Which term describes increased sensitivity to non-painful palpation pressure?

The term that describes increased sensitivity to non-painful palpation pressure is allodynia. Allodynia refers to a condition where a stimulus that normally does not provoke pain, such as light touch or gentle pressure, is perceived as painful. This phenomenon is often seen in various pain syndromes and can arise due to changes in the nervous system that alter how sensory information is processed.

In contrast, hypertonicity refers to increased muscle tone or tightness, leading to stiffness and resistance in the muscle when it is stretched. Hypotonicity indicates decreased muscle tone, which can result in flaccid muscles that are weaker than normal. Ischemia relates to reduced blood flow to a tissue, which can cause pain and dysfunction due to oxygen deprivation, but does not specifically describe a hypersensitivity to touch. Hence, allodynia is the correct term for the situation presented in the question.