#124: Brent Ruby, PhD - The Human Ceiling of Energy Expenditure

Sigma Nutrition Radio

Danny Lennon

Sigma, Dietetics, Evidencebased, Nutrition, Training, Health & Fitness, Science, Diet, Fitness, Evidence, Bodybuilding, Health

4.8 • 626 Ratings

🗓️ 7 June 2016

⏱️ 60 minutes

🔗️ Recording | iTunes | RSS

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Summary

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Brent Ruby PhD, discusses his lab's fascinating work on the upper limits of energy expenditure, markers of over-training vs. real-world performance, and the role of environment & temperature on performance and recovery.

Brent is the director of the University of Montana Center for Work Physiology and Exercise Metabolism (WPEM). The center aims to mesh the research world with the operational field environment by combining study models that integrate the control of the laboratory with the hostilities of the field.

WPEM's high tech $1.5 million facility opened it's doors in 2008 and is a 3,550 sqft. facility which includes a biochemistry lab and a climate controlled environmental chamber that researches can manipulate temperature and humidity. The funds for the facility came from a U.S. Air Force grant, however the driving force which created the vision and made this possible was a choice made by Brent Ruby, the Director of WPEM. It was the choice to combine raw, rough field data with carefully controlled laboratory results to draw conclusions.

We discuss:
Energy demands on long-duration, endurance work and insights into the "human ceiling" of energy expenditure
Assessing energy expenditure
Markers of over-training vs. actual impact on performance in "real world" settings
Balancing the need for tightly controlled trials with designing studies that better simulate real world scenarios in practice
The role of environment during the recovery phase and glycogen resynthesis
Are sports nutrition products and supplements actually any better than fast food?
Hydration, water turnover and heat/cold stress
Why performance tanks in the heat: skin temperature versus core body temperature

Transcript

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0:00.0	They did a time trial every third day, and they started off their 100 mile day with a 60-minute hour of power.
0:18.0	We're increasing their training volume by 400%, but we could hardly
0:23.1	overtrain these guys. I mean, occasionally we'd see a symptom here or there. It's perhaps bold
0:33.1	to say, but I've said it over and over, that the environment that the individual and the muscle
0:38.5	recovers in, quite possibly is more important than fine-tuning the food choices that you consume
0:46.7	during that recovering window.
1:12.2	Music Hello and welcome to Sigma Nutrition Radio, the podcast that brings you evidence-based discussions with the world's leading researchers in fields related to nutrition and performance.
1:16.6	I am your host, Danny Lennon, and you are listening to Episode 124.
1:22.8	And today I'm absolutely pumped to have Brent Ruby from the University of Montana's Center for
1:29.4	Work Physiology and Exercise Metabolism on the show.
1:33.5	Brent is just such an awesome guy.
1:35.9	Not only is he in charge of a lab that is doing fascinating work as you're about to hear,
1:41.4	but he really tries to push the envelope in terms of asking interesting
1:45.3	research questions and thinking outside the box when it comes to study design.
1:50.8	And he's big on not only relying on nice, clean lab data that we get in very controlled, but
1:59.6	artificial settings, but artificial settings.
2:01.9	But also trying to attempt to see what happens when you take these same participants or athletes
2:07.6	and monitor them in various different environments, very similar to the ones they are actually
2:13.2	facing in competition, or maybe actually doing it during competition.
2:17.4	He's just a super interesting guy and quite brilliant at what he does. facing in competition or maybe actually doing it during competition.
2:22.8	He's just a super interesting guy and quite brilliant at what he does and just a really cool dude in general.
2:25.0	The show notes this episode are going to be at sigma nutrition.com slash episode 124.
	...

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