Influence of Oral Messages on the Activity of Wrist and Finger Flexor Muscles

"Subjects who will be told that the applied plastering method significantly increases muscle strength (positive message - placebo)."

"Subjects who will be told that the applied plastering method has no effect on muscle strength (negative message - nocebo)."

"Subjects who will be told that the applied plastering method is currently under investigation and the investigators do not know its effects (neutral message)."