It's great for protecting your lower back, too ...
Hate sit-ups and crunches? Build a stronger core by adding these four trainer-approved standing exercises to your walk.
Fitgurú on MSN
Crunches vs. sit-ups: Which core exercise delivers better results without hurting your back?
Both exercises strengthen your core, but choosing the right one could improve your results while reducing the risk of back ...
Three 20-minute sessions and a simple progression system – this is how to make serious gains when you’re pressed for time ...
Plus, trainer-backed tips to get your butt in gear safely.
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