Originally Posted by Pete Gordon
I"m not really sure what to say. The concept / practice that is promoted is allowing the bar to follow as much of a straight line as possible...while still allowing a 'hook' type of path. Jumping backwards makes the top part of the hook longer..meaning more distance is covered, jumping forward means the top part of the hook is...quite thin.
I'm not quite sure that I agree with this, Pete.
I'm no expert, but I'm of the opinion and understanding that manipulating your lift / pull so that it follows as straight line as possible is bad (that's the impression that you're giving me that you're trying to say, I apologise if this isn't correct or accurate). That's what basic mechanics say is best in terms of efficiency, which is fine if you're a machine with a single joint or plane of motion to move around, but we as humans are not a machine designed to lift maximal weights (as our body has not evolved simply for sport/weightlifting performance). The concept of the S pull is based upon the premise of achieving adequate muscle tension in the correct positions/at the correct times, while most importantly maintaining a correct combined centre of gravity (CCOG) of the barbell/body unit over the feet. Thus, jumping forward is a result of an issue somewhere in the pull (whatever it may be), causing the CCOG to be more forward than it should be, forcing you to jump forward to catch it.
Obviously some lifters lift better jumping forward, some backwards, and some none at all, all to various degrees... But again I am of the opinion that optimal pulls necessitate no jump forward or back, next to this a jump slightly backward is best (as some athletes employ a slightly S
pull), and lastly is a jump forward.
Obviously this is my opinion, and others will have theirs, but just thought I'd share...
I look forward to any response