Research conducted by scientists at Solent University may help you answer that question.
After parsing 18 studies examining how hard people habitually train, the researchers found that when people were told to perform several (usually three) challenging sets of a certain number of reps (usually ten), they consistently selected training weights that were too light for optimal results.
For example, in one of the studies reviewed, scientists asked participants to do three sets of 10 reps of the bench press, leg press, and biceps curl with enough weight to make the sets difficult.
On average, the participants selected weights that were equal to 53% of their one-rep max—significantly lighter than their 10-rep max of about 75% of one-rep max (that is, regardless of the exercise, most people can do about 10 reps of 75% of their one-rep max and 20+ reps of 50% of their one-rep max).
Although some people may describe sets of 10 reps with 53% of one-rep max as “difficult,” research shows they’re not difficult enough to maximize muscle and strength gain, especially in experienced trainees.
Specifically, studiesshowthat working sets (hard, muscle-building sets) must come to within 1-to-4 reps of muscular failure to produce a powerful training stimulus (that in turn can produce a powerful anabolic response).
Put differently, if you end a set of any number of reps with more than 3-to-4 good reps left (“in reserve” in the literature), it won’t cause nearly as much muscle growth as a set that ends with 1-to-3 good reps left.
Consequently, it takes several “far-from-failure” sets to achieve the same effects as one “close-to-failure” set.
This is one of the primary reasons many people spend hours in the gym every week for months or years with little change in their strength and muscularity—they don’t come close enough to muscular failure in most of their sets and don’t do enough total sets to compensate for this lack of intensity (which could require doubling or even tripling the duration of their workouts).
So, to ensure you’re not leaving too many reps (and thus gains) “in the tank” in your workouts, get in the habit of asking yourself the following question when a working set is getting difficult: “If I absolutely had to, how many more reps could I get with good form?”
Then, trust your intuition (it’ll be fairly accurate, especially if you’re a seasoned weightlifter), and keep going in the set until the answer is between one and three.
Additionally, it can help to occasionally continue sets to muscular failure (where you can’t perform another rep with good form) so you can calibrate your perception of difficulty to reality. A caveat, however: don’t do this with any type of barbell squat or deadlift because the risks (of injury) outweigh the benefits.
If you don’t like something of ours, guess what happens next?
No, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon. Nor do we ask you to fill a cursed inkwell with orc’s blood and demon saliva and then use it to complete reams of return forms written in ancient Cyrillic script.
We just . . . wait for it . . . give you your money back. Holy moo cows. And that means you can say "yes" now and decide later.
Free Worldwide Shipping & Returns
Many companies use shipping and handling fees to increase their profit margins, but here at Legion, we hate profits, so our shipping is free!
Okay, so we do dig on profits, but we also go in for happy customers, and free shipping works like gangbusters. So, if you live in the United States, your order ships free regardless of order size, if you live in the UK, Canada, Puerto Rico, or Guam, your order ships free when it’s over $99, and if you live elsewhere, your order ships free when it’s over $199.
Also, if you don’t absolutely love our stuff for whatever reason, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon.
We just . . . wait for it . . . give you your money back. No returns. No forms. No nonsense. Holy moo cows.
That means you can say “yes” now and decide later. You really have nothing to lose.
Free Worldwide Shipping & Returns
Many companies use shipping and handling fees to increase their profit margins, but here at Legion, we hate profits, so our shipping is free!
Okay, so we do dig on profits, but we also go in for happy customers, and free shipping works like gangbusters. So, if you live in the UK, Canada, Puerto Rico, or Guam, your order ships free when it’s over $99.
Why the restriction on international orders? Unfortunately, shipping abroad is very expensive, and if we didn’t require a minimum order size, we’d lose a lot of money. But! We're also hustling to improve our international logistics and will be passing our savings along to our international customers.
Also, if you don’t absolutely love our stuff for whatever reason, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon.
We just . . . wait for it . . . give you your money back. No returns. No forms. No nonsense. Holy moo cows.
That means you can say “yes” now and decide later. You really have nothing to lose.
Free Worldwide Shipping & Returns
Many companies use shipping and handling fees to increase their profit margins, but here at Legion, we hate profits, so our shipping is free!
Okay, so we do dig on profits, but we also go in for happy customers, and free shipping works like gangbusters. So, if you’re outside the USA, your order ships free when it’s over $199.
