MSK W1 Flashcards
(161 cards)
What are the three stages of healing?
- Inflammation 2. Repair 3. Remodelling
What is the duration of the inflammation stage?
Immediately following injury to 3-5 days
What does the acronym PRICE stand for?
Protection, Rest, Ice, Compression, Elevation
What occurs during the repair stage?
Phagocytosis of necrotic fibers, regeneration of myofibers, formation of scar tissue, capillary ingrowth
How long does the remodelling stage last?
14 to 21+ days, complete healing may take up to 2 years
What is the key factor in an exercise program designed to increase muscle strength?
Intensity
What are some types of resistance exercises?
- Manually applied * Isometric * Isotonic * Elastic resistance * Isokinetic * Body weight * Circuit training
What are the benefits of regular patient exercise?
- Decrease in serum lipid levels * Improvement in maximum oxygen consumption * Increase in HDL levels * Decrease in high blood pressure * Improved or relieved angina * Improved aerobic capacity or decreased depression following a myocardial infarction
What are contraindications to resistance exercises?
- Acute inflammation * Joint effusion * Severe cardiovascular disease * Fracture * Joint/muscle pain during AROM or muscle testing
What is eccentric exercise?
Dynamic muscle contraction that causes joint movement as the muscle lengthens under tension
What is concentric exercise?
Dynamic muscle contraction that causes joint movement as the muscle contracts and shortens
What are open chain exercises?
Unrestricted movement in space of a peripheral segment
What are closed chain exercises?
The peripheral segment meets with considerable external resistance
What is the force-length curve of muscle?
Optimal length where sarcomere can generate greatest force
What is Exercise Induced Muscle Damage (EIMD)?
Damage to muscle fibers resulting from strenuous exercise, typically eccentric
What is DOMS?
Delayed onset muscle soreness, peaks 48 hours after eccentric exercise
What is the ‘Repeated Bout Effect’?
Adaptation of muscle after eccentric EIMD, leading to reduced markers of muscle damage
What are key components to stretching?
- Proper alignment
- Stabilization
- Intensity
- Duration, speed, frequency, & mode of stretch
What are contraindications to stretching?
- Acute infection/inflammation
- Unhealed fractures *
- Joint effusion
- Recent corticosteroid injection
- Hypermobility/instability
What is a contusion?
Muscle injury caused by sudden external force, resulting in bleeding in deep muscle regions
What is the recovery time for a grade I contusion?
2-3 weeks
What is myositis ossificans?
Formation of bone within muscle, often from direct blow or repeat injury
What are the grades of muscle strains?
- Grade I: Microscopic tearing
- Grade II: Partial tearing
- Grade III: Complete tear
What is the recommended initial treatment for muscle strains?
PRICE (Protection, Rest, Ice, Compression, Elevation)