The following article addresses muscle injury and the repair process following dry needling. A common question that arises during instruction of trigger point dry needling is in
regards to frequency of dry needling your patients. This article concludes that inflammation following dry needling may be present 3 to 5 days after treatment.
A limitation of this article is that the results of this study cannot be extrapolated to pathological tissue of a myofascial trigger point (MTrP). This brings up an important point regarding the importance of accurately identifying MTrPs to avoid unnecessary needling to healing tissue. It is my opinion that the best dry needlers are those therapists that have a background in manual therapy and have enhanced palpation skills enabling them to identify MTrPs accurately, hence resulting in better outcomes for their patients. I often dry needle patients twice within a week, I seldom dry needle the same muscle within the same week. If done properly, one should not have to. I also prefer to avoid dry needling 3 days before a sporting event. Circumstances sometimes call for a therapist to modify this stance, but in that case it is critical that the therapist identify the pathological tissue accurately and effectively needle the trigger point to avoid collateral injury to healthy muscle.
Review the complete article here
Neuromuscular Damage and Repair after TDN in Mice