IMO the best way to improve Cardio is to skip. If you haven't trained Cardio, I'll be impressed if you could skip for 15 minutes nonstop. Start with that, every other day. And then Do it every day.. Then every day for 20 minutes.. And keep going up. Also, I suggest Pushups on your palms.. Then when you can do 25 of them easy. Go to your fingertips.. Then, when you can do 25 easy, take away one finger.. ANd keep going until you are only on your thumb...
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