|
תזונה ותוספים מה לאכול, מתי ולמה, תפריטים,אילו תוספי מזון מתאימים ועוד.. |
|
הגדרות אשכול | אפשרויות הצגת נושא |
![]() |
#16 | |
IsraelBody VIP - חבר יהלום
|
![]() ציטוט:
הנה *** Med Sci Sports Exerc. 2008 May;40(5):903-912.Links Increased Carbohydrate Oxidation after Ingesting Carbohydrate with Added Protein. Betts JA, Williams C, Boobis L, Tsintzas K. 1Sport and Exercise Science, University of Bath, Bath, UNITED KINGDOM; 2School of Sport and Exercise Sciences, Loughborough University, UNITED KINGDOM; 3Sunderland Royal Hospital, UNITED KINGDOM; and 4School of Biomedical Sciences, Queen's Medical Centre, Nottingham, UNITED KINGDOM. PURPOSE:: To examine the metabolic impact of including protein in a postexercise carbohydrate supplement when ingested between two bouts of prolonged running performed within the same day. METHODS:: Six healthy men participated in two trials separated by 14 d, each involving a 90-min treadmill run at 70% V O2max followed by 4 h of recovery and a subsequent 60-min run at the same intensity. At 30-min intervals during recovery, participants ingested either a solution containing 0.8 g.kg.h of carbohydrate (CHO) or the same solution plus an additional 0.3 g.kg.h of whey protein isolate (CHO-PRO). Muscle biopsies were obtained from the vastus lateralis at the beginning and end of the recovery period, with a third muscle biopsy taken following the second treadmill run. RESULTS:: Despite higher insulinemic responses to the CHO-PRO solution than to the CHO solution (P < 0.05), rates of muscle glycogen resynthesis during recovery were not different between treatments (CHO = 12.3 +/- 2.2 and CHO-PRO = 12.1 +/- 2.7 mmol glucosyl units per kilogram of dry mass per hour). Furthermore, there were no differences between treatments in muscle glycogen degradation during subsequent exercise (CHO = 2.2 +/- 0.3 and CHO-PRO = 2.0 +/- 0.1 mmol glucosyl units per kilogram of dry mass per minute). In contrast, whole-body carbohydrate oxidation during the second run was significantly greater with the CHO-PRO treatment than with the CHO treatment (48.4 +/- 2.2 and 41.7 +/- 2.6 mg.kg.min, respectively; P < 0.01). CONCLUSION:: These data show that the inclusion of protein in a carbohydrate-recovery supplement can increase the oxidation of extramuscular carbohydrate sources during subsequent exercise without altering the rate of muscle glycogen degradation.
__________________
And most importantly: Everytime you squat above parallel, Rip drowns a kitten in milk Patience + Persistence = Progress. (Bill Starr, The Strongest Shall Survive) ![]() |
|
![]() |
![]() |