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Recovery from a cycling time trial is enhanced with carbohydrate-protein supplementation vs. isoenergetic carbohydrate supplementation.

Berardi JM, Noreen EE, Lemon PW - J Int Soc Sports Nutr (2008)

Bottom Line: However, performance and power decreases between PM(ex) and AM(ex) were significantly greater (p </= 0.05) with CHO (-1.05 +/- 0.44 km and -16.50 +/- 6.74 W) vs C+P (-0.30 +/- 0.50 km and -3.86 +/- 6.47 W).Fat oxidation estimated from RER values was significantly greater (p </= 0.05) in the C+P vs CHO during the PM(ex), despite a higher average workload in the C+P group.Under these experimental conditions, liquid C+P ingestion immediately after exercise increases fat oxidation, increases recovery, and improves subsequent same day, 60 min efforts relative to isoenergetic CHO ingestion.

View Article: PubMed Central - HTML - PubMed

Affiliation: Precision Nutrition, Inc, Toronto, Ontario, Canada. jb@johnberardi.com.

ABSTRACT

Background: In this study we assessed whether a liquid carbohydrate-protein (C+P) supplement (0.8 g/kg C; 0.4 g/kg P) ingested early during recovery from a cycling time trial could enhance a subsequent 60 min effort on the same day vs. an isoenergetic liquid carbohydrate (CHO) supplement (1.2 g/kg).

Methods: Two hours after a standardized breakfast, 15 trained male cyclists completed a time trial in which they cycled as far as they could in 60 min (AM(ex)) using a Computrainer indoor trainer. Following AM(ex), subjects ingested either C+P, or CHO at 10, 60 and 120 min, followed by a standardized meal at 4 h post exercise. At 6 h post AM(ex) subjects repeated the time trial (PM(ex)).

Results: There was a significant reduction in performance for both groups in PM(ex) versus AM(ex). However, performance and power decreases between PM(ex) and AM(ex) were significantly greater (p

Conclusion: Under these experimental conditions, liquid C+P ingestion immediately after exercise increases fat oxidation, increases recovery, and improves subsequent same day, 60 min efforts relative to isoenergetic CHO ingestion.

No MeSH data available.


Decrease in power output during a time trial (PMex) performed 6 h after an initial time trial (AMex). During the recovery period between AMex and PMex nutritional interventions included early post exercise carbohydrate + protein supplements (C+P) and a later solid meal and early carbohydrate supplement (CHO) and a later solid meal. *The decrease in power output in C+P is significantly less than in CHO (p ≤ 0.05).
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Figure 2: Decrease in power output during a time trial (PMex) performed 6 h after an initial time trial (AMex). During the recovery period between AMex and PMex nutritional interventions included early post exercise carbohydrate + protein supplements (C+P) and a later solid meal and early carbohydrate supplement (CHO) and a later solid meal. *The decrease in power output in C+P is significantly less than in CHO (p ≤ 0.05).

Mentions: Both groups performed significantly better in the AMex performance compared to the PMex performance, with no significant differences observed between the groups for the AMex ride. However, the reduction in distance traveled and power output during PMex (vs AMex) was significantly less in the C+P condition (-0.30 ± 0.19 km and -3.86 ± 2.44 W) relative to CHO (-1.05 ± 0.16 km and -16.50 ± 2.39 W; Fig 1 &2). Statistical power calculations indicate power factors of 0.835 for distance traveled and 0.965 for mean power output.


Recovery from a cycling time trial is enhanced with carbohydrate-protein supplementation vs. isoenergetic carbohydrate supplementation.

Berardi JM, Noreen EE, Lemon PW - J Int Soc Sports Nutr (2008)

Decrease in power output during a time trial (PMex) performed 6 h after an initial time trial (AMex). During the recovery period between AMex and PMex nutritional interventions included early post exercise carbohydrate + protein supplements (C+P) and a later solid meal and early carbohydrate supplement (CHO) and a later solid meal. *The decrease in power output in C+P is significantly less than in CHO (p ≤ 0.05).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2626573&req=5

Figure 2: Decrease in power output during a time trial (PMex) performed 6 h after an initial time trial (AMex). During the recovery period between AMex and PMex nutritional interventions included early post exercise carbohydrate + protein supplements (C+P) and a later solid meal and early carbohydrate supplement (CHO) and a later solid meal. *The decrease in power output in C+P is significantly less than in CHO (p ≤ 0.05).
Mentions: Both groups performed significantly better in the AMex performance compared to the PMex performance, with no significant differences observed between the groups for the AMex ride. However, the reduction in distance traveled and power output during PMex (vs AMex) was significantly less in the C+P condition (-0.30 ± 0.19 km and -3.86 ± 2.44 W) relative to CHO (-1.05 ± 0.16 km and -16.50 ± 2.39 W; Fig 1 &2). Statistical power calculations indicate power factors of 0.835 for distance traveled and 0.965 for mean power output.

Bottom Line: However, performance and power decreases between PM(ex) and AM(ex) were significantly greater (p </= 0.05) with CHO (-1.05 +/- 0.44 km and -16.50 +/- 6.74 W) vs C+P (-0.30 +/- 0.50 km and -3.86 +/- 6.47 W).Fat oxidation estimated from RER values was significantly greater (p </= 0.05) in the C+P vs CHO during the PM(ex), despite a higher average workload in the C+P group.Under these experimental conditions, liquid C+P ingestion immediately after exercise increases fat oxidation, increases recovery, and improves subsequent same day, 60 min efforts relative to isoenergetic CHO ingestion.

View Article: PubMed Central - HTML - PubMed

Affiliation: Precision Nutrition, Inc, Toronto, Ontario, Canada. jb@johnberardi.com.

ABSTRACT

Background: In this study we assessed whether a liquid carbohydrate-protein (C+P) supplement (0.8 g/kg C; 0.4 g/kg P) ingested early during recovery from a cycling time trial could enhance a subsequent 60 min effort on the same day vs. an isoenergetic liquid carbohydrate (CHO) supplement (1.2 g/kg).

Methods: Two hours after a standardized breakfast, 15 trained male cyclists completed a time trial in which they cycled as far as they could in 60 min (AM(ex)) using a Computrainer indoor trainer. Following AM(ex), subjects ingested either C+P, or CHO at 10, 60 and 120 min, followed by a standardized meal at 4 h post exercise. At 6 h post AM(ex) subjects repeated the time trial (PM(ex)).

Results: There was a significant reduction in performance for both groups in PM(ex) versus AM(ex). However, performance and power decreases between PM(ex) and AM(ex) were significantly greater (p

Conclusion: Under these experimental conditions, liquid C+P ingestion immediately after exercise increases fat oxidation, increases recovery, and improves subsequent same day, 60 min efforts relative to isoenergetic CHO ingestion.

No MeSH data available.