The influence of increasing sacroiliac joint force closure on the hip and lumbar spine extensor muscle firing pattern

Takasaki, Hiroshi, Iizawa, Takeshi, Hall, Toby, Nakamura, Takuo and Kaneko, Shouta (2009) The influence of increasing sacroiliac joint force closure on the hip and lumbar spine extensor muscle firing pattern. Manual Therapy, 14 5: 484-489. doi:10.1016/j.math.2008.11.003


Author Takasaki, Hiroshi
Iizawa, Takeshi
Hall, Toby
Nakamura, Takuo
Kaneko, Shouta
Title The influence of increasing sacroiliac joint force closure on the hip and lumbar spine extensor muscle firing pattern
Journal name Manual Therapy   Check publisher's open access policy
ISSN 1356-689X
1532-2769
Publication date 2009-10-01
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.math.2008.11.003
Open Access Status
Volume 14
Issue 5
Start page 484
End page 489
Total pages 6
Place of publication Kidlington, Dorset, United Kingdom
Publisher Churchill Livingstone
Language eng
Abstract The prone hip extension (PHE) test is commonly used in the evaluation of lumbo-pelvic dysfunction. It has been suggested that altered motor control identified by the PHE test can be improved with the application of compression force across the pelvis, to increase force closure on the sacroiliac joint (SIJ). This repeated measure study design investigated the effect of three levels of pelvis compression (0 N, 50 N, 100 N) on the muscle firing pattern during the PHE test in 20 asymptomatic male subjects tested on two occasions 4-weeks apart. The right gluteus maximus, right semitendinosus and bilateral lumbar erector spinae were analyzed using surface electromyography (EMG). Subjects were instructed to perform right hip extension in prone position while maintaining knee-extension in each measurement condition. Compared with the onset of the semitendinosus muscle, gluteus maximus became active 263.3 ± 99.5 ms later with no pelvic compression, 183.5 ± 77.9 ms later with 50 N compression, 91.5 ± 49.7 ms later with 100 N compression. While significant differences (α = 0.05) were found in EMG onset for gluteus maximus under different levels of pelvis compression, this was not the case for the erector spinae, which had an inconsistent pattern of temporal onset and was not influenced by the level of pelvis compression force.
Keyword Muscle firing pattern
Sacroilliac joint
Gluteus maximus
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Available online 31 December 2008

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Health and Rehabilitation Sciences Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 19 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 02 Mar 2011, 06:47:18 EST by Dr. Hiroshi Takasaki on behalf of School of Health & Rehabilitation Sciences