blaronn said:I have read many times that while warming up for a race, especially for a short race, several hard efforts should be included to properly prepare the legs, lungs, and heart.
On the other hand, I frequently read that we all have a limited number of "matches" to burn during a race, and that we should go to great lengths to avoid expending any unnecessary energy.
Don't these two ideas conflict? If the latter is accurate, shouldn't our warmups always be at an easy pace so as to not use up our limited store of energy?
Depending on age, physical condition and genetics, it can take some time to get the aerobic system up to full operating capacity. The most effective warmup will be the one that brings the aerobic systems fully on-line without dipping into anaerobic reserves.
If you know your aerobic threshold, the best warmup would be one that slowly works up to that level of power and or heart rate. If you're young, such a warmup could take five minutes, but as you age, it will take longer and longer. Hard or explosive efforts should be avoided during a warmup as all they will do is waste stored resouces that could be called upon later during competition.
Caveat: I'm not a doctor or physiologist. I base the above opinions solely on my own experience and observations in training and racing over many years. I could be totally full of [censored].