Originally Posted by
carleton
On a related note:
I've heard of weight training with reps according to time as opposed to rep count. Meaning: Do as many squats as you can for 20s as opposed to doing 5 reps to complete 1 set.
Any science or programs around that?
Are you familiar with the Tabata protocol? It's 20s high-intensity, 10s rest, repeat 8x. It can be applied to lots of things, including weight lifting I suppose - and there's some science on its effect on vo2max:
Effects of moderate-intensity endurance and high-intensity intermittent training on anaerobic capacity and VO2max. - PubMed - NCBI ... but if weights are involved they'd have to be pretty low weights in order to be tolerable and the kind of intensity that tabata is about.