ASSOCIATION BETWEEN CORE MUSCLES ACTIVATION AND THE 400-METER OVERGROUND SPRINTING VELOCITY IN WHEELCHAIR RACERS

Authors

  • Wipoo Kumnerddee Department of Rehabilitation Medicine, Phramongkutklao Hospital and College of Medicine
  • Tanormsak Senakham Department of Sports Science, Srinakharinwirot University
  • Aungkana Theplertboon Department of Rehabilitation Medicine, Charoenkrung Pracharuk Hospital
  • Weerawat Limroongreungrat College of Sports Science and Technology, Mahidol University

DOI:

https://doi.org/10.55374/jseamed.v2i2.12

Keywords:

Athlete athletics, Disabilities, Paraplegia, Sports, Propulsion

Abstract

Objective: To measure the activity of the core muscles and the middle trapezius in T54 class wheelchair racers during full-effort over ground sprinting and to determine its association with propulsion velocity. Material and Method: Eightmale international wheelchair racershaving normal upper limband partial to normaltrunk function(T54 class athletes) propelled their racing wheelchairs on 400-m competition trackwith maximal effort. Electromyography(EMG)of the rectus abdominis (RA), iliocostalis lumborum (IL), longissimus thoracis (LT) and middle trapezius (MT) were recorded at each 100-m reach using a wireless surface EMG recorder. Percentage of maximal voluntary contraction (%MVC)was measuredand correlated with propulsion velocity. Results:Median %MVC of RA, IL, LT and MT were 54.2, 43.9, 30.6 and 35.6% respectively. Positive associationto propulsion velocity was found in RA (p = 0.04, r = 0.73). Negative association to propulsion velocity was also found in MT (p = 0.03, r = -0.77). Conclusion: Abdominal function wasactivated most andassociated with propulsion velocity in male T54 class wheelchair racers. In addition, optimizing scapularretraction may benefit propulsionvelocity.

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Published

2018-12-26

How to Cite

1.
Kumnerddee W, Senakham T, Theplertboon A, Limroongreungrat W. ASSOCIATION BETWEEN CORE MUSCLES ACTIVATION AND THE 400-METER OVERGROUND SPRINTING VELOCITY IN WHEELCHAIR RACERS. J Southeast Asian Med Res [Internet]. 2018 Dec. 26 [cited 2024 Apr. 17];2(2):76-84. Available from: https://jseamed.org/index.php/jseamed/article/view/12

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