What was the purpose of the study?

The purpose of this study is to investigate the impact of Jaw Exercisers on brass playing. We aim to understand how regular use of Jaw Exercisers may affect brass musicians' performance and overall musical experience.

Who participated in the study?

Brass musicians of all levels and backgrounds were welcome to participate. However, for this specific study, we focused on horn majors who were consistent practicers and did not have a recital scheduled for the semester.

How long did the study last?

The study lasted six weeks. During this period, participants were asked to engage in specific activities and provide feedback on their experiences.

What were participants required to do?

Participants were divided into two groups: one group used Jaw Exercisers regularly throughout the study period, while the other group served as a control and refrained from using the device. Participants were asked to record their thoughts and experiences periodically and participate in weekly surveys.

How was data collected?

“Brass Performance Research Study - Weekly Survey

Week [Insert Week Number] Feedback

Dear Participant,

Thank you for your participation in the Brass Performance Research Study. Your feedback is invaluable in helping us understand the impact of Jaw Exercisers on brass playing. Please take a few moments to complete this weekly survey to share your experiences and insights.

Weekly Reflection:

1. How often did you use the Jaw Exerciser this week?

   • Daily

   • Several times a week

   • Occasionally

   • Rarely

   • Not at all

2. What were your overall impressions of using the Jaw Exerciser this week?

3. Did you notice any changes in your brass playing abilities or techniques after using the Jaw Exerciser?

4. Were there any specific challenges or difficulties you encountered while using the Jaw Exerciser this week?

5. Any additional comments or feedback you would like to provide about your experience this week?

6. How satisfied are you with your participation in the study so far? (1 = Not satisfied, 5 = Very satisfied)

7. Do you have any questions or concerns about the study moving forward?

What were the results?

Frequency of Jaw Exerciser Usage: Participants reported varied usage frequencies, with 50% using the device several times a week and the remaining 50% using it occasionally.

Overall Impressions: Participants generally found it easier to use the Jaw Exerciser over time. However, one participant reported experiencing soreness but no pain after usage.

Changes in Playing Abilities or Techniques: Participants reported subtle changes in playing techniques, such as reduced pressure from the mouthpiece onto the face and increased endurance. However, soreness was observed immediately after prolonged usage.

Challenges or Difficulties Encountered: Participants encountered challenges such as discomfort when opening the jaw too wide and increased facial heat during rehearsals. Towards the end of the study, multiple participants discovered they had TMJ and dropped out to prevent injury. We did not find that the Jaw Trainers caused our participants to develop TMJ.

Benefits Encountered: Participants provided additional feedback, including potential benefits of regular usage, such as increased endurance, alongside initial fatigue and concerns regarding jaw discomfort.

Conclusion: The weekly survey results provide valuable insights into participants' experiences with Jaw Exercisers, highlighting potential benefits and challenges associated with their usage. Future research should continue to explore the long-term effects and optimal usage protocols of Jaw Exercisers in brass playing. More data is necessary to have a concrete answer, but due to these results, I would not recommend that my students use jaw trainers to improve their playing abilities.