motor skills in toddlers. Music, meanwhile, is far more than entertainment at this age. When caregivers receive music training, children in their care show increased visual, vocal, and physical engagement, and music training in kindergartens has been shown to improve inhibitory control, a core executive function. Musical workshops built around sound-producing objects have been found to enhance toddlers’ natural exploratory drive.

Despite this converging evidence, no study to date has evaluated a holistic programme in early childhood education and care settings that integrates physical activity, sedentary behaviour, sleep, and motor and musical skills simultaneously. That gap is what MoviMusi is designed to fill. The trial will run over 24 months in the capital cities of three Spanish regions—Valencia, Murcia, and Toledo—chosen because they reflect the diversity of the Spanish educational system. In total, 24 public early childhood education and care centres will participate, split evenly between an intervention group and a control group: five centres per arm in Valencia, four per arm in Murcia, and three per arm in Toledo. With an average class size of 13 toddlers, this translates to roughly 312 children, distributed as 130 toddlers in Valencia, 104 in Murcia, and 78 in Toledo.

The trial’s design reflects the statistical realities of studying children in group settings. Because children within the same classroom behave more similarly to one another than to children in other classrooms—an effect quantified by an intraclass correlation—the researchers used cluster-randomisation formulas to calculate their sample. They powered the study to detect an expected increase of 8 minutes of moderate-to-vigorous physical activity per school day, building on their own previous accelerometry work showing that children aged two to three accumulate about 40 minutes of such activity during childcare hours. With a significance level of 5 percent, 90 percent statistical power, and an intraclass correlation of 0.35, 24 centres emerged as the required sample. Randomisation will occur only after baseline measurements are complete, at the end of the first year, performed by an independent researcher using a computer-generated sequence—a blinded procedure that protects against allocation bias.

What makes MoviMusi genuinely distinctive is its participatory philosophy. Rather than imposing a rigid, top-down curriculum, the researchers will work with each intervention centre’s principals, educators, and families to co-design a programme tailored to that centre’s specific realities. Previous research suggests these horizontal, dialogic interventions are more effective at changing school culture around physical activity than vertical, prescriptive ones. The programme unfolds along three axes. First, training: educators and families attend seminars and workshops on promoting physical activity as healthy behaviour and using music as a didactic resource. Second, participation: over two months, each institution designs its own movement and music programme, supported by baseline data on the personal, social, and environmental correlates of the children’s movement behaviours. Third, implementation: the specific actions run for six months, after which the team evaluates effectiveness against the control group, whose centres continue their usual curriculum.

The measurement toolkit is remarkably comprehensive for a population so young. Children will wear ActiGraph wGT3X-BT accelerometers on their right hip for one full week, from waking to bedtime, with data processed in 15-second epochs and scored using validated cutoffs for two-year-olds. Sleep will be captured through the Spanish-adapted Brief Infant Sleep Questionnaire, supplemented by teacher-recorded nap times during school hours. Motor skills will be assessed with the Peabody Developmental Motor Scales, third edition, a standardised instrument validated for Spanish children from six months to five years. Musical skills will be measured with MUSKITO—a new scale the research team itself is developing—covering listening, singing, instrumental interpretation, improvisation or composition, and movement. Direct observation during unstructured outdoor play will use a modified version of the OSRAC-P system, in which trained coders record a child’s activity state every 25 seconds in five-second observation windows, with intercoder reliability verified using Cohen’s kappa.

Beyond the child-level outcomes, the study casts a wide net across the entire educational ecosystem. Researchers will assess the quality of each centre using the Infant/Toddler Environment Rating Scale, measure playground area and density using satellite imagery and geographic information systems, and classify playgrounds as low or high density based on free space per child. Parents will complete validated questionnaires on their children’s after-hours activity, screen time, and modes of transport to school, alongside a dedicated scale measuring barriers to active commuting. Focus groups with educators and families, conducted at baseline and after implementation, will probe perceptions of barriers and facilitators to embedding movement and music in daily practice. The team will even analyse official curriculum documents to understand how public authorities promote—or fail to promote—movement and music in early childhood education, and will invite education authorities to result-dissemination meetings.

