I don't have a personal trainer, a gym membership, or really any gym equipment (such as dumbbells), so for my daily workout/training (to gain muscle) I have resorted to using body weight exercises.
It mainly consists of push-ups (and their many variations), pull ups and plank. My biggest fear about pushing my limits is that I may someone causes permanent or somewhat significant damage - such as pulling or ripping/tearing a muscle. I'm quite young so I do not want to have problems that will continue to plague me for years to come.
Can you rip/tear muscles through body weight exercises such as pullups, push ups, and plank?