The direct object is the concept used to identify the beneficiary part of the verb in the sentence. In other words, the object or noun modified by the action. In our case, the muscles' ability to store energy is one object. Because we are not talking about the muscles. But their ability to store energy. Therefore, the object is a really small one that is expressed with many words.
Success is determined not by whether or not you face obstacles, but by your reaction to them. And if you look at these obstacles as a containing fence, they become your excuse for failure. If you look at them as a hurdle, each one strengthens you for the next.”