Journal of Digital Convergence (디지털융복합연구)

The Society of Digital Policy and Management (한국디지털정책학회)
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The Effects of Muscle Balance in Lower Limb on Anaerobic Pedaling Capacity among Elite Cyclists

사이클 선수의 하지근력균형이 무산소성 페달링 기능에 미치는 영향

  • Park, Hyun-Ju (General Graduate School, Department of Physical Education, Dankook University) ;
  • Kim, Jung-Hoon (College of Sports Science, Dankook University)
  • 박현주 (단국대학교 일반대학원 체육학과) ;
  • 김정훈 (단국대학교 스포츠과학대학)
  • Received : 2019.03.26
  • Accepted : 2019.06.20
  • Published : 2019.06.28
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Abstract

The purpose of this study was to investigate the effects of muscle asymmetry of knee joint among elite cyclists on anaerobic pedaling power related capacity. In another word, based on isokinetic strength of Non-Dominant, ND and Dominant, D, side, high, moderate and low ratio of ND to D were classified as High Symmetry Group, Moderate Symmetry Group and Asymmetry Group, respectively. Analysis of muscle asymmetry of extensor's ND and D side might not lead to any difference between the three groups. Based on muscle strength analysis of the flexor's ND and D, there was statistical difference between the groups in ND flexor and in the muscle balance index of the flexor muscle. This result also leads to significant difference in pedaling power functionality, but this effects might not lead to any negative pedaling power. Therefore, among even cyclists who may show almost the same recruitment pattern of ND and D side during pedaling stroke muscle asymmetry could exist but this phenomena might not negatively contribute to the pedaling capacity.

이 연구의 목적은 사이클 선수를 대상으로 슬관절 등속성 근기능의 좌 우측 불균형이 무산소성 페달링 파워 관련 변인에 미치는 영향을 조사하는 것이다. 슬관절 등속성 근력 기준으로 비주측과 주측의 근력균형지수가 매우 균형적인 집단(High Symmetry Group, HSG), 적정수준의 집단(Moderate Symmetry Group, MSG), 불균형이 존재하는 집단(Asymmetry Group, AG)으로 분류하여 페달링 기능을 비교하였다. 그 결과 신근력의 비주측과 주측의 근력 불균형은 페달링 기능의 집단 간 차이점이 없었다. 한편, 굴근력의 비주측과 주측 근력균형지수의 불균형은 무산소성 페달링 파워 관련 변인에서 집단 간 차이점이 미세하게 존재하였지만, 페달링 기능에 부정적인 영향을 미치는 수준은 아닌 것으로 판단된다. 그러므로 좌 우측 근기능이 거의 동일하게 적용되는 사이클 선수에게도 근력 불균형이 존재하였으나, 이러한 불균형이 페달링 기능에 부정적인 영향을 미치지 않는 것으로 판단된다.

Keywords

Table 1. Subjects’ Characteristics among Extensor Muscle Balance Groups

DJTJBT_2019_v17n6_389_t0001.png 이미지

Table 2. Subjects’ Characteristics among Flexor Muscle Balance Groups

DJTJBT_2019_v17n6_389_t0002.png 이미지

Table 3. Isokinetic Muscular Strength of Extensor Measured at 60 degrees/sec

DJTJBT_2019_v17n6_389_t0003.png 이미지

Table 4. Wingate Test Results in Groups of Extensor Muscle Balance Measured at 60 degrees/sec

DJTJBT_2019_v17n6_389_t0004.png 이미지

Table 5. Isokinetic Muscular Strength of Flexor Measured at 60 degrees/sec

DJTJBT_2019_v17n6_389_t0005.png 이미지

Table 6. Wingate Test Results in Groups of Flexor Muscle Balance Measured at 60 degrees/sec

DJTJBT_2019_v17n6_389_t0006.png 이미지

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