Equipe Enervit's Webinars | NUTRITION IN PRO CYCLING

Nutrition in Procycling: Insights from Elite Teams

Introduction to the Webinar

• Riccardo Pina introduces the Equipenabit webinar series, emphasizing its commitment to nutrition research and education since the 1970s.

• The webinars target nutrition specialists, sports performance experts, and both amateur and professional athletes seeking sustainable longevity.

Presentation Overview

• Gorka Prieto, head of nutrition for UAE Team Emirates XRG, will present on nutritional strategies used by elite cyclists during competitions and training.

• Simultaneous interpretation will be available in Spanish, Italian, and English for attendees.

Nutritional Strategies in Cycling

• Gorka Prieto discusses evidence-based methodologies for nutrition within a cycling team composed of elite athletes.

• Carbohydrates are crucial as they are stored as muscle glycogen, serving as an energy source (ATP generation) during exercise.

Types of Carbohydrates

• Various forms of carbohydrates (solid foods like pasta or rice; gels; isotonic drinks) are utilized to delay fatigue and enhance endurance performance.

• Recommended carbohydrate intake varies significantly among athletes—ranging from 30g to over 140g depending on individual needs and types consumed.

Transport Mechanisms for Carbohydrates

• Two key transporters (SGLT1 for glucose and GLUT5 for fructose) facilitate carbohydrate absorption in the gastrointestinal tract.

• Combining glucose with fructose allows higher carbohydrate consumption rates without causing gastrointestinal issues.

Gradual Adaptation to Carbohydrate Intake

• Athletes should gradually increase their carbohydrate intake rather than starting at high levels immediately to avoid digestive problems.

• Initial assessments showed that elite cyclists consume between 9–10 grams of carbohydrates per kilogram of body weight daily alongside significant protein (2+ grams/kg).

This structured summary provides a clear overview of the key points discussed in the webinar regarding nutritional strategies employed by professional cycling teams.

The Role of Carbohydrates in Athletic Performance

Benefits of Carbohydrate Consumption

• High carbohydrate intake positively impacts exercise duration and intensity, with 82% of studies showing performance improvement when carbohydrates are consumed during exercise.

• Carbohydrates serve as a direct energy source and help maintain muscle and liver glycogen levels, which is crucial for sustaining blood glucose levels.

• Effective carbohydrate oxidation is essential; high cortisol levels during strict diets can hinder recovery despite cortisol's role in promoting it.

Central Nervous System and Recovery

• Carbohydrates can enhance central nervous system function, even through simple mouth rinsing, leading to improved performance without limiting glycogen stores.

• Athletes utilize high carbohydrate levels for multiple benefits, emphasizing the importance of understanding these advantages in training regimens.

Misconceptions About Aggressive Dieting

• Some athletes adopt aggressive dieting strategies to promote fat burning or increase mitochondrial density, but this approach may not be beneficial.

• The belief that low glycogen diets enhance fat oxidation has been challenged; recent findings highlight the importance of glycogen in cellular signaling.

Training Strategies for Glycogen Management

• Traditional methods involved training with low glycogen by restricting carbohydrates before workouts to activate mitochondrial biogenesis and improve angiogenesis.

• Current practices include two training sessions per day without carbohydrate intake between them to start the second session with depleted glycogen stores.

Exploring Dietary Approaches

• Fasted training (skipping breakfast before workouts) aims to maximize body adaptation by promoting metabolic changes.

• The "sleep low, train low" model involves carbohydrate restriction post-training to encourage adaptations overnight before another workout without carbs.

Evaluating High-Fat Diet Effects

• High-fat diets may reduce key enzymes necessary for effective carbohydrate utilization during exercise, making them less suitable for elite athletes.

• The inefficiency of glucose oxidation on high-fat diets raises concerns about their effectiveness for both elite and amateur athletes engaged in regular aerobic training.

