Muscular endurance is the ability of a muscle or group of muscles to sustain repeated contractions against a resistance for a long period of time. It is one of the markup of muscular fitness, along with muscular strength and power.
Types of Muscular Endurance
For strength training, muscular endurance points 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 loosing form.
The particular type of muscular endurance used during cardiovascular fitness activities such as running, swimming, or cycling is usually called cardiovascular endurance or cardiorespiratory endurance and it differs from the strength training. 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.