Interesting.. I feel like I've definitely injured myself from not warming up enough. I actually don't even see how you can sprint at 100% when you are cold. Th

Interesting.. I feel like I've definitely injured myself from not warming up enough. I actually don't even see how you can sprint at 100% when you are cold. That's not to say I don't believe but that I wonder if there is something more nuanced which explains the differences in our experiences. If you don't mind me asking, what kinds of sprinting do you do and how fast/fit/flexible are you? Your evolutionary point makes sense but for example, my cats do stretch whenever they wake up. I imagine it's not necessary for them to stretch before moving but by stretching every time they remain very flexible. Kids for example don't really need to warm up and seem to have no trouble running right away, but they also are way more flexible than adults typically are so I wonder if that has something to do with it..