Technical Note on Using the Movement Velocity to Estimate the Relative Load in Resistance Exercises - Letter to the Editor.

The studies by Sanchez-Medina et al. ( Sports Medicine International Open , 1 (02), E80-E88. 2017) and Gonzalez-Badillo and Sanchez-Medina ( Int J Sports Med, 31 , 347-52. 2010) attempted to provide a good estimation of relative load from movement velocity measured in bench press and full squat. However, both aforementioned studies contain methodological issues concerning the predicted equations used to address load-velocity relationship that coaches should be aware of.