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Lower extremity mechanics during landing after a volleyball block as a risk factor for anterior cruciate ligament injury
D. Zahradnik, D. Jandacka, J. Uchytil, R. Farana, J. Hamill,
Jazyk angličtina Země Anglie, Velká Británie
Typ dokumentu časopisecké články, práce podpořená grantem
NLK
ProQuest Central
od 2003-01-01 do Před 2 měsíci
Nursing & Allied Health Database (ProQuest)
od 2003-01-01 do Před 2 měsíci
Health & Medicine (ProQuest)
od 2003-01-01 do Před 2 měsíci
Health Management Database (ProQuest)
od 2003-01-01 do Před 2 měsíci
Public Health Database (ProQuest)
od 2003-01-01 do Před 2 měsíci
- MeSH
- biomechanika MeSH
- dolní končetina * MeSH
- dospělí MeSH
- kohortové studie MeSH
- lidé MeSH
- ligamentum cruciatum anterius MeSH
- mladý dospělý MeSH
- poranění předního zkříženého vazu MeSH
- postura těla * MeSH
- rány a poranění etiologie MeSH
- rizikové faktory MeSH
- volejbal * MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
OBJECTIVES: To compare lower extremity mechanics and energy absorption during two types of landing after a successful or unsuccessful block in volleyball and assess the risks of anterior cruciate ligament (ACL) injury. DESIGN: Cohort study. SUBJECTS: Fourteen elite male volleyball players (aged 24.5 ± 4.6 years; height 1.94 ± 0.06 m; mass 86.6 ± 7.6 kg). INTERVENTIONS: Subjects were required to land on force platforms using stick landing or step-back landing (with the right lower extremity stepping back away from the net) techniques after performing a standing block jump movement. MAIN OUTCOME MEASURES: Vertical ground reaction force (body weight); knee flexion (degrees); knee moments (Nm/kg); and hip, knee and ankle energy absorption (J/kg). RESULTS: The right lower extremity showed a greater first peak of vertical ground reaction force, a greater valgus moment, lower energy absorption by the knee, and higher energy absorption by the hip and ankle joints during step-back landing. CONCLUSIONS: The lower extremity may be exposed to a greater risk of ACL injury when stepping back from the net during the initial impact phase after a step-back landing.
Biomechanics Laboratory University of Massachusetts Amherst MA USA
Human Motion Diagnostic Center University of Ostrava Varenska 40A 70200 Ostrava Czech Republic
Citace poskytuje Crossref.org
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- $a OBJECTIVES: To compare lower extremity mechanics and energy absorption during two types of landing after a successful or unsuccessful block in volleyball and assess the risks of anterior cruciate ligament (ACL) injury. DESIGN: Cohort study. SUBJECTS: Fourteen elite male volleyball players (aged 24.5 ± 4.6 years; height 1.94 ± 0.06 m; mass 86.6 ± 7.6 kg). INTERVENTIONS: Subjects were required to land on force platforms using stick landing or step-back landing (with the right lower extremity stepping back away from the net) techniques after performing a standing block jump movement. MAIN OUTCOME MEASURES: Vertical ground reaction force (body weight); knee flexion (degrees); knee moments (Nm/kg); and hip, knee and ankle energy absorption (J/kg). RESULTS: The right lower extremity showed a greater first peak of vertical ground reaction force, a greater valgus moment, lower energy absorption by the knee, and higher energy absorption by the hip and ankle joints during step-back landing. CONCLUSIONS: The lower extremity may be exposed to a greater risk of ACL injury when stepping back from the net during the initial impact phase after a step-back landing.
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