Differences in strength, leg lean mass,  and lifestyle factors between premenopausal and perimenopausal women. (26th July 2022)

• Record Type: Journal Article
• Authors: Cabre, Hannah E.; Gould, Lacey M.; Gordon, Amanda N.; Giuliani‐Dewig, Hayden K.; Moore, Sam R.; Ryan, Eric D.; Smith‐Ryan, Abbie E.
• Is Part Of: Clinical physiology and functional imaging. Volume 42:Number 6(2022)
• Page Start: 460
• Page End: 464
• Publication Date: 2022-07-26
• Subjects: aging -- female physiology -- lifestyle factors -- menopause -- peak force -- physical activity; Physiology, Pathological -- Periodicals; Diagnostic imaging -- Periodicals; 612
• DOI: 10.1111/cpf.12771
• Languages: English
• ISSNs: 1475-0961

Abstract

Abstract: 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.