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