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Multi-axis prosthetic knee resembles alpine skiing movements of an intact leg [Elektronski vir]Demšar, Ivan ...The purpose of the study was to analyse the flexion angles of the ski boot, ankle and knee joints of an above-knee prosthesis and to compare them with an intact leg and a control group of skiers. One ... subject with an above-knee amputation of the right leg and eight healthy subjects simulated the movement of a skiing turn by performing two-leg squats in laboratory conditions. By adding additional loads in proportion to body weight (BW; +1/3 BW, +2/3 BW, +3/3 BW), various skiing regimes were simulated. Change of Flexion Angle (CoFA) and Range of Motion (RoM) in the ski boot, ankle and knee joints were calculated and compared. An average RoM in the skiing boot on the side of prosthesis (4.4 +/- 1.1°) was significantly lower compared to an intact leg (5.9 +/- 1.8°) and the control group (6.5 +/- 2.3°). In the ankle joint, the average RoM was determined to be 13.2 +/- 2.9° in the prosthesis, 12.7 +/- 2.8° in an intact leg and 14.8 +/- 3.6 in the control group. However, the RoM of the knee joint in the prosthesis (42.2 +/- 4.2°) was significantly larger than that of the intact leg (34.7 +/- 4.4°). The average RoM of the knee joint in the control group was 47.8 +/- 5.4°. The influences of additional loads on the kinematics of the lower extremities were different on the side of the prosthesis and on the intact leg. In contrast, additional loads did not produce any significant differences in the control group. Although different CoFAs in the ski boot, ankle and knee joints were used, an above-knee prosthesis with a built-in multi-axis prosthetic knee enables comparable leg kinematics in simulated alpine skiing.Source: Journal of Sports Science and Medicine [Elektronski vir] : free electronic journal. - ISSN 1303-2968 (Vol. 14, iss. 4, Dec. 2015, str. 841-848)Type of material - e-article ; adult, seriousPublish date - 2015Language - englishCOBISS.SI-ID - 14346779
Author
Demšar, Ivan |
Duhovnik, Jože, 1948- |
Lešnik, Blaž |
Supej, Matej
Topics
above-knee amputation |
alpine skiing |
impairment |
kinematics |
prosthesis |
nadkolenska aputacija |
alpsko smučanje |
kinematika |
proteze
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Demšar, Ivan | 23289 |
Duhovnik, Jože, 1948- | 02859 |
Lešnik, Blaž | 16124 |
Supej, Matej | 20755 |
Source: Personal bibliographies
and: SICRIS
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