The placebo effect in physiotherapy and pain management, with Lars Avemarie

The lecture examines how the placebo effect is understood and misused in physiotherapy and pain management. It defines placebo and nocebo effects, explains that placebo responses are not one single mechanism, and shows how expectations, communication, treatment rituals, appearance, prior experiences, and the wider psychosocial context can influence outcomes. A key point is that placebo effects are uncertain, variable, and usually small, with stronger effects often linked to more invasive interventions such as sham acupuncture or sham surgery. It also contrasts subjective improvement with objective improvement, using research to show that patients may feel better without measurable clinical change. The nocebo effect receives strong attention as the harmful counterpart of placebo, especially how negative language and suggestions from clinicians can worsen pain and persist over time. Ethical concerns are raised about using treatments that rely only on nonspecific effects, particularly implausible or unproven methods. The overall message is that clinicians should rely on science-based treatments while still maximizing beneficial contextual factors through high-quality care, communication, empathy, and patient education.