TY - JOUR
T1 - Relationship between serum creatine kinase activity following exercise-induced muscle damage and muscle fibre composition
AU - Magal, Meir
AU - Dumke, Charles L.
AU - Urbiztondo, Zea G.
AU - Cavill, Michael J.
AU - Triplett, N. Travis
AU - Quindry, John C.
AU - McBride, Jeff M.
AU - Epstein, Yoram
N1 - Funding Information:
This study was supported by the University Research Council Grant from Appalachian State University Research Council and the Frank Smith Wilkinson Lectureship Award from North Carolina Wesleyan College.
PY - 2010/2
Y1 - 2010/2
N2 - In this study, we examined the relationship between serum creatine kinase activity following exercise-induced muscle damage and muscle fibre composition. Seventeen untrained males volunteered and underwent a VO2max test, Wingate test, and an exercise-induced muscle damage protocol.Muscle soreness and blood samples were recorded before, immediately after, and 24, 48, 72, and 96 h after exercise. Biopsy samples from the vastus lateralis were collected one week after exercise-induced muscle damage and were assessed for muscle fibre composition. There was no significant relationship (P > 0.05) between muscle fibre composition and creatine kinase activity. A significant positive correlation (P < 0.05) was observed between soreness 48 h after exercise and type II and IIb fibres, and a significant negative correlation (P < 0.05) was observed between soreness 48 h after exercise and type I muscle fibres. Significant positive correlations were observed between soreness 48 h after exercise and the fatigue index, relative average power, and relative anaerobic capacity. Our results suggest that creatine kinase activity following exercise-induced muscle damage may not be related tomuscle fibre proportions, and higher post-exercisemuscular painmay be related to a predominance of type II muscle fibres and higher anaerobic capabilities.
AB - In this study, we examined the relationship between serum creatine kinase activity following exercise-induced muscle damage and muscle fibre composition. Seventeen untrained males volunteered and underwent a VO2max test, Wingate test, and an exercise-induced muscle damage protocol.Muscle soreness and blood samples were recorded before, immediately after, and 24, 48, 72, and 96 h after exercise. Biopsy samples from the vastus lateralis were collected one week after exercise-induced muscle damage and were assessed for muscle fibre composition. There was no significant relationship (P > 0.05) between muscle fibre composition and creatine kinase activity. A significant positive correlation (P < 0.05) was observed between soreness 48 h after exercise and type II and IIb fibres, and a significant negative correlation (P < 0.05) was observed between soreness 48 h after exercise and type I muscle fibres. Significant positive correlations were observed between soreness 48 h after exercise and the fatigue index, relative average power, and relative anaerobic capacity. Our results suggest that creatine kinase activity following exercise-induced muscle damage may not be related tomuscle fibre proportions, and higher post-exercisemuscular painmay be related to a predominance of type II muscle fibres and higher anaerobic capabilities.
KW - Delayed-onset muscle soreness
KW - Eccentric exercise
KW - Muscle fibre type
KW - Relative anaerobic capacity
KW - Relative power
UR - http://www.scopus.com/inward/record.url?scp=77949342996&partnerID=8YFLogxK
U2 - 10.1080/02640410903440892
DO - 10.1080/02640410903440892
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AN - SCOPUS:77949342996
SN - 0264-0414
VL - 28
SP - 257
EP - 266
JO - Journal of Sports Sciences
JF - Journal of Sports Sciences
IS - 3
ER -