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Hardin Simmons University
Isometric strength and dynamic back extensor endurance unrelated
April 10th, 2005
Isometric strength and dynamic back extensor endurance are unrelated in 6- to 10-year-old children. According to a study from the United States, "This study assessed the correlation between back extensor isometric force and dynamic endurance in 69 children 6 to 10 years of age. Subjects were positioned prone with legs and hips supported and restrained on two folded six-inch mats. Forty-two subjects (20 girls; 22 boys) performed three five-second isometric back extension efforts against a calibrated dynamometer and peak force values were averaged. An additional 27 subjects (9 girls; 18 boys) also performed a dynamic (0 degrees to >45 degrees flexion-->0 degrees)...
Source: Aging & Elder Health Week (2005-04-10)
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