Exercise Considerations across the Lifespan CHAPTER 14
283 Aerobic Frequency
≥2 days/week of moderate intensity; 1 day/week of vigorous intensity; 2–3 days/week for a combination of moderate and vigorous intensity
Resistance ≥1 day/week
Flexibility ≥2 days/week
Intensity
On a scale of 0–10 for level of physical exertion, 3–4 for moderate intensity and 7–8 for vigorous intensity
Light intensity (i.e., 40–50% 1-RM) for beginners; progress to moderate-to-vigorous intensity (60–80% 1-RM); alternatively, moderate (5–6) to vigorous (7–8) intensity (on a 0–10 scale)
Stretch to the point of discomfort.
Time
15–20 minutes/day of moderate intensity; 10 minutes/day of vigorous intensity
8–10 exercise involving the major muscle groups; 1–3 sets of 8–12 repetitions each
Hold stretch for 15–20 seconds.
Type
Any modality
Olympic-style lifts
Any physical activities that maintain or increase flexibility using slow movements that terminate in static stretches for each muscle group rather than rapid ballistic movements
American Council on Exercise
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