Geriatric Considerations Flashcards
Periarticular connective tissue (PCT)
Ligaments joint capsule, aponeurosis, tendon, mm, skin: displays changes that result in increased stiffness of PCT; mobility is servilely compromised in the tissue
Age related changes: with PCT
- increased cross links in collagen
- decreased elastin
- predominance of collagen
- decreased water content in joints and tissues
- decreased hyaluronic acid
- increased fibrin protein
Decreased elastin:
- Designed for mobility, reduces with age
- Returns to shape after deformation, reduces with age
- Time sensitive more so than force sensitive with respect to changes
Predominance of collagen:
- Designed for immobility, increases with age
- Poor general mobility
- Excellent tolerance to tensile forces
- No tolerance to compression forces
Decreased ___ content in joint and ____
water
tissue
Decreased _______ acid
hyaluronic
naturally occurs in humans for eye and joint lubrication/moisturizer
Increased ______ protein involved in the clotting of ____: forms a _____
fibrin
blood
mesh
In relation to stretch:
- aging tissue has lost its ability to respond over time to prolonged stretch due to loss of elastin
- aging tissue also does not respond as well to large magnitudes of force due to alterations in plasticity (ability for tissue to change under load)
- Oscillations are the most effective way to increase ROM in the elderly (utilizing the physiological evidence above) evidence is not conclusive
Hyaline cartilage:
-Dehydrates and fibrillates (fragments and splits) which results in decreased ability to tolerate compression and tensile forces
Some loss of bone mass is ______ with aging; it may be so _____ as to be considered osteoporosis (especially in ______), which results in a decreased ability of bone to support loads & resist ______ forces.
associated
severe
women
external
