ArticleJournal of orthopaedic surgery and research2021
The effect of fatigue on asymmetry between lower limbs in functional performances in elite child taekwondo athletes.
Article in Journal of orthopaedic surgery and research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05167162 (Efficacy of the Most Commonly Used Physiotherapeutic Treatments for Acute Lower Limb Fatigue in Athletes), which is not on this map. Cited by 10 papers.
What it found
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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.
Efficacy of the Most Commonly Used Physiotherapeutic Treatments for Acute Lower Limb Fatigue in Athletes
Who cites it
10 citing papers in PubMed, 27 citations in OpenAlex.
- Does a Muscle Fatigue-Inducing Protocol Alter the Magnitude of Jump Inter-Limb Asymmetry in Healthy Adolescents?Journal of human kinetics · 2026Article
- Effect of muscle fatigue on cycling asymmetry during a constant-power test.Scientific reports · 2026Article
- Asymmetry of muscle co-activation during the two-armed kettlebell swing: insights into neuromuscular stability.Frontiers in bioengineering and biotechnology · 2025Article
- Effects of Fatigue on Ankle Flexor Activity and Ground Reaction Forces in Elite Table Tennis Players.Sensors (Basel, Switzerland) · 2024Article
- Exploring how arm movement moderates the effect of lower limb muscle fatigue on dynamic balance in healthy youth.Frontiers in sports and active living · 2024Article
- Assessment of trunk and shoulder muscle asymmetries during two-armed kettlebell swings: implications for training optimization and injury prevention.Frontiers in sports and active living · 2024Article
- The Effects of Fatigue on the Lower Limb Biomechanics of Amateur Athletes during a Y-Balance Test.Healthcare (Basel, Switzerland) · 2023Article
- Predicting the Risk of Injuries Through Assessments of Asymmetric Lower Limb Functional Performance: A Prospective Study of 415 Youth Taekwondo Athletes.Orthopaedic journal of sports medicine · 2023Article
- Ability of Countermovement Jumps to Detect Bilateral Asymmetry in Hip and Knee Strength in Elite Youth Soccer Players.Sports (Basel, Switzerland) · 2023Article
- Warm-Up Improves Balance Control Differently in the Dominant and Non-Dominant Leg in Young Sportsmen According to Their Experience in Asymmetric or Symmetric Sports.International journal of environmental research and public health · 2022Article
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInter-limb asymmetry above a certain threshold in functional performance indicates increased injury risk in sports. Fatigue has been found to increase bilateral asymmetry in lower-limb jumping performance among high-school and adult athletes, whereas this impact has not been examined in child athletes. This study aimed to examine the effect of fatigue on inter-limb asymmetry in functional performances in elite Taekwondo athletes aged between 9 and 11 years.
methodsPerformance of single-leg jumps, Star Excursion Balance Test (SEBT), and muscle (hamstring and gastrocnemius) flexibility were measured for 13 elite male child Taekwondo athletes (aged 9.85 ± 0.80 years) at both the rested and fatigued states to examine the inter-limb asymmetry. A two-way repeated measures ANOVA was conducted to examine for difference and the interaction between limb (dominant, non-dominant leg) and state (rested, fatigued state) for each test. Paired t test or Wilcoxon signed-rank test was used to compare the asymmetry magnitude at the rested vs. fatigued state for each test, and the variation of performance post fatigue in the dominant vs. non-dominant leg when appropriate.
resultsThe inter-limb asymmetry in triple-hop distance significantly (p = 0.046) increased with fatigue, whereas the asymmetry significantly (p = 0.004) decreased with fatigue in anterior (ANT) reach distance in SEBT. A significant (p = 0.027) limb by state interaction was shown for posterolateral (PL) reach distance in SEBT, wherein a significant (p = 0.005) bilateral difference was only shown at the rested state. The PL reach distance showed a significantly greater decrease (p = 0.028) post fatigue when using the dominant leg for support compared to using the non-dominant leg.
conclusionsFatigue significantly impacts inter-limb asymmetry in jump performances and dynamic balance for child athletes, while the variation of inter-limb asymmetry post fatigue may be different across tests. For the purpose of injury prevention, practitioners should consider assessing the inter-limb asymmetry for children at both the rested and fatigued state and be mindful of the fatigue response of each leg in functional tests.
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