1st thing I look at when evaluating a sprint is the initial projection off the line When the down hand rises above the sensor, the body needs to project horizontally through an aggressive initial push from both feet. From looking at data from NFL Combine 2018, the top performers (sub 4.4) all went from 3 pt to “toe off” position in 0.3 seconds or faster Ralph Mann determined that the world’s fastest sprinters reach this point in about 0.28 seconds at a total body & torso angle of 35 degrees Interesting to see how similar the fastest athletes in the world are in comparison to the fastest NFL Athletes here... #NFLcombine2019 #Speedkills #40speed #40yarddash #SpeedMechanics mambasportsacademy