Have you taken part in the viral chair challenge? Find out what it may say about your level of fitness!

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The challenge involves placing a chair against a wall, taking 3 steps backward and leaning over the chair at 90 degrees, and then with your knees still bent, lifting the chair to your chest, and finally standing up straight while still holding the chair.

Kinesiologist Ken Best explains to The Doctors why this challenge is easy for some and difficult for others. He says this challenge is often easier for women because many have a better lower center of gravity. In an informal study at his office, 50 percent of his male patients were able to complete the challenge, and he says it is mainly about being able to engage the hamstrings and glutes.

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He notes if someone is unable to successfully perform this challenge it could be a sign you need to work on your hamstrings and glutes. The kinesiologist says having weak hamstrings and glutes can lead to problems with the back, hips, and knees. 

Are you looking to strengthen this area of the body? In the video above, check out Ken demonstrating a few exercises that are going to help strengthen and lengthen this important part of the body.