Since not everyone here is a freak sports / athlete guy like me Ill also say that its great for any maximal lifting effort.. regardless if you are going high rep or 3rm or a 1rm. If you are in tune w/ your body you will notice a difference. Maybe its the last rep going up easier.. or the 1rm just being smoother but if you are someone who knows your body or really know your program and what you should be doing if you add this in the mix you will notice.