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Clinical Trial Summary

The aim of this study was to evaluate the influence of the intensity of Isometric Contraction of shoulder external rotators, comparing the effect of a high-level IC (80% maximal voluntary isometric contraction) versus a low-level Isometric Contraction (20% maximal voluntary isometric contraction) on pain intensity, pain thresholds, and function in chronic pain shoulder patients.


Clinical Trial Description

This was a single-blinded, randomized parallel study. Eighty-two patients presenting chronic musculoskeletal shoulder pain were allocated to two groups. Patients in group 1 (n= 41) received a five-series Isometric Contraction of shoulder external rotators at 20% maximal voluntary isometric contraction, while patients in group 2 (n= 41) received similar protocol but the intensity of contraction was set at 80% maximal voluntary isometric contraction. In both cases, each series of IC was done until exhaustion or up to a maximum of 5 minutes. Patients received five sessions of treatment during a two-week period. Outcome measures included muscle pain sensitivity (pressure pain thresholds) and pain intensity (pain intensity numerical rating score), and shoulder function (Constant Score). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04475965
Study type Interventional
Source Universidad Católica del Maule
Contact
Status Completed
Phase N/A
Start date December 1, 2018
Completion date October 5, 2019

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