so far this is the best resource I have found. The utilization of intramuscular fat stores is different for men and women. There may be a connection between insulin resistance and IMTG stores. Endurance trained athletes have high stores of IMTG but remain insulin sensitive. Individuals with type 2 diabetes may also have high amounts of IMTG. The factors that control IMTG accumulation and use remain controversial and in some cases unproven. More research is needed to shed light on the subject. Some sources suggest that utilizing fast twitch muscle fibers(sustaining exercise at 50-70% of maximum intensity) will stimulate more use and in turn more accumulation of intramuscular fat.