Table 2.

Visual analog scale (VAS).

Group	Before	After
MVFDH
Attention (1–10)	7.00 ± 0.27	8.13 ± 0.27
Fatigue (1–10)	6.88 ± 0.48	7.88 ± 0.41
Discomfort (1–10)	1.13 ± 0.13	1.00 ± 0.14
MVFNDH
Attention (1–10)	8.19 ± 0.37	8.59 ± 0.34
Fatigue (1–10)	7.56 ± 0.38	7.75 ± 0.39
Discomfort (1–10)	1.19 ± 0.0	1.06 ± 0.06

Before and after the MVF-task, attention, fatigue and discomfort were assessed with the VAS questionnaire. Attention scale, 1–10: 1, no attention; 10, highest level of attention. Fatigue scale, 1–10: 1, high level of fatigue; 10, no fatigue. Discomfort scale, 1–10: 1, no discomfort; 10, highest level of discomfort. All values are presented as mean ± standard error (SE) of the mean.