The effects of exercise in the heat and hydration status on cognitive function

Effects of heat stress and dehydration on cognitive function in elite female field hockey players

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN95800060

Enrollment

Registered

2016-09-23

Start date

2006-12-01

Completion date

Unknown

Last updated

2019-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sports performance Not Applicable Sports performance

Interventions

Participants are randomised to undertake four exercise conditions in a random order. The exercise undertaken consists of 50 minutes of activity, divided into 2 x 25 min blocks of exercise separated by

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: 1. 18-40 years old 2. Female elite 3. Elite field hockey players

Exclusion criteria

Exclusion criteria: 1. Exercise-induced asthmatics 2. History of heart problems 3. Family history of sudden death below the age of 50

Design outcomes

Primary

Measure	Time frame
Cognitive function is assessed using the Stroop test, visual search (VS) test and Sternberg Working memory test before and 60 minutes after each exercise condition.	—

Secondary

Measure	Time frame
1. Rectal temperature recorded at baseline (time point 0) and every 10 minutes throughout exercise and immediately after completion of the final cognitive test battery in each exercise condition 2. Rating of perceived exertion on a scale of 6-20 using the Borg scale recorded at time point 0 and every 10 minutes throughout exercise in each exercise condition 3. Rating of perceived thirst (9 point scale ranging from not thirsty to very, very thirst) at time point 0 and every 10 minutes throughout exercise in each exercise condition	—

Measure

Time frame

1. Rectal temperature recorded at baseline (time point 0) and every 10 minutes throughout exercise and immediately after completion of the final cognitive test battery in each exercise condition 2. Rating of perceived exertion on a scale of 6-20 using the Borg scale recorded at time point 0 and every 10 minutes throughout exercise in each exercise condition 3. Rating of perceived thirst (9 point scale ranging from not thirsty to very, very thirst) at time point 0 and every 10 minutes throughout exercise in each exercise condition

—

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026