CAT Special Populations & Adaptations 2 — Questions and Answers
Question 1: Which exercise modification is most appropriate for a pregnant client in her third trimester performing aerobics?
- Avoid supine positions and reduce intensity to RPE 12-14 (Correct answer)
- Increase intensity to maximize cardiovascular benefits
- Eliminate all jumping and high-impact moves only
- Restrict exercise to 10-minute sessions maximum
Correct answer: Avoid supine positions and reduce intensity to RPE 12-14
In the third trimester, supine positions risk supine hypotensive syndrome, and intensity should stay moderate (RPE 12-14) per ACOG guidelines.
Question 2: A client with osteoporosis wants to join an aerobics class. Which activity poses the HIGHEST fracture risk?
- High-impact jumping and twisting movements (Correct answer)
- Water aerobics
- Low-impact step aerobics
- Chair-based aerobics
Correct answer: High-impact jumping and twisting movements
High-impact jumping combined with twisting places compressive and rotational forces on already fragile bones, significantly elevating fracture risk.
Question 3: When working with a client who has type 2 diabetes, the instructor should advise checking blood glucose before exercise if levels are:
- Below 100 mg/dL or above 300 mg/dL (Correct answer)
- Between 120-180 mg/dL
- Exactly 150 mg/dL
- Above 80 mg/dL only
Correct answer: Below 100 mg/dL or above 300 mg/dL
Exercise is generally contraindicated when blood glucose is below 100 mg/dL (hypoglycemia risk) or above 300 mg/dL (hyperglycemia/ketoacidosis risk).
Question 4: Which RPE range is generally recommended for older adults (65+) during moderate aerobic exercise?
- 11-14 on the Borg 6-20 scale (Correct answer)
- 17-19 on the Borg 6-20 scale
- 6-8 on the Borg 6-20 scale
- 15-16 on the Borg 6-20 scale
Correct answer: 11-14 on the Borg 6-20 scale
An RPE of 11-14 corresponds to light-to-moderate intensity, which is appropriate and safe for most older adult participants.
Question 5: A participant with multiple sclerosis (MS) reports heat sensitivity. The BEST aerobic adaptation is:
- Exercising in a cool environment and using cooling towels (Correct answer)
- Increasing exercise duration to build heat tolerance
- Avoiding all aerobic activity during MS flare-ups and otherwise exercising normally
- Scheduling sessions in the hottest part of the day
Correct answer: Exercising in a cool environment and using cooling towels
Uhthoff's phenomenon in MS causes temporary neurological symptom worsening with heat, so a cool environment minimizes this risk.
Question 6: For a client with hypertension, which aerobic exercise component should be lengthened to prevent blood pressure spikes?
- Warm-up and cool-down phases (Correct answer)
- Main aerobic interval sets
- Rest periods between songs
- Stretching component only
Correct answer: Warm-up and cool-down phases
Extended warm-up and cool-down allow gradual cardiovascular transitions, preventing abrupt blood pressure changes in hypertensive clients.
Question 7: A postpartum client (6 weeks after uncomplicated vaginal delivery) wants to return to aerobics. The instructor should first:
- Confirm medical clearance and start with low-impact modifications (Correct answer)
- Resume pre-pregnancy intensity immediately
- Focus exclusively on pelvic floor exercises for 6 more weeks before any aerobics
- Avoid all core engagement movements indefinitely
Correct answer: Confirm medical clearance and start with low-impact modifications
Medical clearance at the 6-week postpartum visit is required, and low-impact progressions protect healing tissues while rebuilding fitness.
CAT Special Populations & Adaptations 2
Which exercise modification is most appropriate for a pregnant client in her third trimester performing aerobics?