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Preliminary investigation of residual-limb fluid volume changes within one day

Preliminary investigation of residual-limb fluid volume changes within one day. Joan E. Sanders, PhD; Katheryn J. Allyn, CPO; Daniel S. Harrison, BSEE; Timothy R. Myers, MME; Marcia A. Ciol, PhD; Elaine C. Tsai, MD, MPH. Aim

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Preliminary investigation of residual-limb fluid volume changes within one day

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  1. Preliminary investigation of residual-limb fluid volume changes within one day Joan E. Sanders, PhD; Katheryn J. Allyn, CPO; Daniel S. Harrison, BSEE; Timothy R. Myers, MME; Marcia A. Ciol, PhD; Elaine C. Tsai, MD, MPH

  2. Aim • Investigate rates of residual-limb fluid volume change within 1 d for people with transtibial limb loss. • Relevance • Large changes in residual-limb fluid volume may impact quality of prosthesis fit and prosthesis user’s skin health.

  3. Method • Using bioimpedance analysis, we measured residual limb volume on 12 regular prosthesis users: • 30 min test sessions of sitting, standing, and walking in both morning and afternoon. Electrode configuration for bioimpedance analysis.

  4. Results • Within sessions: • Rate of fluid volume change: –8.5 to 5.9 %/h. • Between sessions: • Rate of fluid volume change: –2.7 to 0.9 %/h. • Correlated highly with afternoon within-session rate. • Not well correlated with morning within-session rate. • Subjects with peripheral arterial complications: • Greater fluid volume loss rates within sessions than between.

  5. Conclusion • Rates of fluid volume change affected by: • Sitting, standing, and walking activities. • Presence of peripheral arterial complications. • Being female. • Time since amputation. • Wearing of prosthetic socket without doffing for extended periods.

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