| چکیده انگلیسی مقاله |
Purpose : We intended to determine predictor variables of anthropometry and training for marathon race time in recreational female runners in order to predict marathon race time for future novice female runners. Methods : Anthropometric characteristics such as body mass, body height, body mass index, circumferences of limbs, thicknesses of skin-folds and body fat as well as training variables such as volume and speed in running training were related to marathon race time using bi- and multi-variate analysis in 29 female runners. Results : The marathoners completed the marathon distance within 251 (26) min, running at a speed of 10.2 (1.1) km/h. Body mass ( r =0.37), body mass index ( r =0.46), the circumferences of thigh ( r =0.51) and calf ( r =0.41), the skin-fold thicknesses of front thigh ( r =0.38) and of medial calf ( r =0.40), the sum of eight skin-folds ( r =0.44) and body fat percentage ( r =0.41) were related to marathon race time. For the variables of training, maximal distance ran per week ( r =-0.38), number of running training sessions per week ( r =-0.46) and the speed of the training sessions ( r =-0.60) were related to marathon race time. In the multi-variate analysis, the circumference of calf ( P =0.02) and the speed of the training sessions ( P =0.0014) were related to marathon race time. Marathon race time might be partially ( r 2 =0.50) predicted by the following equation: Race time (min)=184.4+5.0 x (circumference calf, cm) –11.9 x (speed in running during training, km/h) for recreational female marathoners. Conclusions : Variables of both anthropometry and training were related to marathon race time in recreational female marathoners and cannot be reduced to one single predictor variable. For practical applications, a low circumference of calf and a high running speed in training are associated with a fast marathon race time in recreational female runners . Key Words: Body Fat; Skin-fold; Training; Limb Circumference; Gender; Marathon |
