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Effect of Landing Heights on Muscle Activities and Ground Reaction Force during Drop Landing in Healthy Adults  

Chang, Jong-Sung (Department of Physical Therapy, College of Health & Therpy, Daegu Haany University)
Lee, Mi-Young (Department of Physical Therapy, College of Health & Therpy, Daegu Haany University)
Publication Information
Journal of the Korean Society of Physical Medicine / v.6, no.2, 2011 , pp. 145-151 More about this Journal
Abstract
Purpose: The study was designed to investigate the effects of landing heights on muscle activities and ground reaction force during drop landing. Methods: Sixteen healthy adults were recruited along with their written informed consent. They performed a drop-landing task at the height of 20, 40, and 60cm. They completed three trials in each condition and biomechanical changes were measured. The data collected by each way of landing task and analyzed by One-way ANOVA. Ground reaction forces were measured by force flate, muscle activities measured by MP150 system. Results: There were significant differences in ground reaction forces, and significant increases in muscle activities of tibialis anterior, medial gastrocnemius and biceps femoris with landing heights. Conclusion: These findings revealed that heights of landing increases risk factors of body damage because of biomechanical mechanism and future studies should focus on prevention from damage of external conditions.
Keywords
Drop landing; Ground reaction force; Muscle activation;
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Times Cited By KSCI : 2  (Citation Analysis)
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