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Age-related skeletal muscle changes may impact respiratory muscle function, and low muscle mass is associated with low pulmonary function in older adults. Stroke not only causes weakness in the muscles of the upper and lower limbs, but it can also affect the respiratory system. This study aimed to investigate the relationships between grip strength and pulmonary function and respiratory muscle strength in stroke patients over 50 years of age. Fifty-one patients (68.69±10.40 years) who had been clinically diagnosed with ischemic or hemorrhagic stroke were included in this study. We measured these patients' forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV 1 ), peak expiratory flow (PEF), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and hand grip strength. The data were analyzed using descriptive statistics and Pearson correlation analysis. Grip strength showed significant correlations with FVC ( r =0.686, P =0.000), FEV 1 ( r =0.607, P =0.000), PEF ( r =0.494, P =0.000), MIP ( r =0.239, P =0.091), and MEP ( r =0.348, P =0.012). This study demonstrated that grip strength is associated with pulmonary function and MEP in stroke patients over 50 years of age.

Correlation between grip strength and pulmonary function and respiratory muscle strength in stroke patients over 50 years of age