| Title |
Does Muscle Atrophy and Fatty Infiltration Plateau or Persist in Chronic Spinal Cord Injury?
|
|---|---|
| Published in |
Journal of Clinical Densitometry, July 2017
|
| DOI | 10.1016/j.jocd.2017.06.001 |
| Pubmed ID | |
| Authors |
Cameron D. Moore, B. Catharine Craven, Lehana Thabane, Alexandra Papaioannou, Jonathan D. Adachi, Lora M. Giangregorio |
| Abstract |
Atrophy and fatty infiltration of lower extremity muscle after spinal cord injury (SCI) predisposes individuals to metabolic syndrome and related diabetes and cardiovascular disease. The objective of this study was to prospectively measure changes in muscle atrophy and fat content of distal lower extremity muscles and explore related factors in a cohort of adults with chronic SCI and diverse impairments. Muscle cross-sectional area and density were calculated from peripheral quantitative computed tomography scans of the 66% site of the calf from 70 participants with chronic SCI (50 male, mean age 49 years, C2-T12, American Spinal Injury Association Impairment Scale A-D) at study enrollment and annually for 2 years. Mixed-model repeated measures analysis of variance (rANOVA) examined longitudinal changes in muscle area and density, and regression analyses explored factors related to muscle changes using 16 potential correlates selected a priori. A high degree of individual variation in muscle area and density change was observed over 2 years (range: 8.5 to -22.6 cm(2); 6.4 to -8.6 mg/cm(3)). Repeated measures analysis of variance revealed significant reductions in muscle area (estimated mean difference [95% confidence intervals] -1.76 [-3.29 to -0.23]) cm(2), p = 0.025) and density (-1.04 [-1.94 to -0.14] mg/cm(3), p < 0.024); however, changes in area were not significant with outliers removed. Regression analyses explained a small proportion of the variability in muscle density change; however, none of the preselected variables were significantly related to changes in muscle density after post hoc sensitivity analyses. Lower extremity muscle size and fat content may not reach a "steady-state" after chronic SCI. Progressive atrophy and fatty infiltration of lower extremity muscle may have adverse implications for metabolic syndrome and cardiovascular disease risk and related mortality after chronic SCI. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 51 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 51 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 7 | 14% |
| Researcher | 7 | 14% |
| Student > Bachelor | 6 | 12% |
| Student > Master | 6 | 12% |
| Student > Doctoral Student | 2 | 4% |
| Other | 3 | 6% |
| Unknown | 20 | 39% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 10 | 20% |
| Nursing and Health Professions | 6 | 12% |
| Biochemistry, Genetics and Molecular Biology | 3 | 6% |
| Neuroscience | 3 | 6% |
| Immunology and Microbiology | 2 | 4% |
| Other | 4 | 8% |
| Unknown | 23 | 45% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 July 2017.
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#20,660,571
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Outputs of similar age from Journal of Clinical Densitometry
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