Which diagnosis is characterized by pain that increases with running activity but is absent at rest?

• A. Achilles tendonitis
• B. Anterolateral impingement syndrome
• C. Plantar fasciitis
• D. Medial tibial stress syndrome

Answer: (B)

Anterolateral impingement syndrome is characterized by pain that typically increases with activities such as running, particularly when the ankle is dorsiflexed or when there is compression of the tissues around the ankle joint. This condition often arises as a result of repetitive stress and may not present with pain at rest. The mechanics of running can exacerbate the impingement of soft tissues or bony structures, leading to increased pain during the activity while remaining asymptomatic at rest.

In contrast, conditions like Achilles tendonitis and plantar fasciitis usually present with pain both during activity and at rest, especially first thing in the morning or after prolonged periods of inactivity. Medial tibial stress syndrome, often described as shin splints, also presents with activity-related pain that can persist during rest but may vary in severity.

Understanding the specific characteristics of pain associated with various injuries is crucial in making accurate clinical diagnoses and subsequent treatment plans.