diff options
Diffstat (limited to 'lib/postrunner/HRV_Analyzer.rb')
| -rw-r--r-- | lib/postrunner/HRV_Analyzer.rb | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/lib/postrunner/HRV_Analyzer.rb b/lib/postrunner/HRV_Analyzer.rb index c240046..77162bd 100644 --- a/lib/postrunner/HRV_Analyzer.rb +++ b/lib/postrunner/HRV_Analyzer.rb @@ -21,8 +21,12 @@ module PostRunner attr_reader :rr_intervals, :timestamps, :errors - # Typical values for healthy, adult humans are between 2.94 and 4.32. We - # use a slighly broader interval. + # According to Nunan et. al. 2010 + # (http://www.qeeg.co.uk/HRV/NUNAN-2010-A%20Quantitative%20Systematic%20Review%20of%20Normal%20Values%20for.pdf) + # rMSSD (ms) are expected to be in the rage of 19 to 75 in healthy, adult + # humans. Typical ln(rMSSD) (ms) values for healthy, adult humans are + # between 2.94 and 4.32. We use a slighly broader interval. We'll add a + # bit of padding for our limits here. LN_RMSSD_MIN = 2.9 LN_RMSSD_MAX = 4.4 @@ -45,11 +49,7 @@ module PostRunner @timestamps[-1] end - # Compute the root mean square of successive differences. According to - # Nunan et. al. 2010 - # (http://www.qeeg.co.uk/HRV/NUNAN-2010-A%20Quantitative%20Systematic%20Review%20of%20Normal%20Values%20for.pdf) - # rMSSD (ms) are expected to be in the rage of 19 to 75 in healthy, adult - # humans. + # Compute the root mean square of successive differences. # @param start_time [Float] Determines at what time mark (in seconds) the # computation should start. # @param duration [Float] The duration of the total inteval in seconds to |