Hi guys, i'm 26, 1,75m height and weigh about 75-76 kg (165 lb i think). Because of my body type i don't have any body fat, plus i've lost a lot of weight when i had a anterior ligament reconstruction this summer (i weighted 78kg and dropped down to 70kg but i'm gratually starting to regain the weight). I have an athletic backround, i trained in muay thai and wrestling but i had to stop due to the injury. So i've decided to hit the gym instead.
I've been training for a few months now and i want to take it to the next level. My body's starting to get into shape, i've noticed the changes myself. I've been taking care of my diet and avoid junk food, drinking etc. I go to the gym 4 times a week and i do body parts splits like:
Monday: Chest and biceps
Tuesday: Back and triceps
Thursday: legs and shoulders
Friday: Any of the above (but not the same as the one on Thursday)
I do 4 sets of : 15-10-8-10.
So my questions are:
1) Is 4 times a week ok to gain more muscle?
2) Should i change the reps? Maybe add more weight?
3) Should i change my training regime? I mean, should i traing each body part twice a week?
Thank you and i apologise if my questions sound a bit stupid but i want to train properly and not end up injuring myself or not progress at all!!