A preliminary study on how hypohydration affects pain perception

Bear, Tracey; Philipp, Michael C.; Hill, Stephen; Mündel, Toby

doi:10.1111/psyp.12610

Cited by 21 publications

(15 citation statements)

References 40 publications

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“…Experimental pain sensitivity was also higher when participants were hypohydrated, compared to when they were euhydrated. Similar observations were made in a later study, where a group of men dehydrated by restricting fluid intake for 24 h ( Bear et al, 2016 ). Mild hypohydration (1% body mass loss) was found to increase experimental pain sensitivity relative to the euhydration condition.…”

Section: Hydration Menstrual Phase and Painsupporting

confidence: 84%

Pain Across the Menstrual Cycle: Considerations of Hydration

et al. 2020

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Chronic pain – pain that persists for more than 3 months – is a global health problem and is associated with tremendous social and economic cost. Yet, current pain treatments are often ineffective, as pain is complex and influenced by numerous factors. Hypohydration was recently shown to increase ratings of pain in men, but studies in this area are limited ( n = 3). Moreover, whether hypohydration also affects pain in women has not been examined. In women, changes in the concentrations of reproductive hormones across menstrual phases may affect pain, as well as the regulation of body water. This indicates potential interactions between the menstrual phase and hypohydration on pain, but this hypothesis has yet to be tested. This review examined the literature concerning the effects of the menstrual phase and hypohydration on pain, to explore how these factors may interact to influence pain. Future research investigating the combined effects of hypohydration and menstrual phase on pain is warranted, as the findings could have important implications for the treatment of pain in women, interpretation of previous research and the design of future studies.

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Section: Hydration Menstrual Phase and Painsupporting

confidence: 84%

Pain Across the Menstrual Cycle: Considerations of Hydration

et al. 2020

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“…Two recent studies have analysed the effects of dehydration on pain in healthy subjects by the ‘cold pressor test’ (CPT). Hypohydration can change the cerebrovascular response to CPT ( 21 ) , resulting in increased pain sensitivity ( 22 ) . The mechanism underpinning the increase in pain perception due to hypohydration is unclear: the key factor causing the increase in pain centre activity is activated by the subjective feeling of thirst within a multimodal network designed to detect negative sensory inputs.…”

Section: Resultsmentioning

confidence: 99%

Food pyramid for subjects with chronic pain: foods and dietary constituents as anti-inflammatory and antioxidant agents

et al. 2018

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Emerging literature suggests that diet constituents may play a modulatory role in chronic pain (CP) through management of inflammation/oxidative stress, resulting in attenuation of pain. We performed a narrative review to evaluate the existing evidence regarding the optimum diet for the management of CP, and we built a food pyramid on this topic. The present review also describes the activities of various natural compounds contained in foods (i.e. phenolic compounds in extra-virgin olive oil (EVO)) listed on our pyramid, which have comparable effects to drug management therapy. This review included 172 eligible studies. The pyramid shows that carbohydrates with low glycaemic index should be consumed every day (three portions), together with fruits and vegetables (five portions), yogurt (125 ml), red wine (125 ml) and EVO; weekly: legumes and fish (four portions); white meat, eggs and fresh cheese (two portions); red or processed meats (once per week); sweets can be consumed occasionally. The food amounts are estimates based on nutritional and practical considerations. At the top of the pyramid there is a pennant: it means that CP subjects may need a specific customised supplementation (vitamin B12, vitamin D, n-3 fatty acids, fibre). The food pyramid proposal will serve to guide dietary intake with to the intent of alleviating pain in CP patients. Moreover, a targeted diet can also help to solve problems related to the drugs used to combat CP, i.e. constipation. However, this paper would be an early hypothetical proposal due to the limitations of the studies.

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“…Little is known about the relationship between the water composition and pain at the same site because only systemic studies have been performed. Some of the mechanisms and variables involved in pain perception are influenced by hypohydration (Bear et al 2016). Dehydration reduces the pain threshold and alters activation of the pain centers of the brain as seen by functional magnetic reso-nance imaging, while rehydration with an oral rehydration solution decreases brain activity related to painful stimuli (Ogino et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Correlation of Pressure Pain Threshold with Segmental Water Content among Female Farmers

Kang

Shin

Kang

2019

Tohoku J. Exp. Med.

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Body composition (BC) is related to the pathogenesis of musculoskeletal disease, especially research focused on the role of fat and muscle mass. This study aimed to identify the associations between the pressure pain threshold (PPT) and pain-related factors including BC. A total of 64 healthy farmers (21 males and 43 females) were recruited, and baseline data were analyzed cross-sectionally. Demographic characteristics (sex, age, marital status, education duration, current status of smoking and alcohol drinking, height, body weight, and underlying diseases) and a psychologic characteristic (a Korean version of the Beck Depression Inventory [BDI]) were assessed. Additionally, body composition analysis using bioelectrical impedance analysis (BIA) was performed. PPT was measured by applying an increasing amount of blunt pressure using a 1 cm 2 hard rubber end at the thenar region of the right hand with a constant increase in pressure of 50 kPa/s. The PPT was measured on a single day, and the average value was used for analysis. The male group (67.00 ± 9.12 years) was older than the female group (62.21 ± 6.77 years; p = 0.021). In the body composition analysis, only segmental water of the right arm was positively related to PPT (β = 0.331, p = 0.030) in the multivariate linear regression analysis. In conclusion, hydration status was related to PPT with clinical implication that sufficient hydration could reduce the pain susceptibility. Thus, when assessing the painful condition, checking the hydration status could be helpful before the intensive treatment.

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A preliminary study on how hypohydration affects pain perception

Cited by 21 publications

References 40 publications

Pain Across the Menstrual Cycle: Considerations of Hydration

Pain Across the Menstrual Cycle: Considerations of Hydration

Food pyramid for subjects with chronic pain: foods and dietary constituents as anti-inflammatory and antioxidant agents

Correlation of Pressure Pain Threshold with Segmental Water Content among Female Farmers

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