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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2341

Authors: Kinfu, Hailu
Advisors: Professor Yekoye Abebe
Keywords: Pulmonary profiles
skinfold thickness,
Copyright: Jun-2008
Date Added: 3-May-2012
Publisher: AAU
Abstract: Important test components for performance evaluation, including assessment of body composition, maximum aerobic capacity, heart rate and pulmonary function evaluation are worth considering. The purpose of this study was to assess the influence of Skinfold thickness and some selected cardiopulmonary parameters in middle distance running performance. Twenty top-class middle distance runners (10 males, with Age = 18-26, Weight = 52-68kg, Height = 165-183cm, BMI (kg/m2) = 17.63-20.90; and 10 females with Age = 18-26, Weight = 41-57kg, Height = 157- 178cm, BMI (kg/m2) = 14.53-19.99) from Ethiopian Athletics Federation volunteered to participate in the study. Skinfolds were measured at biceps, triceps, sub-scapular and supra-iliac regions. Vital capacity (VC), Forced expiratory vital capacity (FVC), Forced expiratory volume in the first second (FEV1), FEV1 %, Peak expiratory flow (PEF), Maximum expiratory flow at 25% of maximal VC (MEF25), Maximum expiratory flow at 50% of maximal VC (MEF50), Maximum expiratory flow at 75% of maximal VC (MEF75), Maximum mid expiratory flow between 25% and 75% of FVC (MMEF), Peak Inspiratory Flow (PIF) and Peak Expiratory Flow (PEF) were measured by Spirometer. The maximal rate of oxygen consumption (VO2max) was determined using a continuous, incremental exercise protocol conducted on an electronically braked treadmill. Cardiotester belt was used to measure heart rate at different level of treadmill testing. Correlation analyses were applied to each variables and run time (performance). Performance was rated by the scoring procedures of the International Amateur Athletic Federation (IAAF). In male athletes, significant negative correlations were observed between skinfold measurement at sub-scapular (r = 0.676, and P = 0.046), and supra-iliac (r = 0.798, P = 0.01) and IAAF score. High negative correlation were found between sum of four skinfold measures and IAAF score (r = 0.800, P = 0.010). In the female athletes, high negative correlations were found between skinfolds measurement at sub-scapular (r = -0.639, P = 0.047), supra-iliac (r = -0.751, P = 0.012), sum of four skinfolds measurement (r = -0.778, P = 0.008), body fat percentage (r = -0.840, P = 0.002) and IAAF score. There was a negative significant correlation between IAAF score and Percent Sub Maximum Heart Rate (%HRmax) at 0.01 level of significance (r = -0.843 in female and r = -0.865 in male) runners. VO2max (measured as ml/min/kg) was positively correlated with IAAF score in male and female runners (r = 0.805, P = 0.003) (r = 0.859, P = 0.001). IAAF score was positively correlated (p<0.05) in the male athletes with the following variables: VC (r = 0.65), FVC (r = 0.70), and FEV1 (r = 0.63). In female athletes IAAF score was also positively correlated with VC (r = 0.66), FVC (r = 0.85) and FEV1 (r = 0.80). Results of this study suggested that lower skinfold thicknesses and sub maximal heart rate were correlated with faster race time; higher lung volume and VO2max are associated with faster run time.
URI: http://hdl.handle.net/123456789/2341
Appears in:Thesis - Medical Physiology

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