October 30, 2006

Exercise Selection for a Complete Muscle Development

When designing your training program, you are faced with the decision of choosing a set of exercises for properly training each muscle group. There are a great amount of different exercises (probably several hundred), thus complicating this selection. This post presents some issues you must take into account for performing an adequate exercise selection.

Exercises can be classified depending of the type of movement performed. On one side, compound exercises involve two or more joint movements and thus stress several muscle groups. On the other side, isolation exercises involve only one joint movement at a time, stressing only one specific muscle. Compound exercises are superior to isolation in building muscle mass. However, although you can build plenty of mass using only compound exercises, isolation work is mandatory for a complete muscle development, because it allows emphasizing on every muscle striation. Your routine for a given muscle should include movements that hit that muscle in different ways and from different angles using both compound and isolation movements. That is why you should include 2-3 exercises when you work each muscle.

Some movements offer the possibility of being performed using free weights (barbell and dumbbells) or machines. Free weights provide a more complete work and are better at preventing muscle imbalances, since they involve stabilizer muscles more than machines. Therefore, the basis of your routine should be using free weights. Machines have to be minimized except of some exceptions like the cable station and the leg extension, but don't look down on machines because they can be used to introduce some variety occasionally.

Your selection should avoid dangerous exercises that can lead you to injury. There are some popular exercises (e.g. behind-the-neck pulldown or behind-the-neck shoulder press) that involve movements with wrong biomechanics, being a chance to injury yourself. In a future post, I’ll go deeper in the trouble with these exercises.

However, your exercise selection should not be immovable. The muscles grow because they accustom themselves to the stress being put onto them. If you train a muscle always in the same way, your progress will slow, and possibly even halt because your body adapts to the motion, and no longer needs to build new muscle to do that motion. The key is varying your workouts every 4-6 weeks by altering one or more factors (i.e. number of reps, sets, tempo, exercise selection, etc.).

For supporting your exercise selection process, you can find a comprehensive exercise directory in the “Exercise Instruction & Kinesiology” section of ExRx.net site. Each exercise description contains the preparation and execution instructions (demonstrated with an animated gif), the involved muscles and the exercise classification (compound/isolation, push/pull, etc.). The Bodybuilding.com site provides another complete exercise directory in its “Exercise Guides” section, including video guides for describing the exercises correct execution.

2 comments:

Anonymous said...

I just read your post and is amazing and very helpful. My question is about a special case, myself. I can´t do weights with my right leg, after a messy accident, I have a very bad knee and a moderate leg atrophy plus extention and flexion restriction.
I can´t hold my own weight just with the injured leg. The accident was 22 years ago, so this is chronic and waiting for a total knee replacement in the future. I love weightlifting and have a pretty good upper body development, bur would love to improve my lower body musculature.
Can you give me some advise? Thanks.
My email is criseye@yahoo.com.

George said...

First of all, thanks for your interest in my blog.

With respect to your question, your first step should be contacting a physician for a complete assessment about your restriccions for training with weights. He will delimitate what kind of movements you can do, and will recommend you a set of exercises that can be done securely in your conditions, probably including those not putting your knee under excessive pressure (e.g. leg extensions)

I hope hearing from you