EFFECTS OF AEROBIC DANCE ON SELECTED CARDIOVASCULAR DISEASE RISK FACTORS OF OVERWEIGHT/OBESE NIGERIAN ADULTS

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Date
2007
Authors
EZRA, ABEDNEGO GUNEN
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Abstract
This study was carried out to assess the effects of aerobic dance on selected cardiovascular disease risk factors of overweight/obese Nigerian male and female adults. The CVD risk factors included BMI, determined by dividing the weight (kg) by height in meter squared (wt/ht2), abdominal fat patterns (WHR), determined by dividing the waist circumference (cm) by the hip circumference (cm), resting heart rate (RHR), resting systolic (RSBP) and resting diastolic blood pressure (RDBP) and VO2 max.. These variables often aggregate to cause a variety of health and fitness problems to the cardiovascular system that include hypertension, non-insulin dependent diabetes mellitus (NIDDM), osteoarthritis and stroke among others. These variables were evaluated using the standard laboratory procedures and clinical techniques respectively. All the variables were assessed three times at baseline, during (immediately after 8 weeks) and finally immediately after 12 weeks of training. A total of forty (40) subjects (male = 20 and female = 20) were selected using the purposive sampling technique on the basis of their BMI. Only those whose BMI was 25.5kg/m2 and above were included as subjects in this study. All the selected subjects attended a group aerobic dance class three times per week, on alternate days for durations of 30 to 70 minutes at intensity levels ranging from 60% to 75% HR max. The collected data were analysed using the descriptive statistics and repeated measures ANOVA. An alpha level of 0.05 was used to accept or reject the hypotheses of this study. The findings of this study revealed significant sex-specific reductions in BMI (F = 29.81 < 0.05), RHR (F = 11.41 < 0.05), WHR (F = 51.68 < 0.05) and significant sex-specific improvement in VO2 max (F = 509.30 < 0.05). However, resting systolic and diastolic blood pressures did not show these sex-specific ix modifications. The adopted duration of aerobic dance (12 weeks) and the intensity levels of 60% to 75% HR max used in this study may explain this. The results of this study also revealed significant test by group interactional effects of 12 week aerobic dance on BMI (F = 54.86 < 0.05), WHR (F = 16.12 < 0.05), RHR (F= 34.45 < 0.05), RSBP (F = 13.59 < 0.05), and VO2 max (F = 300.69 < 0.05). However, the results failed to show significant difference between male and female adults in the effects of 12 week aerobic dance on all the selected CVD risk factors. Therefore, to minimize the trauma of cardiovascular disease risk of overweight/obesity, adults should be encouraged to engage in regular low to moderate aerobic dance on alternate days for durations of 30 to 70 minutes
Description
A DISSERTATION SUBMITTED TO THE POSTGRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREEN OF DOCTOR OF PHILOSOPHY (PhD) IN EXERCISE AND SPORTS SCIENCE DEPARTMENT OF PHYSICAL AND HEALTH EDUCATION FACUTY OF EDUCATION AHAMADU BELLO UNIVERSITY ZARIA, NIGERIA 2007
Keywords
EFFECTS,, AEROBIC DANCE,, SELECTED,, CARDIOVASCULAR DISEASE RISK FACTORS,, OVERWEIGHT/OBESE NIGERIAN ADULTS.
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