Limits...
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.


Related in: MedlinePlus

Serum lactate concentration during AMex and PMex. 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. Serum lactate concentration decreased at each time point from AM15 to PM15 (p ≤ 0.05) but there were no other differences over time or between conditions.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2626573&req=5

Figure 4: Serum lactate concentration during AMex and PMex. 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. Serum lactate concentration decreased at each time point from AM15 to PM15 (p ≤ 0.05) but there were no other differences over time or between conditions.

Mentions: There was a significant time effect with serum glucose concentration decreasing from AM45 to PM15 in both groups (Fig 3). Similarly, there was a significant time effect for serum lactate, with both groups decreasing from AM15 to PM 15 (Fig 4). Planned comparisons of AM15 vs AM45 and PM15 vs PM45 (2 × 2 ANOVA) revealed no group, time or interaction effects.


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)

Serum lactate concentration during AMex and PMex. 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. Serum lactate concentration decreased at each time point from AM15 to PM15 (p ≤ 0.05) but there were no other differences over time or between conditions.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 4: Serum lactate concentration during AMex and PMex. 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. Serum lactate concentration decreased at each time point from AM15 to PM15 (p ≤ 0.05) but there were no other differences over time or between conditions.
Mentions: There was a significant time effect with serum glucose concentration decreasing from AM45 to PM15 in both groups (Fig 3). Similarly, there was a significant time effect for serum lactate, with both groups decreasing from AM15 to PM 15 (Fig 4). Planned comparisons of AM15 vs AM45 and PM15 vs PM45 (2 × 2 ANOVA) revealed no group, time or interaction effects.

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.


Related in: MedlinePlus