The standard biceps curl is hardest at the mid-range, where the lever arm is the longest. But for variety we can change that, making the top or peak contraction the toughest part of the movement.
Lean forward at a 45-degree angle.
Don't drop the elbows down. Keep the upper arm in line with the body.
Perform curls in this position, squeezing hard at the top.
Bodybuilding guru Scott Abel says that training for hypertrophy, size, thickness, density, and shape is not the same as strength training. If the question is how to gain unadulterated muscle mass, is hybrid training the answer?