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Related Concept Videos

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A decreasing function describes a relationship where the output consistently declines as the input increases. This means that for any two input values, if one is greater than the other, the corresponding output is smaller. Mathematically, a function f is decreasing on an interval I if for every x1 < x2​ in I, f (x1) > f (x2). This type of behavior is visually identified on a graph that slopes downward from left to right.The nature of a function can be analyzed by calculating...
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Related Experiment Video

Updated: Feb 6, 2026

Author Spotlight: Fu's Subcutaneous Needling for Knee Osteoarthritis Pain
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Osteoarthritis treatment: Decreasing pain, improving mobility.

Scott J Saccomano1

  • 1Scott J. Saccomano is an assistant professor at the University of North Carolina, Wilmington College of Health and Human Services School of Nursing, Wilmington, N.C.

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Summary

Osteoarthritis (OA) is a common joint disease causing pain and stiffness. Projections show millions will be disabled by OA globally by 2050, highlighting its significant public health impact.

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Area of Science:

  • Orthopedics
  • Rheumatology
  • Public Health

Background:

  • Osteoarthritis (OA) is the most prevalent articular disease globally.
  • OA leads to debilitating symptoms including bone-on-bone contact, joint stiffness, pain, and reduced mobility.
  • The condition poses a significant and growing public health challenge.

Purpose of the Study:

  • To highlight the increasing prevalence and impact of Osteoarthritis.
  • To project the future burden of Osteoarthritis on a global scale.

Main Methods:

  • Literature review and epidemiological data analysis.
  • Forecasting disease prevalence based on current trends.

Main Results:

  • Osteoarthritis is the most common articular disease.
  • By 2050, an estimated 130 million people worldwide will suffer from OA.
  • Over 40 million individuals are projected to experience severe disability due to OA by 2050.

Conclusions:

  • Osteoarthritis represents a major global health concern with a substantial projected increase in affected individuals and disability.
  • Urgent public health strategies and research are needed to address the escalating burden of OA.