OK - I've been doing the Weight Watchers program and exercissing for 8 months. When I'm doing cardio, my heart rate is 90% of max - what I would consider vigorous. However, my perceived level of exertion is moderate - I'm breathing heavily, but can still talk (I attribute this to my greatly improved fitness level).
Activity POints based on the "moderate" or the "high" level? I just don't see how I can get "more vigorous" without going into an unsafe heart rate!
