Physical strength is the sum of power one can put forth with a single effort. Muscular stamina is the summation of times your muscles can reiterate an action getting tired. For instance, muscular power affects the amount of weight you can bench press, and muscular power characterises. How many times you can bench press that weight ahead of your muscles begins feeling tired. One can enhance muscular strength and endurance by executing many repetitions of muscular strength exercises while steadily storing the resistance.