There are some movements that only men can do, or women. There are some moves only short people can do, or people under 110 pounds, or over six feet. Burpees aren't one of them.
The Iron Cross is an example of an exercise that is not for everyone. There are many others, often it is a matter of leverage.
Regarding Burpees: If you have large frontal protuberances you can squat with your knees outside of your shoulders rather than against your chest. this requires a bit more hip mobility but is actually better ergo for squatting anyway. If they are sooooo large... you can do your pushups on boxes or paralettes so that at least you can get the wrist to shoulder thing, which is what you are looking for anyway.
One of the most important things about burpees, is to keep the lumbar extended as much as possible throughout the move, this is easier with the knees wider. Some folks can tolerate more lumbar flexion than others, but keeping a tight core and shoulders back is pretty important .
I'll post a link to som good ones for referance