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Open AccessArticle

Posture and Time Arrangement Influence Shank Circumference Reduction When Performing Leg Raising Exercise

1
Department of Industrial Engineering and Management, Ming Chi University of Technology, New Taipei 24301, Taiwan
2
Department of Industrial Design, Chang Gung University, Touyuan 33302, Taiwan
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(16), 5735; https://doi.org/10.3390/ijerph17165735
Received: 17 July 2020 / Revised: 2 August 2020 / Accepted: 7 August 2020 / Published: 8 August 2020
(This article belongs to the Special Issue Impact of Exercise and Sports on Health)
This study recruited nine young women who performed a leg raising exercise under six test combinations of three holding postures (lying supine, placing the shanks on a yoga ball, and elevating the legs at 60° against the wall) and two time arrangements (continuous vs. intermittent) for a period of 15 min. The intermittent arrangement included an additional 1-min rest set in the middle of the 15 min test. The participants’ shank circumference (SC) reductions and discomfort ratings were measured after each test combination was performed. Results indicated that the most efficient method for SC reduction was the yoga ball (5.4 mm), followed by the supine lying posture (4.6 mm) and wall-supported leg raising (3.1 mm). A significant interaction of posture × time arrangement (p < 0.01) implied that the yoga ball method combined with a 1-min rest produced the greatest SC reduction (6.7 mm). Our results also showed that participants experienced the greatest discomfort (score: 4.96) when performing wall-supported leg raising, compared with both lying supine (score: 1.34) and the yoga ball (score: 1.32). This study suggests that the effectiveness of leg raising as conventionally practiced for eliminating leg fatigue or swelling requires further consideration. View Full-Text
Keywords: leg raising; holding posture; shank circumference (SC); subjective discomfort leg raising; holding posture; shank circumference (SC); subjective discomfort
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Chen, Y.-L.; Cheng, Y.-T.; Ye, J.-N.; Huang, T.-L.; Chen, W.-N. Posture and Time Arrangement Influence Shank Circumference Reduction When Performing Leg Raising Exercise. Int. J. Environ. Res. Public Health 2020, 17, 5735.

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