Article
Version 1
Preserved in Portico This version is not peer-reviewed
Clinical Methods to Assess and Profile Shoulder Strength in Competitive Surfers
Version 1
: Received: 3 May 2018 / Approved: 3 May 2018 / Online: 3 May 2018 (13:04:08 CEST)
A peer-reviewed article of this Preprint also exists.
Furness, J.; Schram, B.; Cottman-Fields, T.; Solia, B.; Secomb, J. Profiling Shoulder Strength in Competitive Surfers. Sports 2018, 6, 52. Furness, J.; Schram, B.; Cottman-Fields, T.; Solia, B.; Secomb, J. Profiling Shoulder Strength in Competitive Surfers. Sports 2018, 6, 52.
Abstract
The shoulder region has the highest incidence of acute injuries in the sport of surfing. Little is known about the strength profile at the shoulder in a surfing cohort. The primary aim of this study was to establish the reliability of a rotator cuff strength testing procedure for surfers with a secondary aim of providing a profile of internal (IR) and external rotation (ER) strength in a competitive surfing cohort. Shoulder IR and ER isometric strength was measured using a hand-held dynamometer in 13 competitive surfers. Intra-class coefficient values ranged from 0.97 to 0.98 for intra rater reliability and were lower for inter rater reliability ranging from 0.80 to 0.91. Normalised force (N/Kg) for IR strength was significantly greater than ER strength bilaterally (dominant, p= 0.007, non-dominant, p<0.001). No significant differences (p< 0.79) were found in IR strength (N/Kg) between the dominant and non-dominant arms. ER strength (N/Kg) was significantly weaker on the non-dominant arm compared with the dominant arm (p<0.02). The non-dominant arm ER to IR ratio (0.82 ± 0.15) was significantly (p=0.025) lower than the dominant (0.88 ± 0.14) The current procedure is reliable with the same clinician, results indicate musculature asymmetry specific to the external rotators.
Keywords
surfing; rotator cuff; shoulder; strength ratio; profiling; assessment
Subject
Medicine and Pharmacology, Orthopedics and Sports Medicine
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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