I'd expect the average 40 year old who is 75 kg, 15% body fat, and whose heart quickly gets to 155 bpm when on a rowing machine, is probably no stranger to at l

I'd expect the average 40 year old who is 75 kg, 15% body fat, and whose heart quickly gets to 155 bpm when on a rowing machine, is probably no stranger to at least one of push ups, pull ups, or running miles. And they could probably pick up the others without too much bother.