Lectures 21-23 Flashcards
Stroke (Cerebrovascular disease)
- Cerebro = _
relating to the brain
Stroke (Cerebrovascular disease)
- vascular = _
Relating to the vessel
Brain functions
- controls movements
- stores memories
- source of thoughts, emotions & language
- many other functions: perception, breathing & digestion, etc.
To work properly brain needs _
oxygen
Although brain makes up only 2% of body weight, it uses almost _ % of the oxygen
18.5%
Brain is No. _ major single-organ that consumes the most oxygen
2 (Liver, brain, heart)
Brain cells are very _ to decrease in oxygen & don’t survive or function well long without it
sensitive
Because brain cells will _ if the supply of blood which carries oxygen is stopped, the brain has _ for the blood
- Even if other organs need blood, the body attempts to supply the brain with a constant flow of blood
- The blood brings many materials necessary for the brain to function properly
- die
- top priority
Stroke Pathophysiology:
87% of all cases
- Blood flow is interrupted/reduced, cells die within minutes without oxygen
Blockage (ischemic stroke)
Stroke Pathophysiology:
Every cell needs oxygen to function
- Cells use oxygen to break down sugar to get energy from the food
– This process is called _
cellular respiration
Stroke Pathophysiology:
The brain can survive for up to _ minutes after the heart stops
- This is why CPR should be started within _ minutes of cardiac arrest
– After _ minutes without CRP however, the brain begins to die
6
Stroke Pathophysiology:
Occurs when a blood clot blocks or plugs an artery leading to the brain
- A blood clot often forms in arteries damaged by the build-up of plaques (atherosclerosis)
- It can occur in the carotid artery of the neck as well as other arteries
Ischemic stroke
Stroke Pathophysiology:
Sudden brain bleeding puts too much pressure on cells which damages and kills them
Burst (hemorrhagic stroke)
Stroke Pathophysiology:
Hemorrhage/blood leaks into brain tissue
Hemorrhagic stroke (Burst)
Stroke Pathophysiology:
Risk factors
- High blood pressure
- Atherosclerosis
- Genetics & family history
Stroke Pathophysiology:
medical emergency —> _ & _
disability & death
Stroke Pathophysiology:
Build up of fats, cholesterol, and other substances in and on the artery walls; narrowing of blood vessels and build-up of plaque on artery walls
Atherosclerosis
Stroke Pathophysiology:
Can’t be cured, but is _
preventable
Stroke in the US:
_ leading cause of death
5th
Stroke in the US:
Killing >/= 140,000 Americans/year: 1 of every _ deaths
20
Stroke in the US:
Someone has stroke every _, someone dies of stroke every _
- 40 sec
- 4 minutes
Stroke in the US:
Every year, about _ Americans have a stoke
- About 610,000 of these are first or new strokes
- About 185,000 are recurrent strokes
800,000
Stroke in the US:
Costs about _ annually
$34 Billion
Stroke Consequences:
Symptoms of stroke include _
trouble walking, speaking, and understanding, as well as paralysis or numbness of the face, arm, or leg
Stroke Consequences:
_ disabilities
- Depending on how long the brain lacks blood flow & which part was affected
- Paralysis
- Loss of muscle movement
- Balance problems
Temporary or permanent
Stroke Consequences:
Difficulty _ & _
talking & swallowing
Stroke Consequences:
_ loss & _ difficulties
Memory loss & thinking difficulties
Stroke Consequences:
Emotions problems & _
depression
Stroke Consequences:
_ & numbness
pain
Stroke Consequences:
_ changes & _ ability
behavior changes & self-care ability
Stroke ages affected
- Some 0-2
- Some 19-40
- More 41-60
- Most 60+
Effects of stroke on Ex Response:
Lose approximately _% of aerobic capicity
50%
Effects of stroke on Ex Response:
Overall _ reduced
physical fitness
Effects of stroke on Ex Response:
_ diability
Neurological
Effects of stroke on Ex Response:
Energy costs _
doubled
Effects of stroke on Ex Response:
