OCR GCSE Biology Practice Exam 2025 – Comprehensive All-in-One Guide to Exam Success

Question: 1 / 1090

What is the recommended training level relative to your maximum heart rate for optimal cardiovascular fitness?

40% of your maximum heart rate

60% of your maximum heart rate

For optimal cardiovascular fitness, training at around 60% of your maximum heart rate is generally recommended. This intensity level allows you to improve your aerobic capacity and endurance without the risk of overexertion that can occur at higher intensity levels, such as 80% or 100%.

At this training level, you are in a moderate exercise zone where you can build and sustain aerobic activity. It promotes effective fat utilization for energy while also being manageable for most individuals, enabling longer training sessions. Training at too low a percentage, like 40%, may not sufficiently challenge the cardiovascular system to achieve fitness improvements.

In summary, 60% of your maximum heart rate effectively balances intensity and duration, facilitating cardiovascular health and fitness gains.

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80% of your maximum heart rate

100% of your maximum heart rate

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