Association Between Acromiohumeral Distance, Shoulder Rotational Strength, And Range of Movements in University Basketball Players: A Cross-Sectional Study

Authors : Leyla Eraslan, Ozan Yar, İrem Düzgün

Pages : 504-520

Doi:10.21020/husbfd.1400766

View : 36 | Download : 32

Publication Date : 2024-08-02

Article Type : Research Paper

Abstract :Objective: Limited information exists regarding the sports-related adaptations at the shoulder complex in university basketball players. Therefore, this study aimed to evaluate the shoulder rotational muscle strength, range of movements (ROM), and acromiohumeral distance (AHD) values to interpret side-to-side differences regarding injury risk factors in throwing and non-throwing shoulders of university basketball players. Materials and Methods: Twenty university basketball players (10 males, 10 females; age=20.2±1.8 years; body mass index=21.1±2.22 kg/m2) were included. AHD values, isometric and concentric strengths of shoulder external (ER) and internal rotation (IR), and shoulder ER, IR, and total rotational ROM were measured bilaterally. Results: AHD was greater on the throwing side at 0° (p<0.001) and 60° of shoulder abduction positions (p<0.001). However, throwing shoulders demonstrated more AHD reduction from 0° to 60° of shoulder abduction (p=0.01). We found greater isometric ER strength (p=0.006), ER/IR ratio (p=0.001), concentric ER strength (p<0.001), concentric ER/IR ratio (p<0.001), and ER ROM (p<0.001) in the throwing shoulders. Besides, AHD was correlated with isometric ER strength on the throwing side (p=0.012, r=0.552) and non-throwing side (p=0.041, r=0.461), also, isometric ER/IR strength ratio on the throwing side (p=0.017, r=0.526) and the non-throwing side (p=0.013, r=0.545). Conclusion: University basketball players demonstrated stronger ER muscle strength, higher ER/IR strength, increased ER ROM, and wider AHD values on the throwing shoulders. Moreover, greater ER muscle strength and ER/IR strength ratio were associated with greater AHD.
Keywords : omuz eklemi, kas kuvveti, subakromiyal boşluk, baş üstü sporcu