Background: Previous studies have reported that glenohumeral internal rotation deficit (GIRD) may increase the risk of throwing-shoulder injuries. The purpose of this study was to analyze the conditions of the throwing shoulder in professional baseball pitchers with GIRD by comparing with those in pitchers without GIRD.
Methods: In total, 26 male professional baseball pitchers participated in this study. We evaluated passive range of motion (ROM) and isometric muscle strength at internal rotation (IR) and external rotation (ER) at 90° of abduction, as well as the muscle thickness of the supraspinatus (SSP) and infraspinatus (ISP) by ultrasound. The pitchers were divided into 2 groups: those who exhibited a loss of IR of ≥20° in the throwing shoulder (GIRD group) and those who did not (non-GIRD group).
Results: In the GIRD group, the total ROM deficit (throwing side - non-throwing side) (P < .001), the muscle thickness ratio (throwing to non-throwing) of the SSP and ISP (P = .017 and P = .014, respectively), and the muscle strength ratio (throwing to non-throwing) of ER (P = .028) were significantly lower than those in the non-GIRD group. In contrast, the muscle strength ratio (throwing to non-throwing) of IR was significantly higher in the GIRD group than in the non-GIRD group (P = .0064).
Conclusions: We have shown that GIRD has significant correlations with several conditions, such as atrophy of the SSP and ISP, weakness of ER strength, enhancement of IR strength, limitation of total ROM, and throwing side, all of which could be important factors for throwing-shoulder injuries.
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http://dx.doi.org/10.1016/j.jse.2020.10.041 | DOI Listing |
Medicine (Baltimore)
January 2025
Department of Tuina and Rehabilitation Medicine, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China.
Background: Subacromial impingement syndrome (SIS) is a common cause of shoulder pain and dysfunction. Modified posterior shoulder stretching exercises have been proposed as a treatment method aimed at improving shoulder function and reducing pain in patients with SIS. However, the efficacy of these exercises remains controversial, necessitating a systematic meta-analysis to comprehensively evaluate their effectiveness.
View Article and Find Full Text PDFJ Sports Sci
January 2025
Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Lleida (UdL), Zaragoza, Spain.
This study investigated the association between shoulder biomechanics, anthropometric variables and isometric and dynamic forces in the pullover exercise and throwing speed in professional water polo players. 30 elite male players (age: 20 ± 2.7 years; height: 180 ± 5.
View Article and Find Full Text PDFHealthcare (Basel)
December 2024
Interlevel Clinical Management Unit of Physical Medicine and Rehabilitation, Reina Sofía University Hospital, Córdoba and Guadalquivir Health District, 14011 Córdoba, Spain.
: Shoulder pain is a very common health issue among adults, being 8% due to calcifying tendinopathies (CT) of the shoulder. The evolutionary process of this lesion can be classified according to Bianchi Martinoli, depending on the ultrasound appearance. In 50% of cases, with first-line treatments, they resolve spontaneously.
View Article and Find Full Text PDFCureus
December 2024
Department of Surgery, Florida Atlantic University Charles E. Schmidt College of Medicine, Boca Raton, USA.
Subtrochanteric fractures in older patients are typically due to low-energy falls. The standard of care is intramedullary nailing. The Smith & Nephew Trigen Intertan (Memphis, TN, US) is an intramedullary nail with a novel design that incorporates two integrated compression screws.
View Article and Find Full Text PDFCureus
December 2024
Orthopaedics and Traumatology, Kocaeli State Hospital, Kocaeli, TUR.
Background This study hypothesizes that patients with femoral condylar hypoplasia who undergo total knee arthroplasty (TKA) may experience femoral component malrotation and that the surgeon performing the operation may not notice it. The aim is to measure the rotational alignment of the femoral components and assess the functional outcomes in these patients. Materials and methods Between December 2018 and December 2022, a total of 96 knees from 80 patients were evaluated.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!