Hi, i wonder if anyone can help. I have only been training for two months now and i train 4 times a week for around an hour and a half at a time. I am not looking to lose weight but just to tone up. I do arms and back on mondays an thursdays, and chest an shoulders on tuesdays an fridays. I am not going to chance training on my legs at all at the min because i had a new crucite ligament last year and i'm in quite a physical job anyway. I would like to know if i could train more than this per week???? Any help would be appreciated. Many thanks!!