AI Article Synopsis
- The study aimed to establish baseline measurements for the volume and fat content of the gluteus medius (GMed) and minimus (GMin) muscles in healthy individuals, while also assessing how these measurements are influenced by factors like age, gender, and leg dominance.
- A total of 80 healthy volunteers (40 women and 40 men, ages 20-62) underwent MRI scans to measure the normalized volumes and fat-signal fractions of these muscles, resulting in specific average metrics for both genders without significant differences across most age groups.
- The findings concluded that muscle volume and fat content do not significantly vary with age or gender, but some variation in fat content was noted in younger females compared to males and by leg dominance in females
Article Abstract
Objective: To determine normative values for volume and fat content of the gluteus medius (GMed) and minimus (GMin) muscle in healthy volunteers and to evaluate their dependence on age, gender and leg dominance.
Materials And Methods: The IRB approval was obtained for this study. 80 healthy volunteers (females, 40; males, 40; age range 20-62 years), divided into four age groups, were included. Fat- and water-signal-separated MR images of the pelvis were acquired on a 3.0 T MR with a 3-point mDIXON sequence. Normalized volume and fat-signal fraction (FSF) of the GMed (ViGMed, FSFGMed) and GMin (ViGMin, FSFGMin) muscles were determined.
Results: The overall mean volumes (normalized) and FSF ± SD: ViGMed 105.13 ± 16.30 cm(3); ViGMin 30.24 ± 5.15 cm(3); FSFGMed 8.13 ± 1.70 % and FSFGMin 9.89 ± 2.72 %. Comparing different age subgroups within each gender no significant differences were found concerning the volumes and FSFs (except FSFGMin in male subgroup aged 20-29 versus 50-62 years, P = 0.014). Comparing FSFs differences between the two genders, only in 20-29 years subgroup, FSFGMed (P =0.003) and FSFGMin (P =0.002) were greater in female. Volume differences between the two legs were not significant (P > 0.077); FSFGMed and FSFGMin (P =0.005 for both) were significantly lower in the dominant leg in female but not in male group (P = 0.454 for FSFGMed and P = 0.643 for FSFMin).
Conclusion: No age dependency was evident for volume normative data for GMed and GMin and normative data for FSF values showed no age- or gender dependency.
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| http://dx.doi.org/10.1007/s00256-015-2325-z | DOI Listing |
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