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Low-Load Plyometric Training to Improve Running in Children With Generalised Joint Hypermobility: A Single Subject
Annie Chappell1,2,3, Devinda Dissanayake1, Ceci Ho1
1School of Allied Health, Curtin University, Bentley, WA, Australia.
Physical & Occupational Therapy in Pediatrics
|August 6, 2026
Summary
This study investigated a plyometric program for children with Generalized Joint Hypermobility (GJH). The intervention showed positive trends in running performance and participation, and significantly reduced kinesiophobia in most participants.
Area of Science:
- Pediatric Orthopedics
- Sports Medicine
- Rehabilitation Science
Background:
- Generalized Joint Hypermobility (GJH) affects children's physical activity and can lead to kinesiophobia.
- Effective interventions are needed to improve running performance and participation in children with GJH.
Purpose of the Study:
- To investigate the effect of an individualized low-load plyometric program on running performance, participation, and kinesiophobia in children with GJH.
- To assess changes in pain, fatigue, and other functional measures.
Main Methods:
- Single subject research design with baseline, intervention, withdrawal, and follow-up phases.
- Participants (n=8) with GJH underwent a 10-week individualized low-load plyometric program.
- Primary outcome: Goal Attainment Scaling (GAS); Secondary outcomes: VAS for pain/fatigue, kinesiophobia (Tampa Scale), and physical performance tests.
Main Results:
- Positive trends observed in 5/24 goals related to running performance, physical activity, and participation.
- Six participants demonstrated clinically significant reductions in kinesiophobia.
- No significant trends were found for pain or fatigue.
Conclusions:
- The plyometric intervention showed potential benefits for running performance and participation in children with GJH.
- The intervention was effective in reducing kinesiophobia in a majority of participants.
- Further research with larger sample sizes is warranted to confirm these findings.