The researchers are candid about the challenges ahead. Interventions must respect each centre’s internal culture rather than dictate activities; family engagement with questionnaires cannot be taken for granted; accelerometer data will inevitably be lost to the absences that are common in toddler classrooms; and coordinating a project across three cities with different administrative rhythms demands dedicated local leads. The statistical plan anticipates these realities, using mixed-effects longitudinal models that adjust for baseline values, age, sex, and body mass index, with random effects for cities, groups, and participants, and multiple imputation for missing data handled by a blinded analyst. Ethical approval has been granted by the University of Valencia’s ethics committee, and written informed consent will be required from all participating families.

If MoviMusi succeeds, the implications could ripple well beyond the 24 participating nurseries. The team plans to share results at three levels—within each centre, at public events in the three cities, and through an open conference—culminating in a set of good-practice guidelines for promoting movement and music opportunities that could inform curriculum design and teacher training nationally and internationally. The study also answers a call from leading movement-behaviour researchers, who have identified interventions for children under three as a critical frontier. In a world where toddler screen time is quietly eroding the building blocks of healthy development, the idea that songs and structured play, delivered through the everyday curriculum, could shift the trajectory of an entire generation is a proposition worth testing rigorously. MoviMusi is now positioned to deliver exactly that test.

Subject of Research: A cluster-randomised controlled trial of a movement and music programme on movement behaviours and motor and musical skills in toddlers

Article Title: Effectiveness of a movement and music programme on activity, sedentary, and sleep behaviours and motor and musical skills in young children: protocol for the MoviMusi cluster randomised controlled trial

Article References: del Mar Bernabé-Villodre, M., Martínez-Bello, V. E., Vega-Perona, H., Díaz-Barahona, J., García-Ochoa, Y. C., Molines-Borrás, S., Gértrudix-Barrio, F., Montoya-Rubio, J. C., Fernández-Vilar, M. Á., Azorín-Delegido, J. M., Filenko, N., Martínez-Rojas, Á., & Martínez-Bello, D. A. (2024). Effectiveness of a movement and music programme on activity, sedentary, and sleep behaviours and motor and musical skills in young children: protocol for the MoviMusi cluster randomised controlled trial. Journal of Activity, Sedentary and Sleep Behaviors, 3(1), Article 28. https://doi.org/10.1186/s44167-024-00065-5

Image Credits: AI Generated

DOI: 10.1186/s44167-024-00065-5

Keywords: early childhood education, physical activity, sedentary behaviour, sleep, motor skills, musical skills, cluster randomised controlled trial, toddlers, MoviMusi, accelerometry, 24-hour movement guidelines, Spain

The research, conducted by Anika Stoffel, Johanna Linimayr, and Christina Schulze of the Zurich University of Applied Sciences, surveyed 35 parents of children aged 4 to 7 with a confirmed diagnosis of developmental coordination disorder, commonly abbreviated as DCD. Families lived across eight regions of German-speaking Switzerland and Liechtenstein, and each parent evaluated the playground their child used most frequently. The children, whose average age was 6.0 years, were predominantly boys, and more than half showed impairments in gross motor function. Eight parents reported common comorbidities, including attention deficit hyperactivity disorder, learning disability, Tourette syndrome, and vestibular disorder, reflecting the broader clinical reality that DCD rarely appears in isolation.

The study’s conceptual backbone is a framework of occupational wellbeing developed by Saraswati and colleagues, which breaks a child’s experience of meaningful activity into five domains: competence, autonomy, contentment and pleasure, identity, and belonging. In playground terms, competence means mastering the climb up a lookout tower or balancing across a beam; autonomy means freely choosing what and with whom to play; contentment describes the deep immersion of uninterrupted play; identity reflects a child’s sense of self built on strengths and interests; and belonging captures the experience of connecting with peers. The researchers paired this wellbeing framework with the concept of usability, defined as the ability to navigate and interact with an environment on comparable terms with others, always from the user’s own perspective rather than against official design standards.

