“The race has always been on to firstly predict, then inoculate against, back pain. A test known as the “Sorensen test” based on the work of Hansen in 1964, has been popular since 1984.
According to Demoulin et al 2006 ”The test consists in measuring the amount of time a person can hold the unsupported upper body in a horizontal prone position with the lower body fixed to the examining table”
The test is accepted in its discriminative validity, reproducibility, and safety. However debate continues to surround its ability to predict low back pain. No firm explanation, beyond “women rock” , has been offered as to why “chicks” can hold it longer than guys.
Naturally motivation and discomfort tolerance are confounding factors.
A interesting review is available in PDF form at Isometric back Extension tests: a Review of Literature Maureau et al Journal of Manipulative and Physiological Therapeutics Volume 24 • Number 2001, But in essence,this report says this….(yawn….)
“For men, the mean endurance time is 84 to 195 seconds; for women, it is 142 to 220.4 seconds. For subjects with LBP, the mean endurance time range is 39.55 to 54.5 seconds in mixed-sex groups 80 to 194 seconds for men, and 146 to 227 seconds for women” whether thats remotely useful lm not sure, but if you suffer or are prone to lower back pain, (you tend to know by your appalling posture), im going to suggest you move this figure up.
Demoulin C, Vanderthommen M, Duysens C, Crielaard JM. 2006. Spinal muscle evaluation using the Sorensen test: a critical appraisal of the literature. Joint Bone Spine. 2006 Jan;73(1):43-50.”
My name is Andrew Stemler. Im a london personal trainer working in Bethnal Green E2 and the City of London