So everyone says "you should be sweating when you get on the line" but that's not quite scientific enough for us here at LR.com, what would a good % of max HR be for right before the start of a race? if you need a specific race lets go with 1500 and 5k...
Whatever HR works for you.
Nervousness and tension would play a huge role. There's no right answer... some people get really calm, some are naturally antsy. I'd suggest not warming up or racing with a heart rate monitor. You should practice running by 'feel' without looking at it. Maybe do some runs with it off (easy, safe at first so you don't screw up too badly), to get used to racing without it on.
Ultramiler wrote:I'd suggest not warming up or racing with a heart rate monitor.
I agree with this nearly 100%. I like to wear mine for races to collect data, but I NEVER look at the HR reading during a race. There's (almost always) ZERO value in knowing your HR during a race in real time. However, the readings can give you some interesting feedback over time, after the fact.
I've looked at my HR standing at the start line, and it's usually through the roof, even if I'm very relaxed. Means nothing, except I'm keyed up, waiting for the gun.