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Pain01:20

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Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
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Primary motives such as sleep, sex, and pain avoidance are crucial drivers of behavior in humans and animals. These motives ensure survival, reproductive success, and overall well-being by prompting actions that meet essential bodily needs.
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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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The highest and lowest values of a function, relative to a reference axis, are known as extreme values. These include absolute maximum and absolute minimum values, which represent the highest and lowest points the function reaches across its entire domain. Within a restricted portion of the function, the highest and lowest values are referred to as local maximum and local minimum values, respectively.Periodic functions, such as sine and cosine, show extreme values at infinitely many points due...
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Updated: Feb 5, 2026

Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram
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Does lower extremity pain precede spinal pain? A longitudinal study.

Signe Fuglkjær1, Werner Vach2,3, Jan Hartvigsen4,5

  • 1Department of Sports Science and Clinical Biomechanics, Faculty of Health Sciences, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark. sfuglkjaer@health.sdu.dk.

European Journal of Pediatrics
|September 21, 2018
PubMed
Summary
This summary is machine-generated.

Children experiencing lower extremity pain are more likely to develop spinal pain. This risk increases with more frequent or longer-lasting leg pain episodes in pediatric populations.

Keywords:
ChildhoodEpidemiologyKinetic chainLow back painPredictorRisk factor

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Area of Science:

  • Pediatric musculoskeletal health
  • Epidemiology of childhood pain

Background:

  • Spinal pain and lower extremity pain are prevalent in childhood and adolescence.
  • Understanding the relationship between different pain sites is crucial for early intervention.

Purpose of the Study:

  • To determine if pediatric lower extremity pain predicts incident spinal pain.
  • To investigate the influence of pain frequency and duration on this association.

Main Methods:

  • Weekly text message monitoring of pain in children aged 9-15 years.
  • Analysis using mixed-effects logistic regression and Cox regression models.

Main Results:

  • Children with lower extremity pain showed a significantly increased likelihood of developing spinal pain.
  • The association strengthened with longer observation periods (12 and 20 weeks).
  • Increased frequency or duration of lower extremity pain heightened the risk of spinal pain.

Conclusions:

  • Pediatric lower extremity pain is a significant predictor of subsequent spinal pain.
  • Frequent or prolonged lower extremity pain in children warrants attention for potential spinal pain development.