The sentence you provided is incorrectly punctuated. The comma should be before the and in most sentences, like this; "I will see the Statue of Liberty, and visit Times Square."
Rereading. Or looking up unknown words.
Yet while Frankenstein is one of the most famous novels in the Gothic genre, it was written at a time when the Gothic novel was slowly giving way to the literary movement of Romanticism, and the novel shares the Romantic emphasis on the "sublime" power of nature.
The direct object would have to be the muscle's ability because it answers the question "what".
e.g: Exercise can increase what? The muscle's ability.
