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Improvements in Phase Angle Are Related With Muscle Quality Index After Resistance Training in Older Women
- Source :
- Journal of Aging and Physical Activity. 27:515-520
- Publication Year :
- 2019
- Publisher :
- Human Kinetics, 2019.
-
Abstract
- 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.
- Subjects :
- 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
Subjects
Details
- ISSN :
- 1543267X and 10638652
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Journal of Aging and Physical Activity
- Accession number :
- edsair.doi.dedup.....585768a618aa2eb5b43b80cf2c745192