Specificity of functional mobility measures in older adults after hip fracture: a pilot study.

Abstract

To determine the relationships between measures of functional mobility (Timed Up and Go [TUG], Self-Paced Walking [SPW], Berg Balance Scale [BBS]) and global functional status (FIM trade mark instrument), the motor component of the FIM instrument (motor FIM), and the mobility/locomotor-specific FIM component (ML-FIM) in older patients admitted to an inpatient rehabilitation program after hip fracture. The TUG, SPW, BBS, and FIM instrument were administered within 24 hr after admission and before discharge to 20 patients undergoing inpatient rehabilitation after a hip fracture. Significant correlations at admission were found between FIM and TUG scores (r = -0.47; p < 0.05), TUG and motor FIM (r = -0.45; p < 0.05), TUG and ML-FIM (r = -0.58; p < 0.01), FIM and BBS (r = 0.60; p < 0.01), motor FIM and BBS (r = 0.50; p < 0.05), and ML-FIM and BBS (r = 0.45; p < 0.05). At discharge, a significant correlation was found between the motor FIM and SPW (r = -0.49; p < 0.05). Change scores between both the motor FIM and ML-FIM and TUG scores were significantly correlated (r = -0.47, p < 0.05, r = -0.50, p < 0.05, respectively). The FIM instrument, motor FIM, and ML-FIM may not be specific measures of functional mobility in patients with hip fracture.