Credit:Christopher Nuzzaco / Photoxpress

Imagine losing fat and gaining muscle at the same time. It is very difficult, and not a typical result for most people - but in some situations it can be done.

Respected fitness author Tom Venuto is about to release his new book - The Holy Grail Body Transformation Program which outlays a nutrition and training regime to give clients the best chance at achieving fat loss and muscle gain.

We've been given a sneak peek -- and permission to reproduce the results of some of his latest research into concurrent cardio and strength training.


1. If your primary goal is muscle gain with a secondary goal of fat loss, limit yourself to 3 days per week of cardio.
Research says that moderate amounts of cardio can actually help increase muscle growth. The key is to keep it to 2-3 days per week. Let the weight training and nutritional manipulation do the rest.

2. If your primary goal is fat loss with a secondary goal of concurrent muscle gain, start with 3 days of cardio.
Increase conservatively. When your primary goal is fat loss, longer and more frequent cardio sessions are helpful for increasing the weekly caloric deficit and burning fat faster. However, if your secondary goal is muscle gain, be alert to the impact this may have on strength and muscle retention. Increase cardio conservatively and use mostly nutritional manipulation to get the deficit you need.

3. If your goal is focused fat loss, higher cardio frequencies are helpful and sometimes necessary.
Bodybuilders typically do cardio 4-7 times per week during precontest training in addition to strength training as often as 4- 5 times per week. During any cutting program, gaining strength and muscle mass are no longer priorities, as the goal switches to getting lean while maintaining muscle. As long as you maintain your LBM [Lean Body Mass], the higher cardio frequency is not only acceptable, it is ideal for helping you get leaner faster.

4. Choose a cardio duration between 20 and 50 minutes.
You can start on the low end and increase duration or intensity based on your weekly progress. The duration will be dictated largely by your intensity level. The longer sessions will be low to moderate in intensity. The shorter sessions may be higher in intensity and could be performed as interval training (HIIT).

5. Use running or high impact cardio sparingly or not at all
Choose any type of cardio you want. However, keep in mind that the greatest area for concurrent training interference effects is in the legs. Cardio with high intensity, high impact or a strong eccentric component may place additional stress on the lower body and on your overall recovery capacity. Running has been shown to be particularly taxing on the lower body and is believed to increase risk of muscle loss more than other forms of cardio.

6. Restrict intense cardio to 2 days per week, 3 days max if you have good recovery ability
High intensity interval training (HIIT) has become popular as an effective and time-efficient way to do cardio, but too much intense cardio on top of intense weight training can easily lead to over training. I recommend no more than 2-3 HIIT sessions per week when concurrently doing 3 or more days per week of high intensity strength training. If you do additional cardio, make it lower intensity training or light activity like casual walking, which may even serve as active recovery while burning some calories.

7. Do cardio and weights separated into 2 sessions, if possible
If you do cardio and weight training in the same day, separating them into two sessions, at least 8 hours apart, may help you enhance recovery and avoid some of the residual fatigue where one interferes with the other. Be especially certain that your legs are recovering completely and that fatigue from cardio doesn't interfere with your weight training workouts, especially on leg day.

8. Do weights first and cardio second
If you do cardio and weights in the same session, always do the weights first and cardio second. Endurance athletes are the exception to this rule, but when strength and muscle increase are primary goals, the strength training should go first.

Tom Venuto is a natural bodybuilder, nutrition researcher and freelance writer. Tom holds a bachelor of science degree in Adult health/fitness (exercise science) and is a long time member of the American College of Sports Medicine and the National Strength and Conditioning Association.

This post is copyright 2010, and is reproduced with permission. 

Reprinted from Diet-Blog