Q: What’s your opinion of loosening exercise form at the end of a set to get a few more reps? Like on curls I keep the reps strict for the first six or seven, then I use some upper-body motion to complete two to three more reps. I’m using the 4X method, so the weight [throughout the 4 sets] is only moderate, not heavy. I’m only using momentum to fight the fatigue buildup at the end of the fourth set. Is that okay, or should I keep my reps strict through the entire 4X sequence?

A: Because the poundage is moderate on a 4X sequence, that’s all the more reason to keep it strict all the way through. Momentum will only take the tension off the target muscle. A very SLIGHT form alteration is acceptable, but keep it as strict as possible to the end of the fourth set… [Read more…]