Strength training is a form of exercise where muscles produce force against resistance in order to increase strength, muscle mass, and physical capacity.
The resistance can come from external loads such as barbells, dumbbells, kettlebells, or machines, or from bodyweight during movements like push-ups, pull-ups, and squats. The defining characteristic of strength training is the use of progressively increasing resistance over time.
When muscles repeatedly generate force against resistance, the body adapts by improving its ability to produce force. These adaptations include increases in muscle size, improvements in neuromuscular coordination, and structural changes in connective tissue and bone.
Strength training is widely recognized as one of the most effective forms of exercise for improving physical performance, maintaining muscle mass, and supporting long-term health. If you’re wondering how strong you should be relative to bodyweight or training age, see our Strength Standards guide.
Strength Training vs Resistance Training
The terms strength training and resistance training are often used interchangeably.
Resistance training broadly refers to exercise where muscles contract against a load. This load may come from:
- Barbells or dumbbells
- Resistance machines
- Kettlebells
- Resistance bands
- Bodyweight exercises
Strength training is a type of resistance training specifically aimed at improving the ability to produce force.
Most structured strength training programs emphasize progressive overload, meaning the resistance or training stress gradually increases over time to stimulate adaptation.
For a deeper explanation of how lifters progress through different stages of development, see our Strength Training Guide.
Strength Training vs Cardio
Strength training and cardiovascular training produce different physiological adaptations.
Cardiovascular exercise such as running, cycling, or rowing primarily improves aerobic capacity and endurance. These activities train the body to deliver and utilize oxygen more efficiently during sustained activity.
Strength training primarily improves the ability of muscles to generate force. It also increases muscle mass, enhances neuromuscular coordination, and strengthens connective tissues.
Both forms of training can contribute to overall health and physical fitness. Many effective training programs include both resistance training and cardiovascular exercise.
Benefits of Strength Training
Strength training provides a wide range of physical and health benefits.
Increased Strength
Regular resistance training improves the ability of muscles to produce force. This translates to improved performance in both athletic and everyday activities.
Increased Muscle Mass
Strength training stimulates muscle hypertrophy, particularly when exercises are performed with sufficient resistance and volume.
Improved Metabolic Health
Resistance training can improve insulin sensitivity and blood glucose regulation. These adaptations support metabolic health and may reduce risk for chronic disease.
Improved Bone Density
Loading the skeleton through resistance exercise can help maintain or increase bone mineral density, which is particularly important as individuals age.
Improved Physical Function
Strength supports everyday activities such as lifting objects, climbing stairs, maintaining balance, and preventing falls.
Does Strength Training Burn Fat?
Strength training can contribute to fat loss, though it is not the primary driver.
Fat loss is primarily determined by energy balance, meaning calorie intake relative to calorie expenditure. Strength training increases energy expenditure and helps preserve muscle mass during weight loss.
Maintaining muscle mass during a fat-loss phase improves body composition and supports long-term metabolic health
Is Pilates Strength Training?
Pilates is often promoted as a way to build strength, but whether it qualifies as strength training depends on how strength is defined.
Pilates exercises typically involve bodyweight movements or spring-based apparatus that create muscular tension. In this sense, Pilates falls under the broad category of resistance exercise. (Please see the Barbell Medicine Podcast Episode #349 on Pilates)
However, when most people refer to strength training, they are typically describing exercise that allows progressively heavier loading of the muscles, such as lifting weights.
Research examining Pilates and strength outcomes generally shows modest improvements when Pilates is compared to no exercise. In studies comparing Pilates directly with resistance training, traditional strength training consistently produces larger improvements in strength and physical performance.
This difference likely reflects the amount of mechanical loading involved. Strength and muscle mass tend to increase most when muscles are trained with sufficient resistance and progressive overload.
Pilates may still provide benefits compared with inactivity, particularly for trunk strength and general movement. However, if the goal is maximizing strength or muscle mass, traditional resistance training is generally more effective.
Is Yoga Strength Training?
Yoga can produce small improvements in strength, particularly in individuals who are new to exercise.
Many yoga poses involve supporting bodyweight in positions that require muscular effort. This can produce modest strength adaptations when compared with inactivity.
However, yoga typically involves relatively low levels of external resistance and limited opportunities for progressive overload. Because of this, it generally produces smaller strength and muscle gains compared with structured resistance training.
Yoga can still be valuable for mobility, relaxation, and general physical activity, but it is not typically considered a primary method for maximizing strength development.
Is Calisthenics Strength Training?
Calisthenics refers to bodyweight exercises such as push-ups, pull-ups, dips, and squats.
When these exercises are progressively made more challenging—by increasing repetitions, modifying leverage, or adding external resistance—they can function as effective strength training.
Bodyweight training can improve strength and muscle mass, particularly in beginners. However, compared with traditional resistance training using weights, calisthenics may offer fewer options for precise loading and progressive overload.
For this reason, many strength programs combine both weighted exercises and bodyweight movements.
How Often Should You Do Strength Training?
Most people benefit from performing strength training two to four times per week.
Beginners often make excellent progress with two or three sessions per week. More experienced lifters may train more frequently depending on their goals and recovery capacity.
Consistency over time is far more important than any specific weekly schedule.
How to Start Strength Training
If you are new to strength training, focus on the following principles:
- Learn proper exercise technique
- Follow a structured training program
- Apply progressive overload gradually
- Allow adequate recovery between sessions
Following a structured program helps ensure training stress increases appropriately over time.
If you want to start strength training with a structured plan, explore the Barbell Medicine strength training programs, which guide lifters through beginner, intermediate, and advanced stages of development. If your progress stalls, see our guide to strength training plateaus.
Examples of Strength Training Exercises
- Barbell squat
- Bench press
- Deadlift
- Overhead press
- Dumbbell row
- Pull-up
- Push-up
- Machine leg press
Frequently Asked Questions
Is strength training the same as resistance training?
The terms are often used interchangeably. Resistance training broadly refers to exercise where muscles contract against a load, while strength training usually refers to resistance training aimed specifically at improving force production.
How many days per week should you do strength training?
Most individuals benefit from performing strength training two to four days per week depending on their goals and experience level.
Can Pilates replace strength training?
Pilates may improve strength slightly compared with inactivity, but traditional resistance training typically produces much larger improvements in strength and muscle mass.
Is yoga considered strength training?
Yoga can improve strength in beginners but generally provides a smaller stimulus for strength development compared with structured resistance training.
Is bodyweight training strength training?
Yes. Bodyweight exercises such as push-ups and pull-ups can function as strength training when they are progressively made more challenging over time.
How long does it take to get stronger?
Beginners often see measurable strength improvements within several weeks of consistent training. Long-term strength development occurs over months and years.
References
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