PMID- 34453013
OWN - NLM
STAT- MEDLINE
DCOM- 20220217
LR  - 20220225
IS  - 1543-2742 (Electronic)
IS  - 1526-484X (Linking)
VI  - 31
IP  - 6
DP  - 2021 Nov 1
TI  - Carbohydrate and Protein Co-Ingestion Postexercise Does Not Improve Next-Day 
      Performance in Trained Cyclists.
PG  - 466-474
LID - ijsnem.2021-0069 [pii]
LID - 10.1123/ijsnem.2021-0069 [doi]
AB  - Supplementing postexercise carbohydrate (CHO) intake with protein has been 
      suggested to enhance recovery from endurance exercise. The aim of this study was 
      to investigate whether adding protein to the recovery drink can improve 24-hr 
      recovery when CHO intake is suboptimal. In a double-blind crossover design, 12 
      trained men performed three 2-day trials consisting of constant-load exercise to 
      reduce glycogen on Day 1, followed by ingestion of a CHO drink (1.2 g.kg-1.2 
      hr-1) either without or with added whey protein concentrate (CHO + PRO) or whey 
      protein hydrolysate (CHO + PROH) (0.3 g.kg-1.2 hr-1). Arterialized blood glucose 
      and insulin responses were analyzed for 2 hr postingestion. Time-trial 
      performance was measured the next day after another bout of glycogen-reducing 
      exercise. The 30-min time-trial performance did not differ between the three 
      trials (M +/- SD, 401 +/- 75, 411 +/- 80, 404 +/- 58 kJ in CHO, CHO + PRO, and CHO + 
      PROH, respectively, p = .83). No significant differences were found in glucose 
      disposal (area under the curve [AUC]) between the postexercise conditions (364 +/- 
      107, 341 +/- 76, and 330 +/- 147, mmol.L-1.2 hr-1, respectively). Insulin AUC was 
      lower in CHO (18.1 +/- 7.7 nmol.L-1.2 hr-1) compared with CHO + PRO and CHO + PROH 
      (24.6 +/- 12.4 vs. 24.5 +/- 10.6, p = .036 and .015). No difference in insulin AUC 
      was found between CHO + PRO and CHO + PROH. Despite a higher acute insulin 
      response, adding protein to a CHO-based recovery drink after a prolonged, 
      high-intensity exercise bout did not change next-day exercise capacity when 
      overall 24-hr macronutrient and caloric intake was controlled.
FAU - Kontro, Hilkka
AU  - Kontro H
AUID- ORCID: 0000-0001-6999-3096
AD  - Food for Health Ireland.
AD  - University of Limerick.
AD  - University of Calgary.
FAU - Kozior, Marta
AU  - Kozior M
AUID- ORCID: 0000-0003-0945-7560
AD  - Food for Health Ireland.
AD  - University of Limerick.
FAU - Whelehan, Grainne
AU  - Whelehan G
AUID- ORCID: 0000-0003-1391-4349
AD  - Food for Health Ireland.
AD  - University of Limerick.
FAU - Amigo-Benavent, Miryam
AU  - Amigo-Benavent M
AUID- ORCID: 0000-0002-5376-9708
AD  - Food for Health Ireland.
AD  - University of Limerick.
FAU - Norton, Catherine
AU  - Norton C
AUID- ORCID: 0000-0001-8973-6759
AD  - Food for Health Ireland.
AD  - University of Limerick.
FAU - Carson, Brian P
AU  - Carson BP
AUID- ORCID: 0000-0001-8350-1481
AD  - Food for Health Ireland.
AD  - University of Limerick.
FAU - Jakeman, Phil
AU  - Jakeman P
AUID- ORCID: 0000-0002-1199-080X
AD  - Food for Health Ireland.
AD  - University of Limerick.
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
DEP - 20210827
PL  - United States
TA  - Int J Sport Nutr Exerc Metab
JT  - International journal of sport nutrition and exercise metabolism
JID - 100939812
RN  - 0 (Blood Glucose)
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Insulin)
RN  - 9005-79-2 (Glycogen)
SB  - IM
MH  - Blood Glucose
MH  - *Dietary Carbohydrates
MH  - Double-Blind Method
MH  - Eating
MH  - Exercise
MH  - Glycogen
MH  - Humans
MH  - Insulin
MH  - Male
MH  - *Muscle, Skeletal
MH  - Physical Endurance
OTO - NOTNLM
OT  - endurance
OT  - glycogen
OT  - recovery
EDAT- 2021/08/29 06:00
MHDA- 2022/02/19 06:00
CRDT- 2021/08/28 05:32
PHST- 2021/03/11 00:00 [received]
PHST- 2021/06/24 00:00 [revised]
PHST- 2021/06/28 00:00 [accepted]
PHST- 2021/08/29 06:00 [pubmed]
PHST- 2022/02/19 06:00 [medline]
PHST- 2021/08/28 05:32 [entrez]
AID - ijsnem.2021-0069 [pii]
AID - 10.1123/ijsnem.2021-0069 [doi]
PST - ppublish
SO  - Int J Sport Nutr Exerc Metab. 2021 Nov 1;31(6):466-474. doi: 
      10.1123/ijsnem.2021-0069. Epub 2021 Aug 27.