#244: Ian Dunican, PhD – Sleep & Impact of Weight Cutting

Sigma Nutrition Radio

Danny Lennon

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

4.8 • 626 Ratings

🗓️ 11 September 2018

⏱️ 45 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Book: 'Making Weight' - The Ultimate Science Based Guide to Cutting Weight for Combat Sports

Ian is currently the Director and Principal Consultant of Melius Consulting and has a PhD from the University of Western Australia (UWA), where he worked with elite sporting organisations/athletes to optimise sleep, recovery and performance. He is also the Director of Sleep4Performance and an Adjunct Researcher at Monash University, Australia.

Ian has worked with elite and highly trained athletes at the Australian Institute of Sport (AIS), West Australian Institute of Sport (WAIS), professional teams in Super Rugby, Australian Rules Football, Basketball, Swimming, Ultrarunners and Martial Arts such as Boxing, & MMA.

He is an ultrarunner, completing over 20 ultramarathons to date including the Ultra Trail Australia ~100km (7 times), Leadville~100 miler, numerous other marathons and trail running events. He is a Brazilian Jiu Jitsu Purple belt and enjoys cross training in wrestling, Mixed Martial Arts (MMA) and kettlebells. He is now focusing on improving his swimming to undertake open water swimming events in 2018/19.

He was a TEDx Perth speaker in 2017. He has co-authored technical reports, guidelines for industry organisations and authored a number of scientific articles and is a regular reviewer for scientific peer reviewed journals. Ian is the host of Sleep4Performance radio a podcast dedicated to education, knowledge sharing and promotion of the value of managing sleep.

In This Episode We Discuss

Weight cutting study: impact on sleep
Does low fibre dieting lead to worse sleep?
Effects of caloric restriction on sleep
Impact of anxiety and nervousness on week of competition
Brain trauma and sleep
Demands for sleep with increased training workload
Impact of late night training

Transcript

Click on a timestamp to play from that location

0:00.0	You know, we found in general population, if I'm one in five people who have a sleep disorder, we found the athletic population is one in three.
0:19.0	So does any of these athletes have that sleep disorder?
0:22.1	Is that being exacerbated during the week of a fight and during the wake up as well? Also, you mentioned
0:27.7	about cortisol. When cortisol is high, this inhibits melatonin, which is, you know, important for sleep.
0:33.7	So you have this kind of inverse relationship with those. But then athletes are using electronic devices, expose themselves to bright lights,
0:41.2	inhibiting the release of melatonin.
0:42.9	All these other factors are not planning to how they feel. Hello and welcome to another episode of Sigma Nutrition Radio.
1:05.8	We are at episode 244 of the podcast today.
1:10.5	And as always, I am your host, Danny Lennon. Thank you so much for
1:14.4	taking the time out to listen in to the show again. And today I have a returning guest,
1:19.8	Dr. Ian Dunnickin, who has previously been on the show quite a while back talking about
1:25.3	the impact of sleep in athletic performance and today we're
1:29.1	going to revisit some newer ideas that have came out of his work in more recent times especially
1:35.0	in the context of how that may impact a combat sport athlete leading up to competition especially
1:42.8	when they're making weight and the impact of a weight
1:45.6	cut on sleep and vice versa. And that will obviously play into many other athletes as well. And lots
1:51.9	of gems in there, even if your specific interest isn't in combat sports, just if you have an
1:57.7	appreciation for sleep, athletic performance training.
2:01.3	There's lots of really good stuff in here.
2:03.3	So please listen with an open mind.
2:06.1	Before I get into our interview, I just want to make one little announcement.
2:11.7	As many of you may have heard already, and if not, then you're in for some good news,
	...

Please login to see the full transcript.

Previous episode | Next episode

Disclaimer: The podcast and artwork embedded on this page are from Danny Lennon, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Danny Lennon and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.