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Episode #2 - Molly and RoApril 30, 2008 Molly Huddle and Roisin McGettigan (Ro) who run for Run Providence do a ladder workout on the Brown University track in Providence, Rhode Island. Molly Huddle was a mulitple All-American at Notre Dame and Ro is the Irish record holder in the steeplechase and finished 2nd at the 2007 World Athletic final.
Song is "Driving on Empty" by Soundside.
Click here for more Soundside music.
Molly Huddle is sponsored by  About Molly Huddle | Organization: | Notre Dame | | Bio: | Since an early age, Molly Huddle has been determined to be an elite runner. So much so, that she didn’t allow the absesnce of a cross country or track program at her high school stop her- she simply… + See More +Since an early age, Molly Huddle has been determined to be an elite runner. So much so, that she didn’t allow the absesnce of a cross country or track program at her high school stop her- she simply… + See More - See Less -Since an early age, Molly Huddle has been determined to be an elite runner. So much so, that she didn’t allow the absesnce of a cross country or track program at her high school stop her- she simply made her own; with herself as the only team member. Since school records were too easy to come by, Molly decided to go out and break the national high school 2-mile record of 10:01. Following a stand out collegiate career at Notre Dame, Molly has found success running professionally for Saucony, and has found a new team. Under the tutelage of Ray Treacy, Molly trains with some of the finest female distance runners in the world in Providence, RI. This environment has proved to be beneficial, as through her 07/08 campaign, Molly has set PR’s in the 5,000 meters (15:17) and bested the Olympic “A” standard in the 10,000 meters (31:27). Molly continues to be one of the premier distance runners in the United States, and recently made it to the 5,000m and 10,000m finals at the 2008 US Olympic Trials. |
Coverages Molly Huddle is part of (11):
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very cool workout... thanks again mark- you're great!
These girls and Kim SMith are going to Rock Stanford this weekend!!!!!
Yes it is... And I was there.
Darn it
From a practical sense, I would guess that the pace changes in this workout are intended to simulate what might happen in the trials 5k. You never know, but it might start with some chillin' 75s (the first mile), have an extended period of 71s (some of the middle distance intervals) later on, and close with a hard 400.
This is just a guess, but changing pace in a workout might be important for neuromuscular adaptation. It probably stimulates the action potentials in your nerves to be triggered faster down the motor neuron axon to the neuromuscular junction; resulting in more efficient release of calcium ions into the nerve ending and therefore more synaptic vesicles full of acetylcholine to be released into the synapse. More acetylcholine = more action potential propagation in the muscle fiber.
Another factor in changing pace is the mechanical and chemical processes of the muscle fiber and sarcomere itself. During stimulation of the muscle cell, the motor neuron releases the neurotransmitter acetylcholine which travels across the neuromuscular junction (the synapse between the terminal bouton of the neuron and the muscle cell). The action potential then travels along T (transverse) tubules until it reaches the sarcoplasmic reticulum; the action potential from the motor neuron changes the permeability of the sarcoplasmic reticulum, allowing the flow of calcium ions into the sarcomere. The outflow of calcium allows the myosin heads access to the actin cross bridge binding sites, permitting muscle contraction.
I'm no physiologist though.
Why is changing pace in a workout important to racing and training?