Biosound Therapy as a Treatment for Long COVID Patients: A Randomized Pilot Trial

Investigators will recruit participants through social media and word of mouth. They will also share the study information with practitioners, businesses, organizations, research departments, universities, and the community. Participants will email or call The Anxiety Relief Center to inquire about participating in the study.

Initial screening procedures will take place using the receptionist script to determine eligibility of participants. Eligible participants who agree to participate in the study will then be asked to come into the office for an intake at a time convenient for them. This appointment will include signing the consent form and the completion of initial assessments: Cambridge Brain Sciences tasks, PHQ9, GAD7, and the COVID-19 Persistent Symptom Questionnaire.

After a participant has completed the initial intake appointment, the participant will be randomly assigned to the treatment or control group using Randomizer.org, a computer-generated randomizer. Each participant will be informed if they were assigned to the treatment or control group. An investigator will schedule two Biosound Therapy sessions per week for four weeks with every participant in the treatment group.

The Biosound Therapy System (BTS) is a system that utilizes biofeedback, vibroacoustic technology, and binaural beats. Vibroacoustic Technology uses sinusoidal, low-frequency, rhythmical pulsing sound waves in conjunction with music. The BTS device does not send electricity through the body; rather, the device uses amplifiers embedded into an adjustable bed to send frequencies between 40 and 70 Hz into the body.

At the beginning of the BTS session, the participant will complete the "Biosound Technologies Pretest" questionnaire and then will be instructed to sit on the BTS platform to begin utilizing HeartMath technology that will collect data on heart rate variability (HRV). An investigator will assist the client in attaching a finger sensor around their index finger as they recline onto the platform so that they are facing a monitor positioned in front of the platform. The monitor digitally portrays the participant's HRV and allows the participant to visually see how the rate of their breath is connected to their HRV. The participant spends a few minutes trying to match their breath rate with a moving icon called a breath pacer that is shown on the monitor. The icon moves up and down at the rate of the client's target heart rate. The monitor also displays corresponding coherence levels, which refer to the stability and balance between the brain and nervous system (HeartMath Institute, 2016). The coherence levels are color coordinated with the levels of low, medium, and high. A high coherence level signifies high stability, balance, and regulation, whereas a low coherence level signifies instability, imbalance, and dysregulation. A person with a high coherence level can operate with high efficiency. Once the participant improves their coherence level and HRV (about 5-10 minutes), an investigator will remove the finger sensor and instruct the participant to put on headphones.