Running will get me up to about 92% of my max heart rate, for as accurate as that is.
But my heel's sore now so I can't really run.
So how else can I get my heart pumping through exercise?
Bike riding only gets it to a low level of work. Biking up a hill isn't even hitting a medium amount of work. And I don't have any hills.
Jumping rope -- Gets to a medium-low level. Nice enough, but not close to max at all.
Stationary inside exercise bike -- Maybe up to a medium-low level if I'm moving weights.
Treadmill -- Gets up to a high-low level which is pretty good, but it's running. Hurts my heel.
Running in place with high knees -- Gets up to a high-low level. Good, but it's putting pressure on the feet again, toes more than heels though.
I need to measure other things like jumping jack, burpees, etc. Something that might do it.
It's difficult to search for. Heart, rate, max.... That brings up tons of sites about measurement, what heart rate is, etc., but not exercises on actually hitting max heart rate. I was searching for intense exercise... It's easier just to ask.
Medium level for me is starting to breath more, sweating some, feeling like it's some amount of work. Hmm.... Just checked.... What I consider a medium amount is actually 70-80% max heart rate. Below that seems fairly easy. 65-60-55% max rate seems fairly easy.
High is muscles burning, getting nauseous, possibly seeing colors, breathing hard, sweating hard, etc. 87-92% is what I've hit that feels high to me. I've only done that with running though. Even then I hit 94% once and couldn't get it to go any higher. I was thinking the body is the weaker part since things were burning. Let the body adjust and eventually the heart would be the weaker part and have to work more. And then my heel got overused....
Are there any other "intense" exercises? Esp. ones that don't require pounding down on a heel?