Monitoring sarcopenia with wearable devices: a systematic review protocol.

INTRODUCTION: Sarcopenia is a highly prevalent muscle dysfunction among older adults and is associated with adverse events. The periodic monitoring enables an early screening of patients at risk and control of the progression of muscle impairment. Wearable devices have been used as clinical support for sarcopenia detection. Therefore, this review aims to identify how wearable devices have been used to screen sarcopenia. METHODS AND ANALYSES: Searches will be conducted from August 2023 on PubMed, CINHAL, Embase, Web of Science and SciELO databases. We will include cross-sectional and/or baseline data from prospective studies reporting the use of wearable devices to investigate sarcopenia. Studies that discuss only the development of algorithms or applications for the assessment of sarcopenia or unavailable full texts will be excluded. The main reviewer will conduct the initial search and exclusion of duplicates, while two independent reviewers will select studies, extract data and assess the methodological quality using the Appraisal tool for Cross-sectional Studies. ETHICS AND DISSEMINATION: No previous ethical approval is required for this review. The findings of this review will be submitted to a scientific journal and disclosed at international scientific conferences. PROSPERO REGISTRATION NUMBER: CRD42022356040.

Possible association of early menopause with worse physical function: a systematic review.

IMPORTANCE: Menopause at younger ages is associated with a greater risk of adverse health outcomes such as osteoporosis, chronic diseases, and death. However, the association with physical function has not been well established. OBJECTIVE: Assess the association between timing of menopause and different measures of physical function. EVIDENCE REVIEW: Searches on the PubMed, Cochrane Library, SciELO, LILACS, and Web of Science databases were conducted. Observational studies on the association between age at menopause and measures of physical function were included, with no restriction for publication date or language. Methodological quality was assessed by the "Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies." FINDINGS: Four cross-sectional studies were included, totaling 13,846 participants. These investigated five measures of physical function: gait speed, grip strength, standing balance, chair stand, and self-reported functional limitations. Poor physical function was associated with premature (<40 y) or early menopause (<45 y) in all the studies, with significant results only for grip strength, gait speed, and functional limitation. Premature and early menopause were associated with weaker grip strength [between 2.58 kg (95% CI = 0.74 to 4.43) and 5.21 kg (2.18 to 8.25)], and lower gait speed [between 0.03 m/s (0.01 to 0.06) and 0.06 m/s (0.02 to 0.09)]. Menopause after the age of 50 is associated with less likelihood of functional limitation [OR between 0.52 (95% CI = 0.29 to 0.95) and 0.61 (0.40 to 0.95)] compared with premature and early menopause. Two measures of physical function (chair stand test and standing balance) were not significantly associated with age at menopause. CONCLUSION: Only four cross-sectional studies showed that earlier ages at menopause are associated with poor physical function (grip strength, gait speed, and self-reported functional limitations), but given the high heterogeneity of the studies, no consensus is possible. Longitudinal studies are needed to explore the association between age at menopause and different measures of physical function as well as the influence of different socioeconomic conditions between countries on functioning.