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How Long Should My Workout Be?

How Long Should My Workout Be?

When it comes to workout duration you'll find gym-goers jumping to either one of two extremes...

"Forget the clock, spend as many HOURS as it takes to do your workout.. whether this be 2 or 3 hours is irrelevant!"

"If you spend even a second beyond 45 minutes in the gym you're going to be losing gains!"

Here's My Take On Workout Duration...

A good workout should last around an hour.

It could be slightly longer or it could be slightly shorter dependant on the muscle group you're training and rep range you're working in.

A strength oriented leg workout will consist of several exercises performed in a low rep range, in order to hit these sets hard we're going to need a lengthy rest period between sets.

On the other hand... if your goal is purely muscular hypertrophy you're going to be hitting a hell of a lot more in terms of sets and exercises... but your rest periods are going to be significantly shorter.

Regardless of which approach you're taking the workout duration will tend to be roughly the same.

If your workouts are consistently shorter or longer than the hour mark it's time to delve in and take a look at what you're actually doing in the gym...

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Research On Workout Duration

Shortly after commencing a workout your testosterone levels begin to increase, peaking around 30 minutes into your workout.
Around the 45 minute mark your testosterone levels drop and cortisol begins to increase...

This suggests that workouts exceeding far beyond the 45 minute mark will see you suffering in terms of gains and recovery.

From my experience training for an hour in total has not caused any issues.

How Long Should My Workout Be? (Breakdown)

10 - 15 Minutes - Warm Up (Preparing The Muscle Group)

Spend 10 - 15 minutes at the start of your workout preparing the muscle group(s) you're about to train.

If I'm training shoulders this'll generally include some trigger point therapy with a tennis ball as well as some rotator cuff stretches (working internal and external rotation) as well as some shoulder dislocations.

If I'm training legs this will include some hip flexor stretches, bodyweight squats and the foam rolling of my quads, calves, hamstrings, glutes and ITB.

Neglecting your warm up is the biggest mistake most gym-goers make... without a sufficient warm-up your going to be limiting yourself in terms of range of motion and fluidity of repetitions while subsequently risking injury (I've been there!).

A proper warm up will take anywhere from 10 - 15 minutes.

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45~ Minutes - Lifting (Maintaining Intensity)

The vast majority of well programmed workout regimes can be completed in 45 minutes.
There's no need to hit 15 different arm exercises with 4 sets per exercise - if you're able to muster through that many exercises and sets your intensity (and the weight being lifted!) are too low.

4 - 5 exercises per muscle group is more than enough.

3 - 4 sets per exercise is more than enough.

Rest periods? that comes down to your end-state goal. I recommend around a minute rest between sets for those chasing hypertrophy while the strength-oriented athlete rests for 2 - 3 minutes between sets.

Once again, this should take you around 45 minutes - if your workout is consistently shorter or longer than this it's time to re-assess the volume and intensity of your workout.

On Volume

If your workouts are dragging on for hours and your keeping consistent with your rest periods you're likely hitting far too many exercises & sets.
The law of diminishing returns applies to weightlifting... more volume isn't necessarily going to get you more gains (it's often opposite).

On Intensity

If you're performing 4 - 5 exercises per muscle group and struggling to get it done in under an hour it's time to look at your intensity...
Are you being consistent with your rest time between sets and exercises?
Are you wondering off to the water cooler to talk to your bros between sets?

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Stay focused and get your workout done, there's all the time in the world for water cooler chatting when you're done.

5 Minutes - Cool Down (Finishing Up)

After you've obliterated your workout spend a handful of minutes cooling down with some mobility work and trigger point therapy again if need be.
I personally find that foam rolling and stretching the muscle group immediately after training reduces the delay onset muscle soreness (DOMS) the following couple of days.

What's Your Take On Optimal Workout Duration? Let Me Know Below!

Scott J.
Scott J.
I’m SJ. I’m a fitness enthusiast and published author. I transformed my body from a skinny fat 135lbs with 18% body fat to a solid 192lbs at 8% body fat. I became qualified in a field I was passionate about. I founded several online businesses that allow me to pursue ideas and projects in my life that I am passionate about without having to constantly worry about money. I published several eBooks explaining the training and dieting techniques I used to achieve the body I have today. I learnt a plethora of new information on dieting and fitness by reading and applying what I read, to find out what does work and what doesn’t work, because as I’m sure you’ve noticed the health and fitness industry is full of non-sense claims and BS. I found out what was true and what worked for me and applied that knowledge. And you bet I had fun during the whole process.

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