Breathing During Training: The Invisible Strength Thief in the Gym

Beside him, the trainer counts calmly: “Two more… and breathe.” The cue arrives too late. The bar is shaking, his shoulders are trembling and his face has turned bright red. He gives a small shake of the head, followed by that familiar laugh which means: “It’s fine, no problem.” But it is not fine. In the studio next door, a woman holds her breath during a plank as though her life depends on it – until she collapses after 15 seconds and drops onto the mat in frustration. You can tell there was more in her. Something unseen is holding her back from within.

The invisible strength thief in the gym

We all know that point when a weight suddenly feels twice as heavy as it did in the previous set. Your muscles are burning, your hands begin to shake and your mind is repeating only one thing: “Keep going.” In that split second, the body often forgets the simple reflex that would make everything easier: breathing. Instead of taking in air, the chest tightens, the stomach becomes rigid and the jaw clenches. The rep feels punishing, even though you would normally manage it comfortably.

Many people do not realise that they are unconsciously holding their breath while training. It can happen during a smooth spell on the cross trainer, on the final press-up or while deadlifting in your own living room. Each time, it drains strength that was actually available. From the outside, it may look like someone is “too weak”; internally, it is more a case of being “badly organised”. This is where the quiet sabotage of your performance begins.

A sports scientist once told me about a performance assessment involving recreational athletes. They were asked to do weighted squats, first in their usual way and then using a prescribed breathing technique – inhaling during preparation and exhaling forcefully on the way up. The results were almost ridiculously clear: with planned breathing, many immediately completed two to four more repetitions. One participant in her mid-forties was completely surprised: “I thought I was just weak in my legs.” She was not weak. She had simply been regularly cutting off her own power supply.

When you hold your breath, you trap your own energy as if it were inside an overly tight corset. Your heart rate rises sharply, as does your blood pressure, while your muscles receive less oxygen at the very time your body needs it most. Those few seconds of breath-holding can feel like extra power, but they are often just an unthinking attempt to push through. The cost is that the body enters emergency mode sooner, gives up earlier and, along the way, learns a movement pattern that is more harmful than helpful over time. That mismatch between “I want to” and “my body is resisting” quietly consumes motivation from one workout to the next.

How to breathe properly again during training

The easiest exercise does not start at the weights bench but standing upright. Stand tall, let your shoulders drop and place one hand on your stomach. Breathe in through your nose so that your hand moves gently forwards. Then breathe out slowly through your mouth, as if you were breathing onto a windowpane. Do this for two or three rounds before you even touch a weight. It may sound basic, but it is your reset button before every session. It tells your body: “We are working, but we are not suffocating.”

For the workout itself, one simple rule helps: exhale under effort, inhale during release. Bench press? Breathe in as the bar lowers towards your chest, then breathe out as you press it upwards. Squats? Inhale at the top, lower yourself, and exhale as you rise. It becomes a small internal wave carrying every repetition. On paper, it seems straightforward; in real life, it often falls apart on the third, fourth or fifth rep. Let’s be honest: nobody does it perfectly every day.

Many people have been taught to grit their teeth rather than breathe into their stomach. That is understandable if you grew up with school PE, drills and the message to “try harder”. It is hardly surprising, then, that you slip back into that old pattern in the gym. Rather than judging yourself for it, observe it with curiosity. When do you hold your breath? During the hardest part of the movement? Before it even begins? Or as soon as you think: “This is about to get tough”? That is precisely where change starts, before the first muscle stimulus.

“Breathing is not a minor detail in training; it is the software that controls all your hardware,” an experienced strength coach once told me. “Anyone who holds their breath presses pause when the body needs play.”

To make this practical in your next training session, use a short mental checklist:

• Pause briefly from time to time, relax your shoulders and take one deliberate deep exhale.
• Before every demanding exercise, perform 2 practice repetitions focused solely on breathing.
• Use a mental cue word, such as “Flow”, to remind yourself to exhale at the hardest moment.
• On the final set, choose clean breathing over one more completely tense repetition.

This turns breathing from an additional task into a thread running through your whole workout. It is a small internal timekeeper that gives back the strength you have had within you all along.

What happens when we stop wasting our breath

It becomes interesting when you imagine what training feels like once air is no longer an opponent but a partner. You arrive at the gym after a long day, perhaps already half tired. Previously, you might have simply battled your way through the sets, hoping it would “somehow be enough”. With deliberate breathing, the session begins more calmly. You straighten up, take one slightly longer breath and notice your stomach rather than your chest. Suddenly, the first dumbbell does not feel like an attack; it feels more like a conversation with your body.

Over time, you notice that the weights remain the same but the sensation during the sets changes. The third repetition, once the turning point, becomes an ordinary stage. Your mind feels clearer, and you no longer have to fight so hard to keep going. Friends may comment: “You look much more stable in your exercises.” Internally, you know it is not only because you have become stronger. You are losing less strength to tension and panic, and using more of what was always there.

You may recognise this pattern beyond the gym, too. Many people literally hold their breath when something is important, difficult or unfamiliar: during a presentation, in a conversation with their manager or on a first date. Anyone who learns to breathe through a difficult moment in training often carries that pattern into everyday life automatically. One slow breath before the crucial sentence. An exhale before saying “No”. Training then becomes more than muscle work; it is a kind of rehearsal for situations in which you would otherwise block yourself. Somewhere between the third squat and the first relaxed “No”, you may realise that this unremarkable breath was perhaps the greatest hidden resource you had.