[Silock]

Originally Posted by penguinz

Going Too Low

The best range for muscle growth is 8-12 reps per set. Consistently doing 7 or fewer reps with heavier weights may feed your pride in the gym, but it won’t build as much muscle as moderate reps with moderate weights. A recent study found that when subjects used a weight that allowed them to complete 25-30 reps per set, they increased muscle protein synthesis (the process that leads to muscle growth) by 60% more than when they did sets with a weight that limited them to 4 reps. What’s more, going too heavy often leads to truncated reps. This is especially true of leg presses. It’s likely you can use more metal with this exercise than any other.

This stokes your ego, and because the guy before you used 900 for six half-reps instead of 600 for 12 full reps, you want to crank out 900-pound partials, too. Resist this urge. More reps and better form with a lighter weight will build more mass.

Research

A recent study from Italy found that when subjects did dumbbell shoulder presses with half-reps or three-quarter reps, they did not use nearly as much deltoid muscle fibers as they did when they did full reps. Using more muscle fibers during an exercise will make that muscle bigger. Even when training for power, the fewer reps you do, the harder it is to eke out another one and thus make consistent gains.
Solutions

• Do movements from full stretches to full contractions. Carefully control the negative half of reps.
• Keep the reps of most sets in the 8-12 range.
• Focus on your muscles contracting, not the weight moving.

http://www.simplyshredded.com/gym-cl...ix-them-2.html

Muscle protein synthesis is not necessarily the same as muscle growth.

Carry on.