In the context of pain with activity, what does lag time describe?

In the context of pain with activity, what does lag time describe?

• A. Delay between activity and onset of pain
• B. Immediate onset of pain
• C. Pain at rest only
• D. Pain with no relation to activity

Answer: (D)

Lag time is the delay between starting activity and when pain first appears. This means the pain doesn’t show up right away but develops after some use, or after stopping the activity, as tissues begin to fatigue or accumulate byproducts. It’s the opposite of immediate pain at the onset of activity, and it’s not pain that occurs only at rest or pain that seems unrelated to activity. In practice, you’d observe how long after beginning a movement the patient reports pain; a clear delay points to lag time.

Lag time is the delay between starting activity and when pain first appears. This means the pain doesn’t show up right away but develops after some use, or after stopping the activity, as tissues begin to fatigue or accumulate byproducts. It’s the opposite of immediate pain at the onset of activity, and it’s not pain that occurs only at rest or pain that seems unrelated to activity. In practice, you’d observe how long after beginning a movement the patient reports pain; a clear delay points to lag time.