How Hard Should Your Workouts Actually Feel?

There’s a common belief that a good workout should leave you exhausted. You should be dripping with sweat, struggling to walk down the stairs and waking up sore the following morning. If none of those things happen, it can be tempting to wonder whether you actually worked hard enough.

But being completely exhausted isn’t necessarily a sign of a good workout. In fact, how tired or sore you feel afterwards tells us surprisingly little about how effective your training has been.

Exercise does need to challenge you. If you want to become stronger or fitter, your body needs a reason to adapt. When strength training, that means using a weight or exercise that requires genuine effort. When working on your cardiovascular fitness, it means spending some time breathing harder and challenging your heart and lungs.

The important word, though, is challenge. Not punishment.

Take strength training as an example. If you finish a set of ten repetitions knowing you could comfortably have done another ten, it probably wasn’t particularly challenging. But that doesn’t mean every set needs to continue until you physically cannot complete another repetition either.

For much of your training, finishing a set feeling as though you could have managed another couple of good-quality repetitions can provide plenty of challenge. As you become stronger, the weight, repetitions or difficulty can gradually increase. That progression over time is far more important than how exhausted you feel after one individual session.

The same applies to cardiovascular exercise. Not every run needs to leave you gasping for air and not every session on a bike or rower needs to be completed at maximum effort. Harder sessions certainly have their place, but easier exercise does too. It allows you to build fitness, accumulate more movement and recover properly without constantly pushing your body to its limit.

Soreness can be misleading as well. We often associate aching muscles the following day with having had a particularly effective workout, but soreness is commonly caused by doing something your body isn’t accustomed to. Try a new exercise or return to training after a few weeks away and you may feel considerably more sore than usual. Once your body becomes familiar with that exercise, the soreness often reduces even though the training is still working.

Sweating isn’t a particularly useful measure either. Some people naturally sweat more than others, and things such as temperature, clothing and the type of exercise you’re doing all make a difference. You can have an excellent strength session without leaving a puddle on the floor.

A much better way to judge your training is to look at what happens over time. Are you gradually becoming stronger? Can you perform exercises with better control? Can you lift a weight that used to feel difficult more comfortably? Can you walk further, recover faster or complete more work than you could a few months ago? Those changes tell us far more than how tired you were when you left the gym.

It’s also normal for the same workout to feel different from one week to the next. Sleep, stress, nutrition, illness and everything else happening in your life can affect how you perform. Some days you’ll feel fantastic and be able to push yourself. On others, simply getting through the session at a slightly lower intensity might be exactly what your body needs.

Ultimately, a successful workout isn’t one that leaves you unable to move for three days. It’s one that challenges your body enough to create change while allowing you to recover and come back to train again.

Because the goal isn’t to survive the hardest workout possible, it’s to keep making progress for years to come.