The question of cardio timing (what time of day to do cardio).
- Thread starter dgessler
- Start date
Dr. Lowery: Truthfully, I do cardio in the morning. A thinner, ectomorphic guy looking to harden up shouldn't though. He'd be better served by time under the weights while drinking protein and carbs throughout. I tend to favor fasted treadmill work because I've seen firsthand how much more dramatic fat oxidation can be in this state during lab experiences.
The liver is mostly depleted of stored carbohydrate (glycogen reserves approximate just 90g which keeps us alive at night), there's a natural diurnal release of GH upon rising, and even cortisol is higher upon waking. This latter fact is dangerous for muscle loss but actually facilitates lipolysis (fat breakdown). Admittedly, I've been experimenting with about five grams of glutamine and even about ten grams of protein in this otherwise "fasted" pre-breakfast state. I do fear cortisol and hope to counteract any unnecessary catabolism without interfering with lipolysis...
...I do advocate doing cardio first thing in the morning before eating any carbohydrate meal. If you run or do cardio after training (like I do) I would advocate eating your protein, Branch Chain Amino Acids (BCAAs) and other supplements (including CLA) before doing the cardio, and it will actually further supercharge fat loss while preventing muscle catabolism (wasting)...
...When is the best time of day to do your aerobic exercise? The answer is any time! The most important thing is that you just do it. Continuous cardiovascular exercise, such as walking, jogging, stairclimbing, or cycling, sustained for at least 30 minutes, will burn body fat no matter when you do it. However, if you want to get the maximum benefits possible from every minute you invest in your workouts, then you should consider getting up early and doing cardio before you eat your first meal - even if you're not a "morning person." Early morning aerobic exercise on an empty stomach has three major advantages over exercising later in the day...