Please choose the correct ending to complete the given sentence: Health: [header] How to prevent acl injuries in basketball [title] Reduce your risk of injury by warming up. [step] This part of the program requires that you mark off a distance of 50 yards (45.7 m). This can be done with flags, cones, even household objects.

Ending1: Do the following three warm up jogs : [substeps] Jog the 50 yards (45.7 m). Jog slowly and easily to allow your muscles to engage. Ending2: After you have warmed up, take a 5-10 minute break before running onto the field. If you consistently run towards the goal using the flags, you should not need to do it again. Ending3: Switch your distance to 40 yards (56.6 m) each time you make a goal or shoot. Don't forget to cool down every time you post a goal. Ending4: [substeps] Make sure that the equipment you used is not so hot that you'll burn your wrists. A player should be walking five yards (4.5 m) in one direction for every three yards (4.7 m).

Answer format: ending1/ending2/ending3/ending4