PSY241 EXAM3 CH7-9 (sleep, obesity,
drug abuse) 2025 Expert Verified | Ace
the Test
Physical activity: - 🧠ANSWER ✔✔-bodily movement produced by skeletal
muscles
-requires energy expenditure
-exercise=planned, repetitive, purposeful physical activity
-increase wellbeing
2 Type exercise: - 🧠ANSWER ✔✔1. aerobic exercise =
-depends on air/cardio
-light intensity
,-long time (30mins)
-ex. swimming,cycling,running
2. anaerobic exercise=
-air independent
-high intensity
-short time (<30min)
-ex. weight training, sprinting
Basal metabolic rate(BMR): - 🧠ANSWER ✔✔-baseline calories the body
needs at rest
-50-70% calories goes to vital organs
-7-10% from food breakdown
-calorie=measure of food energy needed to raise 1*C of 1g water
-assesses physically active status
*healthy=high BMR (rate which body burns, higher better)
4 characteristics of physical fitness: - 🧠ANSWER ✔✔1. muscular strength
,2. muscular endurance
3. flexibility
4. body composition
Benefits of physical activity: - 🧠ANSWER ✔✔-Cardiorespiratory Endurance
(aerobic)=ability to supply O2 to working muscles
-VO2max=amount O2 consumption rate
-includes MS, ME, FX, BC
-boost immunity, health, mood
Consequences of sedentary life: - 🧠ANSWER ✔✔-increase health care
costs
-lowers workpalce productivity
-shortens telomere length (life expectancy)
-recreational sitting leads to muscle atrophy, inflammation
-increase aging (what you don't use, you lose)
Recommended activity levels: - 🧠ANSWER ✔✔-at least 30min for 5 days
each week
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, -at least 75min vigorous throughout week
-best 300min per week, 2-3 days muscle strengthening, areobic, weight
bearing
Weight control: - 🧠ANSWER ✔✔-increase aerobic exercise and resistance
exercise
-lowers ghrelin, increase PYY
-exercise reduces hunger (unless you overwork)
exercise VS chronic illness: - 🧠ANSWER ✔✔-increase bone density
(prevent osteoporosis)
-decrease heart disease, cancer, DM2, metabolic syndrome
-decreases triglycerides LDL (bad fat), increase HLD (good fat)
-delay aging of WBC
Metabolic syndrome VS exercise: - 🧠ANSWER ✔✔-cluster of conditions
(+BP, diabetes, ab obesity, low HLD, high TG)
-symptoms together increase CVD, stroke, DM2
-obese sedetary diabetic ppl are prone to get MetS
-metabolic flexibility
drug abuse) 2025 Expert Verified | Ace
the Test
Physical activity: - 🧠ANSWER ✔✔-bodily movement produced by skeletal
muscles
-requires energy expenditure
-exercise=planned, repetitive, purposeful physical activity
-increase wellbeing
2 Type exercise: - 🧠ANSWER ✔✔1. aerobic exercise =
-depends on air/cardio
-light intensity
,-long time (30mins)
-ex. swimming,cycling,running
2. anaerobic exercise=
-air independent
-high intensity
-short time (<30min)
-ex. weight training, sprinting
Basal metabolic rate(BMR): - 🧠ANSWER ✔✔-baseline calories the body
needs at rest
-50-70% calories goes to vital organs
-7-10% from food breakdown
-calorie=measure of food energy needed to raise 1*C of 1g water
-assesses physically active status
*healthy=high BMR (rate which body burns, higher better)
4 characteristics of physical fitness: - 🧠ANSWER ✔✔1. muscular strength
,2. muscular endurance
3. flexibility
4. body composition
Benefits of physical activity: - 🧠ANSWER ✔✔-Cardiorespiratory Endurance
(aerobic)=ability to supply O2 to working muscles
-VO2max=amount O2 consumption rate
-includes MS, ME, FX, BC
-boost immunity, health, mood
Consequences of sedentary life: - 🧠ANSWER ✔✔-increase health care
costs
-lowers workpalce productivity
-shortens telomere length (life expectancy)
-recreational sitting leads to muscle atrophy, inflammation
-increase aging (what you don't use, you lose)
Recommended activity levels: - 🧠ANSWER ✔✔-at least 30min for 5 days
each week
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, -at least 75min vigorous throughout week
-best 300min per week, 2-3 days muscle strengthening, areobic, weight
bearing
Weight control: - 🧠ANSWER ✔✔-increase aerobic exercise and resistance
exercise
-lowers ghrelin, increase PYY
-exercise reduces hunger (unless you overwork)
exercise VS chronic illness: - 🧠ANSWER ✔✔-increase bone density
(prevent osteoporosis)
-decrease heart disease, cancer, DM2, metabolic syndrome
-decreases triglycerides LDL (bad fat), increase HLD (good fat)
-delay aging of WBC
Metabolic syndrome VS exercise: - 🧠ANSWER ✔✔-cluster of conditions
(+BP, diabetes, ab obesity, low HLD, high TG)
-symptoms together increase CVD, stroke, DM2
-obese sedetary diabetic ppl are prone to get MetS
-metabolic flexibility
