Not sit-ups, planks, or crunches: I do this simple Pilates exercise every single day to build a strong and stable core and work on my hip flexor mobility

While exercises like sit-ups and crunches work the rectus abdominis, or "six-pack" muscles, this simple-looking exercise ...
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Give Your Workout a Twist! The Best Fitball Exercises for Your Whole Body

Incorporating the Fitball into your routine not only adds a fun twist but also increases the intensity and effectiveness of each move by introducing instability, forcing your stabilizing muscles to ...
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5 Pilates ring exercises to target the inner thighs and core

For more at-home Pilates routines from Raven Ross — plus meal plans, fitness challenges, walking podcasts and inspiration — download the Start TODAY app! If you're looking for affordable, portable and ...