Intensity and duration threshold for aerobic exercise-induced analgesia to pressure pain

Effect of Treadmill Exercise on Serotonin Immunoreactivity in Medullary Raphe Nuclei and Spinal Cord Following Sciatic Nerve Transection in Rats

“…The analgesia intensity and duration are variable. It seems to be enhanced after high intensity exercise and with persistent noxious stimuli after exercise [5,6].…”

“…Although there are many studies considering serotonin in nociceptive [22][23][24][25] and motor [26][27][28] modulations, and exercise-induced analgesia [5,6,8,10,29,30], it is important to demonstrate the possible changes to the spinal and supraspinal serotonergic nerve activity in animals submitted to peripheral nervous lesion combined with aerobic exercise training. Thus, this study investigated the effects of aerobic treadmill exercise training on serotonin immunoreactivity patterns in magnus and dorsal raphe nuclei and lumbosacral spinal cord of rats submitted to sciatic nerve transection.…”

Influence of blood pressure elevations by isometric exercise on pain perception in women

“…This exercise-induced hypoalgesia (EIH) has been characterized by elevations in pain thresholds (point at which noxious stimulation is first perceived as painful), elevations in pain tolerances (amount of noxious stimulation individuals are willing to tolerate), as well as reductions in pain ratings during and following exercise. Most of the studies in this area have involved aerobic exercise, and EIH has been found to occur most consistently during and following higher intensity aerobic exercise (Hoffman et al, 2004;Koltyn, 2002). There are, however, some studies indicating that EIH can occur during and following short duration (e.g., 1-5 min) and lower intensity (e.g., 15-50% max) isometric exercise (Ring et al, 2008;Staud et al, 2005;Kosek and Lundberg, 2003;Koltyn et al, 2001;Persson et al, 2000;Kosek et al, 1996;Kosek and Ekholm, 1995).…”

Effects of Ice Massage on Pressure Pain Thresholds and Electromyography Activity Postexercise: A Randomized Controlled Crossover Study

“…31 Hoffman et al have determined that an intensity greater than 50% VO 2max and a duration longer than 10 minutes are the minimum thresholds required for eliciting exercise-induced analgesia. 32 The fact that we used a low-intensity exercise may be the reason for the identified reduction in PPT levels found over the VM and RF in the current study. In addition, to the best of our knowledge, the hypoalgesic effects of isokinetic exercise have not been previously assessed.…”