Eccentric-focused strength training, which emphasizes the lowering phase of exercises, is gaining mainstream traction following several recent studies showing it produces faster muscle growth and strength gains than traditional training methods. The approach involves slowing down the negative portion of each rep to three to five seconds while lifting the weight normally.
Research from Edith Cowan University in Australia found that participants who performed only the eccentric phase of bicep curls three times per week gained more muscle and strength than those who performed full range-of-motion curls with the same volume. The eccentric-only group also reported less muscle soreness after the initial adaptation period.
Fitness trainers are now incorporating eccentric protocols into client programs at an increasing rate. Popular applications include slow negative pull-ups, tempo squats with a four-second descent, and Nordic hamstring curls, which have become a staple in both physical therapy and athletic performance programs.
