Upper Extremity Electromyography During Bouldering: Research Report

Background: Despite the growing popularity of bouldering, little is known about degree and variabilityof muscle activation that occurs while solving bouldering problems. The purpose this study was to explorethe electromyography eight upper extremity trunk muscles during a session indoor whilecompleting four different problems.Methods: Eleven climbers with self-reported ability climb V-scale V4 problem grade or higher regularlyboulder at least two days/week for six months participated in study. Electromyography used torecord activity flexor digitorum superficialis, extensor carpi radialis longus, biceps brachii, tricepsbrachii, anterior deltoid, middle posterior latissimus dorsi.Conclusion: highest average EMG across all climbs occurred superficialis,latissimus dorsi, brevis. Significant differences were noted betweenthe deltoid superficialis triceps brachii andflexor dorsi.This information may be useful developing strength conditioning program