If you want to practice jumping, don't just practice squatting or pedaling equipment. After each squat, don't stand still, but cut some movements such as touching height, jumping and running. In a word, heavy movements and high-speed movements should be alternated, and the trained strength should be transferred to jumping. If you simply practice squats, you can only increase your strength, but not necessarily your explosive power. Even if you have great strength, you can't jump fast, let alone high.
This is the secret, so some people can't run fast by practicing leg strength to a great extent, because the simple and large amount of exercise has strangled the muscles, and the strength is great, but it can't be released quickly.
There is another exercise that you can practice jumping, that is, the negative barbell squat jump, which should not be too heavy, but you must try your best to jump high.