I think you missed that stated I do a few warmup sets for all of my main lifts and that I lift heavy (5 rep max, sometimes 3rm and 1rm depending on lift and day).  However, I believe most people do too many warmup sets which limits their working set and slows progress and gains. Doing 3-4 working sets in reasonable increments is just fine.  I know people that do 20 total sets per &quot;body part&quot;, only 3-5 of them that are working sets (because that&#x27;s what the bodybuilding magazine reported &lt;today&#x27;s Mr. Universe candidate) said they lift).<p>The running thing seems less likely to be true though.  I wouldn&#x27;t put my bed in a field, sleep 8 hours, hop out and go full out on a sprint, but I&#x27;m not going to do 20 minutes of stretching or ride a bike before doing a few sets of sprints.<p>Long distance warm ups seem even less likely to be needed than Sprints.<p>And, for what it&#x27;s worth, I&#x27;ve done &quot;max effort&quot; deadlifts without warming up once or twice.  Mostly to show off, but I had lifted those weights before (that day in one case, a couple days back in the other), and didn&#x27;t have any issues.  I could have been hurt, I guess, so my &#x27;anecdata&#x27; is no evidence, but even so, not warming up isn&#x27;t a guarantee of injury either.