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Hypoalgesic Response

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The role of exercise in pain perception has been widely researched over a number of years. Koltyn (2000) found that research had been taking place for more than twenty years. Previous studies have identified the significance of exercise in the treatment and rehabilitation for many patients with chronic pain (Naugle, Fillingham, & Riley, 2012). Hypoalgesia was found to occur following resistance and isometric exercise (Koltyn, 2000). However, it was suggested that further examination was required to develop an understanding of hypoalgesic responses following different modes of exercise (Koltyn, 2000). Further studies have provided evidence that healthy individuals demonstrated that sensitivity to painful stimuli is reduced with acute exercise …show more content…

There was also interest in the mechanisms that are activated during EIH, specifically at the opioid and endocannabinoid mechanisms (Koltyn, Brellenthin, Cook, Sehgal, & Hillard, 2014). The conclusions of this study revealed that following short-duration isometric exercise, EIH did occur. This response was not altered with the administration of an opioid antagonist (Koltyn et al., 2014). However, there was an elevation in endocannabinoid levels following exercise. This indicated that there may be facilitation by a nonopioid mechanism, possibly by cannabinoid receptor activation in EHI following isometric exercise in short-duration (Koltyn et al., 2014). Further to this EIH effect was produced when aerobic exercises were performed at moderate to high intensities for longer periods (Vaegter et al. 2014). Whereas, with isometric exercise at both the low and high intensity levels revealed that EIH was produced (Vaegter et al. 2014). There was also evidence that the period of exercise appeared to be less important with isometric exercise. The isometric exercise, such as muscle contraction without joint movement were used (Vaegter et al. …show more content…

These disorders include fibromyalgia, chronic neck pain, osteoarthritis, rheumatoid arthritis, and chronic low back pain. However, there is still indecision as to whether exercise has a positive effect on the processes involved in central pain modulation (CPM) (Nijs, Kosek, Van Oosterwijck, & Meeus, 2012). There is an assumption that exercise-induced endogenous analgesia is the result of endogenous opioids being released and growth factors, along with the activation of (supra) spinal nociceptive inhibitory mechanisms coordinated by the brain (Nijs et al., 2012). An investigation into (CPM) as a potential mechanism of EIH revealed that this was not the case (Ellingson, Koltyn, Kim, & Cook, 2014). The testing for intensity and unpleasant rating to noxious heat stimuli, included painful exercise, non-painful exercise, and quiet rest. According to the findings pain sensitivity, significantly decreased during both types of exercise session but there was no significant change during quiet rest (Ellingson et al.,

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