A preliminary muscle activity analysis: Handle based and push-rim wheelchair propulsion
Approximately ninety percent of the wheelchair users worldwide prefer the conventional push rim mode of propulsion for daily mobility and rehabilitation. Even though push-rim wheelchairs help to promote a healthy life style, the high muscular demand and the non-continuous push motions can lead to serious upper extremity injuries. In this study, muscle EMG data of ten healthy subjects were recorded for a newly introduced handle based propulsion mechanism (HBP) and compared to conventional push-rim propulsion at two workloads, 25 W and 35 W respectively. The results for the mean peak muscle activations at both workloads demonstrate that push-rim propulsion leads to higher peak muscle activity compared to HBP at a similar wheelchair forward velocity of 1.11 m/s. The generation of these high peak muscle activations with increasing loads in push-rim propulsion over time can lead to overuse injuries. Overall, the use of the HBP mechanism is less straining to the muscles and may reduce fatigue during prolonged propulsion.
© Copyright 2019 Journal of Biomechanics. Elsevier. Kaikki oikeudet pidätetään.
Aiheet: | pyörätuoliurheilu työntövoima tekniikka urheiluvälineet apuväline kuormitus nopeus uupumus lihas kestävyys |
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Aihealueet: | vammaisurheilu |
DOI: | 10.1016/j.jbiomech.2019.04.011 |
Julkaisussa: | Journal of Biomechanics |
Julkaistu: |
2019
|
Vuosikerta: | 89 |
Numero: | May |
Sivuja: | 119-122 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |