“Should I go heavy… or light and slow?”
That’s how he opened.
I asked, “When you say light and slow, what do you mean?”
He said, “Light weight, like 25 reps, all slow and controlled—safer that way.”
“So the slow and controlled part is why you’d go light.”
“Right.”
“Okay—what would stop you from doing the same slow and controlled reps… with a heavier weight? Keep the control but pick weights that challenge you by reps 6–12.”
He responded partially confused “Heavy can still be slow and controlled?”
“Exactly. Slow belongs to the lowering (eccentric) part. For a squat, you go down smooth for 2–3 seconds, brief pause, then drive up with intent. It’ll be faster than the descent, but still clean. Same idea for presses, rows, RDLs.”
He said, “But I’ve seen people lift heavy and it looks sloppy and out of control.”
“Yes, we want to avoid that! Heavy isn’t a license to get sloppy. Just because the load increases doesn’t mean your reps should speed up or lose control. We want heavy and controlled: same smooth descent, same crisp drive up, same positions. You might look slower at high loads—that’s fine. Your intent is fast, your execution is controlled.”
He asked, “Why not just do 25 slow reps if that’s safer?”
“In a 25-rep set, only the last few reps are truly challenging—the ones that drive most adaptation. If the first 20 reps are easy, there’s not much stimulus. Instead, choose a weight where the hard reps show up around 6–10. You’ll get more productive reps, sooner—still slow and controlled.”
“So how do I implement this?”
“Pick a weight you can own for 6–12 perfect reps.
- Down: 2–3 seconds, smooth and controlled.
- Up: drive with intent (faster than the descent, but never sloppy).
- Stop 1–2 reps before form breaks.
- Next week, add a little weight or 1–2 reps—same tempo, same control.”
He smiled. “Okay, this makes me feel more confident about going heavier.”
– James Pratt