scholarly journals Decreased postoperative gluteus medius muscle cross-sectional area measured by computed tomography scan in patients with intertrochanteric fractures nailing

2017 ◽  
Vol 25 (3) ◽  
pp. 230949901772794 ◽  
Author(s):  
Mitsuaki Noda ◽  
Yasuhiro Saegusa ◽  
Masayasu Takahashi ◽  
Yuma Takada ◽  
Masahiro Fujita ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Gluteus Medius ◽  
Cross Sectional Area ◽  
Intertrochanteric Fractures ◽  
Sectional Area ◽  
Computed Tomography Scan ◽  
Cross Sectional ◽  
Gluteus Medius Muscle ◽  
Muscle Cross Sectional Area ◽  
Tomography Scan

scholarly journals Light exercise causes adaptive changes in muscles of young Brasileiro de Hipismo horses

2008 ◽  
Vol 38 (5) ◽  
pp. 1313-1318 ◽  
Author(s):  
Flora Helena de Freitas D'Angelis ◽  
Marco Augusto Giannoccaro da Silva ◽  
Carla Braga Martins ◽  
Guilherme de Camargo Ferraz ◽  
João Ademir de Oliveira ◽  
...  
Keyword(s):  
Physical Activity ◽  
Gluteus Medius ◽  
Cross Sectional Area ◽  
Type I ◽  
Fiber Types ◽  
Sectional Area ◽  
Light Physical Activity ◽  
Cross Sectional ◽  
Gluteus Medius Muscle ◽  
Intensity Physical Activity

This study aimed to determine the changes in the Gluteus medius of 4 year-old Brasileiro de Hipismo (BH) horses submitted to light physical activity for 10 months. The study involved 11 horses from the "Nove de Julho" Battalion of the Military Police of São Paulo State (PM-SP). Percutaneous muscle biopsy was performed in horses at maintenance and in those that had participated in routine police work for 10 months with the PM-SP. Fragments of the left Gluteus medius muscle was removed at depths of 20mm and 60mm. To determine the fiber types, the histochemical analyses were performed for myofibrillar adenosine triphosphatase (mATPase) and nicotinamide adenine dinucleotide tetrazolium reductase (NADH-TR). The morphometry of the fibers was performed by calculating the cross sectional area (CSA), relative frequency distribution (F) and relative cross-sectional area (RCSA). After the period of physical activity, type IIA fibers showed an increase in F and RCSA at both depths. The type I fibers showed a decrease in F at a depth of 60mm and the type IIX fibers showed no change in F at the two depths. With regard to the results for RCSA, type I and IIX fibers also did not show alterations after 10 months of light physical activity. Low intensity physical activity produced significant adaptations in the Gluteus medius muscle of horses of the BH breed, including changes in metabolic and contractile properties as evidenced by the increase in the area occupied by type IIA fibers at both depths of the biopsy.

scholarly journals Is there a correlation between upper lumbar disc herniation and multifidus muscle degeneration? A retrospective study of MRI morphology

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Chong Liu ◽  
Jiang Xue ◽  
Jingjing Liu ◽  
Gang Ma ◽  
Abu Moro ◽  
...  
Keyword(s):  
Lumbar Disc Herniation ◽  
Lumbar Disc ◽  
Fatty Infiltration ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Muscle Degeneration ◽  
Multifidus Muscle ◽  
Cross Sectional ◽  
Upper Lumbar Disc Herniation ◽  
Muscle Cross Sectional Area

Abstract Background The purpose of the study is to investigate the correlation between upper lumbar disc herniation (ULDH) and multifidus muscle degeneration via the comparison of width, the cross-sectional area and degree of fatty infiltration of the lumbar multifidus muscle. Methods Using the axial T2-weighted images of magnetic resonance imaging as an assessment tool, we retrospectively investigated 132 patients with ULDH and 132 healthy individuals. The total muscle cross-sectional area (TMCSA) and the pure muscle cross-sectional area (PMCSA) of the multifidus muscle at the L1/2, L2/3, and L3/4 intervertebral disc levels were measured respectively, and in the meantime, the average multifidus muscle width (AMMW) and degree of fatty infiltration of bilateral multifidus muscle were evaluated. The resulting data were analyzed to determine the presence/absence of statistical significance between the study and control groups. Multivariate logistical regression analyses were used to evaluate the correlation between ULDH and multifidus degeneration. Results The results of the analysis of the two groups showed that there were statistically significant differences (p < 0.05) between TMCSA, PMCSA, AMMW and degree of fatty infiltration. The multivariate logistic regression analysis indicated that the TMCSA, PMCSA, AMMW and the degree of fatty infiltration of multifidus muscle were correlated with ULDH, and the differences were statistically significant (P < 0.05). Conclusions A correlation could exist between multifidus muscles degeneration and ULDH, that may be a process of mutual influence and interaction. Lumbar muscle strengthening training could prevent and improve muscle atrophy and degeneration.

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