Article

The purpose of this research was to investigate rates of residual-limb fluid
volume change within one day for people with transtibial limb loss. Rates of
fluid volume change during 30 min test sessions of sitting, standing, and walking
activities were measured twice a day, once in the morning and once in the
afternoon, on 12 regular prosthesis users with the use of bioimpedance analysis.
Between test sessions, all subjects consumed food and drink, and subject activity
ranged from low to high. The rate of fluid volume change within sessions ranged
from -8.5 to 5.9 %/h (median: -2.2 %/h). The rate of fluid volume change between
sessions ranged from -2.7 to 0.9 %/h (median: -1.0 %/h). The between-session rate
of fluid volume change correlated highly with afternoon within-session rates of
change (r = 0.9) but was not well correlated with morning within-session rates of
change (r = 0.8). Subjects with peripheral arterial complications showed greater
fluid volume loss rates during test sessions than between sessions. Rate of fluid
volume change may be affected by sitting, standing, and walking activities;
presence of peripheral arterial complications; being female; time since
amputation; and wearing the socket without doffing for extended periods.

Langue : ANGLAIS