Keith A. Prior
Wow!
Now a famous Phd chimes in!
Did lill' ol' me really cause all this? :)
-K
-----Original Message-----
From: obra-bounces@list.obra.org [mailto:obra-bounces@list.obra.org]On
Behalf Of Jeff Tedder & Shari
Sent: Tuesday, June 19, 2007 10:42 AM
To: obra@list.obra.org
Subject: [OBRA Chat] Fw: Protein Supplementation
Good morning everyone,
This may bore some of you to tears but here is a response I got back that I
wanted to share from Dr. Bill Misner from Hammer Nutrition on the protein
talk.....I emailed him about this topic so he could share his years of
knowledge as a doctor and elite national & world age group record holder of
many cycling and running records....
He has done most of the research and development of Hammer Nutrition
products since the late 80's....Happy reading....any questions let me
know.....
Jeff Tedder
Hammer Nutrition Products
Solid Core Training
503-246-2388
cell 503-473-7650
-
From: "Dr. Bill Misner Ph.D." To: "Jeff Tedder & Shari"
Cc: "A Brian Frank" <"a Steve Born" <
Sent: Tuesday, June 19, 2007 10:21 AM
Subject: Re: Fw: [OBRA Chat] Protein Supplementation
> Hello Jeff,
> My reply to your group discussion here follows:
>
> I agree with Louise Burke's numerical estimate for volume protein required
> to support muscle mass nitrogen balances. However, timing small amounts of
> dietary protein with large amounts of carboyhdrate during lean muscle mass
> cannibalization for high energy demand exercise sessions accelerates the
> process of muscle mass recovery and post-exercise stress growth patterns.
>
> In the late 1980's we began tested energy drinks during prolonged exercise
> (6-24 hours) consuming either a 100% carbohydrate solution or a 7:1 ratio
> of carboydrate to protein solution. These field tests concluded that a
> protein-enhanced carbohydrate solution produced less muscle soreness and
> faster recovery following exercise. Many of us also performed
> significantly better using the protein-enhanced carbohydrate drink. Were
> our observations simply anecdotal?
>
> Complete dietary protein repletion of exercise-cannibalized lean muscle
> mass can require from 3-7 days following exhaustive exercise. The
> maintenance of nitrogen balance depends on both protein and energy intake.
> Nitrogen balance is very sensitive to energy intake and energy expense
> (February 1996 EUR J CLIN NUTR).
> Several papers show an advantage for protein replacement with carboydrate
> both during and after exercise:
>
> 1. Levenhagen's hallmark paper (2001) demonstrated the importance of
> protein in a post workout meal. This publish document references
> support the hypothesis that protein and glycogen resynthesis are
> synergistic immediately following exercise. Tipton (2001), Roy
> (1998), and van Loon (2000) also wrote supportive data.
> 2. Ivy and his colleagues at the University of Texas (2003) further
> demonstrated that protein potentiates the restorage of
> carbohydrate to glycogen stores and positively effects performance
> at various intensity and duration. 3. Mero (1999) wrote: "Consumption
> of BCAA (30-35% leucine) before or
> during endurance exercise may prevent or decrease the net rate of
> protein degradation, may improve both mental and physical
> performance and may have a sparing effect on muscle glycogen
> degradation and depletion of muscle glycogen stores." 4. MacLean et
> al.(1996) concluded that: (1) Administration of BCAAs
> can greatly increase their concentration in plasma and
> subsequently their uptake by muscle during exercise; (2) Long-term
> exercise following BCAA administration results in significantly
> greater muscle NH3, alanine and glutamine production, as well as
> lower lactate production, than is observed during exercise without
> BCAA supplementation.
