[i]Originally posted by ktolbert[/i]
i think the arms stuff is again a scientists thing… the only thing Mann really says is that it wasn't a **critical factor** that seperated elite vs. sub-elite sprinters…. so it's like tryind to find significgance at the .05 level….
In general, I agree with him that the arm swing is probably way too overcoached and is given too much credit for sucess. I don't dispute his point that it won't be a differentiating factor between elite and sub-elite sprinters. What I disagree with is that he only credits (to my understanding) the arm swing for balance. My understanding is that he gives no credit to the arms for lift forces which has been found to be a role of the arm swing by Hinrichs and also verified by some of my own testing using force platforms.
EMG can be collected at high speed several ways. In fact, I just collected on someone at 24 mph (obviously on a high speed treadmill). You can use fine wire electrode insertion into the muscle belly and then tape down the external portion of the wire; you can have electrodes which transmit via radio signal to a wireless reciever; you can have a portable EMG recorder which the person wears when they run; or you can have them run on a treadmill and carefully suspend wires from the ceiling.