Effects of high-resistance circuit training in an elderly population
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Author/sBlazevich, A.J.; Luque, A.J.; Romero Arenas, Salvador; Martínez Pascual, Miryam; Pérez Gómez, Jorge; [et al.]
Discipline/sActividad Física y Deporte
Subject/sCircuit weight training
The aim of this study was to determine the efficacy of a program of high-resistance circuit (HRC) training, and to compare the effects of HRC to traditional heavy strength (TS) training on strength, muscle size, body composition and measures of cardiovascular fitness in a healthy elderly population. Thirty-seven healthy men and women (61.6 ± 5.3 years) were randomly assigned to HRC (n = 16), TS (n = 14), or a control group (CG, n = 7). Training consisted of weight lifting twice a week for 12 weeks. Before and after the training, isokinetic peak torque in the upper and lower body, and body composition (dual X-ray absorptiometry) were determined. In addition, cardiovascular parameters were evaluated during an incremental treadmill test. Both HRC and TS groups showed significant increases in isokinetic strength (p < 0.001), and the increase was significantly greater in the experimental groups than in CG (p < 0.03). There were significant increases in lean mass (HRC, p < 0.001; TS, p = 0.0...