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Gazzetta Medica Italiana Archivio per le Scienze Mediche 2016 July-August;175(7-8):289-96

Copyright © 2016 EDIZIONI MINERVA MEDICA

lingua: Inglese

Acute effects of isokinetic and graded exercise on oxidative stress and antioxidants in college students

Chang G. KIM 1, Sung J. YOON 2, Bog J. JEOUNG 3, Jin S. LEE 2

1 Department of Sports Science, Gachon University, Seongnam, South Korea; 2 Exercise Physiology Lab, Department of Physical Education, Graduate School, Korea University, Seoul, South Korea; 3 Department of Exercise Rehabilitation and Welfare, Gachon University, Inchon, South Korea


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BACKGROUND: This study examined the acute effects of isokinetic contractions (IC) and a graded exercise test (GXT 100% and 70% VO2max) with different intensities on derivatives of reactive oxygen metabolites (d-ROMs) and biological antioxidant potential (BAP) in healthy college students.
METHODS: Thirty-six (age: 22.58±1.62 years) were randomly assigned to perform slow IC (1.05 rad/s) and fast (4.19 rad/s) speeds, GXT at weekly intervals. Blood samples were collected at rest, immediately after exercise (IAE), after 30 min of recovery (R30), 60 min of recovery (R60) and analysis for d-ROMs and BAP levels.
RESULTS: The d-ROMs levels were significantly between slow IC and GXT, and fast IC from 70% VO2max in IAE, 100% VO2max significant from 70% VO2max in R30 min and fast IC significant from GXT (P<0.01) in R60 min. IAE were significantly higher than rest, R30, and R60 min and R30 min than R60 min in 100% VO2max. BAP levels in slow IC were significantly lower than GXT (P<0.05) in IAE and R60 min. 100% VO2max significant from slow IC (P<0.05) and fast IC (P<0.01) in R30 min and fast IC significant from 100% VO2max in R60 min. BAP levels at IAE were significantly higher than R60 min in slow IC, and significant from rest, R30 and R60 min in fast IC, GXT.
CONCLUSIONS: To summarize, the acute responses of d-ROM and BAP levels in IC and GXT were found differently based on recovery time and modes of exercise.

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