The 4 Minute Workout: Too Good to Be True? | Psychology Today 2013年7月16日 - There's no way you can get out of the gym in under 20 minutes (much less 4) and train those quads, pecs, abs, and other major muscle groups ...
4 Minute Abs Than Traditional Exercise In Just 4 Minutes A Day! ... produced based off true life stories and proven methods that help shed body fat and get lean, toned abs.
