(Bangsbo et al., 2006). Therefore, other field tests may also be important for tracking changes in fitness variables that are related to soccer. The Yo-Yo Intermittent Recovery Test has been shown to relate more

strongly to specific aspects of soccer performance (e.g., high intensity running during selleck chemical a game) compared to VO2max (Bangsbo et al., 2008; Krustrup et al., 2003). However, assessing a player’s VO2max certainly has value, but due to the results of the current study practitioners should consider other tests when predicting aerobic power in field settings. For example, the 20-m shuttle run test and the 20-m square shuttle run test revealed SEE values of 2.97 ml·kg−1·min−1 (6.7% of observed VO2max) and 2.39 ml·kg−1·min−1 (5.4% of observed VO2max), respectively, in another group of female collegiate soccer players, which were quite lower compared to the SEE values of the current study (Green et al., 2013). It should be noted that the investigators of the study did not have

control over the training program. This could be considered a limitation since the training load could not be quantified hence examining the effects of the exercise program on changes in VO2max was difficult. However, the primary objective of the study was to determine the accuracy of the HRindex Method for predicting changes in VO2max. Therefore, not quantifying the training load of the exercise program did not influence the study’s findings. In conclusion, this study sought to determine if the HRindex Method was suitable for tracking changes in VO2max in a group of female collegiate soccer players following an 8-week endurance training program. To perform this method, all that is required is an exercise ergometer, a method of measuring the HR, and a subject willing to perform a maximal exercise test. It is because of this simplicity that the HRindex Method could be attractive for estimating VO2max in field settings among athletes.

However, the results of this study indicated that the HRindex was not valid in tracking changes in VO2max following training, and resulted in wide individual prediction error at the pre and post-training measurement periods in a group of collegiate female soccer athletes. Therefore, sports practitioners who work with this population should consider other established Carfilzomib field methods for tracking changes in VO2max following a period of endurance training. Acknowledgments The authors would like to thank the study’s subjects for their participation, Nik Chamberlain for his assistance with data collection, and Dr. Henry N. Williford for his continued support of our research.

Pyoderma gangrenosum (PG) is a rare dermatological condition that was first described by Brocq, a French dermatologist, in 1916 [1].