ACSM lab questions

bethdrysdale94's version from 2017-01-22 11:39

Section 1

Question Answer
what are the goals of the new exercise pre-participation screening process?identify individuals 1) who should receive medical clearance before initiating an exercise program or increasing the frequency, intensity, and/or volume of their current program, 2) with clinically significant disease(s) who may benefit from participating in a medically supervised exercise program, and 3) with medical conditions that may require exclusion from exercise programs until those conditions are abated or better controlled
3 primary factors which determine the necessary pre-exercise screening pathway within new ACSM guidance?1) the individual’s current level of physical activity, 2) presence of signs or symptoms and/or known cardiovascular, metabolic, or renal disease, and 3) desired exercise intensity, as these variables have been identified as risk modulators of exercise-related cardiovascular events
What problems are apparent with overly vigorous pre-exercise screening processes?requirement for exercise preparticipation health screening, which may involve a visit to a health care provider and/or diagnostic testing to potentially identify underlying CAD and other occult CVD (3,16,46). Unnecessary referral to health care providers for screening may lead to a high rate of false-positive exercise test responses in some populations, necessitating medical follow-up and additional noninvasive/invasive studies when they are not needed. Such studies can place unnecessary financial and other burdens on the individual and health care system
What physiological processes are thought to underpin exercise-induced cardiac events in the young and adults (over 35)?HCM and SCD - Autopsy studies of those who experienced SCD suggest that underlying CAD contributed to most cases among adults age 35 yr and older, whereas exertion-related SCD in younger people is often attributed to structural cardiovascular abnormalities, most notably, hypertrophic cardiomyopathy
Kim et al (2012) - what is cardiac arrest rate and SCD incidence rate in marathon and half-marathon runners?1/184000 and 1/256000. overall cardiac arrest incidence rate of one per 184,000 runners and an SCD incidence rate of one per 256,000 runners, which translate to 0.20 cardiac arrests and 0.14 SCD per 100,000 estimated runner-hours

Section 2

Question Answer
ACSM position stand - what % weight loss is associated with improved clinical outcomes? Guidelines of the National Heart, Lung, and Blood Institute (NHLBI) encourage a 10% reduction in weight, although considerable literature indicates reduction in health risk with 3% to 5% reduction in weight
how much PA or exercise is deemed necessary to induce clinically relevant weight loss?Greater amounts of PA (>250 min wk(-1)) have been associated with clinically significant weight loss
physical activity needed to prevent weight gain?Cross-sectional and prospective studies indicate that after weight loss, weight maintenance is improved with PA >250 min wk(-1). However, no evidence from well-designed randomized controlled trials exists to judge the effectiveness of PA for prevention of weight regain after weight loss