Achieving Metabolic Flexibility

• The goal is to train the body for metabolic flexibility—efficiently oxidizing fats at lower intensities while switching to carbohydrates at higher intensities as energy demands increase.

• This adaptability allows cyclists to utilize fats at low intensity while relying on carbohydrates during more intense efforts.

Adaptive Training and Gut Health

Importance of Gut Training

• Emphasizes the need for adaptive training that includes gut training sessions to enhance gut transporters while minimizing gut issues during athletic performance.

Strategies for Low Glycogen Training

• Discusses the use of caffeine and carbohydrate mouth rinsing as effective strategies to maintain performance levels during low glycogen training sessions.

Study on Carbohydrate Periodization

• Describes a study aimed at improving body and gut adaptations through controlled exercise with varying carbohydrate availability, highlighting the importance of dietary strategies in athletic training.

Performance Impact Analysis

• Outlines a comparison between two groups of cyclists: one following a periodized diet and another on a traditional high-carb diet, both receiving isocaloric intake but showing no significant performance differences.

Findings on Fat and Muscle Oxidation

• Reports that there were no improvements in fat oxidation or muscle mass changes between the two dietary groups despite similar caloric intake and exercise regimens, indicating that calorie management may be more crucial than carbohydrate manipulation.

Carbohydrate Intake Guidelines

Energy Expenditure Considerations

• Provides an example from Huerta in Spain detailing how carbohydrate intake should vary based on energy expenditure, race stage, and cyclist roles during competition.

Carbohydrate Consumption During Races

• Illustrates different carbohydrate consumption rates based on race conditions: 50-70 grams per hour for flat stages versus 100-130 grams per hour for mountainous races requiring higher energy output.

Training Schedule Example

Weekly Macronutrient Strategy

• Presents a structured weekly training plan used by the UAE team focusing on medium to high carbohydrate intakes tailored to specific workout intensities throughout the week.

Daily Breakdown:

• Monday: Moderate intensity cycling with medium carb intake (~60g/hour).

• Tuesday: High-intensity session emphasizing high carb consumption to support performance without gastrointestinal issues.

• Wednesday: Two sessions (cycling & gym), maintaining moderate carb levels due to lower intensity requirements.

Nutrition Strategies for Athletes

Understanding Body Composition and Caloric Needs

• The body composition of an athlete significantly influences caloric requirements, which vary based on individual goals and physical conditions.

• A moderate carbohydrate intake is recommended to promote fat burning without hindering recovery, especially during low-intensity training sessions.

• It's crucial to control calorie intake based on the athlete's body composition and weight to develop effective nutritional strategies tailored to each individual.

Importance of Monitoring Health Indicators

• Regular blood tests are essential for monitoring health indicators like anemia and ferritin levels, which can help prevent muscle injuries.

• Trainers must be vigilant about various markers that could indicate a higher risk of injuries, adjusting nutrition accordingly.

Utilizing Technology in Nutrition Assessment

• Ultrasonography can assess glycogen stores in muscles, helping determine if an athlete requires more carbohydrates before or after exercise.

• This technology allows coaches to evaluate glycogen replenishment post-exercise effectively.

Key Nutritional Rules for Athletes

Rule 1: Prioritize Carbohydrates

• Carbohydrates should be prioritized during high-intensity training; both glucose and fructose are necessary for optimal oxidation.

Rule 2: Caloric Control

• Maintaining caloric control is vital as it impacts body composition; timing of micronutrient intake also plays a significant role.

Rule 3: Energy Availability

• Understanding energy availability is critical; different strategies may apply depending on whether the athlete is a professional or amateur.

Rule 4: Avoid Aggressive Dieting

• Moderation in dietary strategies is important; overly aggressive approaches can be detrimental to recovery and performance.

Recovery Nutrition Insights

• Recovery nutrition is essential for muscle repair; understanding how nutrition affects sleep quality and energy repletion can enhance overall recovery.

