Abstract:
:In this study, the myoelectric activity of 12 paraspinal muscles of ten men aged 18-24 was recorded to examine the effects of backrest inclination and lumbar support in relation to driving. In total, 24 test conditions were evaluated over a 3.5-hour period in a single day. These tests were then repeated, changing the sequence over the next 4 days. The results indicate a complex interaction between the thoracic and lumbar regions of the back with the lowest myoelectric activity position of 120 degrees backrest inclination, 5 cm of lumbar support, and 13.5-18.5 degrees of seat inclination. Electromyogramatic (EMG) evidence of fatigue was not identified over a 3.5-hour period. The generally low levels of EMG activity and, presumably, disc pressure present in any seating position suggest that the paraspinal muscle activity may not play the predominant role in disc herniation as it relates to automobile driving.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Hosea TM,Simon SR,Delatizky J,Wong MA,Hsieh CCdoi
10.1097/00007632-198611000-00013subject
Has Abstractpub_date
1986-11-01 00:00:00pages
928-36issue
9eissn
0362-2436issn
1528-1159journal_volume
11pub_type
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