Knee flexor muscle fatigue during repeated Nordic hamstring exercise.
Journal
The Journal of sports medicine and physical fitness
ISSN: 1827-1928
Titre abrégé: J Sports Med Phys Fitness
Pays: Italy
ID NLM: 0376337
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
medline:
26
9
2023
pubmed:
6
7
2023
entrez:
6
7
2023
Statut:
ppublish
Résumé
Nordic hamstring exercise is an effective method for preventing hamstring strain injury. In this study, we investigated the response of knee flexors regarding increased muscle force and fatigue when the Nordic hamstring exercise was performed repeatedly to further understand how it can prevent hamstring strain injury. The Nordic hamstring exercise was performed 10 times by 53 athletes; knee flexor peak tensile force and the respective flexion angle were compared at different phases during this sequence: phase 1, 1 Knee flexor peak force was most significant in phase 2 and decreased during subsequent phases. The knee angle at which peak force was exerted was greatest in phase 1 and decreased thereafter. When we compared the knee flexor peak force in different flexion angle zones, increased muscle force in the slight flexion zone was greater than increased muscle force in the deep flexion zone in phases 2 and 3. Enhancement of the knee flexor force, especially in the slight flexion zone occurs after only a few repetitions of the Nordic hamstring exercise.
Sections du résumé
BACKGROUND
BACKGROUND
Nordic hamstring exercise is an effective method for preventing hamstring strain injury. In this study, we investigated the response of knee flexors regarding increased muscle force and fatigue when the Nordic hamstring exercise was performed repeatedly to further understand how it can prevent hamstring strain injury.
METHODS
METHODS
The Nordic hamstring exercise was performed 10 times by 53 athletes; knee flexor peak tensile force and the respective flexion angle were compared at different phases during this sequence: phase 1, 1
RESULTS
RESULTS
Knee flexor peak force was most significant in phase 2 and decreased during subsequent phases. The knee angle at which peak force was exerted was greatest in phase 1 and decreased thereafter. When we compared the knee flexor peak force in different flexion angle zones, increased muscle force in the slight flexion zone was greater than increased muscle force in the deep flexion zone in phases 2 and 3.
CONCLUSIONS
CONCLUSIONS
Enhancement of the knee flexor force, especially in the slight flexion zone occurs after only a few repetitions of the Nordic hamstring exercise.
Identifiants
pubmed: 37410445
pii: S0022-4707.23.14896-1
doi: 10.23736/S0022-4707.23.14896-1
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM