A few days ago, I was between exercises at the gym when I heard one girl tell another girl in passing, "I wish I had arms like yours."
The second girl said, "Thanks!" and continued with her routine. The first girl may not have known this, but the second girl is a personal trainer. At the time she was approached, she was targeting her triceps with a rather formidable dumbbell. She was really straining and struggling to finish, her last repetition a real challenge.
A couple minutes later, I saw the first girl finishing a set on the chest press machine. Her last repetition was as easy as the ones before it. She was using the absolute minimum weight possible. In other words, she was coasting. She wasn't pushing herself in the slightest, which is kinda the point of working out.
My first thought was: she'll never have the arms she wished for.
But now, I realize the error of my ways.
Behold...the Shake Weight.
Ladies, it's time to work out.
"Dynamic Inertia" never looked so sexy.