The Impact of a Caffeinated Sports Drink on Performance (NRG)

Arizona State University (ASU)

Status: Completed

Conditions: Dehydration; Dehydration Related to Exercise

Treatments: Dietary Supplement: no-sugar electrolyte drink; Dietary Supplement: carbohydrate electrolyte drink; Dietary Supplement: Water (Placebo); Dietary Supplement: Caffeinated Carbohydrate and electrolyte drink

Study type: Interventional

Funder types: Other

Identifiers

NCT06721793

FP00041543

AWD00039989 (Other Identifier)

Details and patient eligibility

About

Caffeine is known to enhance physical and mental performance, but few beverages combine caffeine with electrolytes and carbohydrates to enhance exercise performance. This study evaluates a caffeinated electrolyte-glucose drink's effect on endurance, strength, and cognition. Using a repeated-measures, cross-over design, 20 trained cyclists will complete one familiarization and four randomized 3-hour experimental trials (Liquid I.V.™ Energy Multiplier, Hydration Multiplier, Sugar-Free Hydration Multiplier, and water). Each trial includes 2 hours of cycling in a warm environment (32ºC), followed by strength and cognitive assessments. Cycling performance, capillary blood, urine, and expiratory gases will be collected.

Full description

Each subject will complete 5 trials (1 familiarization and 4 experimental) consisting of approximately 2 hours cycling in a warm environment (90ºF), followed by strength assessment and cognitive assessment via questionnaire. Each trial will be identical, with the only difference being the type of drink consumed during each trial. The first trial will be for familiarization without any blood sampling. The rest of the trials will be completed in a randomized order and the drink consumed

Cycling Endurance Exercise Performance

The exercise test will consist of a series of three consecutive cycling sets in a warm environment (90ºF), with each series consisting of:

1. a 30-min submaximal ride (50% maximal power as determined from the initial)
2. a 5-km time trial race-like performance effort. During each 30 min submaximal rides participants will drink a total 500 mL of fluid spread out during the 30 min. During the 5 km performance test the participants will drink 25 mL of fluid at the end of each kilometer.

At regular intervals throughout the exercise task, body weight, blood samples, respiratory gasses, and perceptual data will be collected. See study schematic provided below for specific measurement timepoints.

Upon completion of the cycling task subjects will moved to another room with cool temperature (70ºF), where strength and cognitive function will be assessed to determine the influence of each beverage on indices of exercise performance and fatigue.

Enrollment: 26 patients

Sex: All

Ages: 18 to 55 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Age 18-55
• 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

Exclusion criteria

• • History of caffeine sensitivity

  • Cancer Diagnosis during the last 5 years
  • Pregnancy
  • History of renal disease, hypertension
  • History of a heat stroke
  • Use of testosterone therapy
  • Adults who are unable to consent (impaired decision-making capacity)

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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26 participants in 4 patient groups, including a placebo group

Water

Placebo Comparator group

Description:

Water masked with non-caloric and no-sodium

Treatment:

Dietary Supplement: Water (Placebo)

Carbohydrate electrolyte solution

Experimental group

Description:

2% carbohydrate solution with 1,020 mg/L of Sodium

Treatment:

Dietary Supplement: carbohydrate electrolyte drink

no-sugar electrolyte solution

Experimental group

Description:

1% carbohydrate solution with 1,060 mg/L of Sodium

Treatment:

Dietary Supplement: no-sugar electrolyte drink

Caffeinated carbohydrate electrolyte solution

Experimental group

Description:

1% carbohydrate solution with 1,000 mg/L of Sodium, and 200mg/L Caffeine

Treatment:

Dietary Supplement: Caffeinated Carbohydrate and electrolyte drink