Improvements in Phase Angle Are Related With Muscle Quality Index After Resistance Training in Older Women
| Autor: | Melissa Antunes, Crisieli M. Tomeleri, Hellen C G Nabuco, Alex S. Ribeiro, João Pedro Nunes, Matheus Amarante do Nascimento, Edilson Serpeloni Cyrino, Letícia T. Cyrino, Leandro dos Santos, Brad J. Schoenfeld, Paolo M. Cunha, Analiza M. Silva |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Index (economics) Strength training Physical Therapy Sports Therapy and Rehabilitation Muscle hypertrophy 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Quality (physics) medicine Humans Longitudinal Studies Muscle Strength 030212 general & internal medicine Muscle Skeletal Aged Aged 80 and over business.industry Rehabilitation Phase angle Resistance training Resistance Training 030229 sport sciences Body Composition Female Geriatrics and Gerontology business Gerontology Bioelectrical impedance analysis |
| Zdroj: | Journal of Aging and Physical Activity. 27:515-520 |
| ISSN: | 1543-267X 1063-8652 |
| DOI: | 10.1123/japa.2018-0259 |
| Popis: | The aim of this study was to analyze the association between muscle quality index (MQI) and phase angle (PhA) after a program of progressive resistance training (RT) in older women. Sixty-six older women with previous RT experience (68.8 ± 4.6 years, 156.6 ± 5.3 cm, 66.0 ± 13.0 kg, and 26.7 ± 4.6 kg/m2) underwent 12 weeks of RT (3 ×/week, eight exercises, and 10–15 repetition maximum). Anthropometry, muscular strength (one-repetition maximum tests), and body composition (dual-energy X-ray absorptiometry and spectral bioimpedance) were measured pre- and posttraining. There were observed significant increases for PhA, MQI, muscular strength, muscle mass, and reactance, whereas no significant changes in body fat and resistance were found. A significant correlation was observed between the RT-induced relative changes in PhA and MQI (r = .620). We conclude that improvements in MQI induced by RT are associated with increases in PhA. Therefore, PhA may be a valid tool to track changes in MQI after 12 weeks of RT in older women. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|