Name
Abstract | ||
|---|---|---|
Passive-elastic foot prostheses cannot produce net work. Consequently, passive-elastic foot prostheses are limited in their ability to enable a biologically-realistic gait pattern in transtibial amputees. This shortcoming results in difficulties in balance and walking and leads to high levels of oxygen consumption during locomotion. A powered prosthesis has the potential for overcoming these problems and allowing transtibial amputees to achieve a biologically-realistic gait pattern. In this study, we compared the effects of the Ceterus by Össur, a traditional passive-elastic prosthesis, with those of the PowerFoot Biom (iWalk, Cambridge, MA), a recently-developed powered prosthesis. Gait biomechanics and metabolic cost were compared in a group of 5 transtibial amputees during level-ground walking. The results provided preliminary evidence that the use of a powered prosthesis leads to a decrease in the level of oxygen consumption during ambulation due to improvements in ankle kinematics and kinetics primarily during late stance. An average decrease in oxygen consumption of 8.4% was observed during the study when subjects used the PowerFoot compared to the Ceterus. An average increase of 54% was observed in the peak ankle power generation during late stance. Our results suggest that powered prostheses have the potential for significantly improving ambulation in transtibial amputees. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/IEMBS.2011.6092035 | EMBC |
Keywords | Field | DocType |
peak ankle power generation,ankle kinematics,legged locomotion,oxygen consumption,walking,balance,prosthetics,o2,passive-elastic prosthesis,gait analysis,powerfoot biom,gait biomechanics,biologically-realistic gait pattern,locomotion,powered prosthesis,oxygen,transtibial amputees,ambulation,feature extraction,kinetic theory,power generation,kinetics | Prosthesis,Gait,Artificial limbs,Computer science,Physical therapy,During ambulation,Gait analysis,Biomechanics,Ankle | Conference |
Volume | ISSN | ISBN |
2011 | 1557-170X | 978-1-4244-4122-8 |
Citations | PageRank | References |
0 | 0.34 | 2 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chiara Mancinelli | 1 | 26 | 2.85 |
| Benjamin Patritti | 2 | 16 | 2.00 |
| Peppino Tropea | 3 | 0 | 0.68 |
| Richard M Greenwald | 4 | 0 | 0.34 |
| Rick Casler | 5 | 0 | 0.34 |
| Hugh M. Herr | 6 | 575 | 70.59 |
| p bonato | 7 | 282 | 39.26 |