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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT04869241
Other study ID # BundangCHA
Secondary ID
Status Withdrawn
Phase N/A
First received
Last updated
Start date May 3, 2021
Est. completion date May 28, 2021

Study information

Verified date May 2021
Source Bundang CHA Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

To investigate change of shoulder muscles by measuring muscle activity according to the position of the backpack.


Description:

Most of modern people, including students and office workers, wear backpacks for a considerable amount of time. There have been prior studies on the change in muscle activity around the spine and shoulders muscles according to the weight of the backpack, but studies on the change in muscle activity according to the direction of the bag are insufficient. So this study is to evaluate the effect on the musculoskeletal system by comparing the activity of the muscles around the shoulder according to the anterior or posterior wearing of the backpack. Muscles around the shoulder are composed of: Serratus anterior, trapezius(upper and lower) which control scapular movement and deltoid muscles which activate shoulder abduction directly. We would like to focus change of these muscles's activities when carrying a backpack according to the anterior or posterior direction and bilateral or unilateral. To measure muscle activity, eight-channel electromyography (EMG) Using Nicolet EDX (Natus Medical Inc., San Carolos, CA, USA), surface EMG (sEMG) signal were used.


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date May 28, 2021
Est. primary completion date May 28, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 20 Years to 59 Years
Eligibility Inclusion Criteria: - Healthy adults from 20s to 50s Exclusion Criteria: - Restriction of joint motion range of shoulder and elbow - Hisory of upper limb surgery in the past 6 months - If there is an external wire such as a temporary external pacemaker or central line guide wire

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
surface EMG
Carrying backpacks forward or backward

Locations

Country Name City State
Korea, Republic of Bundang CHA Medical Center Seongnam-si Gyeonggi-do

Sponsors (1)

Lead Sponsor Collaborator
Bundang CHA Hospital

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type Measure Description Time frame Safety issue
Primary Root mean square of each muscle activation Quantification of muscle activity through study completion, an average of 1 year
See also
  Status Clinical Trial Phase
Completed NCT01636115 - Validation of Muscle Strength Testing for Pectoralis Major N/A
Enrolling by invitation NCT04879901 - Changes in Shoulder Muscle Activation According to the Methods of Carrying Backpacks N/A
Recruiting NCT05702593 - Immediate Effects of Hamstring Stretching Alone or Combined With Myofascial Release N/A