Is this enough resistance exercise? (Disclaimer: Planet Fitness)
Okay, so I accept that I need resistance exercise of some sort, but don't really know what is sufficient. I am female, will be 60 in October, and currently weigh 141 (5'4"). I have been doing the 30 minute circuit at PF, minus the cardio portions, so just the 10 machines. I am doing 25 continuous reps on each, at the…
