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Related Experiment Video

Updated: Jul 26, 2026

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Published on: May 8, 2016

Immune function and incidence of infection during basic infantry training.

I K Brenner¹, Y D Severs, S G Rhind

¹Biomedical Sciences Section, Defence and Civil Institute of Environmental Medicine, Toronto, Ontario, Canada M3 M 3B9.

Military Medicine

|January 6, 2001

Summary

Infantry training improved immune cell function and body composition in military personnel. This 18.5-week program did not adversely affect overall health status or aerobic fitness.

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Area of Science:

Military medicine
Exercise immunology
Human physiology

Background:

Military training programs are essential for personnel readiness.
Understanding the health impacts of intense training is crucial for soldier well-being.
Previous research has not fully elucidated the comprehensive health effects of infantry training.

Purpose of the Study:

To evaluate the effects of an 18.5-week infantry training program on the health status of military personnel.
To assess changes in aerobic power, body composition, and immune function.
To determine if the training program has adverse health consequences.

Main Methods:

23 male military personnel underwent an 18.5-week infantry training course.
Measurements included aerobic power, body composition, and immune markers (natural killer cell activity, lymphocyte proliferation, in vivo cell-mediated immunity, secretory immunoglobulin A).
Health logs were used to self-report sickness symptoms.

Main Results:

Subjects exhibited reduced body fat and maintained aerobic fitness.
Significant enhancement in immune cell function was observed.
In vivo cell-mediated immunity remained unchanged, and secretory immunoglobulin A levels decreased.
The incidence of infection remained stable.

Conclusions:

The infantry training program did not negatively impact the overall health status of recruits.
While some immune markers changed, key health indicators remained stable or improved.
Current infantry training protocols appear safe for recruit health.