Intramuscular fat in gluteus maximus for different levels of physical activity
Abstract We aimed to determine if gluteus maximus (GMAX) fat infiltration is associated with different levels of physical activity. Identifying and quantifying differences in the intramuscular fat content of GMAX in subjects with different levels of physical activity can provide a new tool to evalua...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-00790-w |
| _version_ | 1819001471639748608 |
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| author | Martin A. Belzunce Johann Henckel Anna Di Laura Alister Hart |
| author_facet | Martin A. Belzunce Johann Henckel Anna Di Laura Alister Hart |
| author_sort | Martin A. Belzunce |
| collection | DOAJ |
| description | Abstract We aimed to determine if gluteus maximus (GMAX) fat infiltration is associated with different levels of physical activity. Identifying and quantifying differences in the intramuscular fat content of GMAX in subjects with different levels of physical activity can provide a new tool to evaluate hip muscles health. This was a cross-sectional study involving seventy subjects that underwent Dixon MRI of the pelvis. The individuals were divided into four groups by levels of physical activity, from low to high: inactive patients due to hip pain; and low, medium and high physical activity groups of healthy subjects (HS) based on hours of exercise per week. We estimated the GMAX intramuscular fat content for each subject using automated measurements of fat fraction (FF) from Dixon images. The GMAX volume and lean volume were also measured and normalized by lean body mass. The effects of body mass index (BMI) and age were included in the statistical analysis. The patient group had a significantly higher FF than the three groups of HS (median values of 26.2%, 17.8%, 16.7% and 13.7% respectively, p < 0.001). The normalized lean volume was significantly larger in the high activity group compared to all the other groups (p < 0.001, p = 0.002 and p = 0.02). Employing a hierarchical linear regression analysis, we found that hip pain, low physical activity, female gender and high BMI were statistically significant predictors of increased GMAX fat infiltration. |
| first_indexed | 2024-12-20T22:49:44Z |
| format | Article |
| id | doaj.art-9d37e6271a90466fa5fa4076f452695e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T22:49:44Z |
| publishDate | 2021-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-9d37e6271a90466fa5fa4076f452695e2022-12-21T19:24:16ZengNature PortfolioScientific Reports2045-23222021-11-0111111010.1038/s41598-021-00790-wIntramuscular fat in gluteus maximus for different levels of physical activityMartin A. Belzunce0Johann Henckel1Anna Di Laura2Alister Hart3Royal National Orthopaedic HospitalRoyal National Orthopaedic HospitalRoyal National Orthopaedic HospitalRoyal National Orthopaedic HospitalAbstract We aimed to determine if gluteus maximus (GMAX) fat infiltration is associated with different levels of physical activity. Identifying and quantifying differences in the intramuscular fat content of GMAX in subjects with different levels of physical activity can provide a new tool to evaluate hip muscles health. This was a cross-sectional study involving seventy subjects that underwent Dixon MRI of the pelvis. The individuals were divided into four groups by levels of physical activity, from low to high: inactive patients due to hip pain; and low, medium and high physical activity groups of healthy subjects (HS) based on hours of exercise per week. We estimated the GMAX intramuscular fat content for each subject using automated measurements of fat fraction (FF) from Dixon images. The GMAX volume and lean volume were also measured and normalized by lean body mass. The effects of body mass index (BMI) and age were included in the statistical analysis. The patient group had a significantly higher FF than the three groups of HS (median values of 26.2%, 17.8%, 16.7% and 13.7% respectively, p < 0.001). The normalized lean volume was significantly larger in the high activity group compared to all the other groups (p < 0.001, p = 0.002 and p = 0.02). Employing a hierarchical linear regression analysis, we found that hip pain, low physical activity, female gender and high BMI were statistically significant predictors of increased GMAX fat infiltration.https://doi.org/10.1038/s41598-021-00790-w |
| spellingShingle | Martin A. Belzunce Johann Henckel Anna Di Laura Alister Hart Intramuscular fat in gluteus maximus for different levels of physical activity Scientific Reports |
| title | Intramuscular fat in gluteus maximus for different levels of physical activity |
| title_full | Intramuscular fat in gluteus maximus for different levels of physical activity |
| title_fullStr | Intramuscular fat in gluteus maximus for different levels of physical activity |
| title_full_unstemmed | Intramuscular fat in gluteus maximus for different levels of physical activity |
| title_short | Intramuscular fat in gluteus maximus for different levels of physical activity |
| title_sort | intramuscular fat in gluteus maximus for different levels of physical activity |
| url | https://doi.org/10.1038/s41598-021-00790-w |
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