Influence of the Strap Rewind Height During a Conical Pulley Exercise.
eccentric overload
flywheel
power output
strength
Journal
Journal of human kinetics
ISSN: 1640-5544
Titre abrégé: J Hum Kinet
Pays: Poland
ID NLM: 101513031
Informations de publication
Date de publication:
Aug 2020
Aug 2020
Historique:
entrez:
14
12
2020
pubmed:
15
12
2020
medline:
15
12
2020
Statut:
epublish
Résumé
The use of flywheel devices has increased in popularity within resistance training programs. However, little is known about modifiable variables which may affect power output responses, as the rope length and the height level used in a conical pulley device. The aim of this study was to assess the influence of using three different rope lengths (1.5, 2.5 and 3.5 meters) and four different height levels (L1, L2, L3 and L4) on concentric peak power (PPconc), eccentric peak power (PPecc) and eccentric overload (eccentric/concentric PP ratio; EO) during conical pulley exercises (i.e. seated and stand-up row). A total of 29 recreationally trained subjects (25.3±7.1 years; 1.74±0.06 m; 72.5±8.3 kg) took part in the study. Testing sessions consisted of 1 set of 10 repetitions under each condition; experiment 1: seated row exercise using the three different rope lengths; experiment 2: stand-up row exercise using four different height levels of the conical pulley. Results from experiment 1 did not show differences between rope lengths, although a trend for greater PPecc (ES=0.36-0.38) and EO (ES=0.40-0.41) was found when using longer rope lengths (2.5 and 3.5). Experiment 2 showed significant increases in both PPconc and PPecc as the height level used was closer to the cone base (L4). In contrast, EO values were significantly greater when using upper height levels (L1). These results suggest that the height level used during conical pulley exercises highly influences power output responses. Therefore, this variable should be carefully managed depending on the training goal (e.g. power vs hypertrophy).
Identifiants
pubmed: 33312280
doi: 10.2478/hukin-2020-0018
pii: hukin-2020-0018
pmc: PMC7706643
doi:
Types de publication
Journal Article
Langues
eng
Pagination
109-118Informations de copyright
© 2020 Rafael Sabido, Jose Luis Hernández-Davó, Adrián García-Valverde, Pablo Marco, Pablo Asencio, published by Sciendo.
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