Muscular endurance is the ability of a muscle or group of muscles to perform repetitive contractions against a force for an extended period of time. Muscle endurance is helpful in most sports but is particularly critical for swimmers.
Of course building muscle endurance means you can perform on race day, powering your body through sprints and distance events alike. But it can also have an important impact from your practicing.
Athletes with better muscle endurance find it easier to maintain proper form when practicing, so their workouts are better targeted at developing the right muscle groups for racing. And when swimmers lose their race form, it's often through bad stroke habits they pick up while their muscles are fatigued during practice.
Also, swimming workouts offer less rest periods than even other endurance sports - the simple act of being in the water ensures that any movement is met with dynamic resistance.
Yes swimming builds endurance, but it also benefits from it - and building muscle endurance can be an important way to help maintain your form, at practice and on race day.
3x20 Hand to Feet
-3x10 Med ball slam
-5x20 second plank
-3x20 Dead Bug
-3x20 Raised Leg Crunch
-3x20 Russian Twist