Rules of skipping test: 1. The subjects tried to adjust the length of the rope to a suitable length, and began to jump rope after hearing the start signal of the electronic instrument. The action standard is to shake the rope forward with both feet, and shake the rope in one jump and one cycle. Stop after hearing the end signal from the electronic instrument. The electronic instrument automatically counts the number of times the subjects have finished skipping rope in 1 min, and records the stored results. 2. The rope shaking action must be forward shaking, and the rope shaking action will be judged as a foul, and the number of times earned due to the foul will be deducted. 3. Every time you jump around (once a week), jump around more than once, jump around once without shaking, and every step of jumping around is a foul.

Precautions for skipping rope: 1. If the skipping rope is found to be mixed during the test, the electronic instrument will automatically subtract the invalid times and should continue. 2. During the test, the broken rope can be measured again. 3. The rope for the exam is allowed to use the rope prepared by yourself or the examination room. One last suggestion: because of good physical strength, my stomach doesn't hurt in the first 30 seconds, so the speed must be the fastest. After 30 seconds, there will be physical decline, stomachache, sore feet and so on. Therefore, it is necessary to increase the amplitude of rope swing, adjust the take-off height appropriately, reduce the situation of foot hook and increase stability.