Ribeiro A S, Avelar A, Dos Santos L, Silva A M, Gobbo L A, Schoenfeld B J, Sardinha L B, Cyrino E S
Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil.
Department of Physical Education, Center of Health Sciences, Maringá State University, Maringá, Brazil.
Int J Sports Med. 2017 Jan;38(1):35-40. doi: 10.1055/s-0042-102788. Epub 2016 Oct 28.
The main purpose of the present study was to investigate the effect of a hypertrophy-type resistance training protocol on phase angle, an indicator of cellular integrity, in young adult men and women. 28 men (22.2±4.3 years, 67.8±9.0 kg and 174.2±6.8 cm) and 31 women (23.2±4.1 years, 58.7±12.1 kg and 162.7±6.4 cm) underwent a progressive RT for 16 weeks (2 phases, 8 weeks each), 3 times per week, consisting of 10 to 12 whole body exercises with 3 sets of 8-12 repetitions maximum. Phase angle, resistance, reactance and total body water (intra and extracellular water compartments) were assessed by bioimpedance spectroscopy (Xitron 4200 Bioimpedance Spectrum Analyzer). Total body water, intracellular water and phase angle increased significantly (<0.05) in men (7.8, 8.3, and 4.3%, respectively) and women (7.6, 11.7, and 5.8% respectively), with no significant difference between sexes (>0.05). Bioimpedance resistance decreased (<0.05) similarly in both sex (men=-4.8%, women=-3.8%). The results suggest that regardless of sex, progressive RT induces an increase in phase angle and a rise in cellular hydration.
本研究的主要目的是调查一种肥大型抗阻训练方案对年轻成年男性和女性的相位角（细胞完整性指标）的影响。28名男性（22.2±4.3岁，67.8±9.0千克，身高174.2±6.8厘米）和31名女性（23.2±4.1岁，58.7±12.1千克，身高162.7±6.4厘米）进行了为期16周的渐进式抗阻训练（2个阶段，每个阶段8周），每周3次，包括10至12项全身运动，每组进行8至12次重复，每组最多重复12次。通过生物电阻抗光谱法（Xitron 4200生物电阻抗光谱分析仪）评估相位角、电阻、电抗和全身水含量（细胞内和细胞外水室）。男性（分别为7.8%、8.3%和4.3%）和女性（分别为7.6%、11.7%和5.8%）的全身水含量、细胞内水含量和相位角均显著增加（<0.05），性别之间无显著差异（>0.05）。两性的生物电阻抗均有类似程度的下降（<0.05）（男性=-4.8%，女性=-3.8%）。结果表明，无论性别如何，渐进式抗阻训练都会导致相位角增加和细胞水合作用增强。
