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A 12-Week Randomized Double-Blind Placebo-Controlled Clinical Trial, Evaluating the Effect of Supplementation with a Spinach Extract on Skeletal Muscle Fitness in Adults Older Than 50 Years of Age

Identificadores del recurso

2072-6643

http://hdl.handle.net/10835/13106

10.3390/nu13124373

Procedencia

(Repositorio Institucional de la Universidad de Almería)

Ficha

Título:: A 12-Week Randomized Double-Blind Placebo-Controlled Clinical Trial, Evaluating the Effect of Supplementation with a Spinach Extract on Skeletal Muscle Fitness in Adults Older Than 50 Years of Age
Tema:: natural spinach extract; healthy aging; muscle health; randomized trial; strength training
Descrición:: The aim of a 12-week randomized double-blind placebo-controlled study was to assess the effect of daily supplementation with a natural extract of Spinacia oleracea L. (4 × 500 mg capsules/day; total 2 g per day) combined with a moderate-intensity training program (1 h session/3 times a week) on skeletal muscle fitness in adults over 50 years of age. Muscle strength assessed by isokinetic and isometric dynamometry improved significantly in the experimental (n = 23) and the placebo (n = 22) groups, but the magnitude of improvement was higher in the experimental group, with between-group differences in almost all variables, including isokinetic at 60° s−1 in knee extension, peak torque (p < 0.007); total work per repetition maximum (p < 0.009); isokinetic at 180°s−1 in knee extension, peak torque (p < 0.002); total work (p < 0.007); total work per repetition maximum (p < 0.005); average power (p < 0.027); isometric in knee extension, peak torque (p < 0.005); and average peak torque (p < 0.002). Similar findings were observed for muscle quality. Changes in quality of life (SF-36) were not found, except for improvements in the role physical (p < 0.023) and role emotional (p < 0.001) domains, likely as a result of the physical training sessions. A nutritional survey did not revealed changes in dietary habits. No adverse events were recorded. In subjects over 50 years of age, moderate-intensity strength training combined with daily supplementation for 12 weeks with a natural extract of Spinacia oleracea L. improved muscle-related variables and muscle quality. Maintaining muscle health is a key component of healthy aging.
Idioma:
Relación:: https://www.mdpi.com/2072-6643/13/12/4373
Autor/Productor:: Pérez-Piñero, Silvia; Ávila-Gandía, Vicente; Rubio Arias, Jacobo Ángel; Muñoz-Carrillo, Juan Carlos; Losada-Zafrilla, Pilar; López-Román, Francisco Javier
Editor:: MDPI
Dereitos:: Attribution-NonCommercial-NoDerivatives 4.0 Internacional; http://creativecommons.org/licenses/by-nc-nd/4.0/; info:eu-repo/semantics/openAccess
Data:: 2021-12-16T18:37:54Z; 2021-12-06
Tipo de recurso:: info:eu-repo/semantics/article

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