Tomorrow is your workout day. That would be exciting except for the fucking fact that the lift-till-you-puke workout program awaits you. Because, well, because your favorite Insta-Celeb told you “no pain–no gain!”

She told you that to build muscle or burn fat, you need to lift weight all the way to the point where a full repetition cannot be completed without assistance from outside means such as cheating or assistance from a training partner.

So what now? Are you going to have to go balls to the wall and squat until you… errr, die? Thankfully, no.

Firstly, you need to forget that Insta-Celeb (and her voluptuous ass). Secondly, trust science & evidence.

In 2016, Davies et al. published a systematic review and meta-analysis1 (a combination of the results of multiple scientific studies. Meaning—the study of studies):

This picture shows the study who looked at training to failure

Researchers found no advantage when training to failure compared to leaving repetitions in reserve and concluded that:

This is the outcome of the study that looked at whether you should train to failure or not

And continued with:

This is the outcome of the study that looked at whether you should train to failure or not

While there are studies2 that show training to failure is beneficial the weight of the evidence3,4 states that leaving repetitions in reserve is as effective as training to failure:

This is the outcome of the two other studies that looked at whether you should train to failure or not

If you are one of many fitness fanatics currently training to failure every time you hit the gym, you might say to me something like:

To that, I would say:

You see, contrary to what your local gym meathead told you training to failure ain’t all sunshine and rainbows. It has major drawbacks:

  • Uh, how about you might die?

Imagine you’re squatting heavy-ass weight:

You go down (unsure if you ever gonna squat up ever again) → You get stuck half-way → You don’t have a spotter (or he is chatting with that Insta-Celeb you have a crush on) → You’re all alone in a situation where it’s hard to drop the weight or squat up with a good form → Your form breaks and you die (meaning–hurt yourself).

What I’m trying to say is that you don’t want to perform multi-joint compound lifts such as a squat, deadlift, or barbell bench press to failure as the risk of injury is too high. 

  • Extra fatigue

Training to failure on a regular basis can generate too much fatigue5. So much hat you can compromise an ability to perform your best in the following exercises and/or workouts.

  • Lower training volume

Volume is the total amount of work performed during a workout, week, month, etc. and it’s one of the key drivers for muscle growth. 

Say you do 4 sets of squats with your 10 repetition max load. On your first set, you went all out and did 10 reps to failure. You would probably drop down to 8 reps on your second set, 7 reps on your third, and possibly 6 on the last. This would be 31 reps total.

However, if you were to stop and just do 8 reps on the first set, you may be able to maintain 8 reps for the next three sets and that would leave you with 32 reps total.

More volume = possibly more muscle growth. 
~
So should you just stop training to failure? No. Heaps of people enjoy training to failure and if you take away something they like, they’re not going to enjoy working out. 

That being said, here’s my advice because I’m hungry and need to go eat: You can absolutely train to failure. It just needs to be done intelligently and sparingly. Here are some suggestions:

  • Limit training to failure

Limit training to failure to 25-50% of all work sets during the week.

  • Keep failure training minimal if done at all in the heavy compound exercises

Go to failure on your isolation exercises to get some extra stimulation with little to no cost to recovery.

  • Periodize training

For example, you could train with 3 reps shy of failure on the first week of training, 2 reps shy on the second, 1 rep shy on the third, go to failure on the last week of training, take a week off training (a deload) and repeat it all over again.

Alternatively, you could train to failure in short cycles (2-4 weeks on, 2-4 weeks off).

Or let’s say you train on Monday, Wednesday, and Friday. This means you have 48 hours to recover from Monday’s workout to Wednesday’s but you have 72 recovery hours following Friday’s workout. So it would make sense to utilize failure training on your Friday’s workout as you have more time to recover from it.

Read this article about how heavy you should train.

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I’m fully aware of the fact that every gym is stuffed with tan buff guys with shaved loins postulating you HAVE TO train to failure but the truth is, failure needs to be used with a purpose if used at all.

I encourage you to absorb the scientific data that is known, adapt it to your own program, and adjust as necessary to keep progressing. 

Exercise should lift you up, making you more energized for the rest of your daily life, not turn you into a wastoid who has nothing left over after doing 7 exercises to failure.

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