9d
Hosted on MSNI tried Anne Hathaway's trainer's plank challenge—here's why I'll be adding it to my workoutsThat's why I was intrigued to see a plank challenge that celebrity trainer Monique Eastwood shared on Instagram. Eastwood's ...
Discover how your plank hold time compares to others. Learn the scientifically proven benchmarks for core strength and how to improve your plank endurance.
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