Relative handgrip strength as a vitality measure in US stroke survivors

PurposeStroke is a leading cause of long-term disability in the US, yet a feasible assessment measure with predictive value for components of the International Classification of Functioning, Disability, and Health (ICF) Core Set for Stroke is lacking. The purpose of the present study was to explore the predictive value of potential assessment measures on factors within each ICF component in stroke survivors.Materials and MethodsDemographic, anthropometric, blood-based biomarker, physical functioning, and Global Physical Activity Questionnaire data were collected on stroke survivors in the 2011-2018 NHANES cycles. Potential predictors (handgrip strength relative to weight, age, sex, race, education level, marital status, poverty ratio, stroke chronicity) of physical function, activities of daily living (ADLs), participation in social activities, metabolic syndrome, and meeting physical activity recommendations were evaluated using weighted linear and ordinal logistic regression.ResultsRelative handgrip strength was a significant predictor of physical function, difficulty participating in ADLs and social activities, and odds of meeting physical activity recommendations. As relative handgrip strength increased, these factors improved among stroke survivors.ConclusionsTo decrease disability rates and optimize function among stroke survivors, the use of assessment measures like relative handgrip strength that may predict multiple ICF components is warranted. Handgrip strength relative to weight may be a significant predictor of multiple components of the International Classification of Functioning, Disability, and Health (ICF) Core Set for Stroke, including physical function, difficulty completing activities of daily living, difficulty participating in social activities, and the odds of meeting physical activity recommendations.Environmental and personal factors, such as income and education, may influence outcomes; thus, education and appropriate resources may need to be included as an aspect of stroke rehabilitation.The heterogenous and pervasive effects of chronic stroke highlight the need to identify outcome measures, like relative handgrip strength, that can influence multiple domains of stroke recovery.