The FITT of the Ex Rx | Professional committee/organization | |||||
JNC 8[1] and AHA/ACC Lifestyle Work Group[2] | JNC 7[3] | AHA[4] | ACSM[5] | ESH/ESC[6] | CHEP[7] | |
Frequency (how often?) | 3 to 4 sessions/week ≥12 weeks | Most days of the week | Most days of the week | Most, preferably all, days of the week | 5 to 7 days/week | 4 to 7 days/week in addition to habitual daily activity |
Intensity (how hard?) | Moderate to vigorous* | None specified | Moderate to high, >40 to 60% of maximum | Moderate 40 to <60% of VO2reserve | Moderate* | Moderate* |
Time (how long?) | 40 minutes/session | ≥30 minutes/day | 150 minutes/week | 30 to 60 minutes continuous or accumulated in bouts ≥10 minutes each | ≥30 minutes/day | Accumulation of 30 to 60 minutes/day |
Type (what kind?) Primary | Aerobic | Aerobic | Aerobic | Aerobic | Aerobic | Dynamic exercise (aerobic) |
Evidence rating | "High"¶Δ Grade B¶Δ Class IIa level of evidence A◊ | Class 1 level of evidence A◊ | Evidence category A,§¥ evidence category B§¥ | Class 1 level of evidence A-B‡ | Grade D†,** | |
Adjuvant | Dynamic RT | Dynamic RT 2 to 3 days/week Moderate 60 to 80% 1-RM, 8 to 12 repetitions | Dynamic RT 2 to 3 days/week | Dynamic, isometric, or handgrip RT | ||
Evidence rating | Class IIa level of evidence B◊ | Evidence category B§,¶¶ | Grade D† | |||
BP reduction (mmHg) | 1 to 5 | 4 to 9 | 5 to 7 among those with hypertension | 2 to 3 overall; 5 to 7 among those with hypertension |
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