Key features of isotonic drinks:

1. Solute balance: Isotonic drinks have a concentration of solutes (such as carbohydrates and electrolytes) similar to that of the body, which facilitates their rapid and efficient absorption without altering fluid balance. This means they can be consumed in large quantities without causing stomach upset.

2. Carbohydrates: These drinks provide a source of rapidly absorbed carbohydrates (such as glucose or maltodextrin), allowing the body to quickly obtain energy during prolonged exercise, helping to maintain muscle glycogen levels and delaying fatigue.

3. Electrolytes: Sports drinks also contain essential electrolytes, such as sodium, potassium, magnesium, and calcium, which are lost through sweat during exercise. Replenishing these electrolytes is crucial for preventing dehydration, muscle cramps, and maintaining physical performance.

4. Rapid hydration: Because they have a composition similar to that of the body, these drinks promote rapid rehydration, which is essential for maintaining a high level of performance during long workouts or competitions.

Why are they useful for running and trail running?

• Performance enhancement: Isotonic drinks help maintain energy and electrolyte levels during prolonged efforts, allowing for more consistent and efficient performance.
• Cramp prevention: Electrolytes help maintain fluid balance and prevent muscle cramps, which are common during long, high-intensity activities.
• Real-time recovery: These drinks allow for rapid rehydration and nutrient replenishment during activity, preventing premature fatigue and improving endurance.

Isotonic drinks are perfect for long runs, trail workouts, or any endurance activity where you need to maintain energy and hydration at all times. They can be taken before, during, and after exercise to keep your body balanced and maximize performance.