Muscle Fatigue and Scapular Sensorimotor System

NCT03066102 | Completed Results

• 1 other identifier: YM105067E
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

The aims of this study are to investigate the effects of scapular muscle fatigue on scapular joint position sense and neuromuscular performance (scapular muscle strength, the kinematics data and muscle activity of shoulder during scaption (arm elevation in the scapular plane)). The investigators hypothesize that scapular muscle fatigue would increase scapular reposition error and affect neuromuscular performance of the scapular during scaption.

Conditions

Muscle; Fatigue

Keywords

sensorimotor system; scapular joint position sense; fatigue

Outcome Measures

Primary Outcomes (2)

• Change From Baseline in Scapular Proprioception

  Test the ability of active re-position the scapula from neutral to 90% range of protraction, and elevation.

  through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects

• Change From Baseline in Muscle Activation During Scapular Proprioception

  Test the ability of muscle activation (upper trapezius, lower trapezius, and serratus anterior) during active re-position the scapula from neutral to 90% range of protraction, and elevation. Muscle activation during active re-position would divide into muscle activation during maximum voluntary isometric contraction (MVIC), present in percent.

  through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects

Secondary Outcomes (4)

• Change From Baseline in Scapular Muscle Strength

  through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects

• Change From Baseline in Shoulder Kinematics Data During Shoulder Elevation in the Scapular Plane

  through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects

• Change From Baseline in Scapular Muscle Activity During Shoulder Elevation in the Scapular Plane

  through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects

• Change From Baseline in Scapular Muscle Recruitment Timing During Arm Elevation in Scapular Plane

  through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects

Interventions

muscle fatigue OTHER

Modified push-up plus exercise: the participants first supported by both knees and the single elbow, and then performed sustained scapular protraction for three minutes with ten repetitions in males and two minutes with five repetitions in females with forty-five seconds rest between.

Eligibility Criteria

• Age: 20 Years - 40 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• no shoulder, cervical, and thoracic spine pain within six months
• negative for subacromial impingement test
• normal range of motion of glenohumeral joint

You may not qualify if:

• history of dislocation, fracture, or surgery of shoulder joint
• history of central nervous system disorder, rheumatoid arthritis, shoulder osteoarthritis, or cervical radiculopathy

Sponsors & Collaborators

• National Yang Ming Chiao Tung University: lead

Study Sites (1)

National Yang Ming University

Taipei, 11221, Taiwan

Location

MeSH Terms

Conditions

Fatigue

Interventions

Muscle Fatigue

Condition Hierarchy (Ancestors)

Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Results Point of Contact

• Title: Dr. Yi-Fen Shih
• Organization: National Yang Ming University

yfshih@ym.edu.tw

+886-2-28267340

Publication Agreements

• PI is Sponsor Employee: No
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: OTHER
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: February 16, 2017
• First Posted: February 28, 2017
• Study Start: July 1, 2017
• Primary Completion: August 11, 2017
• Study Completion: March 27, 2018
• Last Updated: July 29, 2019
• Results First Posted: July 15, 2019

Record last verified: 2019-07

Locations

TW (1)