Use the Back button in your browser to see the other results of your search or to select another record.

Detailed Search Results

Effects of different concurrent resistance and aerobic training frequencies on muscle power and muscle quality in trained elderly men: a randomized clinical trial
Ferrari R, Fuchs SC, Kruel LFM, Cadore EL, Alberton CL, Pinto RS, Radaelli R, Schoenell M, Izquierdo M, Tanaka H, Umpierre D
Aging & Disease 2016 Dec;7(6):697-704
clinical trial
6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

Muscle power is a strong predictor of functional status in the elderly population and is required to perform different daily activities. To compare the effects of different weekly training frequencies on muscle power and muscle quality induced by concurrent training (resistance plus aerobic) in previously trained elderly men. Twenty-four trained elderly men (65 +/- 4 years), previously engaged in a regular concurrent training program, three times per week, for the previous five months, were randomly allocated to concurrent training programs in which training was performed either twice a week (2/week, n = 12) or three times per week (3/week, n = 12). The groups trained with an identical exercise intensity and volume per session for 10 weeks. Before and after the exercise training, we examined muscle power, as estimated by countermovement jump height; knee extensor isokinetic peak torque at 60 and 180 degrees/s; and muscle quality, a quotient between the one-repetition maximum of the knee extensors and the sum of quadriceps femoris muscle thickness determined by ultrasonography. Additionally, as secondary outcomes, blood pressure and reactive hyperemia were evaluated. Two-way ANOVA with repeated measures were used and statistical significance was set at alpha = 0.05. Muscular power (2/week 7%, and 3/week 10%) and muscle quality (2/week 15%, and 3/week 8%) improved with the concurrent exercise training (p < 0.001) but with no differences between groups. The isokinetic peak torque at 60 (2/week 4%, and 3/week 2%) and 180 degrees/s (2/week 7%, and 3/week 1%) increased in both groups (p = 0.036 and p = 0.014, respectively). There were no changes in blood pressure or reactive hyperemia with the concurrent training. Concurrent training performed twice a week promotes similar adaptations in muscular power and muscle quality when compared with the same program performed three times per week in previously trained elderly men.

Full text (sometimes free) may be available at these link(s):      help