title: Hypertrophy-type Resistance Training Improves Phase Angle in Young Adult Men and Women.
abstract: 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 (P<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 (P>0.05). Bioimpedance resistance decreased (P<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.
authors: Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil.
authors: A S
authors: AS
authors: Ribeiro
authors: Department of Physical Education, Center of Health Sciences, Maringá State University, Maringá, Brazil.
authors: A
authors: A
authors: Avelar
authors: Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil.
authors: L
authors: L
authors: Dos Santos
authors: Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz-Quebrada, Portugal.
authors: A M
authors: AM
authors: Silva
authors: Department of Physical Education, São Paulo State University, Presidente Prudente, São Paulo, Brazil.
authors: L A
authors: LA
authors: Gobbo
authors: Exercise Science Department, CUNY Lehman College, Bronx, New York, USAl.
authors: B J
authors: BJ
authors: Schoenfeld
authors: Exercise and Health Laboratory, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz-Quebrada, Portugal.
authors: L B
authors: LB
authors: Sardinha
authors: Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, Brazil.
authors: E S
authors: ES
authors: Cyrino
mesh_terms: D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D001823:Body Composition; D001834:Body Water; D017097:Electric Impedance; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D006984:Hypertrophy; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology; D055070:Resistance Training; D055815:Young Adult