Omega3

S3E35: Seasonal Changes in Hormone & Nutrient Biomarkers in College Soccer w Dr. Alan Walker, PhD

Season 3, Episode 35

Dr. Bubbs interviews Dr. Alan Walker PhD whose research is focused on the effects energy expenditure and workload have on biomarkers in athletes.

Summary of Episode

4:00 – Dr. Walker’s background in exercise and nutrition

7:45 – How do biomarkers inform athlete stress over 24-hours?

10:30 – Specificity vs. sensitivity with lab testing

11:30 – Alan’s work in seasonal long biomarker testing in elite female soccer players

13:00 – The collegiate pre-season & impacts on athlete readiness

14:00 – How iron status was impacted throughout the season

15:30 – IL-6, hepcidin and iron regulation

16:30 – The ‘delayed effect’ of biomarker assessment

17:30 – Biomarkers – The “Other-22 Hours” in the day

20:00 – The value of education and transparency in applying performance nutrition in practice

23:00 – ‘Big Rocks’ for athlete to support performance and recovery - Suggestions for


About Dr. Alan Walker, PhD, CSCS

Dr. Alan Walker received his BS from Salisbury University (’12), his MS from Rutgers University (’14), his Ph.D. from Rutgers University (’19), and earned his CSCS in 2016 with distinction in 2017. Alan is current an Assistant Professor of Exercise Science at Lebanon Valley College in Pennsylvania. Alans’s research primarily focuses on sport science and implementing ways to maximize athlete health and performance. He has experience working with sports such as soccer, lacrosse, field hockey, swimming and diving, hockey, and boxing at the youth, collegiate, and professional level.


Links:

Biomarker Response to a Competitive Season in Division I Female Soccer Players

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S3E17: Fat-Free Mass Index & Key Micronutrients in Pro Football Players w/ Dr. Eric Trexler PhD

Season 3, Episode 17

Dr. Bubbs interviews Dr. Eric Trexler PhD, professional natural bodybuilder, exercise and nutrition researcher and education director at Stronger By Science. In this episode, Eric talks differences in body composition in pro football, how it changes by position and over a season. Eric also highlights a lesser known but valuable metric of fat-free mass index (FFMI) and general targets for specific positions, as well as associations to performance. He then shares his work on omega-3, vitamin-D and body composition in NFL players, the unfortunate reality of post-career health in pro football players and tips to keep ex-athletes healthy as they age.

Summary of This Episode

2:30 – Cardinal rule of training

3:45 – Is it necessary to use loads greater than 85% to increase strength?

6:45 – Russian vs. Western training prescription

8:00 – Importance of starting light for beginners and experts

9:15 – Intense loads and elite training environments – too much of a good thing?

10:00 – Wave loading and ideal progression strategies

18:25 – What is autoregulation? How it can impact training progression

21:15 – Moving sub-maximal vs. maximal weights fast – which is best?

24:20 – Importance of technical skill in coaching

About Dr. Eric Trexler PhD

Dr. Eric Trexler PhD is a strength coach, professional natural bodybuilder, and the Director of Education for Stronger By Science. As an exercise & nutrition researcher, Eric has published over 30 peer-reviewed papers on a variety of topics related to body composition and performance. Follow Eric on Twitter @EricTrexler and on Instagram @TrexlerFitness.

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S3E1: Vitamin D & Athletes - Impacts on Immunity and Exercise-Induced Muscle Damage w Dr. Daniel Owens PhD

Season 3 Episode 1

Dr. Bubbs kicks off the year talking vitamin D, performance and which supplements can impact exercise-induced muscle damage with expert Dr. Daniel Owens PhD. In this episode, Daniel reviews the history of vitamin D research, how vitamin D may impact athletic performance, variations in vitamin D status amongst athletes and different ethnicities, as well as suggestions for testing and supplementation. Dan also discusses his work on exercise-induced muscular damage, reviewing the physiology of recovery and how certain functional foods can impact various stages of the recovery process.

Summary Of Episode

1:30 – Brief history of vitamin D

8:45 – How may vitamin D impact athletic performance

15:45 – Vitamin D variation between athletes

19:50 – Ethnicity and vitamin D status

24:15 – Mega-dosing with vitamin D supplements

30:30 – Exercise-induced muscle damage (EIMD) and biomarkers

32:00 – Cherry juice, polyphenols and EIMD

35:45 – Omega-3 fats and EMID

44:00 – Evolution of research on vitamin D and athletic performance


About Dr. Daniel Owens PhD

Dr. Dan Pardi PhD is a lecturer in cellular and molecular sport and exercise science at Liverpool John Moores University, a sport nutrition consultant to the Warrington Wolves professional rugby league club, and former performance nutritionist for England Rugby Football Union (the RFA).

Follow Dan on Twitter  @Dan_Owie.


Links to Research Papers

Efficacy of High Dose Vitamin D Supplements for Elite Athletes

Exercise-induced muscle damage: what is it, what causes it and what are the nutritional solutions? 


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