Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Other |
Body height [cm] |
The Nordic Questionnaire will be used to determine subjects body height Physical activity [hours of sports per week work experience [years] musculoskeletal complaints in the last 12 month, last week, and point prevalence [n] |
5 Minutes |
|
Other |
Body weight [kg] |
The Nordic Questionnaire will be used to determine subjects body weight |
5 Minutes |
|
Other |
Physical activity [hours of sports per week] |
The Nordic Questionnaire will be used to determine subjects weekly physical activity |
5 Minutes |
|
Other |
work experience [years] |
The Nordic Questionnaire will be used to determine subjects work experience |
5 Minutes |
|
Other |
Musculoskeletal complaints in the last 12 month, last week, and point prevalence [n] |
The Nordic Questionnaire will be used to determine subjects musculoskeletal complaints in the last 12 month, last week, and point prevalence |
5 Minutes |
|
Primary |
Median muscular load of the bilateral trapezius pars descendens muscle surface electromyography. |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the 50th percentile the normalized RMS will be calculated [percent MVE] |
75 Minutes |
|
Primary |
Static muscular load of the bilateral trapezius pars descendens muscle |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the 10th percentile of the normalized RMS [percent MVE] will be calculated. |
75 Minutes |
|
Primary |
sustained muscular activity of the bilateral trapezius pars descendens muscle |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the number of episodes (= 8min) of the normalized RMS above 0.5percent MVE [n] will be calculated. |
75 Minutes |
|
Primary |
Muscular rest time of the bilateral trapezius pars descendens muscle |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the frequency [n] and relative duration [percent] of the normalized RMS lower than 0.5percent MVE will be calculated. |
75 Minutes |
|
Secondary |
Median muscular load of the bilateral extensor digitorum and flexor carpi radials muscles |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the 50th percentile the normalized RMS will be calculated [percent MVE] |
75 Minutes |
|
Secondary |
Static muscular load of the bilateral extensor digitorum and flexor carpi radials muscles |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the 10th percentile of the normalized RMS [percentMVE] will be calculated. |
75 Minutes |
|
Secondary |
sustained muscular activity of the bilateral extensor digitorum and flexor carpi radials muscles |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the number of episodes (= 8min) of the normalized RMS above 0.5percent MVE [n] will be calculated. |
75 Minutes |
|
Secondary |
Muscular rest time of the bilateral extensor digitorum and flexor carpi radials muscles |
Muscle activity will be recorded using bipolar surface electromyography and is defined as the root-mean-square (RMS) of electrical muscle activity. Muscle activity will be normalized to an isometric voluntary maximum electrical activation (MVE) and the frequency [n] and relative duration [percent] of the normalized RMS lower than 0.5percent MVE will be calculated. |
75 Minutes |
|
Secondary |
Shoulder abduction angle [degree] |
Shoulder abduction angle will be assessed by the difference of two gravimetric position sensors placed on the upper back and the lateral side of the upper arm. |
75 Minutes |
|
Secondary |
trunk flexion angle [degree] |
Trunk flexion angle will be assessed by the difference of two gravimetric position sensors placed on the upper and lower back. |
75 Minutes |
|
Secondary |
head flexion angle [degreee] |
Head flexion angle will be assessed by the difference of two gravimetric position sensors placed on the upper back and the forehead. |
75 Minutes |
|
Secondary |
Frequency of perceived physical discomfort [n] |
Subjects will be asked in 20-min intervals throughout the surgery whether they feel any discomfort [yes or no] |
75 Minutes |
|
Secondary |
Intensity of perceived physical discomfort [0-10; 0 = nothing at all, 10 = extremely high |
Subjects will be asked in 20 -min intervals throughout the surgery about their level of perceived physical discomfort using a numeric rating scale [0 to 10]. |
75 Minutes |
|
Secondary |
Subjective mental demand [0 - 21; 0 = very low, 21 = very high] |
Subjective mental demands will be assessed by the mental demand subscale of the NASA TLX questionnaire |
75 Minutes |
|
Secondary |
heart rate [beats per minute] |
Heart rate will be recorded by a one channel electrocardiogram |
75 Minutes |
|
Secondary |
Heart rate variability as the Standard Deviation of NN intervals [ms] |
Heart rate will be recorded by a one channel electrocardiogram and the standard Deviation of the NN interval will be calculated |
75 Minutes |
|
Secondary |
Heart rate variability as the Root Mean Squers of Successive Differences [ms] |
Heart rate will be recorded by a one channel electrocardiogram and the root mean square of the successive differences will be calculated |
75 Minutes |
|