Isometric Intervention for Lateral Elbow Tendinopathy

Participants will be randomized into two different groups in 10 participant blocks, meaning after every 10 participants eligible and completing the study, there will be 5 participants assigned to each group. Group 1 will complete a protocol with 10 sets of 10 second isometric holds followed by 10 second rest intervals between sets. Each repetition will be performed as closely to the targeted 30%-40% value. Group 2 will complete a protocol with 5 sets of 20 second isometric holds followed by 20 second rest intervals between sets. Each repetition will be performed as closely to the targeted 30% value. Resistance for both testing conditions will be performed against the examiner's external resistance/against the Microfet hand held dynamometer. Immediately after the intervention, all participants will again repeat their maximal grip on their affected arm using the Jamar hand held dynamometer and will grade their pain level. (The protocol will be identical to the pre testing procedure from above). The pain score and force output will be obtained and documented. Once these steps are complete, testing will cease. All participants will be instructed to follow their referring provider's treatment intervention.