For the analysis of gas-exchange data and the determination of the gas-exchange ventilatory threshold, we have developed WinBreak 3.7, a professional tool that provides far greater flexibility than the proprietary automated algorithms that are built into commercial metabolic analysis software packages (watch this video).
Some of the features of WinBreak 3.7 include:
- Three graphical modules: V-slope (VCO2 by VO2), ventilatory equivalents, and excess CO2. Module for inter-method comparisons.
- Choice of five validated algorithms for the V-slope: (a) Jones & Molitoris (1984), Orr et al. (1982), Beaver et al. (1986), Cheng et al. (1992), Sue et al. (1988). The standard Jones & Molitoris (1984) algorithm is used for the ventilatory equivalents, and excess CO2 modules. Complete computational reports for each algorithm.
- Module for determining the respiratory compensation point (RC) based on VE by VCO2 (following Beaver et al., 1986).
- Plots of residuals of the single-regression and two-regression solutions.
- Powerful data processing: averaging, interpolation, outlier removal, five smoothing methods (running average, Savitzky-Golay, low-pass FFT, cubic spline, polynomial regressions from 2nd to 10th order).
- Fully customizable graphs, can be saved as metafiles or bitmaps.
- Extensive context-sensitive help system.
- Detailed 78-page user guide.
- Can be customized to read ASCII data from any metabolic analysis software package. Saves data in ASCII and ExcelTM formats.
Ekkekakis, P., Lind, E., Hall, E.E., & Petruzzello, S.J. (2008). Do regression-based computer algorithms for determining the ventilatory threshold agree? Journal of Sports Sciences, 26(9), 967-976. [DOI] [PubMed]
Zenko, Z., & Ekkekakis, P. (2019). Internal consistency and validity of measures of automatic exercise associations. Psychology of Sport and Exercise, 43, 4-15. [DOI]
Zenko, Z., Ekkekakis, P., & Ariely, D. (2016). Can you have your vigorous exercise and enjoy it too? Ramping intensity down increases postexercise, remembered, and forecasted pleasure. Journal of Sport and Exercise Psychology, 38(2), 149-159. [DOI] [PubMed]