THERAPEUTIC EXERCISE/ BEDREST/ AGING

Question 1

SARCOMER: A BAND

Answer 1

RUNS THE LENGTH OF THE MYOSIN (THICK ) FILAMENT.

Question 2

SARCOMER: I BAND

Answer 2

COMPOSED OF ACTIN (THIN) FILAMENT. INCLUDES THE Z LINE

Question 3

TYPE 1 MUSCLE FIBER

Answer 3

FOR LOW INTENSITY, LONG DURATION ACTIVITIES.SLOW TWITCH. OXIDATIVE. RED FIBERS.

Question 4

TYPE 2 MUSCLE FIBERS

Answer 4

WHITE FIBERS. HIGH INTENSITY SHORT DURATION ACTIVITIES. IIa: FATIGUE RESISTANT. FAST TWITCH, OXYDATIVE/GLYCOLITIC. IIb: FAST FATIGABLE. FAST TWITCH, GLYCOLITIC.

Question 5

CARDIOVASCULAR EFFECT OF EXERCISE

Answer 5

DECREASE RESTING HEART RATE. INCREASED PEAK BP DURING EXERCISE, DECREASED BP AT REST. INCREASED SV DURING MAX EXERCISE. REDUCE MVO2 AT REST AND SUBMAXIMAL ACTIVITIES. INCREASES CARDIAC OUTPUT.

Question 6

IMOBILIZATION AND STRENGTH DECREASE

Answer 6

1-1.5% PER DAY, 20-30% A WEEK. 5 WEEKS COSTS 50% OF STRENGTH. PLATEAU IS REACHED AT 25-40% OF ORIGINAL STRENGTH.
MUSCLE MASS LOSS OF 5-10% PER WEEK.

Question 7

IMPAIRMENT

Answer 7

MANIFESTATION OF A DISEASE THROUGH PHYSICAL OR PSYCHOLOGICAL ABNORMALITY. EX: WRIST DROP

Question 8

DISABILITY

Answer 8

INABILITY TO PERFORM A PARTICULAR ACTIVITY OR FUNCTION. EX: INABILITY TO WRITE

Question 9

HANDICAP

Answer 9

INABILITY TO PERFORM AN USUAL ROLE IN THE SOCIETY. EX: LOSS OF JOB

Question 10

FRAILTY

Answer 10

AGE AND DISEASE RELATED LOSS OF ADAPTATION. ASSOCIATED WITH WEIGHT LOSS >5%, WEAKNESS ON HANDGRIP, EXHAUSTION, WALKING SPEED >6SEC/15 FEET, DECREASED PHYSICAL ACTIVITY. FRAILTY IS A RISK FACTOR FOR POOR OUTCOME.

Question 11

PULMONARY CHANGES WITH AGING

Answer 11

DECREASED VC. DECREASED PO2. DECREASED FEV1. DECREASED MAXIMUM MINUTE VENTILATION. NO CHANGES IN PCO2, pH, TOTAL LUNG CAPACITY AND OXYGEN SATURATION (OR SLIGHTLY REDUCED). INCREASED RESIDUAL VOLUME AND FUNCTIONAL RESIDUAL CAPACITY.

Question 12

MUSCLE FIBERS CHANGE WITH AGING

Answer 12

INCREASED IIa AND DECREASE IIb