Earticle

초록

영어

Whey protein is a nutritional supplement commonly ingested for recov-ery following exercise. However, the timing when whey protein supple-ment must be ingested after muscle-damaging exercise is debatable. Therefore, the present study investigated the effects of the timing of supplement ingestion on muscle damage markers after eccentric or muscle-damaging exercise. In total, 32 collegiate male students partici-pated in this study; they were randomly assigned to control group (n=8), before supplement group (n=8), after supplement group (n=8), or be-fore and after supplement group (n=8). Eccentric exercise was per-formed using elbow flexors with a modified preacher curl machine. Subsequently, maximal isometric strength, muscle soreness, range of motion (relaxed and flexed arm angle), and blood markers (creatine ki-nase and aspartate transaminase) were measured before and after ex-ercise. Repeated-measure analysis of variance was used to analyze the effects of timing of supplement. No significant group by time effects were noted in maximal isometric strength, muscle soreness, range of motion, and blood markers (P>0.05). The timing of whey protein supple-ment did not affect reduction of muscle damage or recovery following eccentric exercise.

목차

Abstract
 INTRODUCTION
 MATERIALS AND METHODS
  Subjects
  Body composition
  Whey protein supplement
  Eccentric exercise
  Maximal isometric strength
  Muscle soreness
  Range of motion
  Blood markers
  Statistical analysis
 RESULTS
 DISCUSSION
 REFERENCES

키워드

저자

• Jooyoung Kim [ Sport, Health and Rehabilitation Major, College of Physical Education, Kookmin University, Seoul, Korea ]
• Chulhyun Lee [ Sport, Health and Rehabilitation Major, College of Physical Education, Kookmin University, Seoul, Korea ]
• Joohyung Lee [ Sport, Health and Rehabilitation Major, College of Physical Education, Kookmin University, Seoul, Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  JER [Journal of Exercise Rehabilitation]

• 간기

  격월간

• pISSN

  2288-176X

• eISSN

  2288-1778

• 수록기간

  2013~2026

• 등재여부

  SCOPUS,KCI 등재

• 십진분류

  KDC 517 DDC 613