Lihaskihis

Lihaskihis is a Finnish term used to describe a sensation of muscle stiffness and temporary reduction in muscle flexibility that commonly follows physical activity. In many contexts the term is used interchangeably with delayed onset muscle soreness (DOMS), though lihaskihis is more a lay expression describing the experience rather than a distinct medical diagnosis. It appears in Finnish health information aimed at athletes and the general public.

Causes and typical course: Lihaskihis often occurs after unfamiliar or intense exercise, especially activities that involve eccentric muscle loading. Microscopic muscle fiber damage and local inflammation contribute to soreness and stiffness. The onset is usually 12 to 24 hours after activity, peaking around 24 to 72 hours, and gradually subsiding within a few days. Factors such as inadequate warm-up, dehydration, and insufficient recovery can worsen symptoms.

Symptoms and diagnosis: Symptoms include muscle stiffness, aching, tenderness to touch, and a temporary reduction in range of motion. There is typically no swelling or significant weakness beyond normal fatigue. Diagnosis is clinical, based on history and physical examination. It is important to distinguish lihaskihis from acute muscle strain, cramps, or inflammatory conditions; persistent or severe symptoms warrant medical evaluation.

Management and prevention: Treatment often involves gentle movement and light stretching, with heat applications or massage as needed. Non-prescription analgesics may be used for discomfort. Adequate hydration, balanced nutrition, and sufficient sleep support recovery. Prevention focuses on gradual training progression, proper warm-up and cool-down, and allowing adequate recovery between demanding sessions.

Prognosis and context: Most cases resolve within a few days. In Finnish-speaking health materials, lihaskihis is a common descriptive term rather than a formal diagnosis, reflecting a widespread experience of post-exercise stiffness. See also DOMS and muscle strain.