Why the restriction on international orders? Unfortunately, shipping abroad is very expensive, and if we didn’t require a minimum order size, we’d lose a lot of money. But! We're also hustling to improve our international logistics and will be passing our savings along to our international customers.
Also, if you don’t absolutely love our stuff for whatever reason, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon.
We just . . . wait for it . . . give you your money back. No returns. No forms. No nonsense. Holy moo cows.
That means you can say “yes” now and decide later. You really have nothing to lose.
Wait! Want to save 50% on your order of Legion supplements?
Use code NASM25 at checkout!
Buy one supplement, get one 50% off when you use code LEGION10 at checkout.
No thanks, I don't want to save on my order.
You're Back! We've Missed You!
Blare the trumpets and beat the drums because you get 20% off your next order!
Simply use the code COMEBACK20 at checkout to unlock instant savings.
Nah, I'm Good
Buy now, pay later.
Split your entire online purchase into 4 interest-free payments, over 6 weeks with no impact to your credit.
25% today
25% 2 weeks
25% 4 weeks
25% 6 weeks
Here's how to Sezzle
Shop
Shop and add items to your cart as normal!
Checkout
Choose Sezzle at Checkout! You’ll be redirected to Sezzle to Sign Up or Log In
to complete your order.
Sezzle it
Your order will be shipped out right away* and your payments will be split up
over 6 weeks.
*shipping times subject to merchant shipping policy
Download the App
Shop directory. Reschedule payments. Plus more!
Waiver and Release of Liability
In consideration of the services and/or products offered by Legion Athletics, Inc. (“Legion”) including, but not limited to, nutrition plans, exercise routines and coaching, and in addition to the payment of any fee or charge:
I knowingly and voluntarily enter into this waiver and release of liability and hereby waive any and all rights, claims or causes of action of any kind whatsoever arising out of my use of Legion’s services and/or products, and I hereby release and hold harmless Legion and its consultants, officers, contractors, agents, owners and employees from any and all responsibility, liability, cost and expenses, including for injuries, damages or disorders (physical, metabolic, or otherwise), resulting from my use of Legion’s services and/or products.
I understand that fitness activities including, but not limited to, strength, flexibility, and cardiovascular exercise, with or without the use of equipment, are potentially hazardous activities that involve a risk of injury and even death, and I am voluntarily participating in these activities and using equipment and machinery with knowledge of the risks involved. I hereby agree to assume and accept any and all risks of injury or death related to said fitness activities.
I understand Legion’s services and products are not meant to treat or manage any health conditions or circumstances, and I acknowledge that Legion has recommended I obtain a healthcare provider’s approval for my use of Legion’s services and/or products, through regular physical examination(s) and/or consultation. I acknowledge that I have obtained my healthcare provider’s approval or have decided to use Legion’s services and/or products without such approval and hereby assume all responsibility for my use of said services and/or products.
I understand that results from using Legion’s products and/or services are not guaranteed, and I agree to not hold Legion liable for any outcomes or lack thereof.
OUT OF STOCK
Great! You're subscribed!
Looks like you're already subscribed!
Security Check
Please click the checkbox below. We apologize for the inconvenience.
Our scientific review board of nutritionists, dietitians, molecular biologists, doctors, and other accredited experts is responsible for reviewing every article, podcast, and video we produce to ensure they’re evidence based, accurate, trustworthy, and current.
Thanks to their connections, credentials, and academic experience, this team of MDs, PhDs, and other professionals has access to a wealth of research published in the largest and most prestigious journals in the world.
This allows them to not only review individual studies but also analyze the overall weight of the evidence on any and all topics related to diet, exercise, supplementation, and more.
If you feel that any of our content is inaccurate, misleading, out-of-date, or anything less than factual, please let us know in the comments section of the article in question.
Evidence Based
We follow a detailed, rigorous, multi-step process to create content that meets the highest standards of clarity, practicality, and scientific integrity.
First, our research associates provide our editorial team with accurate, up-to-date, proven scientific evidence.
Then, our editorial team uses this research to draft articles and outlines for podcasts and videos.
Finally, our scientific review board reviews the content to ensure all key information and claims are backed by high-quality scientific research and explained simply and precisely.
If you feel that any of our content is inaccurate, misleading, out-of-date, or anything less than factual, please let us know in the comments section of the article in question.
We and our partners use technology, including cookies, to view and retain your site interactions, enable site functionality, enhance user experience, perform analytics, and assist our marketing efforts as described in our Privacy Policy.