Protein Requirements for Athletes

• Protein intake should range from 1.6 to 3 grams per kilogram of body weight, with higher needs observed in athletes expending large amounts of calories during competitions.

Post-exercise Recovery Strategies

• After exercise, providing a recovery shake containing 20–25 grams of protein aids in muscle regeneration and promotes effective recovery.

Hydration and Nutrition Strategies for Athletes

Importance of Hydration

• Hydration is crucial during exercise; athletes often use isotonic drinks with sodium to maintain hydration levels.

• Weight measurement before and after exercise helps determine fluid loss, guiding rehydration needs for optimal performance in subsequent activities.

Carbohydrate Intake Post-Exercise

• Consuming carbohydrates immediately after exercise is essential, with a recommended intake of 1 to 1.2 grams per kilogram of body weight.

• The goal is to promote glycogen re-synthesis, especially after intense stages where glycogen stores need proper redistribution.

Sleep Hygiene for Recovery

• Quality sleep is fundamental for athlete recovery; strategies include maintaining a comfortable room temperature and disconnecting from screens before bed.

• Taking a warm shower one to two hours prior to sleep can enhance sleep quality.

Nutritional Timing and Planning

• A structured nutritional plan includes meals prepared by cooks aimed at promoting glycogen replenishment within two to six hours post-exercise.

• An app assists in prescribing dietary needs based on stage profiles, roles, temperatures, and other factors affecting nutrition.

Adjustments During Races

• Athletes may have different preferences regarding meal timing; adjustments are made based on race developments or unforeseen events like falls.

• At the end of each stage, cyclists log their intake (gels, bars, drinks), allowing analysis of caloric deficits and necessary compensations in their diet.

Continuous Improvement Through Data Analysis

• The nutritional plan is dynamic; adjustments are made based on data analysis concerning calories burned versus consumed throughout the race.

• Recovery strategies are personalized using scientific evidence; this approach ensures that athletes optimize their performance over extended competitions like a Vuelta lasting 21 days.

Drinks and Nutrition Strategies in Racing

Overview of Drinks Used During Races

• The presentation discusses the types of drinks utilized during races, emphasizing their importance in athlete performance and recovery.

• A 2:1 ratio of glucose to fructose is highlighted as optimal for gastrointestinal tolerance, with various forms like gels and jellies being preferred by athletes.

• Breakfast is prepared by dedicated chefs before races, including options like bread, porridge, fruit, or eggs to ensure proper nutrition.

Pre-Race Nutrition Guidelines

• Specific snacks are provided pre-race based on stage profiles; options include two-to-one bars or protein bars to optimize carbohydrate intake (30-60 grams).

• Race fueling strategies dictate what athletes consume at each stop, ensuring they maintain energy levels throughout the race.

Post-Race Recovery Strategies

• After finishing a race, athletes consume solid food along with specific drinks containing varying amounts of carbohydrates (30g to 70g), often supplemented with electrolytes for hydration.

• Recovery formulas developed include maltodextrin and whey protein aimed at replenishing glycogen stores effectively post-race.

Importance of Cherry Extract in Recovery

• Magic cherry extract is introduced as an anti-inflammatory aid that helps reduce oxidative stress after races.

• Dr. Mondazzi will further elaborate on recovery aspects related to polyphenols found in cherry extracts that support both recovery and performance.

The Role of Polyphenols in Sports Nutrition

Benefits of Magic Cherry Extract

• Magic cherry contains polyphenols which have been scientifically linked to improved recovery and endurance performance.

• Unlike many products on the market, magic cherry does not contain added sugars or sweeteners, making it a healthier option for athletes.

Production Process and Quality Assurance

• The extraction process preserves the chemical properties without thermal treatment, ensuring higher quality retention compared to other methods.

Unique Characteristics of Vistula Cherries

• Vistula cherries from Poland are noted for their superior polyphenol content compared to Montmorency cherries grown elsewhere.

