Abstract
Shuttle run, or side-step cutting, is a common warm-up exercise for athletes. Anterior cruciate ligament (ACL) injury was reported to occur during the single-limb support landing, such as shuttle run. There is little attention about the speed effect on lower extremity (L/E) biomechanics during shuttle run. The purpose of this study was to investigate the L/E biomechanics at two different speeds during shuttle run. A rate of 125 bpm was defined as the slow speed in this study, and 140 bpm as the fast speed. 6 young athletes without history of L/E illness were recruited. Helen Hayes marker set was adopted, and the motion capture system was used to detect the trajectories of the passive markers. Ground reaction force (GRF) was synchronously measured by a force plate. The period of foot contact with force plate was divided into weight acceptance phase and pushing phase. The results showed the significant higher vertical GRF at fast speed in the pushing phase (p=0.04). Less knee flexion angle was also demonstrated at the rate of 140 bpm. Higher GRF and less knee flexion were reported as risk factors for ACL injury. Therefore, speed effect on L/E biomechanics during shuttle run should be taken into consideration to prevent ACL injury.
| Original language | English |
|---|---|
| Title of host publication | World Congress on Medical Physics and Biomedical Engineering |
| Subtitle of host publication | Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics |
| Pages | 1808-1810 |
| Number of pages | 3 |
| Edition | 4 |
| DOIs | |
| Publication status | Published - 2009 Dec 1 |
| Event | World Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics - Munich, Germany Duration: 2009 Sep 7 → 2009 Sep 12 |
Publication series
| Name | IFMBE Proceedings |
|---|---|
| Number | 4 |
| Volume | 25 |
| ISSN (Print) | 1680-0737 |
Other
| Other | World Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics |
|---|---|
| Country | Germany |
| City | Munich |
| Period | 09-09-07 → 09-09-12 |
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All Science Journal Classification (ASJC) codes
- Bioengineering
- Biomedical Engineering
Cite this
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Speed effect on lower extremity biomechanics during shuttle run. / Lu, S. C.; Huang, C. Y.; Tsai, I. J.; Tsao, P. C.; Guo, M. C.; Su, Fong-chin.
World Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics. 4. ed. 2009. p. 1808-1810 (IFMBE Proceedings; Vol. 25, No. 4).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Speed effect on lower extremity biomechanics during shuttle run
AU - Lu, S. C.
AU - Huang, C. Y.
AU - Tsai, I. J.
AU - Tsao, P. C.
AU - Guo, M. C.
AU - Su, Fong-chin
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Shuttle run, or side-step cutting, is a common warm-up exercise for athletes. Anterior cruciate ligament (ACL) injury was reported to occur during the single-limb support landing, such as shuttle run. There is little attention about the speed effect on lower extremity (L/E) biomechanics during shuttle run. The purpose of this study was to investigate the L/E biomechanics at two different speeds during shuttle run. A rate of 125 bpm was defined as the slow speed in this study, and 140 bpm as the fast speed. 6 young athletes without history of L/E illness were recruited. Helen Hayes marker set was adopted, and the motion capture system was used to detect the trajectories of the passive markers. Ground reaction force (GRF) was synchronously measured by a force plate. The period of foot contact with force plate was divided into weight acceptance phase and pushing phase. The results showed the significant higher vertical GRF at fast speed in the pushing phase (p=0.04). Less knee flexion angle was also demonstrated at the rate of 140 bpm. Higher GRF and less knee flexion were reported as risk factors for ACL injury. Therefore, speed effect on L/E biomechanics during shuttle run should be taken into consideration to prevent ACL injury.
AB - Shuttle run, or side-step cutting, is a common warm-up exercise for athletes. Anterior cruciate ligament (ACL) injury was reported to occur during the single-limb support landing, such as shuttle run. There is little attention about the speed effect on lower extremity (L/E) biomechanics during shuttle run. The purpose of this study was to investigate the L/E biomechanics at two different speeds during shuttle run. A rate of 125 bpm was defined as the slow speed in this study, and 140 bpm as the fast speed. 6 young athletes without history of L/E illness were recruited. Helen Hayes marker set was adopted, and the motion capture system was used to detect the trajectories of the passive markers. Ground reaction force (GRF) was synchronously measured by a force plate. The period of foot contact with force plate was divided into weight acceptance phase and pushing phase. The results showed the significant higher vertical GRF at fast speed in the pushing phase (p=0.04). Less knee flexion angle was also demonstrated at the rate of 140 bpm. Higher GRF and less knee flexion were reported as risk factors for ACL injury. Therefore, speed effect on L/E biomechanics during shuttle run should be taken into consideration to prevent ACL injury.
UR - http://www.scopus.com/inward/record.url?scp=77950113545&partnerID=8YFLogxK
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U2 - 10.1007/978-3-642-03882-2-480
DO - 10.1007/978-3-642-03882-2-480
M3 - Conference contribution
SN - 9783642038815
T3 - IFMBE Proceedings
SP - 1808
EP - 1810
BT - World Congress on Medical Physics and Biomedical Engineering
ER -