Predictor Variables for Marathon Race Time in Recreational Female Runners

How to Cite:Wiebke SchmidBeat KnechtlePatrizia KnechtleUrsula BarandunChristoph Alexander RstThomas RosemannRomuald Leperset al.Predictor Variables for Marathon Race Time in Recreational Female Runners.Asian J Sports Med.3(2):34704.https://doi.org/10.5812/asjsm.34704.

Abstract

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 (r²=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.

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Author(s):

Wiebke Schmid:[PubMed][Scholar]
Beat Knechtle:[PubMed][Scholar]
Patrizia Knechtle:[PubMed][Scholar]
Ursula Barandun:[PubMed][Scholar]
Christoph Alexander Rst:[PubMed][Scholar]
Thomas Rosemann:[PubMed][Scholar]
Romuald Lepers:[PubMed][Scholar]