SynthesisInternational journal of environmental research and public health2021
The Effect of Intensity, Frequency, Duration and Volume of Physical Activity in Children and Adolescents on Skeletal Muscle Fitness: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
Synthesis in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 6 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- Effects of physical activity interventions on physical fitness in preschool children: a meta-analysis of randomized controlled trials and dose-response study.BMC public health · 2025Pooled it
- Reviewing the association between motor competence and physical activity from a behavioral genetic perspective.Frontiers in psychology · 2025Pooled it
- Pooled it
- Changes of brain-derived neurotrophic factor (BDNF) levels after different exercise protocols: a systematic review of clinical studies in Parkinson's disease.Frontiers in physiology · 2024Pooled it
- Developing the optimal gross movement interventions to improve the physical fitness of 3-10 year-old children: a systematic review and meta-analysis.Frontiers in psychology · 2024Pooled it
- Are the adverse health effects of air pollution modified among active children and adolescents? A review of the literature.Preventive medicine · 2022Pooled it
- The Influence of Structured Multisport Activities at Different Weekly Frequencies on the Gross Motor Development of Preschool Children: Evidence for a Dose-Response Relationship.Journal of sports science & medicine · 2026Article
- The impact of physical activity on social-emotional competence among female graduate students: a three-wave longitudinal study in Chinese Universities.BMC public health · 2026Article
- Integrating remote high-intensity interval training into multi-component obesity treatment for adolescents: Impacts on body composition, fitness, and lifestyle.Obesity pillars · 2025Article
- Association Between Physical Activity, Sedentary Behavior and Sleep Disorders in Chronic Obstructive Pulmonary Disease Patients: A Cross-Sectional Study.International journal of chronic obstructive pulmonary disease · 2025Article
- The Fragmented QRS Complex in Lead VJournal of cardiovascular translational research · 2024Article
- Effects of a physical education intervention on children's physical activity and fitness: the PROFIT pilot study.BMC pediatrics · 2024Article
- Protocol Study: Resistance Training Program, Nutritional, Sleep, and Screen Use Recommendations in Schoolchildren from Educational Centers in the Extreme South of Chile.Methods and protocols · 2023Article
- A comprehensive normative reference database of muscle morphology in typically developing children aged 3-18 years-a cross-sectional ultrasound study.Journal of anatomy · 2023Article
- Comparison of the Relationship between Visual Acuity and Motor Function in Non-Elderly and Elderly Adults.Journal of clinical medicine · 2023Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Physical activity could improve the muscle fitness of youth, but the systematic analysis of physical activity elements and muscle fitness was limited. This systematic review and meta-analysis aim to explore the influence of physical activity elements on muscle fitness in children and adolescents. We analyzed literature in Embase, EBSCO, Web of Science, and PubMed databases from January 2000 to September 2020. Only randomized controlled studies with an active control group, which examined at least 1 muscle fitness evaluation index in individuals aged 5-18 years were included. Articles were evaluated using the Jaded scale. Weighted-mean standardized mean differences (SMDs) were calculated using random-effects models. Twenty-one studies and 2267 subjects were included. Physical activity had moderate effects on improving muscle fitness (SMD: 0.58-0.96,
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.