Comparative Analysis of Polyphenol Content

• Diagrams illustrate the significant differences in total polyphenol content between Vistula cherries and Montmorency cherries, highlighting Vistula's advantages.

Effects of Polyphenols on Muscle Recovery and Performance

Mechanisms of Action

• Polyphenols exhibit three primary effects: anti-inflammatory, antioxidant, and promotion of nitric oxide production, which is crucial in medicine.

Benefits of Tart Cherry Polyphenols

• Tart cherry polyphenols help limit exercise-induced muscle damage by reducing oxidative stress, thereby promoting muscle repair. This leads to improved recovery and performance in subsequent exercises.

• By mitigating secondary muscle damage caused by inflammation, tart cherries enhance the integrity of muscle fibers post-exercise. Better recovery translates to better performance in future workouts.

Supplementation Guidelines

• Studies suggest starting tart cherry supplementation one week prior to strenuous exercise and continuing it on the day of the event as well as for a couple of days afterward for optimal recovery benefits.

• The same supplementation pattern applies when examining endurance performance; tart cherries should be consumed two hours before an event or race for maximum effect.

Nutritional Strategies for Endurance Events

Carbohydrate Intake During Exercise

• Carbohydrate intake is critical during long races; initial low-intensity phases allow for approximately 100 grams depending on the cyclist's role and body weight. Proper ratios (2:1) are necessary to optimize glucose oxidation while avoiding digestive issues.

Post-Exercise Recovery Timing

• Many athletes mistakenly focus only on the first hour post-exercise for recovery; however, repair processes continue beyond this timeframe, necessitating attention to recovery strategies over a full 24-hour period after competition. Essential amino acids play a vital role in this extended recovery phase.

Considerations for Gender Differences in Nutrition

Carbohydrate Recommendations

• Recommendations regarding carbohydrate intake should be based on exercise duration, intensity, and individual body weight rather than gender alone; men typically weigh more but both genders can benefit from similar carbohydrate strategies if approved by their trainers.

Research Insights on Nutritional Supplements

Study Limitations

• A controlled study involving nine cyclists showed no statistically significant differences in outcomes despite some trends favoring specific dietary approaches; larger sample sizes may yield different results regarding nutritional impacts on performance and recovery over time.

Creatine Use

• Creatine can be beneficial not just during recovery phases but also potentially enhances overall athletic performance despite being less common in endurance sports like cycling. Its use could provide advantages even during recovery periods following intense training sessions or competitions.

Practical Application of Recovery Drinks

Administration Timing

• For optimal results within team protocols, magic cherry supplements are administered first to reduce inflammation followed by hydration with a recovery drink shortly thereafter; this sequence aids both rehydration and glycogen replenishment while promoting muscle re-synthesis through included proteins in these drinks.

Magic Cherry Extracts: Benefits Beyond Sports

Anti-Inflammatory and Antioxidant Properties

• Magic cherry extracts are beneficial not only for sports but also for general health due to their anti-inflammatory and antioxidant properties.

• Moderate intensity exercise is inherently anti-inflammatory, while strenuous exercise can promote inflammation, which magic cherry extracts can help counteract.

Training Stress Management

• Athletes should focus on proper training that avoids excessive stress; magic cherry can be used when training becomes too stressful.

• It’s important to find a balance in training intensity to optimize performance without over-stressing the body.

Flavor Management During Races

• A question arises regarding managing extreme sweetness during long races, particularly in events lasting 21 days.

• The variety of flavors available helps mitigate complaints about flavor fatigue during prolonged races.

Gradual Introduction of Magic Cherry Extract

• An initial strategy involves starting with 60 grams of magic cherry extract, gradually increasing to 90 grams over five weeks.

• This gradual approach aims to optimize oxidation and enhance overall performance.

Acknowledgments

• Appreciation is expressed towards Gorka Prieto and Luca Mondazzi for their valuable contributions to the discussion.