Ricerca avanzata

Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > The Journal of Sports Medicine and Physical Fitness 2012 Agosto;52(4) > The Journal of Sports Medicine and Physical Fitness 2012 Agosto;52(4):337-43

FASCICOLI E ARTICOLI   I PIÙ LETTI   eTOC

ULTIMO FASCICOLOTHE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111

 

The Journal of Sports Medicine and Physical Fitness 2012 Agosto;52(4):337-43

EXERCISE PHYSIOLOGY AND BIOMECHANICS 

 ORIGINAL ARTICLES

Comparing VO2max determined by using the relation between heart rate and accelerometry with submaximal estimated VO2max

Tönis T. M. 1, 2, Gorter K. 1, 2, Vollenbroek-Hutten M.M.R. 1, 2, Hermens H. 1, 2

1 Roessingh Research and Development, Enschede, The Netherlands;
2 Faculty of Electrical Engineering, , Mathematics and Computer Science, Research Group Remote Monitoring and Treatment, University of Twente, Enschede, The Netherlands

AIM: An exploratory study to identify parameters that can be used for estimating a subject’s cardio-respiratory physical fitness level, expressed as VO2max, from a combination of heart rate and 3D accelerometer data.
METHODS: Data were gathered from 41 healthy subjects (23 male, 18 female) aged between 20 and 29 years. The measurement protocol consisted of a sub-maximal single stage treadmill walking test for VO2max estimation followed by a walking test at two different speeds (4 and 5.5 kmh-1) for parameter determination. The relation between measured heart rate and accelerometer output at different walking speeds was used to get an indication of exercise intensity and the corresponding heart rate at that intensity. Regression analysis was performed using general subject measures (age, gender, weight, length, BMI) and intercept and slope of the relation between heart rate and accelerometer output during walking as independent variables to estimate the VO2max.
RESULTS: A linear regression model using a combination of the slope and intercept parameters, together with gender revealed the highest percentage of explained variance (R2 = 0.90) and had a standard error of the estimate (SEE) of 2.052 mL O2kg-1min-1 with VO2max. Results are comparable with current commonly used sub-maximal laboratory tests to estimate VO2max.
CONCLUSION: The combination of heart rate and accelerometer data seems promising for ambulant estimation of VO2max­.

lingua: Inglese


FULL TEXT  ESTRATTI

inizio pagina