Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine ( 2018 ) 17 , 445 - 454

Research article
Comparison of Proprioceptive Training and Muscular Strength Training to Improve Balance Ability of Taekwondo Poomsae Athletes: A Randomized Controlled Trials
Sihyun Yoo , Sang-Kyoon Park, Sukhoon Yoon, Hee Sung Lim, Jiseon Ryu
Author Information
Motion Innovation Centre, Institute of Sport Science, Korea National Sport University, Seoul, Republic of Korea

Sihyun Yoo
✉ Motion Innovation Centre, Institute of Sport Science, Korea National Sport University, Yangjaedaero 1239, Songpa-gu, Seoul, Republic of Korea
Email: hope222ysh@knsu.ac.kr
Publish Date
Received: 16-10-2017
Accepted: 26-06-2018
Published (online): 14-08-2018
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ABSTRACT

Maintaining balance while performing “Hakdariseogi” in Taekwondo, which involves standing on one leg, is a critical aspect of the Poomsae competition. The purpose of this study was to investigate the effect of proprioceptive training and lower-limb muscular strength training on the balance of Taekwondo Poomsae athletes over a 6-week period. Thirty Taekwondo Poomsae athletes were randomly assigned to three groups, namely, a proprioception training group, a lower-limb muscular strength training group, and a control group. Biomechanics data were collected using eight infrared cameras (Qualysis, Sweden) at 200 Hz and a force plate (Kistler, Switzerland) at 2,000 Hz while the participants performed “Hakdariseogi” before and after the 6-week intervention. Balance and stability variables were calculated using customized MATLAB R2014b software (Mathworks, Inc., USA). The medio-lateral (M/L) center of pressure (CoP) range, M/L CoP mean velocity, antero-posterior (A/P) CoP range, A/P CoP mean velocity, and the vertical ground reaction torque after the training were reduced at P1 in the PG groups (p < 0.05). A decrease in the A/P CoP range, A/P CoP mean velocity, and vertical ground reaction torque after the training were observed at P2 in the PG and SG groups (p < 0.05). The PG exhibited a smaller A/P CoP range and A/P CoP mean velocity, in comparison to CG (p < 0.05). The A/P CoP position at P1 was negatively correlated with the vertical ground reaction torque, A/P CoP range, and A/P CoP mean velocity at P2(r = -0.438, r = -0.626, r = -0.638). Based on the above results, this study determined that both proprioception training and lower-extremity muscle strength training resulted in an improvement of athletic performance. It was also desirable to move the CoP position through conscious effort forward at P2 in order to maintain the crane stance without sway.

Key words: Taekwondo, crane stance, balance, proprioceptive training, muscular strength training


           Key Points
  • The proprioception training improved the balance of Taekwondo athletes.
  • The lower-extremity muscle strength training improved the balance of Taekwondo athletes.
  • It was desirable to move the CoP position through conscious effort forward in order to maintain the “Hakdariseogi” stance without sway.
 
 
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