Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to measure your gait speed [title] Evaluate your need for a gait test. [step] Not everyone will need to measure their gait speed. Generally, this test is reserved for those that are suspected to have difficulty walking or have difficulty balancing.

Ending1: It's also typically performed on persons who have long-term generalized heart problems. Gait testing involves assessing both physical condition, mobility, and speed. Ending2: [title] Determine if you need a gait change. [step] Having a gait change after losing your balance can be disruptive to your gait routine. Ending3: [substeps] For most people, a gait speed test won't be overly beneficial. This is especially true if you have no health conditions or any difficulty walking. Ending4: Regardless of your race, education and location, you will need a gait test to help you determine how much speed you need to be able to run on foot. [substeps] With a gait test, you must demonstrate a certain amount of ability to slow down and spring off your foot whenever your gait speed becomes high enough.

Answer format: ending1/ending2/ending3/ending4