Validation and Test-retest Study of the Star-shaped Manual Dexterity Test.
- Conditions
- Manual Dexterity
- Interventions
- Other: StressOther: Stretched arm testDevice: Star shaped manual dexterity test
- Registration Number
- NCT02146443
- Lead Sponsor
- Herlev Hospital
- Brief Summary
The purpose of this study is to measure test-retest reliability and validate the star shaped test of manual dexterity. The purpose of this is to see if there is any significant learning effect, and if the test can discriminate between individuals who are at their normal skill level, and when they are stressed and/or fatigued. The test is designed to test hand to eye coordination and precision control. This is done by following a star shaped track with a pair of a surgical scissors. this is done 10 times, 5 times clockwise and 5 times counter clockwise. Each time the scissors come into contact with the border of the track, an error is counted. Overall completion time is recorded. As a randomized crossover study, we will have 20 test subjects complete the test 4 times. Each test will be conducted with a pause of two breaks between the tests. Before each test, the test subjects are randomized to: no intervention, physical fatigue prior to testing, distractions during the test or both physical fatigue prior to testing and distractions during the test. All participants will complete a test with all four interventions. Furthermore, a test-retest trial will be conducted on 4 test-subjects. Each subject will complete the test two times with no interventions, with two days apart.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 31
- Age between 20 and 55 years
- Diagnosed heart disease
- Diagnosed endocrinological disease
- Diagnosed Neurological or autoimmune disease
- Diagnosed Sleep disorder
- Diagnosed orthopedic diseases or former orthopedic surgery (e.g. arthrosis, rotator cuff syndrome)
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Stress Stress During completion of the star shaped manual dexterity test, the test subject is asked to identify cards from a regular deck of playing card by naming the suit and rank of the card. They will be asked to identify one random card during each of the 10 rounds in the completion of the test. Completion time and number of errors are recorded. Fatigue and Stress Stretched arm test The test subject will be fatigued prior to the test (as detailed in the fatigue arm), and asked to identify cards during completion of the star shaped manual dexterity test (as detailed in the stress arm). Completion time and number of errors are recorded. Fatigue and Stress Stress The test subject will be fatigued prior to the test (as detailed in the fatigue arm), and asked to identify cards during completion of the star shaped manual dexterity test (as detailed in the stress arm). Completion time and number of errors are recorded. Stress Star shaped manual dexterity test During completion of the star shaped manual dexterity test, the test subject is asked to identify cards from a regular deck of playing card by naming the suit and rank of the card. They will be asked to identify one random card during each of the 10 rounds in the completion of the test. Completion time and number of errors are recorded. Fatigue and Stress Star shaped manual dexterity test The test subject will be fatigued prior to the test (as detailed in the fatigue arm), and asked to identify cards during completion of the star shaped manual dexterity test (as detailed in the stress arm). Completion time and number of errors are recorded. Baseline Star shaped manual dexterity test Completion of the star shaped manual dexterity test, five rounds clockwise and five rounds counter clockwise without any intervention. Time and number of errors are recorded. Measurement of static arm strength with the stretched arm test. test subject is asked to hold a 2.5 kg weight in stretched arm for as long as possible. Maximum endurance time is recorded. Fatigue Stretched arm test Prior to completion of the star shaped manual dexterity test, the test subject is asked to stand up still and hold a 2.5-kg weight with the dominant arm fully extended as long as possible without moving. Maximum endurance time is recorded. After this, the test subject completes the the star shaped manual dexterity test and time and number of errors are recorded. Baseline Stretched arm test Completion of the star shaped manual dexterity test, five rounds clockwise and five rounds counter clockwise without any intervention. Time and number of errors are recorded. Measurement of static arm strength with the stretched arm test. test subject is asked to hold a 2.5 kg weight in stretched arm for as long as possible. Maximum endurance time is recorded. Fatigue Star shaped manual dexterity test Prior to completion of the star shaped manual dexterity test, the test subject is asked to stand up still and hold a 2.5-kg weight with the dominant arm fully extended as long as possible without moving. Maximum endurance time is recorded. After this, the test subject completes the the star shaped manual dexterity test and time and number of errors are recorded.
- Primary Outcome Measures
Name Time Method Completion time of the star shaped manual dexterity test. up to day 10 The time in seconds it takes to complete 10 rounds of the star shaped manual dexterity test. First 5 rounds clockwise and then 5 rounds counter clockwise. The test will be performed on day 1, 4, 7 and 10 of the study.
- Secondary Outcome Measures
Name Time Method Number of errors during the completion of the star shaped manual dexterity test. Test completion period at day 1, 4, 7 and 10 An error is counted each time the test subject touches the borders of the star shaped track of the manual dexterity test with the surgical scissor.
Trial Locations
- Locations (1)
Herlev Hospital
🇩🇰Herlev, Denmark