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Water Bolus Volumes During Continuous Exercise in Heat

University at Buffalo (UB) logo

University at Buffalo (UB)

Status

Completed

Conditions

Hyperthermia
Dehydration (Physiology)

Treatments

Other: Hydration protocol - 500 mL water bolus
Other: Hydration protocol - 237 mL water bolus

Study type

Interventional

Funder types

Other

Identifiers

NCT04613856
STUDY00003387

Details and patient eligibility

About

Hydration is important to all individuals including occupational workers who complete physical activity in the heat. Current best practice guidelines suggest drinking a cup of water every 15-20 minutes during activity in a hot environment, but research shows this may not be ideal for best maintaining hydration. The goal of this study is to determine if larger, more frequent water boluses better maintain hydration than smaller, less frequent water boluses during moderate intensity physical activity in the heat.

Enrollment

16 patients

Sex

Male

Ages

18 to 39 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Male
  • 18-39 y old
  • Self-reported to be healthy

Exclusion criteria

  • Female
  • Not within defined age range
  • History of any cardiovascular, neurologic, or metabolic disease
  • Current tobacco use or regular use within the last 2 years.
  • Taking medications with known thermoregulatory or cardiovascular effects (e.g., aspirin, beta blockers, diuretics, psychotropics, etc.)
  • Inability to follow the rules of the protocols or understand the consent form

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

None (Open label)

16 participants in 2 patient groups

Current Best Practice - 237 mL water bolus
Active Comparator group
Treatment:
Other: Hydration protocol - 237 mL water bolus
New Intervention - 500 mL water bolus
Experimental group
Treatment:
Other: Hydration protocol - 500 mL water bolus

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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