One and Done Workout is a comprehensive weight loss plan based on sprint interval training that requires you to do special movements for a session of 7 minutes only. According to its official website, it comes from Meredith Shirk, a professional trainer who has designed it chiefly for women. The winning points? It’s easy to follow, doesn’t take much of your time and energy, contains targeted exercises especially for women, and is budget-friendly in terms of pricing as well.

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