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A Journal on Psychiatry, Psychology and Psychopharmacology
Official Journal of the Italian Society of Social Psychiatry
Indexed/Abstracted in: EMBASE, e-psyche, PsycINFO, Scopus, Emerging Sources Citation Index
Minerva Psichiatrica 2007 September;48(3):269-75
Physiological performance factors in various weight classes in male collegiate Tae-kwon-do athletes
Chen J. C. 1, Lin Z. P. 1, Chen K. T. 2, Hsieh C. C. 3, Yang R. S. 4
1 Department of Physical Education Physical Education Chin-min College, Taiwan
2 Department of Genenal Education Ming Hsin University of Science and Technology, Hsinchu, Taiwan
3 Department of Physical Education National Hsinchu University of Education, Hsinchu, Taiwan
4 Department of Orthopaedics National Taiwan University Hospital, Taipei, Taiwan
Aim. The study investigated the effects of the related physiological factors on the training performance among the subjects in the various weight classes.
Methods. Twenty-seven elite division I male student Tae-kwon-do (TKD) players were studied. Each subject underwent a treadmill training program until complete exhaustion at a starting speed of 15 mph, followed by increment by 5 mph every 2 min. The heart rate (HR) and oxygen consumption were assessed by a wireless heart recorder (POLAR) and Vmax 29 gas analyzer. The One-Way ANOVA Repeated Scheffe was used for the statistical analysis.
Results. Group 3 TKD players exhibited a slower HRmax than group 1 and 2 subjects (P<0.05). In addition, group 3 TKD players also showed a lower V.O2max than group 1 and 3 subjects (P<0.05), as well as a lower blood lactic acid levels (P<0.05), respectively. With regards to the urobilinogen post-exercise at 15th min, group 3 TKD players showed a significantly higher level as compared with group 1 and 2 subjects (P<0.05). Group 2 TKD players showed a significantly higher urobilinogen level than group 1 and 3 subjects (P<0.05). The results showed that group 1 TKD players performed better than the other groups.
Conclusion. The TKD players in different weight classes showed different V.O2max and urobilinogen levels. Thus, the data (V.O2max, blood lactic acid, urobilinogen, power output) can be used as reference for both coaches and players to understand the TKD player’s physical condition.