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更新日期：2018-01-26
檔案大小：3.5M
目前版本：1.1
版本需求：Android 4.4 以上版本
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30 Days Plank Challenges
For Absolute Beginners
Start with only 15 seconds plank of 3 reps (5+5+5). Gradually train yourself to achieve 50 seconds plank after 30 days.
For Advanced Levels
If your goal is to achieve 2 min plank, choose this level. Start with easy 20 sec plank and gradually train yourself for 2 min.
For Expert Users
Already have a strong core, choose this level. Start with 30 sec plank for the first day. Train yourself to plank for 5 min at the end of the challenge.