ECCENTRIC EXERCISES FOR ACHILLES TENDONITIS INSTRUCTIONS: WEEK 1 Day 1 and 2: Perform 1 set of 15 repetitions (1x15), twice a day. Day 3 and 4: Perform 2 sets of 15 repetitions (2 x 15), twice a day. Day 5, 6 and 7: Perform 3 sets of 15 repetitions (3 x 15), twice a day. WEEK 2 – WEEK 12