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Updated: Feb 28, 2026

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
Decline of Hip Joint Movement Relates to Overestimation of Maximum Forward Reach in Elderly Persons
Atsushi Okimoto1,2, Minoru Toriyama1,3, Masataka Deie1,4
1a Graduate School of Health Sciences , Hiroshima University , Hiroshima , Japan.
Abstract:
The authors aimed to characterize age-related changes in the performance of maximum reach and identify kinematic parameters that explain the age-related discrepancy between perceived and actual maximum reach distance. Maximum reach was evaluated in 22 younger women (21.3 years old) and 20 older women (81.2 years old). Both the perceived and actual maximum forward reach and forward excursion of the center of pressure was shorter in older women. Older women also overestimated their maximum reach distance to a greater extent. Decline of movement at the hip joint specifically correlated with both the maximum distance and the overestimation. Based on these results, decline of hip control may be a primary factor for the age-related retardation of perceived and actual maximum reach.
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