As part of the mandatory annual assessment of physical fitness, soldiers are required to complete a standardized military march. A total of 100 healthy volunteer participants will be recruited from soldiers serving at the Bundeswehr Hospital Ulm. During this march, physiological and metabolic parameters will be assessed. At baseline, anthropometric data and information on medical history, lifestyle, and fitness status will be collected, including a validated questionnaire on physical activity. Blood and urine samples will be obtained to determine routine laboratory and metabolic parameters, and body composition will be assessed using bioelectrical impedance analysis. In addition, selected sensors will be applied to continuously record physiological data. Participants will then complete a 6 km march carrying 15 kg of equipment. After completion of the march, sensors will be removed and additional blood and urine samples will be collected to evaluate metabolic responses to physical exertion, including catecholamine levels.
Age range
18 Years
Sex
ALL
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Glucose dynamics during exercise
Timeframe: 1 hour
Sympathetic nervous system activation (catecholamines)
Timeframe: Baseline, immediately after the march (approximately 1 hour after baseline)
Correlation between sympathetic activation (catecholamines) and glucose dynamics during endurance exercise
Timeframe: Baseline, during the 1 hour-march, immediately after the march (approximately 1 hour after baseline)
Heart rate variability
Timeframe: Baseline, during the 1 hour-march, immediately after the march (approximately 1 hour after baseline)
Correlation between heart rate variability and glucose dynamics during endurance exercise
Timeframe: Baseline, during the 1 hour-march, immediately after the march (approximately 1 hour after baseline)