Muscle; FatigueNCT03066102
Muscle Fatigue and Scapular Sensorimotor System
A study testing muscle fatigue in people with Muscle; Fatigue, run by National Yang Ming Chiao Tung University at 1 site in Taiwan.
Trial 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)). Read more about this study
- Who is it for?
- Ages 20 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Muscle; Fatigue
- What is being tested?
- muscle fatigue
- How many people
- 30 participants
- Where
- 1 siteTaiwan
- Study dates
- 1 Jul 2017to 27 Mar 2018
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- no shoulder, cervical, and thoracic spine pain within six months
- negative for subacromial impingement test
- normal range of motion of glenohumeral joint
Who cannot join
- history of dislocation, fracture, or surgery of shoulder joint
- history of central nervous system disorder, rheumatoid arthritis, shoulder osteoarthritis, or cervical radiculopathy
Trial locations and contacts
1 site in 1 country.
About this study
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
- Being tested
- muscle fatigue
- Keywords
- sensorimotor system, scapular joint position sense, fatigue
- Medical subject headings
- Fatigue
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
muscle fatigueOther
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.
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Scapular Proprioception
Test the ability of active re-position the scapula from neutral to 90% range of protraction, and elevation.
Measured: 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.
Measured: 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
use dynamometer to detect the force of maximum isometric voluntary contraction of upper trapezius, lower trapezius and serratus anterior
Measured: 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
use Liberty to detect the motion of spine, humerus, and scapula during shoulder elevation in the scapular plane (scaption)
Measured: 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
Test the ability of muscle activity (upper trapezius, lower trapezius, and serratus anterior) during shoulder elevation in the scapular plane (scaption).
Muscle activation during scaption would divide into muscle activation during maximum voluntary isometric contraction (MVIC), present in percent.
Measured: 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
Test the ability of muscle onset timing (upper trapezius, lower trapezius, and serratus anterior) during shoulder elevation in the scapular plane (scaption).
Onset timing was determined by EMG signals bigger than resting signals plus 3 times standard deviations.
Origin was set at onset of kinematics data of glenohumeral joint.
Measured: through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Feb 2017
- Study start1 Jul 2017
- Primary completion11 Aug 2017
- Study completion27 Mar 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Muscle; FatigueStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Yang Ming Chiao Tung University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Yi-Fen Shih, National Yang Ming Chiao Tung University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03066102
- Sponsor's protocol ID
- YM105067E
- Status last verified
- Jul 2019
- First submitted
- 16 Feb 2017
- Last updated
- 29 Jul 2019
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 29 Jul 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Muscle Fatigue and Scapular Sensorimotor System
- ClinicalTrials.gov ID
- NCT03066102
- Acronym / sponsor ID
- YM105067E
- Conditions
- Muscle; Fatigue
- Keywords
- sensorimotor system, scapular joint position sense, fatigue
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- National Yang Ming Chiao Tung UniversityUniversity, hospital or other
- Study start
- 1 Jul 2017 (actual)
- Primary completion
- 11 Aug 2017 (actual)
- Study completion
- 27 Mar 2018 (actual)
- First posted
- 28 Feb 2017 (actual)
- Results
- Posted 15 Jul 2019
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
Who may qualify
- Ages
- 20 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- no shoulder, cervical, and thoracic spine pain within six months
- negative for subacromial impingement test
- normal range of motion of glenohumeral joint
Key exclusion criteria (2 listed)
- history of dislocation, fracture, or surgery of shoulder joint
- history of central nervous system disorder, rheumatoid arthritis, shoulder osteoarthritis, or cervical radiculopathy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| muscle fatigueModified 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. | Other | – |
Primary outcome
Change From Baseline in Scapular Proprioception
Time frame: through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects
Test the ability of active re-position the scapula from neutral to 90% range of protraction, and elevation.
Change From Baseline in Muscle Activation During Scapular Proprioception
Time frame: through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects
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.
4 secondary outcomes
Change From Baseline in Scapular Muscle Strength
Time frame: 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
Time frame: 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
Time frame: 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
Time frame: through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Jul 2019.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing muscle fatigue in people with Muscle; Fatigue, run by National Yang Ming Chiao Tung University at 1 site in Taiwan.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 29 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 15 Jul 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change From Baseline in Scapular Proprioception (time frame: through fatigue intervention completion, an average of 20 minutes in female subjects and 40 minutes in male subjects). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Jul 2019; AzTrials last refreshed its copy on 29 Oct 2026.