Wijnen, A. (Annet) (2015) The effect of joint angular velocity on torque production in the shoulder joint during functional movements in young adults, healthy elderly and elderly with subacromial pain syndrome. thesis, Human Movement Sciences.
Full text available on request.Abstract
Introduction. In general it has been observed that with age, a reduction in shoulder torque develops. Since there is a lack of experimental data on this topic, in the present study we measured the torque production at different angular velocities to determine age-related changes. Identifications of problems in torque production and power changes can help to develop a more specific exercise program to remain independent for a longer time. Therefore, the purpose of this study is to investigate the effect of joint angular velocity on torque production in the shoulder joint during functional movements in young adults, healthy elderly and elderly with subacromial pain syndrome (SAPS). Method. Nineteen right-handed subjects and one left-handed SAPS patient participated in the study. Ten subjects were healthy young adults nine were healthy elderly. Torque production was measured during ADL tasks recorded by the Optotrak camera motion system, using two different velocities (comfortable and as fast as possible). Torque production was also measured during isokinetic measurements recorded by the KinCom dynamometer; the measurements were also done at two velocities (60°/sec and 90°/sec). The peak torque for each movement was compared between the groups to identify age-related changes and the influence of velocity. Results. Significant age-related declines in peak torque were found during ADL tasks and isokinetic measurements. When the velocity is increased, healthy elderly produce a lower peak torque than healthy young adults. Conclusion. Healthy elderly perform the ADL movements with a lower angular velocity than the healthy young adults, and therefore perform a lower peak torque and a lower power production than healthy young adults. When the velocity is kept constant during the isokinetic measurements, a lower peak torque is produced when the velocity is increased. Unfortunately, only one patient with SAPS was measured. Keywords. Shoulder, subacromial pain syndrome, torque, angular velocity, kinetics
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Murgia, dr. A. and Diercks, prof. R. and Dekker, dr. R. and Hijmans, dr. J. |
| Faculty: | Medical Sciences |
| Date Deposited: | 20 Apr 2022 09:07 |
| Last Modified: | 20 Apr 2022 09:07 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3118 |
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