>
> There are sportscientists who argue against Ivy, Maclean, and Mero's
> position and have shown data that demonstrates the limits to adding
> protein to carbohydrates for consumption during endurance exercise. In my
> opinion, protein-enhanced carbohydrate solutions are ideal for events
> lasting 3 hours or longer. When amino acids are cannibalized into the
> energy cycle at the rate of 5-15% of the required caloric expense, the
> athlete who consumes a protein-enhanced carbohydrate solution during
> exercise may gain some benefit in performance or increased rate of
> recovery. If an athlete is competing in an event lasting less than
> 3-hours, the need to consume a protein-enhanced carbohydrate solution is
> far less, assuming that the athlete consumes protein-enhanced carbohydrate
> meal immediately after exercise. This answer to this query is best
> approached by replacing substrates depleted as soon as possible.
> Typically, an adequate replacement of protein, carboydrate, fat calories
> spent will not impose muscle mass wasting in the most exhausted endurance
> training subject. It is a case of getting a balance of calories into the
> system as soon as permissible.
>
> (References are cited below)
>
> Best wishes and kindest regards,
>
> Dr. Bill Misner, Ph.D.
> AAMA Board Certified Alternative Medicine Practitioner
> Director (Emeritus) Research & Product Development
> Hammer Nutrition, Whitefish, Montana USA (800) 336-1977
> http://www.hammernutrition.com/za/HNT?PAGE=KNOWLEDGE
>
> References
>
> Energy and Protein requirements, Proceedings of an IDECG workshop
> Volume 50, Supplement 1, February 1996 EUR J CLIN NUTR, Volume 50,
> Supplement 1, February 1996 @:
> http://www.unu.edu/unupress/food2/UID01E/uid01e00.htm#Contents
>
> Energy and Protein requirements, Proceedings of an IDECG workshop
> Volume 50, Supplement 1, February 1996 EUR J CLIN NUTR, Volume 50,
> Supplement 1, February 1996 @:
>
>
http://www.unu.edu/unupress/food2/UID01E/uid01e1v.htm#12.%20effect%20of%20pr
oteinamino%20acid%20intake%20on%20protein%20synthesis%20and%20breakdown
>
> Levenhagen et al. (2001). Postexercise nutrient intake timing in
> humans is critical to recovery of leg glucose and protein
> homeostasis. Am.J.Physiol Endocrinol.Metab. 280(6): E982-993.
>
> Ivy JL, Res PR, Sprague RC, Widzer MO. Effect of a
> carbohydrate-protein supplement on endurance performance during
> exercise of varying intensity. International Journal of Sports
> Nutrition and Exercise Metabolism 2003, 13:388-401.
>
> Mero A. Leucine supplementation and intensive training. Sports Med.
> 1999 Jun;27(6):347-58. Review.
>
> MacLean DA, Graham TE, Saltin B. Stimulation of muscle ammonia
> production during exercise following branched-chain amino acid
> supplementation in humans. J Physiol. 1996 Jun 15;493 (Pt 3):909-22.
>
> Tipton et al. (2001). Timing of amino acid-carbohydrate ingestion
> alters anabolic response of muscle to resistance exercise.
> Am.J.Physiol Endocrinol.Metab. 281(2): E197-206.
>
> Roy et al. (1998). Influence of differing macronutrient intakes on
> muscle glycogen resynthesis after resistance exercise. JAP. 84(3):
> 890-896.
>
> Van Loon et al. (2000a). Maximizing postexercise muscle glycogen
> synthesis: carbohydrate supplementation and the application of amino
> acid or protein hydrolysate mixtures. Am J Clin Nutrition. 72(1):
> 106-111.
>
> Van Loon et al. (2000b). Ingestion of protein hydrolysate and amino
> acid-carbohydrate mixtures increases postexercise plasma insulin
> responses in men. J Van Loon et al. (2000b). Ingestion of protein
> hydrolysate and amino acid-carbohydrate mixtures increases
> postexercise plasma insulin responses in men. J Nutr. 130(10):
> 2508-2513.
_______________________________________________
OBRA mailing list
obra@list.obra.org
http://list.obra.org/mailman/listinfo/obra
Unsubscribe: obra-unsubscribe@list.obra.org