The Role of Carbohydrate Blends and Electrolytes on Physical and Mental Performance During Cycling in the Heat
Arizona State University
Summary
The aim of the present study is to evaluate the effectiveness of a milk permeate-based sports drink on hydration, carbohydrate oxidation, exercise performance, vigilance, and reaction time in the heat. We anticipate that the milk permeate, with 44 g per liter and high sodium and potassium, will lead to better hydration, energy delivery, and physical and cognitive performance.
Description
EXPERIMENTAL PROTOCOL Each subject will complete five trials (one familiarization and four experimental), consisting of computer-based vigilance and reaction time tests (VIG/RT) administered before and after approximately 2 hours of cycling in a warm environment (90°F, 25-35% relative humidity). Each trial will be identical, with the only difference being the type of drink consumed during each trial. The beverages are commercially available products and are not considered investigational products under FDA regulations. The first trial will be a familiarization trial, during which participants…
Eligibility
- Age range
- 18–55 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * Healthy and injury free (muscle, skeletal) for greater than 2 months * Active cyclists who train at least 3 times per week * Body mass index (BMI) range of 18.5-30 kg/m2 * VO₂max ≥ 51 mL/kg/min for male participants * VO₂max ≥ 45 mL/kg/min for female participants Exclusion Criteria: * Taking medicine influences the cardiovascular system * non-steroidal anti-inflammatory drugs during the last week * Cancer Diagnosis during the last 5 years * Current Pregnancy * History of renal disease, hypertension, obstructive gastrointestinal tract disease, disorders or impairment of…
Interventions
- Dietary SupplementWater (Placebo)
Flavor water
- Dietary SupplementCarbohydrate Milk Permeate sports drink
4.4% carbohydrate sports drink
- Dietary Supplement6% Sports drink
Gatorade with 6% carbohydrate content
- Dietary SupplementLow-Carbohydrate Milk Permeate sports drink
2.2% Carbohydrate Milk Permeate sports drink
Location
- 850 Phoenix Bioscience CorePhoenix, Arizona