A field tool for the aerobic power evaluation of middle-aged female recreational runners.

This study used time to exhaustion (TTE) to predict V̇O in female recreational master runners. Forty-two middle-aged women (mean = 40.5 ± 5.9 years) who had trained for recreational running performed two Track Tests in the facilities of the University of Barcelona (Spain). The first was performed on a treadmill (t), the second, on an athletics track (field: f). After measuring TTE and V̇O on the treadmill, a first-order equation was obtained to estimate fV̇O from fTTE. No significant difference was observed between the estimated fV̇O (46.5 ± 2.9 mL·kg·min) and the measured tV̇O (46.2 ± 5.3), with a mean value of the absolute differences of less than 8% of the tV̇O average. High agreement between the two V̇O values was also evident, as shown by the low bias of the differences and the Bland-Altman plot. The equation obtained is of interest to evaluate performance in middle-aged female recreational runners. It will allow coaches and runners to set running paces for training and could be used in training routines to determine improvements after a training program. Moreover, these tools could be used in the field to assess the physical fitness of middle-aged women, in efforts to preserve their health and physical function.