When training for muscular power, what percentage of an individual’s 1 repetition maximum should he or she be training within? a. 30- 70% b. 70->85% c. 65-<75% d. 65-85% Power is force x velocity. There is a specific window in which both of these factors can be maximized, and this window is between approximately 30-70% of a person’s 1RM Power is force x velocity. There is a specific window in which both of these factors can be maximized, and this window is between approximately 30-70% of a person’s 1RM