Fatigue; Muscle, Heart, Shoulder Pain, Sport Injury
Conditions
Brief summary
The purpose of this study is to assess the efficacy of dynamic tape in prevent shoulder muscle fatigue.
Detailed description
After being informed about the study and the potential of risk, all participants will undergo a screening to determine eligibility for study entry and giving written informed consent. We will include 20 participants who have pitch 100 times with dynamic taping or shame taping in randomized sequence. There must be more than 2 weeks resting between 2 test. We will test maximal force in shoulder flexion, extension, abduction and adduction before and after test. We also record spins and speed of baseball for performance outcome. To our hypothesis, we suggest dynamic taping could decrease the arm fatigue after long-term pitching.
Interventions
Use sham type on the pitching shoulder
Use dynamic type on the pitching shoulder for supporting internal rotation
Sponsors
Study design
Eligibility
Inclusion criteria
* more than 20 years old * amateur baseball player * could tolerate pitching 100 times
Exclusion criteria
* shoulder pain who could not tolerate 100 pitching * upper limb surgery history * Allergy to topical agent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline in shoulder force after pitching | baseline and 2 weeks | The dynamometer is a validated instrument assessing shoulder and arm force which is recorded in kilogram |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change of pitching velocity during pitching | baseline and 2 weeks | The speed dun is a validated instrument assessing pitching velocity which is recorded in kilometer per hour |
| Change of pitching spin rate during pitching | baseline and 2 weeks | The STRIKE baseball is a new instrument assessing pitching spin rate and axis which is recorded in rate per minute |
| Change of delayed onset muscle soreness after pitching | baseline, 1 Day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 14 days | Visual analog scale is a validated self-record measure to assess delayed onset muscle soreness, which score range is 0 to 10. |
Countries
Taiwan