"Strength is built by tensing the muscles harder, not by exhausting them with endless reps."
-Pavel Tsatsouline, former Russian Spetznaz instructor
"Maximum reps don't build strength, but maximum contraction does."
-Christopher Sommer, coach of U.S. olympic gymnasts
Yesterday in class I introduced the concept of Time Under Tension, or TUT. Essentially, the brain doesn't know how many reps you're doing, but it does know how long the muscle has been under tension, and will stimulate recovery hormones accordingly.
We also talked about "irradiation," or recruiting the muscles all throughout the body to help with our movements. In other words, the pushup is a full-body movement, not just chest and arms. When practicing your pushups(you ARE practicing, right?), tighten the whole body, do a set of 3-5 quality reps, and rest.
What do I mean by quality? Body straight, tight all the way from head to toes. 2 seconds to lower, 1 second hold, 2 seconds up, 1 second hold. Each rep should take 6 seconds, so a 5-rep set will take 30 seconds, for a TUT of 30.
Here's how the body responds to various TUTs:
Up to 20 seconds: Strength gains
Between 20-40 seconds: Strength + Hypertrophy(muscle growth)
Longer than 40 seconds: Hypertrophy, very little Strength
So, our 30 second, 5-rep set of pushups gives us solid strength gains, and a little muscle growth.
Now get practicing! :)