Abstract:
BACKGROUND:Muscle morphology, age and gender may be determinants of muscle strength in older adults. However, very few research studies have directly examined such correlation in the ageing spine. The aim of the study was to examine the correlation between lumbar extensor muscle strength, its muscle fibre angles, thoracolumbar curvature, age and gender in the older and younger adults. METHODS:Muscle fibre angles of lumbar extensor muscles, thoracolumbar curvature and lumbar extensor muscle strength were examined in 26 young (mean age 27.9, SD 5.2) and 26 older (mean age 72.1, SD 5.9) participants. Pearson's correlation was employed to determine the association among lumbar extensor muscle fibre angle, thoracolumbar curvature, age, gender and lumbar extensor muscle strength. Multiple stepwise linear regression analysis was used to identify significant determinants of lumbar extensor muscle strength. RESULTS:The results demonstrated a significant correlation between lumbar extensor muscle strength, muscle fibre angle, age and gender. In the step wise regression analysis, both gender and age were identified as the most robust determinant for lumbar extensor muscle strength in older adults. However, gender was the only determinant of muscle strength in the young. CONCLUSION:These results suggest that the decline in the lumbar extensor muscle strength in older adults was more dependent on age when compared to younger adults.
journal_name
BMC Musculoskelet Disordjournal_title
BMC musculoskeletal disordersauthors
Singh DK,Bailey M,Lee Rdoi
10.1186/1471-2474-14-215subject
Has Abstractpub_date
2013-07-22 00:00:00pages
215issn
1471-2474pii
1471-2474-14-215journal_volume
14pub_type
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