5 Questions
What is the result of a stress applied for an extended period of time on connective tissue?
Permanent deformation
What factor influences the amount of deformation in connective tissue?
Both the amount of stress and the rate of stress application
What is the purpose of heating the connective tissue before stretching?
To increase the creep
What is the result of low-magnitude loads applied for long periods on connective tissue?
Gradual rearrangement of collagen fiber bonds
What is the effect of increasing the temperature of the connective tissue?
Increased creep
Study Notes
Creep in Connective Tissue
- Permanent deformation of connective tissue occurs when a stress is applied for an extended period, resulting in elongation.
- Creep is related to the viscosity of the tissue and is therefore time-dependent.
- The amount of deformation depends on the amount of stress and the rate at which the stress is applied.
Factors Affecting Creep
- Low-magnitude loads, within the elastic range, and applied for long periods increase deformation of connective tissue.
- This leads to gradual rearrangement of collagen fiber bonds (remodeling) and redistribution of water to surrounding tissues.
Temperature and Creep
- Increasing the temperature of the affected part increases creep and therefore the distensibility of the tissue.
- Physical therapists use heating methods, such as moist heat (towels) or infra-red radiation, before stretching to take advantage of this phenomenon.
Learn about the effects of stress on connective tissue, including creep and deformation. Understand how stress duration, magnitude, and rate affect tissue response.
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