Exercise balls — also known as physioballs, Swiss balls, or fit balls — are large, vinyl balls you can use to strengthen and stretch your body, improving core stability and balance .9 Şub 2007
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When used properly, stability balls can strengthen the core (abdominal and lower back muscles) . These muscles are used to perform daily activities. A strong core helps to protect the back and stabilize the whole body, including the spine, pelvis, hips and shoulders. Improve balance.10 Mar 2016
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