EFFECTS OF SPORTS AND SCIENCE HIGH SCHOOL STUDENTS’ SPORTS ACTIVITY LEVELS ON BODY COMPOSITION AND BONE MINERAL DENSITY

Purpose: In this study, effects of sports and science high school students’ sports activity levels on their body composition and bone development level were investigated. Material and Method: A total of 59 participants were voluntarily included in the study in which 29 people were the experimental group from Elazıg Kaya Karakaya Sports High School with a mean age of 17.10±1.25 (years) and 30 people were the control group from Diyarbakır RekabetKurumu High School with a mean age of 17.70±1.67 (years). Sports activity of Sports High school students was found to include (in the first two years 384 hours, a total of 1088 hours in four years) and sports activity of science high school students was found to include ( in the first 2 years 94, a total of 158 hours in four years). Those who had any disease that could have an effect on their bone mineral density and body compositions were not included in the study. Height and weight were measure with standardSecaStadiometre. Body Mass Index (BMI), Basal Metabolic Rate (BMR), Body Fat Percentage (BFP), Body Fat Mass (BFM), Fat-Free Body Mass (FBM), Total Body Water (TBW) , which constitute body composition and are accepted as sub parameters, were measured with Bioelectrical Impedance Analyser (BIA -Tanita BC 418). Bone densitometry device (DEXA; Hologic Discovery 4500 QDR) was used in the measurements of bone mineral density. SPSS 16.0 was used in the process of the raw data obtained and T-Test was applied for independent samples. Findings:HEIGHT, WEIGHT, BMI, BMR, %BFP, BFM, FBM, TBW measured mean values of the Experimental group are 171.62±7.078 (cm), 58.88±8.679 (kg), 19.89±1.745 (kg/m?), 3435.6 ± 2660.55 (kcal), 13.64±2.446 (%),8.100±2.150 (kg), 50.81±7.165 (kg) respectively. HEIGHT, WEIGHT, BMI, BMR, %BFP, BFM, FBM, TBW measured mean values of the Control group are 170.21±8.514 (cm), 59.77±9.749 (kg), 19.63±1.439 (kg/m?), 2362.85 ± 2010.71 (kcal), 13.83±2.556 (%), 8.048±1.708 (kg), 50.245±6.280 (kg), 36.785±4.59 (kg) respectively. It was determined that there was no statistically significant difference between these means of the variables compared (p>0.05). Yet, a statistically significant difference was found (p<0,01) between Bone Mineral Density mean value of the Experimental Group, which was 0.962±.1083 (gr/cm2 ) and BMD mean value of the Control Group, which was 1.171±0.164 (gr/cm2 ). As a result, it was observed in our study that if sports activities that start at an early age are supported with a curriculum including dense sports activity as a part of Ministry of Education, Weekly Course Schedule of Secondary Education, they will have positive effects on peak bone mass formation.