In a nutshell I lift year round and MTB in the better weather. I lift to make gains in mass and strength. Been having problems with my hands going numb lately and it turns out it is my Ulnar nerves getting irritated in my elbows and chest tie-ins. My orthopedic surgeon and physical trainer told me not to work chest or shoulders for a month, as well as anti-inflamatories(sp) and therapy etc. Anywho, I've lightened up my routines in the gym and am trying to bring my endurance up for biking. So I've dropped a little weight and take shorter breaks between sets, about 30 seconds, whereas I used to take about 1-2 minutes cuz I was lifting heavy (for me). So my workouts are about 15 mins shorter that usual. So is this going to help my endurance or hinder it? I'm lifting lighter and taking shorter breaks, more of an endurance workout. But I'm not lifting as long, so is this shorter time going to hurt my endurance since I'm not working out as long?