Don’t Hold Your Breath When You Lift

So you’re under the bar, the weight’s heavy, and your instinct is to lock everything down — including your breath. It feels like holding it gives you more power. And honestly? It kind of does. But there’s a real cost to that, especially if you’re not an experienced lifter doing it intentionally.

When you hold your breath and brace hard during a lift, you’re doing something called the Valsalva maneuver. Research shows that performing the Valsalva maneuver exaggerates the blood pressure response to resistance exercise. That’s not a small thing. Your blood pressure can swing dramatically during that breath-hold — spiking up during the effort, then dropping fast when you exhale and release the pressure. That drop is part of why people sometimes feel dizzy or light-headed after a heavy set. In rare cases, that’s what leads to passing out.

Now here’s where it gets nuanced. A 2010 study found that the hold-breath technique at moderate resistance produced only minimal — and statistically insignificant — elevations in heart rate and blood pressure and appeared safe for exercises like the chest press and leg press. So it’s not like every breath-hold is a medical emergency waiting to happen. At moderate weights, the risk is pretty low for healthy people.

But here’s the thing — most of the danger lives at the extremes. Max-effort lifts, heavy loads, and people who already have high blood pressure or heart concerns are a different story. That’s where the breath-hold technique can become genuinely risky.

The safer, smarter default for most people — especially beginners — is controlled breathing. Exhale during the hard part (the lift, the push, the pull), inhale on the way back down. It’s not glamorous advice, but it keeps your blood pressure response more stable and reduces the stress on your cardiovascular system. Research supports this: controlled breathing tends to produce lower blood pressure responses compared to breath-holding, though individual results can vary.

The Valsalva maneuver is a real technique that competitive powerlifters and experienced athletes use deliberately to create trunk stability for maximal lifts. But they’re doing it with proper coaching, usually not on every single set, and often with medical awareness of their own health. If you’re just getting into lifting, that’s not where you need to be yet.

So the breathing rule is simple: don’t hold your breath as a default. Breathe with the movement. Learn that pattern first. If you’re eventually training at an elite level and want to explore breath-hold techniques for maximal efforts, do it with a real coach — not alone in your garage at 11pm.