Trouble gaining muscle at age 45
I'm looking for some help with packing on muscle, I've been lifting seriously for over a year now, but the gains are slow, and I was wondering if I should do anything different. I use a powertec leverage machine along with curl bars, and 90 lb powerblock dumbbells. I lift 3 days a week Sunday: Chest 4 exercises of 4 sets each, Triceps 4 exercises of 4 sets each.
Tuesday: Back 4 exercises of 4 sets each, Biceps 4 exercises of 4 sets each.
Thursday: Shoulders 4 exercises of 4 sets each, Legs 3 exercises of 4 sets each.
Calories per day around 2000 weekdays, more on weekends. Supplements: Muscletech protein powder 3 shakes on workout days and 1 on off days with creatine and L-glutamine. Also fishoil pills and glucosimine.
I use the powertec instead of a normal bench because I have no-one to spot me on the heavy stuff.
I've went from 210 to 310 on my bench in just under 11 months.
Any help would be appreciated.
Thanks pixmakerdave