I'll answer here just because I love having a thread all for me!! But PM's are perfectly acceptable.
I think the post you are refering to was about maximising chest activation? If so;
Benching isn't just about chest, your arms (mostly your triceps), your shoulders (mostly anterior delts), and pecs are all involved. There are also other muscles involved such as lats, but lets not go there.
So if you are naturally weak in one of those areas you will have a sticking point and develop more in the other areas. Strong delts, will see more development there while leaving chest and possibly triceps lagging. Also this means a low or high sticking point where chest and triceps respectively are more involved in the movement of benching.
My suggestion came from the idea of pulling the bar apart to promote tricep activation that Westside barbell practices. If you grasp the bar and try to push the bar together you are activating your chest (just like in flys) and when you bench doing this you are concentrating effort onto the pecs. This isn't isolation, but it does promote the pecs. Another way of hitting the pecs more is through static stretching. Static stretching 'weakens' the stretched muscle so that it won't perform at its best. So if you stretch your delts and triceps before benching you will have to use more chest. I'm currently doing something similar to help with my hammys by deactivating my glutes.
Now CNS, or central nervous system. WHen you lift you are recruiting muscles via the cns activation of higher threshold motor units. If you usually lift in higher rep ranges then the mind will recruit enough fibers to lift the weight and then recruit more as some tire to finish the lift, so less higher motor units. With low rep heavy weight stuff you can't do this. Your cns has to fire from the outset to get all the fibers from the start, hence why you can't do many reps. You get this by training regularly for max efforts (singles doubles and triples) at or near your 1RM.
When you don't lift regularly near your max then you won't be able to recruit enough fibers to perform the work. So your calculated one rep max says you should be able to bench 350lbs so you should be able to do 4-5 with 325-330 but you manage 2 shows that you are not recruiting enough higher threshold motor units.
Hope this helps. If I've missed anything or anyone else wants to jump in feel free. |