Muscle Vibration and Joint Position Sense

Vibration; Exposure Clinical Trial

Official title:

Acute Effects of Muscle Vibration on the Elbow Joint Position Sense in Healthy Young Men

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05581459
• Other study ID #: RRC-2018-007
• Status: Completed
• Phase: N/A
• Start date: June 6, 2018
• Est. completion date: November 15, 2018

Study information

• Verified date: October 2022
• Source: King Saud University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The present study aimed to investigate and compare the acute effect of local vibration (63 Hz vs 42 Hz frequencies) on the biceps brachii muscles on the elbow joint position sense (JPS) in healthy young men. Forty-five healthy young men aged 19 to 30 years were enrolled in the study. The participants were randomly assigned to receive either 63 Hz (n=15) or 42 Hz (n=15) or sham vibration (control group) (n=15). Participants in the experimental group received five bouts of 1-minute of each vibration exposure localized to the biceps brachii muscle, with a 1-minute rest between the bouts. Active elbow joint position error (in degrees) was selected as an outcome measure to assess elbow JPS. To measure active elbow joint position error, the subject was made to sit on the chair with eyes closed and shoulders in 0 degree of abduction and elbows fully extended. The examiner passively moved the elbow to 90 degrees of flexion (target position) and maintained it for 10 seconds. The subject was requested to memorize the target position. The subject was asked to actively flex the elbow to the target position from the initial starting position (elbow fully extended) and hold it for 5 seconds. Three trials were conducted, with a 30-second rest given between each trial. The target and reproduced angles in each trial were measured using a standard plastic goniometer. The difference between the target and reproduced angles in each trial was calculated to determine active elbow joint position error. Measurements were taken at baseline and immediately after the vibration protocol.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 45
• Est. completion date: November 15, 2018
• Est. primary completion date: September 24, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 19 Years to 30 Years

Eligibility

Inclusion Criteria:

• Healthy young men

Exclusion Criteria:

• history of recent upper extremity surgery

• history of sensory deficits in the upper extremity

• recent upper extremity injury

• undergoing any resistance training

Related Conditions & MeSH terms

• Vibration; Exposure

Intervention

Other:
• 63 Hz Vibration
Vibrations of 63 Hz were applied with handheld vibration device.
• 42 Hz Vibration
Vibrations of 42 Hz were applied with handheld vibration device.
• Sham vibration
Handheld device was applied to the participants without any vibrations.

Locations

Country	Name	City	State
Saudi Arabia	King Saud University	Riyadh

Sponsors (1)

Lead Sponsor	Collaborator
King Saud University

Country where clinical trial is conducted

Saudi Arabia, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Active elbow joint position error	Participants were asked to actively reproduce a target position of the elbow joint.	1 day