Comparison of HRV parameters derived from photoplethysmography and electrocardiography signals. - Vala Jeyhani; Shadi Mahdiani; Mikko Peltokangas; Antti Vehkaoja (EMBC, 2015)

Is 50 Hz high enough ECG sampling frequency for accurate HRV analysis? - Shadi Mahdiani; Vala Jeyhani; Mikko Peltokangas; Antti Vehkaoja (EMBC, 2015)

A novel technique for analysis of postural information with wearable devices. - Vala Jeyhani; Shadi Mahdiani; Jari Viik; Niku Oksala; Antti Vehkaoja (BSN, 2018)