The Spiral Out Podcast
PBM: Grand Unifying Theory?

PBM: Grand Unifying Theory?

November 15, 2020

In this episode we discuss some of the limitations that arise when trying to apply the Psychobiological Model to the sport of CrossFit and Fitness. We also elaborate on how we believe the Power Duration Relationship and the Psychobiological Model, when used synergistically, can help explain an individual's performance and competitive behavior in the sport of fitness. 

PBM: Other Variables

PBM: Other Variables

November 8, 2020

In the episode we elaborate on more variables included within the psychobiological model.  

PBM: Motivation

PBM: Motivation

November 1, 2020

In this episode we discuss motivation and how it fits into the psychobiological model when interpreting athletic performance. We also discuss Brehm's distinctions between potential motivation and motivational intensity (link below), and provide real examples of how they are displayed in CrossFit. Motivation is obviously an important factor in any athletic endeavor and we hope this episode offers a different way to think about motivation. 

 

https://www.researchgate.net/publication/280683142_Refining_the_prediction_of_effort_Brehm's_distinction_between_potential_motivation_and_motivation_intensity

PBM: Sense of Effort

PBM: Sense of Effort

October 4, 2020

In this episode we talk about some of the outside factors that affect your sense of effort when training or competing. We elaborate on how sleep, nutrition, and life stress can alter the outcome of a given task from a purely psychological perspective. We also discuss how you can decrease your sense of effort by controlling some of these outside factors.

Intro to PBM

Intro to PBM

September 18, 2020

In this episode we discuss the Psychobiological Model as explained by Sam Marcora. How does one's physiology interplay with their psychology, and how does this affect the outcome? The next few episodes we will explain the Psychobiological Model in depth and how we think of the model when designing training. 

Power-Duration: Variables and Limitations

Power-Duration: Variables and Limitations

August 23, 2020

In this episode we take a look at variables and limitations when trying to use the Power-Duration theory to predict performance in CrossFit. If you haven't listened to the previous episodes on Power-Duration, you will want to go back before listening to this one. We also briefly hint at what our next episode will be about. 

Power-Duration: Duty Cycle

Power-Duration: Duty Cycle

August 2, 2020

In this episode we continue our discussion on the power duration relationship focusing on the concept of duty cycle. Duty cycle refers to a work to rest ratio that can be used to mathematically predict failure/fatigue at a given task. We then explain why we think this concept can be used when discussing pacing in CrossFit. 

#OutsideTheBox

#OutsideTheBox

July 9, 2020

In this episode Michael talks about the history of his fitness competition known as Outside The Box. The purpose of this episode was to explain how the competition came to be, as well as discussing the format that Michael uses to develop the events. 

Power-Duration: Sustainable Intermittency

Power-Duration: Sustainable Intermittency

June 20, 2020

In this episode we elaborate more on W' Prime and its relation to Critical Power. We also explain the test for finding Critical Power, as well as give a brief example on how we think about these terms when programming. We plan to give more examples and how to better design workouts using these concepts in a later episode. 

If you would like to learn more, please refer to the study below:

https://journals.lww.com/acsm-msse/fulltext/2012/08000/modeling_the_expenditure_and_reconstitution_of.15.aspx 

 

Power Duration Relationship

Power Duration Relationship

June 5, 2020

In this episode we introduce the power-duration (PD) relationship. It is a broad explanation of how critical power/speed/torque is used to predict when someone will reach task failure at a given endurance task (cycling, running, etc.). This episode is only meant to serve as an introduction to the concept. In the next episode we will discuss ideas on how the PD relationship may relate to training and competing in CrossFit. 

If you are interested in learning more, please refer to the links below. 

https://journals.lww.com/acsm-msse/Fulltext/2010/10000/Critical_Power__Implications_for_Determination_of.11.aspx

 

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