Dear Editor,

We would like to thank Dewolf et al. [1] for their interest in our review [2] and for providing additional insights into the effects of belt-speed fluctuations on treadmill running biomechanics. We believe that their commentary offers an interesting explanation for some of the biomechanical differences observed between treadmill and overground running. As also stated in our conclusion, we, therefore, agree with Dewolf et al. [1] that researchers, clinicians and athletes should assess belt-speed fluctuations and take their effects on running biomechanics into consideration.