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Effects of Flywheel Training With Eccentric Overload on Standing Balance, Mobility, Physical Function, Muscle Thickness, and Muscle Quality in Older Adults.
Hill, Mathew W; Roberts, Matthew; Price, Michael J; Kay, Anthony D.
Afiliação
  • Hill MW; Center for Sport, Exercise and Life Sciences, School of Life Sciences, Coventry University, Warwickshire, United Kingdom; and.
  • Roberts M; Center for Sport, Exercise and Life Sciences, School of Life Sciences, Coventry University, Warwickshire, United Kingdom; and.
  • Price MJ; Center for Sport, Exercise and Life Sciences, School of Life Sciences, Coventry University, Warwickshire, United Kingdom; and.
  • Kay AD; Center for Physical Activity and Life Sciences, Faculty of Art, Science and Technology, University of Northampton, Northamptonshire, United Kingdom.
J Strength Cond Res ; 36(11): 3190-3199, 2022 Nov 01.
Article em En | MEDLINE | ID: mdl-34127610
ABSTRACT
ABSTRACT Hill, MW, Roberts, M, Price, MJ, and Kay, AD. Effects of flywheel training with eccentric overload on standing balance, mobility, physical function, muscle thickness, and muscle quality in older adults. J Strength Cond Res 36(11) 3190-3199, 2022-This study investigated the effects of a 6-week eccentric overload flywheel training program on vastus lateralis (VL) and gastrocnemius medialis (GM) muscle thickness and muscle quality (echo intensity), mobility (Timed Up and Go [TUG]), physical function (sit-to-stand), and balance (postural sway) performance. Nineteen subjects were assigned to either a flywheel training group ( n = 11, age = 66.4 ± 5.2 years) or a control group ( n = 8, age = 65.9 ± 3.8 years). The flywheel group underwent twice weekly squat and calf raise exercises for 6 weeks with outcome measures assessed before and after training or a time-matched control period. Throughout the training, subjects were instructed to contract as fast as possible with maximal effort during the concentric phase and to maximally resist the pull during the eccentric phase. The alpha value was a priori set at p < 0.05. Statistically significant ( p < 0.05) mean ( SD ) increases in right and left VL (7.6-9.6 ± 7.7-9.8%) and GM (8.6-8.7 ± 6.4-11.5%) muscle thickness and a reduction in VL (10.2-11.3 ± 5.9-7.9%) and GM (11.7-11.9 ± 5.6-9.6%) echo intensity were accompanied by faster TUG time (13.7 ± 7.0%) improved sit-to-stand performance (17.8-23.5 ± 7.6 - 13.4%) and reduced postural sway (29.7-42.3 ± 13.2-24.2%) after 6 weeks of flywheel training. There were no differences in any outcome measures between the treatment and control group at baseline ( p > 0.05). Overall, we observed substantial gains in muscle thickness and muscle quality, in addition to enhanced physical function, balance, and mobility performance among older adults after flywheel training, which may have important implications for preserving the functional capacity of older adults.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Treinamento Resistido Limite: Aged / Humans / Middle aged Idioma: En Revista: J Strength Cond Res Assunto da revista: FISIOLOGIA Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Treinamento Resistido Limite: Aged / Humans / Middle aged Idioma: En Revista: J Strength Cond Res Assunto da revista: FISIOLOGIA Ano de publicação: 2022 Tipo de documento: Article