“I underestimated how sore I would be.” — Erica Time to dust off your exercise ball! Erica’s new workout is upper body and core training with a twist. You’ll be targeting the back, shoulders, triceps, biceps, and chest — but by adding the unstable surface of the ball, you’ll also recruit core stability. 🔥 https://gofb.info/UBPhysioball #shorts #physioball #exercisetips #exercisemotivation #funworkout

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