Multi Dimensional System for Evaluating a Preventive Program for Upper Extremity Disorders Among Computer Operators
Computer settings points to a number of risk factors which may induce the development of Work related MSD (WRMSD). In light of the expanded use of computers and the increased occurrence of Upper Extremity (UE) WRMSD among computer operators various intervention programs have been developed and tested. Nevertheless, many of these programs do not meet the criteria of quality and level of evidence.
The main objective of this study is to use simultaneously a three dimensional (3D) kinematic analysis system, surface electromyography (SEMG) and fingertip force measurement system (Flexiforce) while typing, to test the efficacy of primary and secondary preventive intervention programs aimed at reducing MSD among computer operators.
Work hypothesis: Significant score differences will be found on the evaluation parameters between the research group which underwent ergonomic training with biofeedback, the group without feedback, and the control group.The evaluated parameters will correlate with the appearance of MSD symptoms and pain and will affect level of function.
The study will include 66 participants, programmers and computer engineers. The participants will be assigned randomly to one of three groups: 1) participants will receive ergonomic training with biofeedback; 2) participants will receive ergonomic training without biofeedback; and 3) control group, without intervention. Each group will consist of 22 participants.
Treatment efficacy will be tested both at work and in the motion lab. In the lab, 3D kinematic measurements and fingertip forces relevant to typing while entering a standard text will be measured. At the work site, anthropometric and measurements, work station measurements, posture observation and questionnaires about, psychosocial status, function and pain level will be filled The preventive program will be performed at the workstation after the preliminary data collection phase. The program will consist of one group meeting at the workplace for all employees participating in the study, and individual instruction at the workstation, including 3-6 meetings for the two research groups. Data will be collected before and after the intervention program.
調査の概要
状態
研究の種類
入学 (予想される)
段階
- 適用できない
連絡先と場所
研究場所
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Ramat Gan、イスラエル
- 募集
- Motion Laboratory, Sheba medical center
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主任研究者：
- Uri givon, MD
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コンタクト：
- Yafi Levanon, MSc
- 電話番号：++972-52- 6666598
- メール：yafil@post.tau.ac.il
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主任研究者：
- Ron Frimer, MD
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- subjects working more than four hours per day in front of a computer and are right-hand dominant.
- Healthy or suffering from diagnoses of UE-MSD. (e.g. Rotator cuff syndrome , Lateral epicondylitis, Cubital tunnel syndrome, Carpal tunnel syndrome, Flexor-extensor peri-tendinitis or teno-synovitis of the forearm-wrist region, De Quervain's disease and Nonspecific MSD
Exclusion Criteria:
- Participants suffering from orthopedic injury or neurological deficit (with the exception of the diagnosis mentioned above).
- Medical conditions that cause swelling of the joints or hand numbness (pregnancy, diabetes, heart condition, arthritis).
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：防止
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：Ergonomic consulting
Ergonomic consulting without biofeedback
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Standard ergonomic intervention , how to sit and work with computers
他の名前：
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実験的：Ergonomic consulting with biofeedback
Ergonomic intervention with biofeedback
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Ergonomic intervention, how to sit and work, an d muscle re education with a SurfaceElrctromyograph Biofeedback (SEMG biofeedback)
他の名前：
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介入なし：general instructions
general instructions with no intervention
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general instructions no intervention
他の名前：
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Musculoskeletal disorders measurement (MSD score)
時間枠：Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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The MSD score of the whole body will be collected out of a self administrated questionnaire in the first meeting before intervention and in the last meeting.
the score indicates the number of painful body regions that were harmful in the last week before answering the Questionnaire.
Negative differences between post and pre intervention will indicate improvement in pain.
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Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Rapid Upper Limb Assessment (RULA)score
時間枠：Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one
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The RULA is an observation that assess the posture at work.
The assessment will be held in the work place in the first meeting before intervention and in the last meeting.
The score ranged between 0-7, higher score indicates higher risk for MSD.
Negative differences between post and pre intervention will indicate improvement in posture at work.
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Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one
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Kinematic Data [range of motion ( R.O.M) and angular velocity]measured by 3D motion analysis system.
時間枠：Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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The Kinematics of the upper extremity (fingers, wrist and elbow) will be measured in the second and in the last meeting at the motion laboratory.
The second meeting will be not more than 2 weeks after the first meeting.R.O.M will be measured in degrees and the angular velocity will be presented in degrees per seconds.
.Negative differences between post and pre intervention indicates improvement in R.O.M and angular velocity.
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Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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Muscle activity
時間枠：Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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The muscle activity amplitude of the wrist and finger extensors and the upper trapezius will be measured and collected in the second meeting at the motion laboratory simultaneously with the kinematic data.The muscle amplitude will be presented as percentile of the Maximal Voluntary Contraction (MVC) of the same muscles.
Higher percentage of muscle activity will indicate higher muscle load.
Negative differences between post and pre intervention indicates improvement in muscle activity.
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Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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Psychosocial job characteristics assessment (DCSQ)
時間枠：Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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The D.C.S.Q will be measured by a self administrated questionnaire in the first meeting before intervention and in the last meeting.
The job demands score range between 5-25 and the decision latitude score range between 8-40.
Low level of job demands and high decision latitude indicates low level of stress at work.
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Minimum 10 weeks and maximum 15 weeks between the first measurement and the last one.
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協力者と研究者
捜査官
- スタディディレクター：Yafi Levanon, MsC、Sheba Medical Center , Tel aviv University
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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