Objectives: To explore the relationship between lower extremity muscle strength and walking efficiency in chronic stroke patients, focusing on energy cost of walking (ECW), gait speed, and walking endurance.
Methods: This cross-sectional study was conducted from June 2022 to July 2023 at a rehabilitation center and included 78 chronic stroke patients (stroke ≥6 months, age ≥18 years, able to walk 10 meters). Patients with walking pain, atrial fibrillation, or on beta/calcium channel blockers were excluded. The ECW in this study was quantified using the Physiological Cost Index (PCI)
Results: ECW showed a strong negative correlation with walking endurance (r = -0.71) and a moderate negative correlation with comfortable gait speed (CGS) (r = -0.61), both statistically significant (p
Key words: Hemiplegia, activities, locomotor, difficulty walking, 6-minute walk test, muscle strength, oxygen consumption.
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