Because no existing German-language instrument could capture both constructs, the team built a custom questionnaire, refining it through panels of researchers, occupational therapists, and mothers of young children. Parents rated statements on five-point Likert scales covering everything from sensory stimulation to equipment accessibility, and they added open-ended comments at the end. The data were analyzed descriptively using SPSS, an approach the authors acknowledge was appropriate given the small, exploratory sample. Recruitment ran through 120 pediatric occupational therapy practices, of which 23 agreed to distribute survey materials, with an extension through a Swiss parent counseling organization’s social media channels after the initial four-week window produced too few responses.

The headline finding is unambiguous: parents overwhelmingly value playgrounds. Ninety-four percent agreed or strongly agreed that the playground is an important and valuable play area for their child, and 88 percent endorsed the idea that playgrounds should stimulate multiple senses. Eighty-three percent agreed that diverse children can play according to their own abilities, and 80 percent said versatile equipment that can be used in many ways helps their child. Most families lived within a kilometer of their favorite playground, children spent an average of 72 minutes per visit, and 77 percent of the playgrounds were rated attractive or very attractive. On the surface, the person-environment fit appears remarkably good.

Beneath that positive surface, however, the wellbeing data tell a more complicated story. While autonomy scored high, with a median of 4.5, and contentment and pleasure reached a median of 4, with 89 percent of parents reporting their child has fun almost always or often, the domain of competence exposed the sharpest limitations. Only 34 percent of parents said their child frequently seeks out motor challenges, and exactly half reported that their child could not consistently master playground risks without help. The activities children most wanted to do, climbing (66 percent) and swinging (54 percent), were precisely the activities most often restricted: 54 percent of parents said balancing was difficult, 42 percent flagged climbing, 38 percent monkey bars, and 32 percent swinging. In other words, the very equipment that draws children to playgrounds is where children with DCD hit a wall.

This contradiction between desire and capability carries real clinical weight. Children with DCD are already at elevated risk of anxiety, depression, low self-efficacy, and poor quality of life, and repeated experiences of failure in a public, peer-visible setting can reinforce motor anxiety and learned helplessness. At the same time, risky play is a documented motivator for physical activity and health. The authors argue that playgrounds must therefore strike a delicate balance: offering graduated challenges that invite children to take the next step in mastering motor skills at different levels, without excluding those who are not yet ready. Equipment with multiple difficulty levels, generous handrails, wide platforms, and surfaces that remain safe in all weather emerged from parents’ comments as concrete design priorities.

The domain of belonging showed similarly mixed results. Seventy-one percent of parents said their child could play easily with other children, and the overall belonging score reached a median of 4. Yet responses about positive affirmation from peers spanned the full range from 1 to 5, and among the five children who faced social difficulties, outright social isolation was reported in two cases. Qualitative comments emphasized that keeping up with peers was the key to inclusion in parents’ eyes. The authors note this is more optimistic than earlier studies describing solitary play tendencies in DCD, but they caution that subtle peer dynamics may still reinforce isolation in children already vulnerable to negative self-appraisal. They also raise an intriguing possibility: children may be quietly adapting their own play styles and creating their own places on the playground in ways parents cannot observe, meaning some of the apparent fit may reflect children’s hidden agency rather than genuinely inclusive design.

The study has clear limitations. The self-developed questionnaire was not statistically validated, the sample of 35 is small and purposively recruited, potentially overrepresenting highly engaged parents, and there was no comparison group of typically developing children. Crucially, the children’s own voices are absent; parents served as proxy informants, and prior research suggests adult perceptions of children’s play choices may diverge from children’s lived experiences. The authors call for future work incorporating direct child reports, observational data, and universal design principles to build playgrounds that work for all children from the outset.

