Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Cognitive processes as assessed using Stroop test |
Stroop test is a computer-based Stroop word and color test, including congruent trials and incongruent trials to assess inhibition. Reaction time and accuracy of the Stroop test will be collected before and after the intervention |
change from baseline after 4 hour intervention on day1, day8, day16 |
|
Primary |
Cognitive processes as assessed using D2 attention test |
D2 attention test is a paper and pencil test to assess attention. Concentration performance will be collected before and after the intervention. |
change from baseline after 4 hour intervention on day1, day8, day16 |
|
Primary |
Cognitive processes as assessed using N back test |
N back test is a computer-based test, including target images and non-target images. this test is for updating and working memory. The correct reaction number of N back test will be collected before and after the intervention. |
change from baseline after 4 hour intervention on day1, day8, day16 |
|
Primary |
Cognitive processes as assessed using Trail making test |
Trail making test is a computer-based test to assess task-switching. reaction time and accuracy of the trail making test will be collected before and after the intervention. |
change from baseline after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by tension score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by anger score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline all mood outcomes after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by depression score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline all mood outcomes after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by vigor score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline all mood outcomes after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by esteem-related effect score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline all mood outcomes after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by confusion score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline all mood outcomes after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by fatigue score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline all mood outcomes after 4 hour intervention on day1, day8, day16 |
|
Secondary |
mood status assessed by total mood level score |
mood questionnaire(an abbreviated version of Profile of Mood States (POMS)) will be used before and after the intervention, such as tension, anger, depression, vigor, esteem-related effect, confusion, fatigue, total mood level data included. The scale is 0 to 4. |
change from baseline all mood outcomes after 4 hour intervention on day1, day8, day16 |
|
Secondary |
muscle activity |
Muscle activity is measured by the electromyograph (EMG)machine. RMS values will be collected and calculated as muscle activation during each sittings condition |
recording 5 minutes' muscle activity for each sitting posture, average RMS will be collected.it will be performed on another experiment day. |
|
Secondary |
discomfort level |
after each sitting condition, self discomfort level will be asked.0 means no discomfort,10 means the worst discomfort |
report discomfort level immediately after each sitting condition(each sitting posture lasts 5 minutes).it will be performed on another experiment day. |
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