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Related Concept Videos

Somatic Spinal Reflexes01:22

Somatic Spinal Reflexes

Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
Muscle Stimulation Frequency01:22

Muscle Stimulation Frequency

The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
Motor Unit Stimulation01:20

Motor Unit Stimulation

When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
Assessment of the Abdomen III: Palpation01:23

Assessment of the Abdomen III: Palpation

Palpation is a crucial tactile examination method for assessing abdominal organs and detecting conditions like tenderness, distention, masses, or fluid. It involves both light and deep palpation techniques, each serving specific diagnostic purposes. Light palpation helps identify tenderness and other surface-level indicators, while deep palpation locates and assess abdominal masses and organ boundaries. A skilled professional can gather valuable insights through palpation, including evaluating...
Overview of Muscle Tissues01:25

Overview of Muscle Tissues

The human body has three types of muscle tissue: skeletal, smooth, and cardiac. Each class has unique properties that enable them to perform specific functions. However, all muscle tissues share certain properties, including elasticity, contractility, and excitability. 
Elasticity
Elasticity is the ability of muscles to stretch and return to their original shape. This property is partly due to elastic fibers — macromolecules that run through the muscles. These fibers are firm and resilient,...

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Updated: Jun 15, 2026

Fu's Subcutaneous Needling for Knee Osteoarthritis Pain
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Fu's Subcutaneous Needling for Knee Osteoarthritis Pain

Published on: March 24, 2023

[Tender points and trigger points--differences and similarities].

Elzbieta Kuncewicz1, Włodzimierz Samborski

  • 1Katedra Fizjoterapii, Reumatologii i Rehabilitacji, Uniwersytet Medyczny im. Karola Marcinkowskiego w Poznaniu. e.kuncewicz@interia.pl

Chirurgia Narzadow Ruchu I Ortopedia Polska
|March 6, 2010
PubMed
Summary
This summary is machine-generated.

Fibromyalgia and myofascial pain share diagnostic challenges due to similar tender and trigger points. Differentiating these non-inflammatory myalgias is crucial for accurate diagnosis and effective treatment.

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Area of Science:

  • Pain Medicine
  • Rheumatology
  • Neurology

Context:

  • Fibromyalgia (FB) and myofascial pain (MFP) are common non-inflammatory myalgias.
  • Diagnostic criteria often rely on identifying tender points (FB) and trigger points (MTrP) (MFP).
  • Lack of clear differentiation and nomenclature issues complicate diagnosis.

Purpose:

  • To highlight the diagnostic challenges in differentiating fibromyalgia and myofascial pain.
  • To emphasize the importance of accurately identifying tender and trigger points.
  • To address the impact of nomenclature ambiguity on clinical practice.

Summary:

  • Fibromyalgia and myofascial pain are distinct conditions but share similar diagnostic features, specifically tender points and trigger points.
  • The inability to reliably differentiate these points leads to misdiagnosis and treatment failure.
  • Inconsistent terminology and questioning of distinct entities further exacerbate diagnostic difficulties.

Impact:

  • Improved diagnostic accuracy for fibromyalgia and myofascial pain.
  • Enhanced therapeutic outcomes by enabling targeted treatment strategies.
  • Potential for clearer clinical guidelines and reduced healthcare costs associated with misdiagnosis.