Determining concentric and eccentric force-velocity profiles during squatting.
Assessment
In vivo
Isovelocity
Multi-joint
Journal
European journal of applied physiology
ISSN: 1439-6327
Titre abrégé: Eur J Appl Physiol
Pays: Germany
ID NLM: 100954790
Informations de publication
Date de publication:
Mar 2022
Mar 2022
Historique:
received:
07
04
2021
accepted:
12
12
2021
pubmed:
18
1
2022
medline:
15
3
2022
entrez:
17
1
2022
Statut:
ppublish
Résumé
The force-velocity relationship of muscular contraction has been extensively studied. However, previous research has focussed either on isolated muscle or single-joint movements, whereas human movement consists of multi-joint movements (e.g. squatting). Therefore, the purpose of this study was to investigate the force-velocity relationship of isovelocity squatting. Fifteen male participants (24 ± 2 years, 79.8 ± 9.1 kg, 177.5 ± 6 cm) performed isovelocity squats on a novel motorised isovelocity device (Kineo Training System) at three concentric (0.25, 0.5, and 0.75 m s The group mean squat force-velocity profile conformed to the typical in vivo profile, with peak vertical ground reaction forces during eccentric squatting being 9.5 ± 19% greater than isometric (P = 0.037), and occurring between - 0.5 and - 0.75 m s These finding suggest that variability exists between participants in the ability to generate maximum eccentric forces during squatting, and the magnitude of eccentric increase above isometric cannot be predicted solely based on a concentric assessment. Therefore, an assessment of eccentric capabilities may be required prior to prescribing eccentric-specific resistance training.
Identifiants
pubmed: 35038023
doi: 10.1007/s00421-021-04875-2
pii: 10.1007/s00421-021-04875-2
pmc: PMC8854263
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
769-779Informations de copyright
© 2022. The Author(s).
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