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Jumping on the trampoline for even a half an hour is a really good workout. You get really tired. The next day, you're feeling it. And you really have to use your core. If you don't, your lower back hurts the next day.
Jumping on the trampoline for even a half an hour is a really good workout. You get really tired. The next day, you're feeling it. And you really have to use your core. If you don't, your lower back hurts the next day.
