Rachel Agostino

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INTRODUCTION: Body composition details the materials that make up the human body. Fat mass primarily functions as insulation and energy storage, but can be detrimental to physical performance when present in excess. Fat-free mass contains muscles and the remainder of substances within the body. Maximal oxygen consumption (VO2max) is the maximum capacity of the body to transport and utilize oxygen during incremental exercise to maximal levels. VO2max correlates with fat-free mass. Power and work can be used to measure the anaerobic system. The amount of muscle mass correlates with the power and work that is produced. PURPOSE: The purpose of this study was to investigate the relationship between body composition and fitness parameters. METHODS: Six recreationally active men (age 20.7 + 1.1 yrs) volunteered to participate in this study. Each subject had body composition assessed using the BodPod. Each subject performed a graded exercise test on the treadmill with increasing speed and elevation until exhaustion. During each test heart rate (HR) and rate of perceived exertion (RPE) were recorded along with the maximal values measured by the metabolic cart, maximal oxygen consumption (VO2max). Each subject also performed a Wingate Anaerobic Power test. During the 30 second test, power and total work were recorded. Body composition and fitness parameters were analyzed using correlational analyses. RESULTS: The percent body fat was 15.1 ± 6.0%, height 183.6 ± 9.2 cm, weight 79.2 ± 9.9 kg. The maximal values: HR (183 ± 6.7 bpm); RPE (18 ± 1.2); maximal time (12: 54 ± 1: 37 min:sec) and VO2max (52.683 ± 7.3 mL/kg/min). Anaerobic results were: relative mean power (7.238 ± 0.739 W/kg) and relative peak power (9.115 ± 1.265 W/kg). Correlational analysis showed strong and moderate correlations between: relative mean power and body fat percentage (-0.841), relative peak power and body fat percentage (-0.836), and lean mass percentage and total time (0.607). CONCLUSION: The results of this study indicate that there is a strong inverse correlation between relative mean power and relative peak power and body fat percentage. There was a positive moderate correlation between lean mass percentage and total time on the maximal incremental test. Results suggest there is a relationship between muscles mass and the ability to generate anaerobic power. Fitness parameter results can be used create training programs to optimize athletic performance.


Kinesiology | Life Sciences

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