Food and beverages during a military exercise

Energy availability, hydration and nutrition in army men during field training

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN93275136

Enrollment

Registered

2024-09-19

Start date

2024-11-23

Completion date

Unknown

Last updated

2024-09-30

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

Conditions

Nutrition and dehydration during military operations Nutritional, Metabolic, Endocrine

Interventions

It is an observational study, so there is no intervention. The researchers plan to do three assessments, i.e., BodyScan with a Tanita to assess body composition, assess daily urine density and assess

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: 1. Male 2. Aged between 20 and 30 years 3. Military personnel 4. During a military operation in Hungary

Exclusion criteria

Exclusion criteria: 1. Female 2. Aged above 30 years

Design outcomes

Primary

Measure	Time frame
1. Relative and absolute body fat mass and body muscle mass (kg-percent) measured with impedance, i.e., with an MC780 Tanita Body Scale, every morning for 1 week 2. Density of morning urine measured with an Atago refractometer every morning for 1 week 3. Energy expenditure in kcal.d-1 measured with an accelerometer continuously for 7 days 4. Sleep duration in min.d-1 measured with an accelerometer continuously for 7 days 5. Sleep disruption measured with the sleep fragmentation index (SFI) and an accelerometer continuously for 7 days	—

Measure

Time frame

1. Relative and absolute body fat mass and body muscle mass (kg-percent) measured with impedance, i.e., with an MC780 Tanita Body Scale, every morning for 1 week 2. Density of morning urine measured with an Atago refractometer every morning for 1 week 3. Energy expenditure in kcal.d-1 measured with an accelerometer continuously for 7 days 4. Sleep duration in min.d-1 measured with an accelerometer continuously for 7 days 5. Sleep disruption measured with the sleep fragmentation index (SFI) and an accelerometer continuously for 7 days

—

Secondary

Measure	Time frame
There are no secondary outcome measures	—

Countries

Belgium

Contacts

Public ContactPatrick Mullie

patrick.mullie@mil.be+32 (0)475809478

Outcome results

None listed

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