Unlock the Hidden Power of Muscular Strength: Transform Your Body and Mind Beyond What You Thought Possible

Muscular Strength 101

If you’re an avid gym-goer, fitness enthusiast, or student in an exercise physiology class, you’ve no doubt heard the term muscular strength.

But what does it really mean? And can you actually increase it over time? As a guy who regularly hits the gym, I’ve found that a lot of people get confused about “strength” and assume it simply means how much you can lift.

On some level, that’s true. But the concept of muscular strength is a bit more layered than that. Before we dive in, here’s a video of Chris Hemsworth training for his role in Thor — watching his approach helps set the tone for everything that follows.

In this article, you’ll learn:

• The definition of muscular strength
• How muscular strength is measured
• How power relates to strength
• How muscular strength and endurance differ
• Examples for increasing muscular strength
• The benefits of building strength over time
• Myths about muscular strength
• Celebrities who engage in strength training

Muscular strength defined

Muscular Strength Definition

Muscular strength is defined as the maximal force that a muscle or muscle group can generate during a single bout of exercise (Kenny, Wilmore, & Costill, 2015).

This isn’t to be confused with muscular power, which is the rate at which a single bout of exercise is performed — the product of both velocity and force.

Example of Muscular Strength

Let’s say you and your training buddy are at the gym. As the two of you stand in front of a flat bench, your friend asks how much you can lift in one repetition.

Based on past experience, you think the answer is 220 lb. Impressed, your buddy asks you to prove it. Feeling confident, you load up the plates and hop on the bench. With your friend spotting you, you bang out one rep at the stated 220 lb.

Now it’s his turn.

He trades places with you and struggles to get the bar off the rack. That 220 lb is just too much for him. Somewhat embarrassed, he strips plates off each side until only 110 lb remain.

Through a full range of motion, that turns out to be the max he can lift.

Using this example, it’s fair to say you have twice as much muscular strength as your friend. Make sense?

Let’s move on to measuring strength.

Measuring Muscular Strength

In the hypothetical example above, we assessed muscular strength on a flat bench. Specifically, we wanted to know the maximal weight that can be lifted in one single effort.

This approach is referred to as 1 repetition maximum (1RM). To determine a person’s 1RM at the gym, an individual selects a weight they know they can lift through a full range of motion at least once.

Once properly warmed up, the person attempts several reps. If they can do it more than once, they increase the weight and try again.

The process continues until the individual reaches the point where they can no longer lift the weight more than a single repetition.

To keep it real, most of us don’t go around measuring muscular strength — at least not in the clinical sense. That typically happens in a research lab, using specialized equipment designed to quantify both static and dynamic strength.

Gains in muscular strength come from two separate sources: the structure of the muscle itself, and neural control. Muscle strength is measured during contraction, and the size of your muscle fibers is closely tied to how effectively your nervous system can activate them. This is part of why two people with similar-looking muscle size can have very different strength levels — one may simply have better neural drive.

How Muscular Strength and Endurance Differ

With all the different terms tossed around in the fitness world, it’s easy to get confused about what they actually mean. As a bodybuilder myself, I’ve struggled with a few of these distinctions too.

In my experience, the two that get mixed up most often are muscular strength and muscular endurance. Maybe that happens to you too?

Here’s a basic definition of muscular endurance:

The capacity to perform repeated muscle contractions, or to sustain a single contraction over time.

Muscular Endurance Examples

There are plenty of examples that point to muscular endurance, including:

• Push-ups
• Crunches
• Sit-ups
• Dips
• Calf raises
• Tuck jumps
• V-ups

Many endurance-type exercises are closely tied to plyometric exercises — a $10 term for explosive movements.

An easy way to gauge muscular endurance is to assess the maximum number of reps you can perform at a given percentage of your 1RM.

Going back to the earlier example: if you bench pressed 220 lb, you’d evaluate your endurance by measuring how many reps you can do at, say, 75% of your 1RM — which would be 165 lb.

