Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to improve your stride [title] Count your steps per minute. [step] Time yourself running for 60 seconds. As you run, count how many times your feet strike the ground.

Ending1: Running a long distance is an excellent way to improve how often you plant your feet. [substeps] To give this part of your stride practice, try to catch your breath as you run. Ending2: Calculating how many steps you take per minute will give you an idea of what your cadence currently is and how much you need to improve. Most runners have a cadence of 150-170 steps per minute, while elite runners will often have a cadence of over 180. Ending3: You should not place 1 foot in front of another foot because that will only restate the undesirable behavior. [substeps] Add about 2 to 6 steps (1 for each foot) to start and cover any low marks with dash staff. Ending4: Too many steps will stop you and can slow you down and make your pace unsafe. [substeps] 30 to 60 second sessions count the steps in one hour.

Answer format: ending1/ending2/ending3/ending4