Tanja Juuti

Is work engagement related to healthy cardiac autonomic activity? Evidence from a field study among Finnish women workers

Asko Tolvanen, Taru Feldt, Saija Mauno, 2012 .

Estimating oxygen consumption from heart rate and heart rate variability without individual calibration

Ari Nummela, Heikki Rusko, Juhani Smolander, 2011, Clinical physiology and functional imaging.

A new heart rate variability-based method for the estimation of oxygen consumption without individual laboratory calibration: application example on postal workers.

Veikko Louhevaara, Kari Laine, Heikki Rusko, 2008, Applied ergonomics.

Effects of exercise intensity and duration on nocturnal heart rate variability and sleep quality

Heidi Syväoja, Heikki Kyröläinen, Tero Myllymäki, 2011, European Journal of Applied Physiology.