The Effects of Finger Extensor Training on Climbing Performance Compared With Traditional Flexor Training

Inclusion Criteria: * Adults aged 18 years or older * Recreational to advanced rock climbers as defined by the International Rock Climbing Research Association (IRCRA) scale * Climbing experience of at least 1-2 sessions per week for the past 6 months OR a minimum of 2 years of climbing experience * Ability to commit to two 45-minute training sessions per week for 6 weeks * Access to a hangboard or fingerboard and appropriate loading equipment * Ability to provide informed consent * Willingness to refrain from climbing the day prior to testing sessions Exclusion Criteria: * Upper extremity injury (hand, wrist, elbow, or shoulder) within the past 6 months * Participation in a structured or organized hangboard training protocol within the past 4 months * Climbing less than 1-2 times per week during the past 6 months and less than 2 total years of climbing experience * Age under 18 years * Inability to safely perform maximal isometric finger flexion or extension testing * Inability or unwillingness to comply with the study protocol