Reliable quantitative assessment of rotator cuff (RC) muscle volumes can be done by reconstructing multiple MRI images of the entire shoulder. However, an equally reliable, but less time-consuming, method is needed for clinical practice. We compared the only method reported for estimation of volume with a new simple MRI technique. Both methods were validated by multiple MRI image reconstruction. We performed MRI scans of 10 cadaver shoulders and determined the cross-sectional areas of RC muscles with two methods, using image analyzing software. In Method 1, the cross-sections were determined on a single image, previously described as a Y-shaped image. In Method 2, the cross-sections were calculated from two images: the Y-shaped and an image located medially, twice the distance from the glenoid articular surface compared to the Y-shaped image. We compared the results of these two methods with the volume of multiple MRI image reconstruction, which took into account all images consisting of RC cross-sections. Pearson correlations for Method 1 were 0.96, 0.94 and 0.75, and for Method 2, 0.96, 0.97 and 0.93 for the supraspinatus, infraspinatus/teres minor and subscapularis muscle volumes when compared with the volumes determined by the multiple image reconstruction method. The Bland-Altman method showed better agreement with multiple MRI image reconstruction, using Method 2, to determine supraspinatus, infraspinatus, and subscapularis muscle volumes (p < 0.001 for each). The mean intra- and inter-observer variabilities of Method 1 was 3.9% and 2.9% and that of Method 2, 3.0% and 1.7%, respectively. Both methods can be used for quantitative assessment of RC muscle volumes. However, Method 2, using two easily reproducible MRI images is more accurate for the evaluation of the supraspinatus and infraspinatus/teres minor muscles and particularly for the subscapularis muscle.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/00016470310018270 | DOI Listing |
Sci Rep
January 2025
Department of Movement Science, Institute of Sports Science, University of Klagenfurt, Klagenfurt, Austria.
Over the last decades, resistance training (RT) has experienced a surge in popularity, and compelling evidence underpins its beneficial effects on health, well-being, and performance. However, sports and exercise research findings may translate poorly into practice. This study investigated the knowledge of Austrian gym-goers regarding common myths and truths in RT.
View Article and Find Full Text PDFJ Phys Act Health
January 2025
Department of Physiotherapy, Faculty of Allied Medical Sciences, Middle East University, Amman, Jordan.
Background: Aerobic exercises (AEs) have gained much interest in managing fibromyalgia (FM). This trial aimed to find out how AEs affect women with FM in terms of lung function, chest expansion, dyspnea, exercise capacity, and quality of life.
Methods: Eighty FM-diagnosed women were allocated randomly into 2 equal-sized groups.
J Sports Sci
January 2025
Metabolism, Nutrition and Strength Training Research Group (GPMENUTF), Department of Physical Education - Federal University of Paraná (UFPR), Curitiba, PR, Brazil.
We investigated the effect of increasing the number of sets per week every fortnight versus performing a constant set volume on muscular adaptations over 12 weeks. Thirty females (RT experience 2.1 ± 1.
View Article and Find Full Text PDFJ Cachexia Sarcopenia Muscle
February 2025
Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.
Background: Chest computed tomography (CT) is a valuable tool for diagnosing and predicting the severity of coronavirus disease 2019 (COVID-19) and assessing extrapulmonary organs. Reduced muscle mass and visceral fat accumulation are important features of a body composition phenotype in which obesity and muscle loss coexist, but their relationship with COVID-19 outcomes remains unclear. In this study, we aimed to investigate the association between the erector spinae muscle (ESM) to epicardial adipose tissue (EAT) ratio (ESM/EAT) on chest CT and disease severity in patients with COVID-19.
View Article and Find Full Text PDFJ Sports Sci
January 2025
Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX, USA.
Unlabelled: Dehydration-induced increased plasma osmolality (P) alters whole body fluid balance which could alter resistance exercise (RE) induced intramuscular (IM) fluid shift.
Purpose: The purpose of the current report was to investigate the effect of dehydration on RE-induced change in whole body fluid balance in resistance trained (RT) men.
Methods: Fourteen RT men performed two identical RE sessions, either in a hydrated (EUHY) or dehydrated (DEHY) state induced by a 24 hr fluid restriction.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!