PODCAST EPISODE

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In Session 329, I’m joined once again by Dr. Nick Green, Ph.D., BCBA-D, who’s been doing some really interesting work at the intersection of fitness and behavior science.

In this episode, Nick walks us through the basics of heart rate training zones and why simply “working out” isn’t always enough. We talk about the general recommendation of 150 minutes of moderate to vigorous activity per week, but more importantly, how to make sure that time is actually spent in the right zones—particularly Zones 2 through 4—where you’re going to see real cardiovascular benefits.

From there, we get into VO2 max, what it is, why it matters, and how you can measure or estimate it—even without access to a lab. Nick also shares some practical training strategies, including the Norwegian 4x4 protocol, which is a structured way to improve cardiovascular fitness through intervals of high-intensity work followed by recovery.

As you might expect, we also spend a good amount of time talking about behavior. Why is it so hard for people to stick with an exercise routine? What gets in the way? And how can we apply behavior-analytic principles to improve adherence?

Nick makes a compelling case for the role of planning and accountability. One of the things he’s seen in his coaching practice is that when people invest in structured support, they’re much more likely to follow through. We talk about how environmental variables, scheduling, and clear contingencies can make or break a fitness routine.

This was a really practical conversation—whether you’re a behavior analyst looking to apply these principles to your own life, or just someone trying to get a little more consistent with exercise.

If you’re interested in working with Nick or learning more about his coaching services, be sure to check out his website, which you can find in the resource list below:

• BehaviorFit.com (Nick's website; check out his courses here!)
• Nick on LinkedIn
• BehaviorFit's Instagram
• Nick's previous BOP Interviews: Session 47, Session 105, and Session 132
• Fogel, et al. (2010). The effects of exergaming on physical activity among inactive children in a physical education classroom.
• Green, et al. (2016). Decreasing bouts of prolonged sitting among office workers.
• Heart Rate Training 101
• Heart Rate Zone Calculator
• Norwegian 4X4 Study
• Norwegian 4X4 20-Year Heart-Age Reduction Study
• High Intensity Interval Training (HIIT) effects on VO2 Max

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