Article ID: 26-E00018
Objectives: Understanding how respiratory sarcopenia affects force, velocity, and muscle power is crucial for comprehending exercise impairments associated with respiratory sarcopenia and for developing effective intervention strategies. This study aimed to examine the relationships among force, velocity, muscle power, and probable respiratory sarcopenia in community-dwelling older adults. Methods: Eighty community-dwelling older adults aged 60 years or older were included. The primary outcomes measured were force, velocity, and muscle power. Force, velocity, and muscle power were calculated using a five-times sit-to-stand test based on a previous study. Additional outcomes assessed included probable respiratory sarcopenia, skeletal muscle functions, and basic and medical information. Probable respiratory sarcopenia was defined as low respiratory muscle strength combined with a reduced skeletal muscle mass index. Hierarchical multiple regression analysis was performed to examine the factors associated with force, velocity, and muscle power as dependent variables. Independent variables were probable respiratory sarcopenia, skeletal muscle functions, and basic medical information. Results: Hierarchical multiple regression analysis revealed that probable respiratory sarcopenia (P <0.05) was a significant predictor of force, velocity, and muscle power. Conclusions: Probable respiratory sarcopenia was significantly associated with indicators of skeletal muscle functions, including force, velocity, and muscle power. These findings suggest that probable respiratory sarcopenia may progress as part of a multiple low in skeletal muscle functions, which is an important insight for future evaluation methods and intervention strategies.
