How to Measure and Improve Muscular Endurance

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Muscular endurance is the ability of a muscle or group of muscles to sustain repeated contractions against a resistance for an extended period of time. It is one of the components of muscular fitness, along with muscular strength and power.

Types of Muscular Endurance

In strength training, muscular endurance refers to the number of repetitions of a single exercise you can do without needing to stop and rest. Examples include how many times you can do a full squat, a sit-up, or a bicep curl with a light-to-moderate weight before breaking form.

The specific type of muscular endurance used during cardiovascular fitness activities such as running, swimming, or cycling is usually called cardiovascular endurance or cardiorespiratory endurance and is different from the strength training definition.

Endurance training for these types of physical activities builds the energy systems of the body, the muscle fibers, and capillaries that can sustain long periods of exercise, such as running a marathon or cycling a 100-miler.

Measuring Muscular Endurance

The American College of Sports Medicine recommends muscular endurance testing as well as muscular strength testing when you start a program of strength training. The results will help a trainer set the right intensity and loads for your exercises.

The pushup test is often performed as a measure of upper body muscular endurance. You do as many pushups as you can before you break form. There is a modified pushup test for women.

This may also be a timed test to see how many you can perform in a minute. You can compare how your performance matches up with others in your age and sex category. By tracking this number over time, you can see increases or decreases in upper body muscular endurance.

Improving Muscular Endurance

The American College of Sports Medicine recommends using a program of lower intensity strength training to improve muscular endurance.

The weight load should be less than 50% of the repetition maximum (the maximum weight you could use for one repetition of the exercise). This is a light to moderate intensity load. You perform a relatively high number of repetitions, 15 to 25 per set, for one or two sets.

To improve endurance for cardiorespiratory fitness activities such as running and cycling, progressively increase the time you spend in the activity at a moderate pace. While this will result in muscles that are geared for endurance, it is usually discussed as cardiovascular endurance.

Training for Muscle Endurance

Use these principles of exercise selection, loading and volume, rest periods, frequency, and repetition velocity to do a novice, intermediate or advanced training for muscle endurance. This training is based on the ACSM's position on weight training and resistance training.

Resistance training with moderate to low weights and high repetitions appears to be the most effective method to improve local muscular endurance and high-intensity (or strength) endurance.

Choosing Exercises

The exercises you choose should work large muscle groups or multiple muscle groups to fatigue, which stimulates changes in the muscles that will build endurance. A muscle endurance program can use a variety of exercises, including those using one or two limbs or one or two joints. Programs can develop sequencing combinations for novice, intermediate, and advanced training.

Loading and Volume

The evidence shows that loading is multidimensional and different programs can be used:

  • Novice and intermediate training: Relatively light loads should be used in the range from 10 to 15 repetitions.
  • Advanced training: Various loading strategies can be used for multiple sets per exercise in the range of 10 to 25 repetitions per set or more, in a periodized, progressive program leading to a higher overall volume.

Rest Periods

Short rest periods should be used for muscle endurance training. For example, 1–2 minutes for high-repetition sets (15 to 20 repetitions or more), and less than 1 minute for moderate (10 to 15 repetitions) sets. Circuit training is good for building local muscular endurance, and the rest periods should only fill the time it takes to move from one exercise station to another.


The frequency of training for muscular endurance is similar to that for building larger muscles:

  • Beginner training: 2–3 days each week when training the entire body.
  • Intermediate training: 3 days per week for total-body workouts and four days per week if using split routines for upper and lower body workouts.
  • Advanced training: Use a higher frequency of four to six days per week if the workouts are split by muscle group.

Repetition Velocity

Different speeds of contraction can be used based on the number of repetitions.

  • Intentionally slow velocities: Use when performing a moderate number of repetitions (10 to 15).
  • Moderate to fast velocities: These are more effective when you train with a larger number of repetitions, such as 15 to 25 or more.

A Word From Verywell

Muscle endurance training must be related to your target activity, whether it's doing barbell squats or running a marathon. You likely have limited time for training each week, and you have to consider whether you spend it doing specific muscle endurance training or practicing your sport.

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  1. American College of Sports Medicine position stand. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009;41(3):687-708. doi:10.1249/mss.0b013e3181915670

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