Buzz
How many repetitions should you complete when lifting weights? It’s often said that specific 'rep ranges' are ideal for increasing strength, while others are better for muscle growth, endurance, or achieving a toned physique. However, the accuracy of this commonly shared advice is debatable and may not be as reliable as many assume.
Understanding Reps and Sets
To clarify: if you perform eight bicep curls with a dumbbell before resting, you’ve completed one set of eight reps. (Rep stands for repetition.)
A standard workout routine typically involves multiple sets of each exercise, interspersed with rest intervals or alternating exercises. Common patterns include three sets of 10, four sets of eight to 12, or five sets of five. These are usually expressed in the [sets]x[reps] format, such as 5x5 for five sets of five repetitions or 3x10 for three sets of 10.
When determining the ideal number of repetitions, numerous factors come into play, especially when a seasoned trainer designs your program. However, many individuals tend to adhere to the recommended “rep ranges” believed to align with their specific fitness objectives.
What are the conventional rep ranges?
Here’s the advice commonly shared by trainers, influencers, and online sources. However, it’s essential to approach these recommendations cautiously, as I’ll clarify shortly:
Lower rep counts, such as one to five, are often associated with strength training.
Moderate rep ranges, like six to 12, are typically recommended for increasing muscle size.
For women aiming to “tone,” suggestions often include eight to 12 or 10 to 15 reps to achieve definition without excessive muscle growth.
Rep ranges of 15 or higher are generally considered ideal for improving muscular endurance.
The specific numbers may differ depending on the source, but no matter how you analyze it, there’s a logical inconsistency. If you perform 10 reps, are you focusing on muscle growth or maintaining a toned appearance? It can’t serve both purposes—unless 10 reps are versatile enough for either goal, suggesting that the number of reps alone doesn’t dictate the result. (Interesting…)
It’s also a misconception to assume that strength and muscle growth are entirely distinct, requiring entirely different training methods. Let’s explore some practical guidance to help you determine the most effective rep ranges for your needs.
Strength and muscle growth don’t always demand separate training approaches
Gym newcomers often invest significant time searching for the “perfect” routine to achieve their goals. However, as I’ve mentioned before, perfection is optional. Focusing on minor details isn’t nearly as crucial as understanding the broader perspective.
For most beginners and intermediate lifters, the overarching principle is that nearly any approach will enhance both strength and muscle size. Training in the “strength” range can still promote muscle growth, while working in the “size” range can lead to strength gains.
You can explore a detailed analysis of this concept here. The author, Greg Nuckols, a powerlifter and coach, concludes that lower rep ranges (like 1-5) tend to favor strength development, while higher reps (15+) are more suited for muscular endurance.
However, for increasing muscle size, almost any rep range can be effective. He notes: “The ‘hypertrophy [muscle-building] range’ of approximately six to 15 reps per set might yield slightly better results per unit of time compared to very low or very high rep ranges. That said, the overall benefit of sticking to the hypertrophy range isn’t as significant as many believe, offering at most a ~10-15% advantage per unit of effort.”
He advises incorporating a variety of rep ranges if your goal is to build larger or more defined muscles, rather than sticking to the same narrow range consistently. This aligns with the general consensus among experienced trainers: effective training programs typically include a mix of high and low rep exercises. This approach leverages the unique advantages and limitations of each rep range for specific exercises and objectives, not just overall fitness goals.
When to use low reps (1-5)
This range is traditionally associated with strength training, and it is effective for improving strength. Here, “strength” refers to increasing the maximum weight you can lift, even if it’s just for a single repetition.
For building strength
If your goal is to impress your friends by bench pressing more than they can, compete in weightlifting events, or achieve your first pullup, focusing on strength training is essential.
This requires training with heavy weights. A weight you can lift 10 times consecutively is relatively light for your capacity and won’t fully prepare your body for heavier lifts. Therefore, incorporating low-rep training (at least occasionally) is crucial if strength is your primary objective.
To master technique
Low reps also allow for better focus and reduce fatigue. By the 10th rep of a set, you might feel tired or lose form, but this is less likely to occur in a set of three. Olympic weightlifters, for instance, often perform their complex competition lifts in sets of just one to three reps.
