الفهرس 
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Abstract
An excess in the body fat was associated with elevated blood pressure and cardiovascular diseases. Hypertension and obesity may have their start of occurrence during adolescence. The target of the study is to evaluate the anthropometric differences and prevalence of hypertension between male and female students and the effect of physical activity at El-minia University, Egypt and to know the association between anthropometric measurements with blood pressure. A cross sectional study was done with a sample of 5572 college students (3276 Boys and 2296 girls) studying at El-minia University, El-minia governorate, Arab Republic of Egypt, of age between 17-19 years old. Anthropometric data was collected, including weight, stature, midarm, midchest, waist, hip circumferences, and skinfold thickness of biceps, triceps, subscapular, abdominal and suprailiac regions. Body mass index (BMI), waist-hip ratio (WHR) and waist-stature ratio (WSR) were calculated. All anthropometric parameters indicating body adiposity were higher in female than male students, except for the mean BMI (males: 23.4±3.9 kg/m2 and females: 23±3.8 kg/m2) and obesity level (15.98% of male subjects and 10.5% of females were overweight or obese according to BMI), with significant level (p<0.05). The means of both systolic and diastolic blood pressure were higher in male students (mean of SBP= 118.1±10 mmHg, DBP= 76.1±7.9 mmHg), than female students (SBP= 110.9±10.3 mmHg, DBP= 71.1±8 mmHg).
Fat percentage was higher in female (26.2%±4.6, according to BMI and 24.3%±10.4, according to sum of three skinfold; triceps, abdominal and supra-iliac regions) than males (12%±6.5 and 14.5%±2.6, respectively). Waist hip ratio (WHR) was of fair correlation with both systolic and diastolic blood pressure among males but of weak correlation among females. Waist stature ratio (WSR) was of fair correlation among both sex groups. BMI was found to be the most stable value of high numbers of fair correlation with blood pressure among the studied subjects.
According to physical activity, physical education students were found to have higher means of both systolic and diastolic blood pressure (mean of SBP= 118.6±8 mmHg, DBP= 76.2±6.7 mmHg) than the other non athletic students (mean of SBP= 114.9±10 mmHg, DBP= 73.8±8.6 mmHg) with no statistically significant difference between BMI of both teams, despite of all measurements of skinfold thickness were higher in non athletic group.
According to age groups, rising patterns were noticed of means of both systolic and diastolic blood pressure, abdominal and suprailiac skinfold thickness, abdominal and hip circumferences, with a significant difference between the three age groups (17, 18, 19 years old).