The purpose of this study was to determine the effects of heredity On the body composition And cardiorespiratory fitness of parents and Children.Thus body mass index(BMI), Waist-to-height ratio(WHR), Waist-to-hip(WSR), Percent of Subcutaneous fat,and VO2max 30 family members of Neishabur City with range of height fathers: :171.60 ± 6.61 cm, weight :73.13 ± 9.25 kg, and Body Mass Index( BMI):24.9 ± 3.07 kg/m2.and range of height in Mothers: 160.06 ± 6.30 cm, weight :67.46 ± 9.62 kg, and Body Mass Index( BMI):26.28 ± 3.35 kg/m2, and range of height in Girls: 152.96 ± 12.92 cm, weight :66.46 ± 12.39 kg, and Body Mass Index( BMI):22.06 ± 5.47 kg/m2.was measured,The subjects were selected using purposive and convenience sampling. Pearson correlation and Correlation between the two variables was applied for data analysis. The results of Pearson correlation and Correlation between the two variables revealed:there are a significant correlation between the Height of tall girls with fathers (r= 0.059 ).and there are a significant correlation between the Height of tall girls with Mothers (r= 0.3). The results of Pearson correlation and Correlation between the two variables revealed:there are a significant correlation between the weight of fathers with his girls(r=0.04)and there are a significant correlation between the weight of Mothers with her girls(r=0.52) The results of Pearson correlation and Correlation between the two variables revealed:there are a significant correlation between the Body Mass Index of fathers and mothers with his girls(r=0.38)and there are a significant correlation between the weight of Mothers with her girls(r=0.48).The results of Pearson correlation and Correlation between the two variables revealed:there are a significant correlation between the VO2max of fathers with his girls(r=0.46)and there are a significant correlation between the VO2max of Mothers with her girls(r=0.52) The results of Pearson correlation and Correlation between the two variables revealed:there are a no significant correlation between the Waist-to-height ratio(WHR) of fathers with his girls(r=0.21)and there are a significant correlation between the Waist-to-height ratio(WHR) of Mothers with her girls(r=0.007). The results of Pearson correlation and Correlation between the two variables revealed:there are a significant correlation between the Waist-to-hip(WSR) of fathers with his girls(r=0.145)and there are a significant correlation between the Waist-to-hip(WSR) of Mothers with her girls(r=0.289). The results show that a significant correlation between the Body fat of fathers with his girls(r=0.08)and there are a significant correlation between the Body fat of Mothers with her girls(r=0.013).The results of the present research showed that Genetics Factors may play an important role in body composition And cardiorespiratory fitness of parents and his/here Children,and suggest that Environmental factors can be a more significant than heredity Parameters.
