Archive for May, 2013

Gold Nuggets in Posts from February – May 2013

May 30th, 2013

Student: So you have found a lot of gold nuggets in all these posts.

Professor:. So I’ve grouped these 14 posts in the following:

  1. Basic movement mechanisms
  2. Motor synergies and patterns
  3. Coordinated adaptation to ‘limping’
  4. The sense of effort

In this post I’ll dig into the first three groups and save The Sense of Effort group for the initial post of next trimester.

1.      Basic movement mechanisms

Professor: A hugh gold nugget is from the second post, NOPE; Spinal Interneurons are NOT Activated In A Graded Manner.

This dropping out of interneurons is the nugget found by McLean et al. (2008).

  • The graded recruitment of motoneurons continues to be a universal phenomenon.
  • However, different locomotor speeds involve some shifts in the set of active interneurons.
  • Some interneurons active at slow speeds are silenced at faster ones and this pattern occurs both within and between excitatory classes.
  • Thus, the interneurons behave differently from the motoneurons with respect to recruitment because the motoneurons only add neurons to the active pool as speed increases, while the interneurons add new ones while removing others that were active at slower speeds

Student: The active set of interneurons continuously shifts with changes in speed for the zebra fish and perhaps as a general principle for all vertebrates. Does this happen with fatigue?

Professor: Very intriguing question, and the answer(s) I hope will come in the next set of posts.

Student: “What Is the Primal Movement Starter?” Classy title; how come the term “primal”?

Professor: Consider escaping from the sabertooth tiger as an ancient survival tactic. The Trigger Command Neuron is even found in a primordial creature like the leech.

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Halt and Review

May 14th, 2013

Student: How many blog posted this year?

Professor: This is the 14th.

Student: Can you remember the topics for the first couple of posts? Hey, I know you’re retired, and I am not suggesting you getting senile.

Professor: Well, I’m guessing they were about locomotion.

  • Maybe the next post could be a review of these posts.
  • And how often would a review be advisable?
  • Could the years be divided into blocks?

Student: I like looking for blocks of posts. Indicates to me that the website isn’t scattered, just doing random ‘shoot-from-the-hip’ postings.

Professor: Me too. How does publishing on a trimester basis seem to you?

  • Feb 2013 – May 2013
  • Jun 2013 – September 2013
  • October 2013 – January 2014

Student: Superb. And the last month would have catch-up time.

Professor: You’re right in the bulls eye.

Take Home: Next Endurance-Education Blog Trimester will be June 2013 – September 2013.

Next for February – May 2013: Review of the recent Blog Posts with the challenges for next trimester.