16/05/2024
In a recent YouTube video, Matt Casturo provided an insightful and instructive analysis of zone two cardio training, a topic that is often misunderstood. Zone two, which falls on the lower end of the five heart rate zones, is commonly referred to as “base training”. Casturo explains that zone two is characterised by heart rates that range between 60% and 70% of an individual’s maximum heart rate. To determine one’s maximum heart rate, Casturo recommends utilising the Bruce protocol, although he recognizes that using the formula 220 minus one’s age is simpler, albeit less precise.
Casturo acknowledges and addresses several misconceptions and challenges associated with zone two training. One significant problem with zone two training is that it can be difficult to run at a slow enough pace to maintain a heart rate within zone two. To address this issue, Casturo recommends incorporating walking periods into training routines, which can prevent the heart rate from exceeding zone two.
Another common misconception about zone two cardio training is that it is ineffective to train at such a low heart rate. However, Casturo discusses compelling research comparing Boston Marathon qualifiers and non-qualifiers. The findings suggest that qualifiers trained at low intensity for 77% to 84% of their overall training runs, while non-qualifiers trained at low intensity for only 36% to 43% of their training runs. Training at lower intensities allowed qualifiers to accumulate more training volume than non-qualifiers. Specifically, qualifiers ran an average of 40 to 46 miles per week, while non-qualifiers ran significantly fewer miles per week (23 to 35 miles).
Casturo concludes his video by guiding how to program zone two training and offering three program examples. For those interested in enhancing their aerobic conditioning or seeking to learn more about zone two cardio training, Casturo’s video is highly recommended.
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