PMID- 23274601
OWN - NLM
STAT- MEDLINE
DCOM- 20140203
LR  - 20151119
IS  - 1530-0315 (Electronic)
IS  - 0195-9131 (Linking)
VI  - 45
IP  - 6
DP  - 2013 Jun
TI  - Postexercise cold-water immersion does not attenuate muscle glycogen resynthesis.
PG  - 1174-81
LID - 10.1249/MSS.0b013e3182814462 [doi]
AB  - PURPOSE: The aim of this study was to test the hypothesis that postexercise 
      cold-water immersion (CWI, via its associated reductions in skeletal muscle blood 
      flow) attenuates muscle glycogen resynthesis during short-term recovery from 
      exhaustive exercise. METHODS: In a repeated-measures design, nine recreationally 
      active men performed an exhaustive glycogen depleting cycling protocol 
      (consisting of intermittent exercise the night before and steady-state exercise 
      on the subsequent morning of the main trial) followed by 10 min of lower-limb CWI 
      (8 degrees C) or remained seated in normal ambient conditions (CONT). Subjects were fed 
      carbohydrate (CHO) at an ingestion rate of 0.6 g.kg body mass at 30 min 
      postexercise and at 1, 2, and 3 h postexercise. RESULTS: Reductions in thigh skin 
      temperature and muscle temperature during postexercise recovery were greater in 
      CWI compared with CONT (P < 0.01). In addition, norepinephrine and blood glucose 
      concentrations were increased and decreased, respectively, during recovery in CWI 
      compared with CONT (P < 0.01). Postexercise muscle glycogen (CONT and CWI 
      postexercise = 76 +/- 43 and 77 +/- 26 mmol.kg dry weight [dw], respectively; mean +/- 
      SD) progressively increased (P < 0.01) during recovery, although rates of 
      resynthesis did not differ (P = 0.719) between conditions (CONT and CWI 4 h 
      postexercise = 160 +/- 34 and 157 +/- 59 mmol.kg dw, respectively). Total glycogen 
      synthesis during recovery was comparable (CONT and CWI = 83 +/- 43 and 79 +/- 58 
      mmol.kg dw, respectively). CONCLUSIONS: Postexercise CWI does not attenuate 
      muscle glycogen resynthesis rates during short-term recovery even when CHO 
      availability is considered suboptimal. Athletes who regularly incorporate CWI as 
      a recovery strategy to alleviate symptoms of exercise-induced muscle damage 
      should therefore not be concerned with potential negative effects of the 
      associated reductions in muscle blood flow on the restoration of muscle glycogen 
      stores.
FAU - Gregson, Warren
AU  - Gregson W
AD  - Research Institute for Sport and Exercise Sciences, Liverpool John Moores 
      University, Liverpool, United Kingdom. W.Gregson@ljmu.ac.uk
FAU - Allan, Robert
AU  - Allan R
FAU - Holden, Susan
AU  - Holden S
FAU - Phibbs, Padraic
AU  - Phibbs P
FAU - Doran, Dominic
AU  - Doran D
FAU - Campbell, Iain
AU  - Campbell I
FAU - Waldron, Sarah
AU  - Waldron S
FAU - Joo, Chang Hwa
AU  - Joo CH
FAU - Morton, James P
AU  - Morton JP
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Med Sci Sports Exerc
JT  - Medicine and science in sports and exercise
JID - 8005433
RN  - 0 (Biomarkers)
RN  - 9005-79-2 (Glycogen)
SB  - IM
MH  - Adult
MH  - *Baths
MH  - Bicycling/*physiology
MH  - Biomarkers/metabolism
MH  - Body Temperature
MH  - *Cold Temperature
MH  - Cross-Over Studies
MH  - Exercise/*physiology
MH  - Glycogen/*biosynthesis
MH  - Healthy Volunteers
MH  - Humans
MH  - Male
MH  - Muscle, Skeletal/blood supply/*metabolism
MH  - Thigh
MH  - Young Adult
EDAT- 2013/01/01 06:00
MHDA- 2014/02/04 06:00
CRDT- 2013/01/01 06:00
PHST- 2013/01/01 06:00 [entrez]
PHST- 2013/01/01 06:00 [pubmed]
PHST- 2014/02/04 06:00 [medline]
AID - 10.1249/MSS.0b013e3182814462 [doi]
PST - ppublish
SO  - Med Sci Sports Exerc. 2013 Jun;45(6):1174-81. doi: 10.1249/MSS.0b013e3182814462.