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The Role of Carbohydrate Blends and Electrolytes on Physical and Mental Performance During Cycling in the Heat

ConditionsHydrationDehydration (Physiology)Performance
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-55
SponsorArizona State University

About this trial

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.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

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

Disqualifiers

Taking medicine influences the cardiovascular system

non-steroidal anti-inflammatory drugs during the last week

Cancer Diagnosis during the last 5 years

Current Pregnancy

Trial design

Design model

Crossover

Treatments tested in this trial

  • Water (Placebo)

    Dietary supplement

    Flavor water

  • Carbohydrate Milk Permeate sports drink

    Dietary supplement

    4.4% carbohydrate sports drink

  • 6% Sports drink

    Dietary supplement

    Gatorade with 6% carbohydrate content

  • Low-Carbohydrate Milk Permeate sports drink

    Dietary supplement

    2.2% Carbohydrate Milk Permeate sports drink

Treatment groups

14 Participants
are divided into 4 treatment groups
Group A: PlaceboPlacebo comparator 1 intervention
Group B: Carbohydrate Milk Permeate sports drinkExperimental treatment 1 intervention
Group C: Traditional Sports drink with 6% carbsExperimental treatment 1 intervention
Group D: Low Carbohydrate Milk Permeate sports drinkExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Time to completion of 5 kilometer cycling time trial

cycling performance expressed as time to completion.

Time frame
Five minutes after completion of the two-hour cycling protocol
2

Psycho-motor Vigilance test

Psycho-motor Vigilance test measured by reaction time in milliseconds

Time frame
Five minutes after completion of the 5-kilometer cycling test

Secondary outcomes

1

Plasma Osmolality

Plasma osmolality

Time frame
Plasma osmolality at 0, 30, 60, 90, and 120 minutes of the 2-hour steady cycling, at the end of the 5-kilometer cycling time trial, and within 2 minutes after the cognitive test.
2

Carbohydrate oxidation rate during exercise

Carbohydrate oxidation rate during 2-h steady-state cycling exercise

Time frame
At minutes 15, 60, and 120 of the 2-h steady-state cycling exercise

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Arizona State University

Lead sponsor

Source ClinicalTrials.gov

This trial is not recruiting at the moment. You can still explore other options: