Functional resistance training can increase strength, knee torque ratio, and functional performance in elderly women.

Autor:	Lima AB; Human Performance Laboratory, Faculty of Physical Education and Physiotherapy, Federal University of Amazonas, Manaus, Brazil., de Souza Bezerra E; Human Performance Laboratory, Faculty of Physical Education and Physiotherapy, Federal University of Amazonas, Manaus, Brazil., da Rosa Orssatto LB; Biomechanics Laboratory, Sports Centre, Federal University of Santa Catarina, Santa Catarina, Brazil., de Paiva Vieira E; Human Performance Laboratory, Faculty of Physical Education and Physiotherapy, Federal University of Amazonas, Manaus, Brazil., Picanço LAA; Human Performance Laboratory, Faculty of Physical Education and Physiotherapy, Federal University of Amazonas, Manaus, Brazil., Dos Santos JOL; Human Performance Laboratory, Faculty of Physical Education and Physiotherapy, Federal University of Amazonas, Manaus, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of exercise rehabilitation [J Exerc Rehabil] 2018 Aug 24; Vol. 14 (4), pp. 654-659. Date of Electronic Publication: 2018 Aug 24 (Print Publication: 2018).
DOI:	10.12965/jer.1836250.125
Abstrakt:	Functional resistance training can increase strength, knee torque ratio, and functional performance in elderly women. The aim of the present study was to understand the effects of closed kinetic chain exercises with constant load on muscular strength, the knee torque conventional ratio (hamstring:quadriceps - H:Q), and functional capacity in the elderly. Nine untrained healthy elderly women participated in experimental resistance training. Ten-repetition maximum (10RM) for the deadlift, isokinetic maximum voluntary concentric contraction, and functional capacity were assessed before and after the 7-week resistance-training program. Magnitude based inference analysis was used to examine the differences in muscle strength and functional performance. Therefore, the smallest worthwhile change was calculated and 90% confidence intervals were also determined to characterize muscle strength and functional performance. The analysis demonstrated an increase in the deadlift and knee flexor torque (60o/sec) after the experimental intervention. Furthermore, stair ascent, knee extensor torque (120o/sec), knee flexor torque (120o/sec), and knee ratio (60o/sec) also presented a positive effect in the same training period. Conversely, knee extensor torque (60o/sec), and knee ratio (120o/sec) did not show conclusive responses. In conclusion, resistance training with functional closed kinetic chain exercises and constant volume load (i.e., 65% of 1-repetition maximum) can increase deadlift 10RM, isokinetic concentric torque, the conventional H:Q ratio, and stair ascent performance in elderly women. Competing Interests: CONFLICT OF INTEREST No potential conflict of interest relevant to this article was reported.
Databáze:	MEDLINE
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