During walking , oxygen consumption ( ml O2/kg/min ) and heart rate ( beats/min ) increased with a higher walking speed and a more proximal amputation .
During walking , oxygen consumption ( ml O2/kg/min ) and heart rate ( beats/min ) increased with a higher walking speed and a more proximal amputation .
OBJECTIVE To systematic ally review the literature on the metabolic costs of activities of daily living ( ADL ) in persons with a lower limb amputation ( LLA ) .
A controlled clinical trial of a clinically-tuned powered ankle prosthesis in people with transtibial amputation
Objective : To determine whether there are changes in level walking performance for people using a powered ankle prosthesis that was tuned by an independent , manufacturer-certified prosthetist in accordance with device recommendations . Design : Intervention study with cross-over design . Setting : Laboratory . Participants : Convenience sample of 10 individuals with unilateral , transtibial amputation , and 10 age- and gender-matched control participants . Interventions : Powered ankle prosthesis ( BiOM T2 Ankle System ) . Main outcome metrics : Metabolic costs of walking , preferred walking speed . Results : There were no significant differences in oxygen consumption ( 2.9 % difference ; P = 0.606 , d = 0.26 ) , cost of transport ( ~1 % difference ; P = 0.652 , d = 0.23 ) , or preferred walking speed ( ~1 % difference ; P = 0.147 , d = 0.76 ) when using the powered ankle compared to unpowered prostheses . Secondary analyses of user characteristics revealed that participants who were classified as having the highest function ( K4 on Medicare ’s 5-point scale from K0 to K4 ) were significantly more likely to exhibit energy cost savings than those classified as having lower function ( K3 ; P = 0.014 , d = 2.36 ) . Conclusions : Participants did not demonstrate significant improvements in energetics or preferred speed when wearing a clinical ly tuned powered ankle prosthesis compared to their non-powered prostheses . Prescribers of powered devices should underst and that not all users will show an immediate reduction in energy expenditure
During walking , oxygen consumption ( ml O2/kg/min ) and heart rate ( beats/min ) increased with a higher walking speed and a more proximal amputation .
During walking , oxygen consumption ( ml O2/kg/min ) and heart rate ( beats/min ) increased with a higher walking speed and a more proximal amputation .
OBJECTIVE To systematic ally review the literature on the metabolic costs of activities of daily living ( ADL ) in persons with a lower limb amputation ( LLA ) .