Use of a novel bluetooth-connected device to measure handgrip strength: A practical tool to help healthcare professionals identify adults at nutritional risk

Low muscle strength is strongly tied to poor nutrition status, and nutritional interventions are likewise linked to maintenance and restoration of muscle strength and functional status. Nutrition plays a vital role in muscle mass, strength, and function, and losses in muscle (strength, function, and mass) are associated with poor health outcomes and added costs for healthcare services. For this study of outpatients, the main objective was to identify those at risk for low muscle strength, as evidenced by low handgrip strength (HGS) measures with risk stratified by age and sex. This was a two-part study on HGS measures in adults attending outpatient clinics in India. In part one, we conducted HGS tests on dominant and non-dominant hands of patients who qualified for the study. For HGS measures, we used a validated tool, the SQUEGG device, a smart handgrip trainer, along with its companion Bluetooth-connected app, the Muscle Strength Assessment Tool (MSAT) app. In part two, we collected Healthcare Practitioners' (HCPs) feedback via a short digital survey on the use of the SQUEGG device + the MSAT app to do HGS risk screening as an indicator of needed nutritional intervention. Nearly a third of community-living adults in India exhibited low HGS among the 3036 sampled. At each age stratum, dominant-hand HGS in women was lower by 25%–35% compared to men. Among 353 HCPs, 293 (83%) provided insights via survey, and 85% of surveyed HCPs (n = 249) strongly agreed or agreed that the SQUEGG device + MSAT app helped them identify HGS issues among their patients, and 85% (n = 248) agreed or strongly agreed they would like to continue using the SQUEGG device + MSAT app to inform their practice. Nearly all surveyed HCPs (98%, n = 288) recommended an oral nutritional supplement (ONS) to their patients with identified low HGS. Our findings demonstrate that HCPs would like to continue use of the SQUEGG device + MSAT app as it helped them identify adult patients who had decreased HGS (about 30% of the study population), in turn identifying opportunities to use nutritional interventions such as ONS to address nutrition shortfalls and to restore functional status.