The number of reps you can successfully complete with sustained force is how muscular endurance is measured.

How to Increase Muscular Strength

Now that you know what muscular strength is and how it differs from other terms, you’re probably wondering how to actually build it.

The easy answer is to hit the gym and do weight-bearing exercises. That’s true on some level, but it’s a bit more involved than that.

The most reliable path is a method called progressive overload — in plain terms, incrementally increasing the amount of weight you lift over time.

Some people use the pyramid method: starting with a set number of reps, you work your way up in weight until you get down to just one rep.

Example Pyramid

Let’s say you’re doing basic concentration curls to build your biceps. Here’s how a pyramid might look:

• 15 reps at 25 lb
• Rest 2 min
• 12 reps at 30 lb
• Rest 2 min
• 10 reps at 35 lb
• Rest 3 min
• 8 reps at 40 lb

In this scenario, you start at the bottom of the pyramid (25 lb) and gradually work your way up with incremental weight increases.

Pyramids can also run in reverse — starting with the heaviest weight and fewest reps, then moving downward.

Example Reverse Pyramid

• 8 reps at 40 lb
• Rest 2 min
• 10 reps at 35 lb
• Rest 2 min
• 12 reps at 30 lb
• Rest 3 min
• 15 reps at 25 lb

Both approaches work — the standard pyramid tends to prioritize a strong warm-up before your heaviest effort, while the reverse pyramid hits your heaviest weight while you’re freshest, which some lifters prefer for pure strength gains.

Free weights are great for increasing muscle strength

Tips for Improving Muscular Strength and Definition

If you’re like most guys, you want to increase strength across all major muscle groups while adding visible definition. This is especially true for bodybuilders.

So what’s the best approach? You’ll hear a ton of advice across the internet, but I’ll give it to you straight.

With that in mind, here are some general tips for improving strength:

• Engage in free-weight exercises
• Use a progressive overload approach
• Employ principles of variation — change exercises, rep ranges, or tempo every few weeks
• Consider plyometrics
• Increase the intensity of your training
• Prioritize compound lifts (squats, deadlifts, bench, rows) over isolation work when strength is the primary goal
• Give muscles 48 hours of recovery before training them again at high intensity
• Assess how much muscle you can realistically build, given your genetics and training age

Building Muscular Strength Benefits

When you build muscular strength, you gain a lot more than the ability to lift heavier weight. Other benefits include:

• Building lean muscle mass
• Increasing muscular size
• Boosting metabolism (helpful for weight loss)
• Looking tighter and leaner
• Coping with daily stress in a healthier way
• Increasing your level of self-esteem
• Improving posture
• Seeing real, visible results from your effort at the gym
• Protecting bone density and joint stability as you age

Myths About Building Muscle Strength

There are several myths about building muscular strength floating around — most of them urban legend, and some spread by people looking for a permission slip to skip the gym.

None of these hold up. Strength and endurance can be trained together, women build strength without unwanted bulk (that requires a very specific training and eating approach most people never pursue), and research consistently shows older adults can build meaningful strength and muscle well into their 70s and beyond.

Chris Hemsworth engages in muscular strength building exercises

Celebrities Who Regularly Build Muscle Strength

If you’re a moviegoer or watch much television, a few of these names are probably familiar. Here’s a short list of actors who regularly engage in strength-building exercises as part of their careers.

Wrap Up

If your goal is to see noticeable results at the gym, focus your efforts on muscular strength-building exercises.

There are plenty of books on this topic available online. One of my favorites is Bigger Leaner Stronger by Michael Matthews — loaded with practical tips whether you’re new to strength training or already have years of experience.

Bigger Leaner Stronger by Michael Matthews on Amazon

I hope you found the information on this page useful. Remember, consistency is key to getting bigger and stronger!

FAQ

References:

Kenny, L., Wilmore, J., & Costill, D. (2015). Physiology of Sport and Exercise (Vol. 6). Champaign, IL: Human Kinetics.