I am wondering how much stamina or endurance in terms of cardiovascular activity can benefit your strength training workouts? I haven't done a strict cardio workout for a long time, and thus I am quite out of shape compared to my basketball playing days. Lately I feel my workouts suffer because I simply get out of breath versus quitting due to muscle failure. This is mostly true in my higher rep workouts such as tricep work, bicep work, dips, and squats.
So, how much do you think this actually affects strength training workouts?