Passive prosthesis control strategy for downhill ambulation

Figures & data

Figure 1. (A) Simplified state machine managing the comportment of the prosthesis. (B) Asymptomatic subject standing on the prosthesis using the orthosis.

Table 1. Cases considered in this study.

Cases	Acronym
No swing release	nSR
Swing release SR1	SR1
Swing release SR2 (${th}_2=0.25{th}_1$)	SR2_25
Swing release SR2 (${th}_2=0.55{th}_1$)	SR2_55
Swing release SR2 (${th}_2=0.85{th}_1$)	SR2_85

Figure 2. Maximum prosthetic knee flexion angle (top), self-selected walking speed (middle) and minimum contralateral knee power during loading response (bottom). Each cross stands for a gait cycle. The dots represent the average for all the cycles.