In a double-blind , randomized trial , 20 males aged between 55 and 70 years were randomly assigned to consume either CrM-carbohydrate ( CHO ) [ 20 g days ( -1 ) CrM + 5 g days ( -1 ) CHO 7 days , then 0.1 g kg ( -1 ) CrM + 5 g CHO on training days ( average dosage of ~ 8.8 g ) ] or placebo CHO ( 20 g days ( -1 ) CHO 7 days , then 5 g CHO on training days ) while participating in a high intensity resistance training program [ 3 sets 10 repetitions at 75 % of 1 repetition maximum ( 1RM ) ] , 3 days weeks ( -1 ) for 12 weeks .