PMID- 33301383
OWN - NLM
STAT- MEDLINE
DCOM- 20211129
LR  - 20211129
IS  - 1715-5320 (Electronic)
IS  - 1715-5312 (Linking)
VI  - 46
IP  - 6
DP  - 2021 Jun
TI  - The metabolic and performance effects of carbohydrate timing in resistance 
      trained males undergoing a carbohydrate restricted diet.
PG  - 626-636
LID - 10.1139/apnm-2020-0830 [doi]
AB  - The purpose of this investigation was to examine the importance of carbohydrate 
      (CHO) timing while consuming a carbohydrate restricted diet (CRD) and completing 
      a high-intensity exercise program. Eighteen males completed 6 weeks of training 
      with the first 2 weeks serving as familiarization. During the final 4 weeks, 
      subjects were randomized into 2 groups and completed 3 days of resistance 
      training and 2 days of high-intensity interval training, while consuming a CRD 
      ( approximately 25%,  approximately 25%, and  approximately 50%, CHO, protein, and fat, respectively). The supplemented 
      group (n = 9) ingested 30 g of CHO during exercise and 40 g of CHO immediately 
      after each training session. The non-supplemented group (n = 9) consumed a 
      non-caloric placebo during exercise. Pre- and post-testing measures included back 
      squat and bench press 1-repetition maximums (1-RM), peak oxygen consumption 
      (V̇O(2peak)), anaerobic power, body composition, fasted glucose, insulin, and 
      total testosterone. Both groups significantly improved back squat and bench press 
      1-RM, V̇O(2peak), and power output (p < 0.05), but there were no differences in 
      blood markers or body composition. Our data suggests that CHO timing does not 
      negatively impact training adaptations during a high-intensity exercise regimen 
      when dietary CHO intake is restricted, but that favorable adaptations can be made 
      while consuming a CRD. Novelty: Carbohydrate restricted dieting has no negative 
      impact on resistance training adaptations. Short-term high-intensity interval 
      training is effective in increasing peak oxygen consumption.
FAU - Krings, Ben M
AU  - Krings BM
AD  - Department of Health and Human Performance, University of Wisconsin- Platteville, 
      Platteville, Wisconsin, USA.
FAU - Waldman, Hunter S
AU  - Waldman HS
AD  - Department of Kinesiology, University of North Alabama, Florence, Alabama, USA.
FAU - Shepherd, Brandon D
AU  - Shepherd BD
AD  - Applied Physiology Laboratory, Department of Kinesiology, Mississippi State 
      University, Mississippi State, Mississippi, USA.
FAU - McAllister, Matthew J
AU  - McAllister MJ
AD  - Metabolic & Applied Physiology Lab, Department of Health and Human Performance, 
      Texas State University, San Marcos, Texas, USA.
FAU - Fountain, Brent J
AU  - Fountain BJ
AD  - Department of Food Science, Nutrition, and Health Promotion, Mississippi State 
      University, Mississippi State, Mississippi, USA.
FAU - Lamberth, John G
AU  - Lamberth JG
AD  - Applied Physiology Laboratory, Department of Kinesiology, Mississippi State 
      University, Mississippi State, Mississippi, USA.
FAU - Smith, JohnEric W
AU  - Smith JW
AD  - Applied Physiology Laboratory, Department of Kinesiology, Mississippi State 
      University, Mississippi State, Mississippi, USA.
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
DEP - 20201210
PL  - Canada
TA  - Appl Physiol Nutr Metab
JT  - Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition 
      et metabolisme
JID - 101264333
RN  - 0 (Biomarkers)
RN  - 0 (Blood Glucose)
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Insulin)
RN  - 3XMK78S47O (Testosterone)
SB  - IM
MH  - Adaptation, Physiological
MH  - Biomarkers/blood
MH  - Blood Glucose/metabolism
MH  - Body Composition
MH  - *Diet, Carbohydrate-Restricted
MH  - Dietary Carbohydrates/administration & dosage
MH  - *Energy Metabolism
MH  - Exercise Test
MH  - Humans
MH  - Insulin/blood
MH  - Male
MH  - Oxygen Consumption/physiology
MH  - *Resistance Training
MH  - Testosterone/blood
MH  - Young Adult
OTO - NOTNLM
OT  - aides ergogeniques
OT  - anaerobic exercise
OT  - cycling
OT  - cyclisme
OT  - entrainement en resistance
OT  - entrainement par intervalles a haute intensite
OT  - ergogenic aids
OT  - exercice anaerobie
OT  - high-intensity interval training
OT  - nutrition
OT  - resistance training
EDAT- 2020/12/11 06:00
MHDA- 2021/11/30 06:00
CRDT- 2020/12/10 17:10
PHST- 2020/12/11 06:00 [pubmed]
PHST- 2021/11/30 06:00 [medline]
PHST- 2020/12/10 17:10 [entrez]
AID - 10.1139/apnm-2020-0830 [doi]
PST - ppublish
SO  - Appl Physiol Nutr Metab. 2021 Jun;46(6):626-636. doi: 10.1139/apnm-2020-0830. 
      Epub 2020 Dec 10.