Differences in strength, leg lean mass, and lifestyle factors between premenopausal and perimenopausal women

被引:2
作者
Cabre, Hannah E. [1 ,2 ]
Gould, Lacey M. [1 ]
Gordon, Amanda N. [1 ]
Giuliani-Dewig, Hayden K. [3 ]
Moore, Sam R. [1 ,2 ]
Ryan, Eric D. [2 ,4 ]
Smith-Ryan, Abbie E. [1 ,2 ,5 ]
机构
[1] Univ N Carolina, Appl Physiol Lab, Dept Exercise & Sport Sci, Chapel Hill, NC 27599 USA
[2] Univ N Carolina, Human Movement Sci Curriculum, Dept Allied Hlth Sci, Chapel Hill, NC 27599 USA
[3] West Virginia Univ, Rockefeller Neurosci Inst, Morgantown, WV 26506 USA
[4] Univ N Carolina, Neuromuscular Assessment Lab, Dept Exercise & Sport Sci, Chapel Hill, NC 27599 USA
[5] Univ N Carolina, Dept Nutr, Gillings Sch Publ Hlth, Chapel Hill, NC 27599 USA
关键词
aging; female physiology; lifestyle factors; menopause; peak force; physical activity; MUSCLE STRENGTH; MENOPAUSE; AGE;
D O I
10.1111/cpf.12771
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Background Menopausal changes coupled with age-related reductions in muscle strength can impact functionality. Aim To evaluate the differences in muscle strength, dominant leg lean mass (DLMleg), relative protein intake (r_PRO) and physical activity (PA) between premenopausal (PRE) and perimenopausal (PERI) women. Methods Twenty-four PRE- (age = 39.8 +/- 3.3 years; BMI: 25.3 +/- 5.0 kg/m(2)) and 24 PERI-women (age = 50.0 +/- 3.3 years; BMI: 26.5 +/- 5.4 kg/m(2)) participated in leg extensor isometric peak force (PF), DLMleg, r_PRO and PA. Independent samples t-tests and one-way analyses of covariance covaried for age and DLMleg were used to compare groups. Results The PRE group had significantly higher PF (mean difference +/- standard error: 57.8 +/- 28.0 N; p = 0.045) and DLMleg (0.7 +/- 0.3 kg; p = 0.031) when compared to the PERI group. There were no significant differences in r_PRO, or PA between groups (p = 0.173-0.423). When covaried for age and DLMleg, there was no significant difference in PF (p = 0.982 and 0.405, respectively). Conclusions Age and DLMleg may be important contributors to menopause-phase related differences in strength.
引用
收藏
页码:460 / 464
页数:5
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