Muscular strength is the ability of a muscle to exert maximum force against resistance. Muscular endurance is the potential of a muscle to maintain a contraction or consistently perform contractions over time for a specific muscle group.
You often use muscular endurance in your daily life when you are raking leaves or when you are walking up a long flight of stairs. Both endurance and strength are necessary for various sports and activities. Marathon running and cycling requires muscle endurance, while weight -lifting and boxing requires muscular strength.