Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
from September 2014
©Journal of Sports Science and Medicine (2010) 09, 239 - 244

Research article
Differences in Physical Fitness and Cardiovascular Function Depend on BMI in Korean Men
Wi-Young So1, Dai-Hyuk Choi2, 
Author Information
1 Health and Exercise Science Laboratory, Institute of Sports Science, Department of Physical Education, Seoul National University, Seoul, Korea
2 Department of Physical Education, Graduate School of Education, Sogang University, Seoul, Korea

Dai-Hyuk Choi
‚úČ Sogang University, C.P.O. Box 1142, Seoul, Korea, 121-742
Publish Date
Received: 22-02-2010
Accepted: 25-03-2010
Published (online): 01-06-2010
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We investigated the associations between cardiovascular function and both body mass index and physical fitness in Korean men. The subjects were 2,013 men, aged 20 to 83 years, who visited a health promotion center for a comprehensive medical and fitness test during 2006-2009. The WHO's Asia-Pacific Standard Report definition of BMI was used in this study. Fitness assessment of cardiorespiratory endurance, muscular strength, muscular endurance, flexibility, power, agility, and balance were evaluated by VO2max (ml/kg/min), grip strength (kg), sit-ups (reps/min), sit and reach (cm), vertical jump (cm), side steps (reps/30s), and standing on one leg with eyes closed (sec), respectively. For cardiovascular function, we evaluated systolic blood pressure (SBP), diastolic blood pressure (DBP), resting heart rate (RHR), double product (DP), and vital capacity. There were significant decreases in cardiorespiratory endurance (p < 0.001), power (p < 0.001), and balance (p < 0.001), and increases in muscular strength (p < 0.001). Further, cardiovascular function, including SBP (p < 0.001), DBP (p < 0.001), double product (p < 0.001), and vital capacity (p=0.006) appeared to be lower for the obesity group. We conclude that an obese person exhibits lower fitness level and weaker cardiovascular function than a normal person.

Key words: Body mass index, obesity, physical fitness, cardiovascular function

           Key Points
  • The obese group had a lower fitness level, including cardiorespiratory endurance, power, and balance.
  • Obese group demonstrated an increase in muscular strength.
  • Obese group had higher blood pressure and weaker cardiovascular function, including DP and vital capacity, than the normal group.
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