Duration of Electro-Dry Needling Does Not Change the Pain Response After Repeated Nociceptive Thermal Stimuli in Asymptomatic Individuals: A Randomized Intervention Study.
Max Jordon, Matthew Grubb, Frank Tudini
PMID 37312978WHAT IT FOUND
Electro-dry needling reduced pain sensitivity in healthy adults, but the duration of treatment made no difference.
Whether needles were left in for 10 minutes or 30 minutes, the immediate reduction in pain response was the same.
Key findings
01There was a significant overall reduction in temporal summation (pain sensitivity) after electro-dry needling, regardless of how long the needles were retained.
02The interaction between time and treatment group was not significant, indicating that no group differed in the treatment effect based on the duration of electro-dry needling.
03The study concluded that 10 minutes of electro-dry needling is equally as effective as up to 30 minutes for reducing temporal summation in asymptomatic individuals.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study was conducted entirely on healthy, asymptomatic individuals, so the results may not apply to patients with chronic pain or central sensitization. There was no control group (such as a sham needle or no treatment), so it is unclear if the reduction in pain sensitivity was due to the needling itself or other factors. The study only measured immediate effects, so it does not indicate whether the pain reduction lasts or if longer treatment durations provide longer-lasting benefits. The distribution of men and women was uneven across the groups, though the authors analyzed sex as a factor and found no significant effect.
The easy way to misread this
Do not assume that a 10-minute treatment is just as effective as 30 minutes for patients with chronic pain or musculoskeletal conditions. This study only tested healthy adults and measured immediate responses, so it does not prove that shorter durations are sufficient for clinical populations or that the benefits last over time.