Earticle

초록

영어

To examine the effect of 10-week interval training (IT) at varying intensi-ties on serum muscle damage indicators and antioxidant capacity and determine its effect on the 800-m records of adolescent middle-dis-tance runners. Twenty male high-school middle-distance runners were randomized between the high-intensity IT (HIIT; n=10) and the medi-um-intensity IT (MIIT; n=10) groups. Three sessions/week for 10 weeks (total of 30 sessions) were performed; one session of IT was for 60 min. The high and medium exercise intensities were set at 90%–95% and 60%–70% heart rate reserve (HRR), respectively. Intensity at rest was 40% HRR for both groups. Weight training was performed at 60%–70% of one repetition maximum for two sessions/week. The changes in se-rum muscle damage indicators and antioxidant capacity in the two groups were measured, and their effects on the 800-m records were analyzed. The 10-week training reduced serum muscle damage indica-tors in middle-distance runners, but only the HIIT group displayed a de-crease in creatine kinase. For the change in antioxidant capacity, the two groups demonstrated no significant change in malondialdehyde (MDA), whereas the HIIT group exhibited a significant increase in super-oxide dismutase (SOD). IT also reduced the 800-m records in middle-dis-tance running, and the effect was stronger in the HIIT group. In conclu-sion, 10-week HIIT can have a positive effect on muscle damage indi-cators, showed a significant increase in SOD as a key indicator of anti-oxidant capacity, and improved the 800-m records in middle-distance runners.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
Subject
Experimental procedure
Statistical analyses
RESULTS
Changes in LDH level
Changes in CK level
Changes in MDA level
Changes in SOD level
Changes in the 800-m records
Longitudinal effect of each variable on the 800-m records
DISCUSSION
CONFLICT OF INTEREST
ACKNOWLEDGMENTS
REFERENCES

키워드

저자

• Yaowei Zhao [ School of Physical Education, Handan University, Handan, China ]
• Young-Je Sim [ Department of Physical Education, Kunsan National University, Gunsan, 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