The chair makes these core exercises more accessible to more people.

All you need is a chair ...

Add Yahoo as a preferred source to see more of our stories on Google. This makes ab exercises an important part of any fitness routine. While crunches are a common ab exercise that are often the go-to ...

Sit-up and crunches be gone - just 15 minutes of Pilates can build up core strength, and improve mobility and flexibility ...

And no, it’s not a crunch or a plank.

View post: I Was Crushing My Evening Workouts but Sabotaging My Sleep. Here's How I Fixed My Internal Clock View post: Most People Know Gold’s Gym as the "Mecca" of Bodybuilding. Here’s How the ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...

I’m suspicious of any workout that promises to deliver results in a short amount of time. I’ve never been one of those people who could hit the gym hard for a week and see a change in my body. Any ...

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A strong core helps with posture, balance and stability, and can prevent and reduce back pain. To effectively strengthen your core you need to work the low back, glutes, pelvic floor and the ...