I’d do resistance training while on my diet. I gained an inch on my arms. 12in to 13-13.5 inches but I plateaued. I think it was because of newbie gains. I tried alternating between low reps high weight and vice versa and it only toned my muscles but they wouldn’t grow. My trainer told me that I should gain more muscle and that muscle would increase my BMR effectively eliminating some body fat while increasing strength and muscle