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- 12,853 Lance Eliakim Sotto
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- Plank Challenge 4 minutes
- iOS Appar: Hälsa och fitness Av: Bo Kalvslund
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- Poäng: 1 + 423 (4.7) Version: 4.4 BUILD TO A 4-MINUTE PLANK IN 5 WEEKS Transform your core with the Plank Challenge a proven 5-week program that takes you from beginner to holding a 4-minute plank. THE CHALLENGE Week ... ⥯