Traditional and pyramidal resistance training systems improve muscle quality and metabolic biomarkers in older women: A randomized crossover study

作者：Ribeiro Alex S^*; Schoenfeld Brad J; Souza Mariana F; Tomeleri Crisieli M; Venturini Danielle; Barbosa Decio S; Cyrino Edilson S

来源：Experimental Gerontology, 2016, 79: 8-15.

DOI：10.1016/j.exger.2016.03.007

• Aging
• C-reactive protein
• Lipoproteins
• Muscle
• Strength training

The purpose of this study was to compare the effect of RT performed in a pyramid (PR) and traditional (TD) straight set training system on muscle quality and metabolic biomarkers in older women. Twenty-five physically independent olderwomen (67.6 +/- 5.1 years, 65.9 +/- 11.1 kg, 154.7 +/- 5.8 cm) performed a RT program in TD and PR training systems in a balanced crossover design. Measurements of muscle quality, serum levels of C-reactive protein (CRP), glucose (GLU), total cholesterol, high-density lipoprotein (HDL-C), low-density lipoprotein (LDL-C), and triglycerides (TG) were obtained at different moments. The TD program consisted of 3 sets of 8-12 repetitions maximum (RM) with a constant weight for the 3 sets, whereas the PR training consisted of 3 sets of 12/10/8 RM with incremental weight for each set. The training was performed in 2 phases of 8 weeks each, with a 12-week washout period between phases. Significant (P < 0.05) improvements were observed in both groups for muscle quality (TD = +8.6% vs. PR = +6.8%), GLU (TD = -4.5% vs. PR = -1.9%), TG (TD = -18.0% vs. PR = -11.7%), HDL-C (TD = +10.6 vs. PR = +7.8%), LDL-C (TD = -23.3% vs. PR = -21.0%), and CRP (TD = -19.4% vs. PR = -14.3%) with no differences between training systems. These results suggest that RT improves muscle quality and metabolic biomarkers of older women independently of the training system.

• 出版日期2016-6-15