Archive for June, 2013

Merging Locomotor Physiology and Perceptual Psychology

June 26th, 2013

Professor: Dr Arthur Dickinson, I apologize for leaving your name off the Stockholm article and presentation. In fact, Art’s Applied Exercise Physiology Lab was the actual location of the study.

Student: Wasn’t this presentation based on a preliminary analysis of Dave Stamper’s MS thesis with Dr Art Dickinson as his advisor and in Art’s lab?

Professor (remorsefully): Yes and Yes. My regrets.

Student: Thank you. And what kind of clues did you find between physiology and perceptions?

Professor: Our working hypothesis was that:

any impairments in the functioning of the motor and cardio-pulmonary systems would be associated with an increase of symptom severity that would influence the duration [of] a constant work task.

Professor: Please right click the following link and download the PDF if you want to look at the methods, etc.: Stockholm 1975 Presentation

Click link to read more

The Saga of Undifferentiated Fatigue, Er, Exertion

June 18th, 2013

Professor: First of all, thanks, Dr Rod Dishman, for cleaning up the Spherical Analysis for the symptom clusters (Dishman, 1994):

Dishman mod symptom hierarchy 1994

Student: Wow; no more overbearing, lines for the filling. Now I can see the cluster numbers clearly. Outstanding!

Professor: And now, how might these symptoms be the result of physiological processes? Here is a possible schema:

1976 Symptom Model

1976 Fatigue Symptoms Model

Figure 14-6. Pyramidal schema describing levels of symptom report during prolonged cycle ergometer work (from Kinsman & Weiser, 1976).

Click link to downlosd chapter: Kinsman Weiser Chapter 14 1976

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It Hurts to Run a Long Distance

June 11th, 2013

Student: Show-and-Tell today?

Professor (grinning): Yea. I get to uncover the history of the General Fatigue and Leg Fatigue symptom clusters.

Student: But I was really hurting during the weekend runs. My legs are heavy as lead and sore deep down to the bones. Why?

Professor: Hey, you are not alone. Here is what a former Olympian described being in a tough race:

“Legs are burning. Lungs are searing. …. muscles are dying. … The body is trying to pull the mind away from what it should be concentrating on. That’s really a big struggle.” [Kress & Statler, 2007]

Student: Okay, a foolish question, “What’s the purpose of these pesky hurts?”

Professor: An excellent question about symptoms. Please check out this website’s page: What’s happening? The page discusses the differences between “Symptoms” and “Signs”.

  • Symptoms serve as signals in an early warning prevention system.
  • They are signals used for self-biofeedback, so one will not ‘go out’ too fast and ‘hit the wall’.

Click the link to read more

Perception of Symptoms and the Regulation of Endurance Performance

June 5th, 2013

Professor: Welcome to this Blog and a look at topics for June 2013 thru September 2013.

Overall, the goal is to get deeply involved with Perception and Regulation of Endurance Performance.

Student: How deep is deeply involved?

Professor: How deep in physiology? Or how deep in psychology?

Student: Proske & Gandevia (2012) are physiologically deep.

Professor: Their excellent in-depth review on Proprioceptive Senses is superb. And they were clear that,

“The subject of proprioception lies at the boundary between

neurophysiology and neuropsychology. In this review we

have taken a more physiological view and restricted ourselves

to a discussion of aspects of the physiology of proprioceptors,

their central projection patterns, and the generated


Professor:  Please notice that last word, “sensations”. In their review, they soon comment that,

“An expanding field concerns the interactions
between proprioception, vision, and vestibular inputs.
While we discuss some of this, we have not reviewed the
area exhaustively. The same applies at the more
end of the subject, for example,
sensorimotor integration
in the generation
of concepts of “wellness,” emotions, and social interactions.”
[Emphasis added]

Professor: I am guessing that they do not want to discuss “perceptions”.
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