... at the wrist and electrogastrograms were carried out during the Uchida-Kraepelin test and rest conditions before and after the test. Heart rate variability was analysed using the CGSA (coarse graining spectral analysis) method while also taking account of effect of respiration. The authors concluded...

... degree of operators during ship navigation. For clarifying an issue of tensional stresses for task loads of ship operators, this paper describes that the tensional stresses were analyzed quantitatively by measuring the heart rate variability under mental work-load during navigations of several car...