Trop T, hand grip strength and waist circumference as markers of sarcopenic obesity in postmenopausal women: An analytical cross-sectional study

Abstract

Objectives: Sarcopenic obesity is defined as age-associated histological changes and adiposity in muscles that impair muscle function. Asian Working Group for Sarcopenia suggested hand grip strength (HGS) and gait speed for screening sarcopenia. Troponin is a putative biomarker of muscle health. The study aims to evaluate Trop T, HGS, and waist circumference (WC) as markers of sarcopenic obesity in postmenopausal women. Materials and Methods: An analytical cross-sectional study was conducted in healthy postmenopausal women. Anthropometric measurements, HGS, and gait speed were documented. Postmenopausal women were identified as sarcopenic obesity with the following criteria: (a) The cut-points for weak handgrip strength (kg) for women as <18 in Asians (b) WC ≥85 cm in women. Total cholesterol, triglycerides, high-density lipoprotein (HDLc), low-density lipoprotein (LDLc), and high sensitive troponin T levels were estimated in the automated biochemistry analyser. Results: About 33% sarcopenic obesity was observed in postmenopausal women aged 56 to 60 years. WC (93 cm) and body mass index (29.64) were increased in sarcopenic obese. Decreased HGS (9.44 kg) and increased gait speed (13.62 s) were observed in sarcopenic obese as compared to non-sarcopenic obese women. Increased troponin T (0.068 ng/mL), small dense LDLc (mmol/L), LDLc, non-HDLc, and decreased HDLc were observed in sarcopenic obese postmenopausal women. Receiver’s operating characteristic curve: sensitivity of waist circumference, HGS, gait, and troponin T were 97% (area under the curve [AUC] 0.76), 83% (AUC 0.84), 82% (AUC 0.76) and 67% (AUC 0.77), respectively. Conclusion: Measurement of waist circumference, hand grip strength, and gait are diagnostic tools of sarcopenic obesity that divulges the quality of postmenopausal life.