Beginners learning new exercises, such as squats or barbell presses, may also benefit from working in this range. Perform a few repetitions, rest, and return with renewed focus.
For muscle growth, in combination with other rep ranges
Heavy weights create significant mechanical tension on your muscles and contribute to strength gains. These factors mean that low-rep sets can still promote muscle growth, even though they aren’t typically associated with hypertrophy. Ultimately, increased strength allows you to handle heavier weights, which can enhance your performance in moderate- and high-rep sets.
When to use moderate reps (6-12)
This range strikes a balance between building strength and muscle size while providing ample practice in moving weights. Nearly everyone can benefit from incorporating this rep range into their training regimen at least occasionally.
For building strength and muscle size
This rep range is likely optimal for increasing muscle size and significantly supports strength-building efforts.
Even strength-focused athletes incorporate plenty of work in this range to add extra muscle mass. For example, after performing squats in sets of three, they might switch to sets of 10 for lunges, leg extensions, or the leg press machine.
For beginners and general fitness
While low reps are ideal for mastering complex or unfamiliar exercises, beginners are often advised to transition to a moderate rep range once they feel comfortable—a strategy that is both practical and effective.
Performing eight to 10 repetitions of the same exercise provides ample practice (totaling 30 reps across three sets of 10) without the need to struggle with heavy weights before mastering the technique.
For “toning”
Toning isn’t a distinct strength training objective, which is why it doesn’t have a unique rep range. Being “toned” primarily refers to an aesthetic: it means having visible muscle definition while maintaining a relatively lean physique.
This is why the same exercises that help individuals “bulk” are also suitable for those aiming to “tone.” In other words, any resistance training that promotes muscle growth is appropriate for both goals.
So, what distinguishes a “bulky” physique from a “toned” one? Factors include nutrition (more food intake allows for greater muscle growth) and the duration and intensity of training. Building significant muscle mass requires considerable time and effort.
I might even argue that mindset plays a role: individuals who understand the importance of muscle for their health and fitness goals often view their increased muscle mass as part of a healthy, fit appearance—not necessarily as “bulk.”
When to use higher reps (15+)
Traditionally, this range is labeled as the “muscular endurance” zone, but that’s somewhat misleading. Higher reps aren’t particularly effective for building strength and may not be the best choice for increasing muscle size. Their primary benefit lies in helping you perform a high number of repetitions.
For muscular endurance, in combination with lower rep ranges
The reality is, if your goal is to build muscular endurance—for example, to perform 100 consecutive pushups—you’ll also benefit from incorporating lower rep ranges to enhance strength. Greater strength makes each pushup easier, allowing you to sustain the effort longer.
Research has shown that you don’t need to focus exclusively on the 15+ rep range to develop muscular endurance—rep ranges like three-to-five or six-to-eight may be even more effective than dedicating all your training time to high reps.
If your goal is to perform 100 pushups, I wouldn’t advise you to only focus on high-rep sets; low-rep sets are equally valuable. However, practicing high reps is still essential for developing the skill, conditioning, and mental resilience needed to achieve your objective.
For muscle growth (and “toning”), when only light weights are available
Heavy or moderate reps require appropriate weights. If your equipment is limited, you may have to adapt and maximize what you have.
Fortunately, studies indicate that muscle growth can still occur with light weights and high repetitions, provided you push each set to failure. So, if it takes 20 or even 30 reps to fatigue your arms during a bench press with light dumbbells, that approach can still be effective.
If you can perform more than 30 reps, you’re transitioning from strength training into a zone that resembles cardio. At this stage, it’s wise to seek out more challenging exercises or find a way to access heavier weights.
The key takeaway: incorporating variety in rep ranges is beneficial
In the end, you don’t have to stick to a single rep range for all your workouts. Powerlifters don’t only train in the strength range, nor do bodybuilders only focus on the size range. The person in your neighborhood who can do 25 pullups likely isn’t doing 25 reps of every exercise in their routine.
When you hit the gym, consider using low reps for one or two strength-focused exercises, moderate reps for the majority of your workout, and occasionally higher reps for variety or when working with lighter equipment.
