Teenager joining a gym? What equipment should I use? Other tips?
So do you have any tips for me?
Also, what gym equipment should I use and what sort of exercises should I be doing to gain muscle mass but try not to loose much fat? As i said, I'm underweight so i don't want to loose weight by joining the gym.
Would using a rowing machine help me? Would it build muscle in my arms and legs? Anywhere else?
Any other tips would be great :)