Burn Intervals was super crazy, it was 2-3 minutes of intense cardio followed by 2-3 minutes of muscle endurance, so basically just when I felt like I was panting and couldn't breathe it switched to muscle, and then when my muscles were burning, it switched back. Wow. I feel great though, and I can't wait to do Burn Circuit 3 tomorrow, it'll be a
(
Read more... )