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Accession Number ADA567660
Title Measurement of Exercise Intensity with a Tri-Axial Accelerometer during Military Training.
Publication Date Oct 2009
Media Count 8p
Personal Author G. J. Rietjens K. R. Westerterp L. Wouters
Abstract Exercise load and intensity, as reflected in energy expenditure, are determinants of performance. Here, we evaluated a newly developed tri-axial accelerometer for movement registration (Directlife, Philips Research, Eindhoven, The Netherlands) for the assessment of exercise intensity and exercise load at high-intensity field training. Subjects were 16 well-trained men with a mean (SD) age of 24 3 y and body fat of 15.8 2.1 %. Physical activity was monitored continuously with accelerometers for a twelve-day interval while total energy expenditure was measured simultaneously with the doubly labelled water technique. Subjects did wear three accelerometers, 3 x 3 x 1 cm and 13 g each, at three different locations, trouser pocket, waist belt and breast pocket. Accelerometer output was stored over one-minute intervals and loaded to a computer at the end of the training interval. Urine samples were collected at baseline, before drinking the doubly labeled water as a last drink of the day, on the subsequent day and at further four-day intervals. Urine samples were analyzed with Isotope Ratio Mass Spectrometry. There was a significant body weight loss of 2.0 1.4 kg.
Keywords Acceleration
Accelerometers
Adipose tissue
Base lines
Body weight
Computers
Continuity
Energy consumption
Exercise(Physiology)
Indicators
Ingestion(Physiology)
Intensity
Intervals
Isotopes
Metabolism
Military training
Models
Netherlands
Output
Physical properties
Position(Location)
Rates
Ratios
Reflection
Sampling
Symposia
Training
Urine
Variations
Weight reduction

 
Source Agency Non Paid ADAS
NTIS Subject Category 57A - Anatomy
57S - Physiology
94K - Laboratory & Test Facility Design & Operation
Corporate Author Maastricht Univ. (Netherlands). School of Business and Economics.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1309
Contract Number RTO-MP-HFM-181

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