In training for cardiovascular endurance, which weekly pattern is recommended?

• A. 2-3 sessions per week, 60 minutes each
• B. 3-5 sessions per week, 20-30 minutes each at age-adjusted HR
• C. 5-7 sessions per week, 10 minutes each
• D. 7 days per week for 15 minutes

Answer: (B)

For cardiovascular endurance, you want a weekly pattern that provides steady aerobic stimulus with enough rest to recover. The best approach is three to five sessions per week, with each session lasting about 20 to 30 minutes, and performed at an age-adjusted heart-rate target. This combination gives enough total weekly volume to drive endurance improvements while staying manageable and sustainable, which helps with adherence over time. Training in an age-adjusted heart-rate zone means you’re working hard enough to stimulate the cardiovascular system but not so hard that recovery becomes a problem, safety is compromised, or motivation drops.

Patterns with very short daily sessions can underload the system, and those with either too few or too long sessions can lead to slower progress or greater fatigue. A moderate number of sessions at a moderate duration hit the right balance of intensity, volume, and recovery for most people.