CompletedNot Applicable

Short Interventions to Prevent Trapezius Muscle Fatigue in Computer Work

30 participantsStarted 2016-03-14

Plain-language summary

This study is expected to demonstrate that during experimental days of seated computer work sustained and focalized low-level muscle activity contributes to the development of long-lasting fatigue effects (and thus possible disorder). On days with and without frequent interruptions, signs of fatigue and the activity pattern of the trapeze muscle are registered and compared using electromyographic registrations of the trapezius muscle.

Who can participate

Age range

18 Years – 40 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * healthy experienced computer workers Exclusion Criteria: * chronic pain (more than 30 days within the last 12 months according to the Nordic Questionnaire (Kuorinka et al 1987); * pathologies of the neck, * prior and actual shoulder or neck pain caused by an accident, * skin disease in the neck or shoulder area, * BMI \> 30, * sleep disorders (e.g. apnea, restless legs syndrome), * use of medications such as psychotropic drugs, muscle relaxants or analgesics within the last 3 days prior to the experiment, * pregnancy. * any shoulder/neck pain on the day before the experiment.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

EMG profile recorded by a single bipolar electrode: Rest-time

Timeframe: Continuously from the beginning to 370 min (end) of the simulated working activity of both the control and intervention day

Spatio-temporal distribution of EMG activity: Area of muscle activity

Timeframe: Continuously from the beginning to 370 min (end) of the simulated working activity of both the control and intervention day

Muscle fatigue: Change of muscle twitch

Timeframe: Change between 30 min before the beginning of the simulated working activity and 30 min after the end of the simulated working activity of both the control and intervention day

Muscle fatigue: Change of dynamic force control accuracy

Timeframe: Change between 30 min before the beginning of the simulated working activity and 30 min after the end of the simulated working activity of both the control and intervention day

Trial details

NCT IDNCT03863340

SponsorSwiss Federal Institute of Technology

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2016-09-05

View on ClinicalTrials.gov More Muscle Fatigue trials

Plain-language summary

Who can participate

Age range

18 Years – 40 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

EMG profile recorded by a single bipolar electrode: Rest-time

Timeframe: Continuously from the beginning to 370 min (end) of the simulated working activity of both the control and intervention day

Spatio-temporal distribution of EMG activity: Area of muscle activity

Timeframe: Continuously from the beginning to 370 min (end) of the simulated working activity of both the control and intervention day

Muscle fatigue: Change of muscle twitch

Timeframe: Change between 30 min before the beginning of the simulated working activity and 30 min after the end of the simulated working activity of both the control and intervention day

Muscle fatigue: Change of dynamic force control accuracy

Timeframe: Change between 30 min before the beginning of the simulated working activity and 30 min after the end of the simulated working activity of both the control and intervention day