PMID- 27930452
OWN - NLM
STAT- MEDLINE
DCOM- 20180312
LR  - 20181202
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 31
IP  - 9
DP  - 2017 Sep
TI  - Shorter Duration Time Trial Performance and Recovery Is Not Improved by Inclusion 
      of Protein in a Multiple Carbohydrate Supplement.
PG  - 2509-2518
LID - 10.1519/JSC.0000000000001733 [doi]
AB  - Wolfe, AS, Brandt, SA, Krause, IA, Mavison, RW, Aponte, JA, and Ferguson-Stegall, 
      LM. Shorter duration time trial performance and recovery is not improved by 
      inclusion of protein in a multiple carbohydrate supplement. J Strength Cond Res 
      31(9): 2509-2518, 2017-Ingesting multiple carbohydrate (CHO) types during 
      exercise can improve endurance performance compared with single CHO only. Adding 
      protein to a multiple CHO beverage has been shown to increase cycling time to 
      exhaustion (TTE) compared with a single CHO beverage. However, it is unclear if 
      improvements were due to multiple CHO or protein, and TTE protocols are not 
      representative of typical race events. This study investigated whether adding 
      protein to a multiple CHO beverage improved performance and recovery in 2 
      same-day cycling time trials (TTs) compared with isocaloric multiple CHO only. 
      Ten cyclists (37.4 +/- 8.9 years; V[Combining Dot Above]O2max 54.6 +/- 6.5 ml.kg.min) 
      performed a familiarization and 2 randomized, crossover, double-blinded 
      experimental trials consisting of pretrial leg strength testing, 40-km TT, 30-min 
      recovery, 10-km TT, and posttrial leg strength testing. Seven 275 ml doses of 
      multiple CHO (MCO) or multiple CHO+protein (MCP) were ingested during the 
      protocol. Blood glucose, lactate, heart rate (HR), and rating of perceived 
      exertion (RPE) were also measured. Continuous variables were analyzed with paired 
      t-tests, and repeated measures with repeated-measures analysis of variance. No 
      differences existed between MCO and MCP in 40-km TT time (81.6 +/- 2.8 vs. 81.9 +/- 
      2.9 minutes, respectively, p = 0.94), or in 10-km time (24.0 +/- 0.9 vs. 23.9 +/- 1.0 
      minutes, p = 0.97). Blood glucose was higher before 10-km TT in MCO compared with 
      MCP (3.78 +/- 0.20 vs. 3.31 +/- 0.19 mmol.L, p = 0.002). No treatment differences 
      were found for lactate, HR, RPE, or strength recovery. When using a protocol and 
      performance measures that replicate realistic, shorter duration events, adding 
      protein to a multiple CHO beverage does not improve performance compared with 
      multiple CHO only.
FAU - Wolfe, Anthony S
AU  - Wolfe AS
AD  - 1Department of Biology, Integrative Physiology Laboratory, Hamline University, 
      Saint Paul, Minnesota; and 2Department of Biology, North Hennepin Community 
      College, Brooklyn Park, Minnesota.
FAU - Brandt, Sallee A
AU  - Brandt SA
FAU - Krause, Isaac A
AU  - Krause IA
FAU - Mavison, Rachel W
AU  - Mavison RW
FAU - Aponte, Josh A
AU  - Aponte JA
FAU - Ferguson-Stegall, Lisa M
AU  - Ferguson-Stegall LM
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
RN  - 0 (Blood Glucose)
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Dietary Proteins)
RN  - 33X04XA5AT (Lactic Acid)
SB  - IM
MH  - Adult
MH  - Beverages
MH  - Bicycling/*physiology
MH  - Blood Glucose/metabolism
MH  - Cross-Over Studies
MH  - Dietary Carbohydrates/*administration & dosage/metabolism
MH  - Dietary Proteins/*administration & dosage
MH  - Double-Blind Method
MH  - Female
MH  - Heart Rate
MH  - Humans
MH  - Lactic Acid/blood
MH  - Male
MH  - Middle Aged
MH  - Oxygen Consumption
MH  - Physical Endurance/*physiology
MH  - Time Factors
EDAT- 2016/12/09 06:00
MHDA- 2018/03/13 06:00
CRDT- 2016/12/09 06:00
PHST- 2016/12/09 06:00 [pubmed]
PHST- 2018/03/13 06:00 [medline]
PHST- 2016/12/09 06:00 [entrez]
AID - 10.1519/JSC.0000000000001733 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2017 Sep;31(9):2509-2518. doi: 10.1519/JSC.0000000000001733.