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- Title
Construct validity of the Sideways Shoulder Sway Test for Assessment of Sensorimotor Control of the Glenohumeral Joint.
- Authors
Arensdorff Salling, Mads; Rask Andreasen, Kristine; Møller, Merete; Bencke, Jesper
- Abstract
Introduction: Reduced sensorimotor control of the shoulder joint has been proposed as a risk factor for overuse injuries in overhead athletes. Sway length in a one-armed prone plank has been suggested as a method for mea- suring sensorimotor control. The Shoulder Sway Test (SST) has been developed to measure sensorimotor control outside the laboratory. Objective: To assess "known-group validity" of the SST by evaluating the "between-arm difference" in sway in senior volleyball athletes compared to soccer athletes. We hypothesized that volleyball athletes have greater "between-arm difference" in sensorimotor control of the shoulder joint compared to soccer athletes. Study design: Known-group validity study. Methods: 61 adult male and female volleyball and soccer athletes were divided into groups: Volleyball athletes (VA), Volleyball athletes with dominant shoulder pain (VASP) and Soccer athletes (SA). Athletes were tested in an upper limb weight bearing sideways plank with the lower extremities resting on step platforms to the iliac crest measuring sway of the proximal humerus using an iPhone 6 and the application "Physics Toolbox Sensor Suite" with 100 Hz sampling frequency. Sway was defined as a summation of the horizontal acceleration vectors. The tests were done prior to team practice at the athletes' clubs. Results: There was no statistically significant "between-arm difference" in sway for VA (mean = 165.1 [95% CI, - 242.7 ; 572.9]), SA (mean = 406.7 [95% CI, -136.6 ; 950.0]) or VASP (mean = 148.7 [95% CI, -221.9 ; 519.3]). Additionally, there was no statistically significant difference between groups, including VA and SA (mean = -241.6 [95% CI, -888.5; 405.6]) or VA and VASP (mean = 16.4 [95% CI, -621.0 ; 653.7]). Conclusion: The SST lack "known-group validity" in measuring sensorimotor control of the shoulder in adult active volleyball and soccer athletes. Further research is needed to investigate potential validity in other groups.
- Subjects
NORWAY; GLENOHUMERAL joint; MOTOR ability; MULTITRAIT multimethod techniques; SOCCER; RESEARCH methodology evaluation; CONFERENCES &; conventions; RESEARCH methodology; VOLLEYBALL
- Publication
International Journal of Sports Physical Therapy, 2024, Vol 19, Issue 6, p775
- ISSN
2159-2896
- Publication type
Article