Been doing medium to light dumbell pullovers at the end of every workout...just like 3 sets of 10 and i have noticed a HUGE difference in my ability to draw air into my lungs when under the stress of a hard set of squats/bench/leg press etc
i feel like these have made a big difference in my strength for such a small investment of time/effort
i pull in as much air as i can and stretch my ribs to the max on the way down, blow out as hard and as long as i can on the way up
really seemed to help me after a few weeks noticed a change, just thought id share