Physical activity can be sustained for a _
short period
Effects of stroke on Ex Response:
Most stoke survivors are unable to _
independently perform ADLs
Stroke - Ex Testing:
Stroke survivors
- oxygen uptake is _
- Incompetence & early-onset fatigue are common
lower
Stroke - Ex Testing:
_ method, pre-screening algorithm & CVD risk factor
self-guided
Stroke - Ex Testing:
Senior fitness test, FITNESSGRAM
- _ setting recommended for most stroke survivors
Lab setting
Stroke - Ex Testing:
Use _ walk when the condition is mild
6-minute (consider 3 mins)
Stroke - Ex Testing:
_ intensity during testing
Low
Stroke - Ex Programming:
For people with stroke, follow the _ guideline
chronic disease guideline
Stroke - Ex Programming:
For people with stroke, follow the chronic disease guideline
- Be _, start with _ & _
- Conservative
- low intensity & shorter time
Stroke - Ex Programming:
Include _
aerobic, muscular, flexibility & neuromotor
Stroke - Ex Programming:
Physical & occupational therapy are typically utilized for up to 3-6 months following a stroke to improve/restore _
functional mobility, balance, and return to ADL
Stroke - Ex Rx:
Patients may have _ such as other CVDs, arthritis, and metabolic disorders
- All _ should be considered when prescribing Ex
comorbidities
Stroke - Ex Rx:
Main objective is to _
restore a patient’s ability to return to ADL
FITT for Stroke Survivors:
Aerobic
- Frequency
3-5 days/week
FITT for Stroke Survivors:
Aerobic
- Intensity
– If HR data are available from a recent GXT, use _, in the absence of a GXT or if atrial fibrillation is present, use _
- 40-70% of HRr
- RPE of 11-14 on a 6-20 scale
FITT for Stroke Survivors:
Aerobic
- Time
progressively increase to 20 to 60 min/day
- Consider multiple 10 minute sessions
FITT for Stroke Survivors:
Aerobic
- Type
Cycle ergometry & semirecumbent seated steppers
- may need modification based on functional & cognitive difficulties
- Treadmill walking can be considered if patient has sufficient balance & ambulation with very minimal or no assist
FITT for Stroke Survivors:
Resistance
- Frequency
2 nonconsecutive days/week
FITT for Stroke Survivors:
Resistance
- Intensity
50-70% of 1RM
FITT for Stroke Survivors:
Resistance
- Time
1-3 sets of 8-15 repetitions
FITT for Stroke Survivors:
Resistance
- Type
use equipment & exercises that improve safety in those with deficits (ex: strength, endurance, movement, balance)
- Machine vs free weights
- Bar vs. hand-held weights
- Seated vs standing
FITT for Stroke Survivors:
Flexibility
- Frequency
> /= 2 days/week with daily being most effective
FITT for Stroke Survivors:
Flexibility
- Intensity
Stretch to the point of feeling tightness or slight discomfort
FITT for Stroke Survivors:
Flexibility
- Time
10-20 sec hold for static stretching
- 2-4 reps of each exercise
FITT for Stroke Survivors:
Flexibility
- Type
Static, dynamic, and/or PNF stretching
FITT for Stroke Survivors:
Neuromotor
- Frequency
2-3 days/week
FITT for Stroke Survivors:
Neuromotor
- Intensity
An effective intensity has not been determined
FITT for Stroke Survivors:
Neuromotor
- Time
> /= 20-30 min/day may be needed
FITT for Stroke Survivors:
Neuromotor
- Type
Exercise involving motor skills (ex: balance, agility, coordination, gait), proprioception exercise training, and multifaceted activities (ex: Tai Chi, yoga) are recommended for older individuals to improve & maintain physical function & reduce falls in those at risk for falling
Spinal cord:
- Normally 32-34 pieces
- Upper 24 pieces are _
- Lower 8-10 pieces are _
- separated by discs
- fused
Spinal cord function:
Brain and spinal cord together make up the _
central nervous system
Spinal cord function:
Transmit neural signals between the brain and the rest of the body
Motor
Spinal cord function:
Works as a conduit for sensory information travels up to brain, and finally as a center for coordinating certain reflexes
Sensation