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Centre for Orthopaedics
Suite 10-33/34/35 Mount Elizabeth Novena Specialist Centre
38 Irrawaddy Road
Singapore, 329563, Singapore
Ph: (65) 6684 5828
Fax: (65) 6684 5829
sharon@cfo.com.sg






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Can the strength of back muscles actually be measured?

Yes, but no exact values are considered “normal” by age, weight, gender, or range of motion. Instead, a range of values is used, given as ratios. Some research has provided strength ratios for men compared to women. Researchers using a computer-based device called a dynamometer show that women can exert about 50 percent of their body weight. This force is about 65 to 75 percent in men. All the people in the study had a history of back pain. More studies of maximum strength are needed both on “normals” (people without back problems) and those with a history of chronic back pain.

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