Muscle, functional and cognitive adaptations after flywheel resistance training in stroke patients : a pilot randomized controlled trial
Fernandez-Gonzalo, Rodrigo (Karolinska Institutet (Estocolm, Suècia). Department of Physiology and Pharmacology)
Fernandez-Gonzalo, Sol (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Turon, Marc (Centro de Investigación Biomédica en Red de Enfermedades Respiratorias)
Prieto, Cristina (Althaia Xarxa Assistencial Universitària de Manresa)
Tesch, Per A. (Karolinska Institutet (Estocolm, Suècia). Department of Physiology and Pharmacology)
García-Carreira, Maria del Carmen (Parc Taulí Hospital Universitari. Institut d'Investigació i Innovació Parc Taulí (I3PT))
Universitat Autònoma de Barcelona

Date:	2016
Abstract:	Resistance exercise (RE) improves neuromuscular function and physical performance after stroke. Yet, the effects of RE emphasizing eccentric (ECC; lengthening) actions on muscle hypertrophy and cognitive function in stroke patients are currently unknown. Thus, this study explored the effects of ECC-overload RE training on skeletal muscle size and function, and cognitive performance in individuals with stroke. Thirty-two individuals with chronic stroke (≥6 months post-stroke) were randomly assigned into a training group (TG; n = 16) performing ECC-overload flywheel RE of the more-affected lower limb (12 weeks, 2 times/week; 4 sets of 7 maximal closed-chain knee extensions; <2 min of contractile activity per session) or a control group (CG; n = 16), maintaining daily routines. Before and after the intervention, quadriceps femoris volume, maximal force and power for each leg were assessed, and functional and dual task performance, and cognitive functions were measured. Quadriceps femoris volume of the more-affected leg increased by 9. 4 % in TG. Muscle power of the more-affected, trained (48. 2 %), and the less-affected, untrained limb (28. 1 %) increased after training. TG showed enhanced balance (8. 9 %), gait performance (10. 6 %), dual-task performance, executive functions (working memory, verbal fluency tasks), attention, and speed of information processing. CG showed no changes. ECC-overload flywheel resistance exercise comprising 4 min of contractile activity per week offers a powerful aid to regain muscle mass and function, and functional performance in individuals with stroke. While the current intervention improved cognitive functions, the cause-effect relationship, if any, with the concomitant neuromuscular adaptations remains to be explored. Clinical Trials.
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Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Executive function ; Eccentric overload ; Muscle-brain interaction ; Muscle hypertrophy
Published in:	Journal of neuroengineering and rehabilitation, Vol. 13 (april 2016) , ISSN 1743-0003

DOI: 10.1186/s12984-016-0144-7
PMID: 27052303

11 p, 948.8 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Parc Taulí Research and Innovation Institute (I3PT
Articles > Research articles
Articles > Published articles