Borgesius, E.C. (2012) Gross Mechanical Efficiency of the Arm-leg Cruiser ergometer in healthy male and female subjects. thesis, Human Movement Sciences.
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Abstract
The combined ann-leg Cruiser ergometer (EnrafNonius, Delft, The Netherlands) is assumed to be a relevant testing and training instrument in the rehabilitation of persons with a leg impairment, i.e. amputation. Gross Mechanical Efficiency and physical strain have not yet been systematically established in this form of combined ann-leg exercise in the context of other common rehabilitation exercise modes (i.e. cycling and handcycling). Purpose: To determine gross mechanical efficiency (GE) and physical strain during steady state submaximal Cruiser exercise in comparison to cycling ergometry and handcycling under similar conditions of external power output. Methods: 10 Healthy men (n=10;24±1.8yrs;79±10.5kg) and 12 healthy women (n=12;22.1±2.4;65.8±1 0.2 kg) enrolled in 4 submaximal steady state exercise tests on the respectively Cruiser ergometer, a bicycle ergometer, a handbike on a motor driven treadmill and again the Cruiser ergometer. All subjects performed seven 3 min bouts (PO= 20, 25, 30, 35, 40, 45, 20W) at 50rpm. Oxygen uptake, energy cost, ventilation, breathing frequency, heart rate and RPE were monitored. GE was determined from PO and energy cost. Results: Cruiser GEs (45W; men:13.0±1.3%, woman:15.0±3.1%) were not significantly different from cycling (45W; men:13.2±1.9%, women:14.6±1.9%), yet both were significantly higher than in handcycling ( 45W: men: 11.2±0.8%, women: 12.2±2.1 %; p<0.05). A comparable strain was found between Cruiser and bicycle test, but a significantly higher strain for handcycling (p<0.05). Apart from RPE, the repeated Cruiser tests did not show significant differences. Conclusion: Submaximal Cruiser exercise is comparable in GE and physical strain to leg cycling. The Cruiser seems to be a safe and effective exercise mode and a reliable testing device and suitable for exercise training in rehabilitation of persons with lower limb impairments.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Supervisors: and Woude, L.V.H van der and Simmelink, E.K. and Dekker, R. |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 10:53 |
| Last Modified: | 25 Jun 2020 10:53 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/1385 |
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