Even so, the implications are immediate. For occupational therapists, parents are valuable informants when evaluating a child’s competence and wellbeing in natural settings, and the five-domain framework offers a structured lens for tailoring interventions to playground participation. For planners and communities, the message is that accessibility is not just about ramps for wheelchairs; it is about whether a child with coordination difficulties can climb, swing, and balance alongside friends without help. Playgrounds, the study concludes, are genuinely important places where children with DCD experience autonomy, joy, and connection, but realizing their full inclusive potential will require design that treats the full spectrum of motor ability as a core requirement rather than an afterthought.

Subject of Research: Playground usability and occupational wellbeing in children with developmental coordination disorder

Article Title: Occupational wellbeing on playgrounds: Parents’ views on children with coordination disorder

Article References: Stoffel, A., Linimayr, J., & Schulze, C. (2025). Occupational wellbeing on playgrounds: Parents’ views on children with coordination disorder. Scandinavian Journal of Occupational Therapy, 32(1), Article 2526417. https://doi.org/10.1080/11038128.2025.2526417

Image Credits: AI Generated

DOI: 10.1080/11038128.2025.2526417

Keywords: developmental coordination disorder, playgrounds, occupational wellbeing, inclusive design, parent perspectives, child development, motor skills, occupational therapy, usability, social participation, Switzerland, pediatric health

The research team set out to answer a deceptively straightforward question with the most rigorous tools available. Social skill deficits are a core feature of autism spectrum disorder, affecting how children initiate interactions, interpret social cues, and maintain relationships. While behavioral therapies remain the mainstay of intervention, physical exercise has attracted growing interest as a complementary approach, partly because it is inexpensive, accessible, and carries well-documented physical health benefits. Previous meta-analyses, including work by Sowa and Meulenbroek in 2012 and Healy and colleagues in 2018, had reported encouraging effects, but questions persisted about study quality, publication bias, and whether the apparent benefits would survive stricter scrutiny.

To address those questions, the researchers searched four major databases—PubMed, Web of Science, Embase, and Scopus—from their inception through January 10, 2025, using an exhaustive search strategy that combined terms for exercise, autism, childhood, and social skills. They restricted inclusion to randomized controlled trials, the gold standard for testing causal effects, because non-randomized designs are vulnerable to selection bias and inflated effect estimates. After screening against predefined eligibility criteria, eleven randomized controlled trials involving 349 children made it into the final analysis. Methodological quality was evaluated with the Cochrane Risk of Bias Tool, and the statistical work was carried out in RevMan 5.3.5 and Stata 16.0, with subgroup, sensitivity, and publication-bias analyses built into the plan from the start.

The headline result was modest but statistically significant. Pooling the eleven trials under a random-effects model, the team calculated a standardized mean difference of 0.34, with a 95 percent confidence interval of 0.03 to 0.65 and a p-value of 0.03. In plain terms, children who participated in structured exercise programs scored somewhat higher on social skill measures than children in control conditions, and the heterogeneity statistic, I-squared, came in at 49 percent, indicating moderate variability among studies. A standardized mean difference of 0.34 falls into the small-effect range by conventional conventions, meaning the average treated child would fare better than roughly 63 percent of untreated children—a real but far from transformative shift.

Then came the twist that gives this meta-analysis its unusual honesty. In a post-hoc sensitivity analysis, the researchers removed one statistically influential study and re-ran the model. With ten trials remaining, the pooled effect shrank to a standardized mean difference of 0.19, the confidence interval widened to span zero, from minus 0.03 to 0.41, and the p-value rose to 0.09, which fails the conventional threshold for statistical significance. Notably, heterogeneity collapsed to zero, suggesting the remaining studies were internally consistent but collectively inconclusive. This kind of fragility analysis is increasingly recognized as essential in evidence synthesis, because a pooled estimate that depends on a single trial can mislead clinicians and policymakers if that trial happens to be an outlier for reasons unrelated to the intervention itself.

The team also probed whether the length of the intervention mattered, dividing studies into duration subgroups. The answer was no: differences among duration subgroups were not statistically significant, with a p-value of 0.61. Longer programs were not clearly superior to shorter ones, a finding that complicates the intuitive assumption that more practice should yield more social gains. On the question of publication bias—the tendency for small or null studies to go unpublished—Egger’s tests detected no significant small-study effects in either the primary analysis, with a p-value of 0.432, or the sensitivity analysis, with a p-value of 0.263. Even so, the authors note that publication bias could not be definitively excluded, a caveat that matters in a field where small trials of behavioral interventions are notoriously prone to selective reporting.

The eleven included trials spanned a striking diversity of exercise modalities, reflecting the creativity of researchers in this space. The broader literature from which these trials emerge includes mini-basketball training programs, which one cited study linked to improvements in social communication and even white matter integrity in the brain; structured physical activity curricula such as SPARK; martial arts and Kata techniques; therapeutic horseback riding; aquatic programs that use water as a medium of communication; sensory-motor integration exercises; and recreational ball games for preschoolers. The mechanistic rationale is plausible on several fronts: exercise offers structured, predictable social contexts; it engages motor circuits that overlap with social-cognitive networks; and animal work, including a well-known study on rapid synapse formation during motor learning published in Nature, hints at how physical activity might prime neural plasticity during development.

Yet the new analysis tempers the enthusiasm that has surrounded some of these individual findings. The GRADE quality assessment summarized in the paper reflects the limited evidence base, and the authors explicitly state that variability in protocols and outcome measures makes the findings difficult to generalize. Different trials measured social skills with different instruments, delivered exercise at different intensities and frequencies, and enrolled children across a wide range of ages and symptom severities. That heterogeneity of methods, even when statistical heterogeneity is low, means the pooled estimate averages over interventions that may work through different mechanisms or not at all in some subgroups of children.

What should families and practitioners take away? The authors’ conclusion is measured: physical exercise may have a small beneficial effect on social skills in children with autism, and given its low cost and broad health benefits, it remains a reasonable addition to a comprehensive support plan. But exercise should not be presented as an established treatment for core social deficits on the strength of the current evidence. The finding that the pooled effect dissolves without one influential study is a reminder that single dramatic trials, however compelling, need replication before they reshape clinical practice. The context is significant: according to surveillance data cited in the paper from the United States Centers for Disease Control and Prevention’s Autism and Developmental Disabilities Monitoring Network, autism is identified in a substantial and rising share of children, so even small, reliable interventions could have large public health implications if their effects were confirmed.

The path forward, the researchers argue, lies in larger and more rigorous randomized controlled trials designed to clarify both the magnitude of any effect and the moderators that shape it—factors such as child age, baseline social functioning, intervention type, dose, and the social richness of the exercise setting. Until those trials arrive, the honest summary of the science is this: exercise is good for autistic children for many reasons, and it might modestly help their social skills, but the strongest statistical case for that social benefit currently rests on shaky ground. In a research landscape often criticized for overselling positive findings, a meta-analysis willing to publish its own fragility is a quiet kind of progress—and perhaps the most trustworthy result of all.

Subject of Research: Effects of physical exercise interventions on social skills in children with autism spectrum disorder

Article Title: Effects of Physical Exercise Interventions on Social Skills in Children With Autism Spectrum Disorder: A Systematic Review and Meta-Analysis

Article References: Tan, Q., Lei, Z., Chang, J., & Yao, L. (2026). Effects of Physical Exercise Interventions on Social Skills in Children With Autism Spectrum Disorder: A Systematic Review and Meta-Analysis. Journal of Autism and Developmental Disorders. https://doi.org/10.1007/s10803-026-07462-6

Image Credits: AI Generated

DOI: 10.1007/s10803-026-07462-6

Keywords: autism spectrum disorder, physical exercise, social skills, meta-analysis, randomized controlled trials, children, intervention, publication bias, sensitivity analysis, motor skills, evidence synthesis, Effects