How did dry needling affect lumbar multifidus muscle contraction in participants with low back pain?

The choice indicating that dry needling showed immediate improvement without lasting changes is supported by research that highlights the immediate effects of dry needling on muscle function. This technique, which involves inserting thin needles into muscle knots, aims to decrease pain and improve muscle activation. Studies have observed that after dry needling, there is often a quick enhancement in the contraction of the lumbar multifidus muscle in individuals with low back pain, suggesting that the acute effects can lead to improved muscle function.

However, while participants may experience these immediate benefits, lasting changes in muscle contraction are not always evident. The initial response, including reduction in pain and enhanced muscle activation, may fade over time without additional treatment or interventions, which is why this option accurately encapsulates the outcomes observed in various studies on the efficacy of dry needling.