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This 30-Day Plank Challenge Will Transform Your Core in 4 Weeks

Hips

This 30-Day Plank Challenge Will Transform Your Core in 4 Weeks

Health.com - Rozalynn S. Frazier

Try our 30-day challenge and track your progress! This 30-day challenge is designed to help you progress the amount of time you are able to hold a …

View on health.com