1. (4) Breidahl T, Christensen M, Jepsen JR, Johansen JP, Omland Ø:The influence of ship movements on the energy expenditure of fishermen: a study during a North Sea voyage in calm weather, International Maritime Health, Vol.64,No.3,pp.114–120, 2013.
2. (5) F. B. Horak and L. M. Nashner.Central Programming of Postural Movements: Adaptation to Altered Support-Surface Configurations. Journal of Neurophysiology 1986; 55(6): 1369-1381.
3. (6) Renon Doine, Takanori Sakamaki, Hiroaki Seta, Masamitsu Ito, Akihiko Homma and Yasuhiro Fukui : The Exercise Load of Passengers' Postural Control Against Ship Motion Using Human Energy Expenditure, Advanced Biomedical Engineering, Vol.4, pp.164-169, 2015. 9, (doi:10.14326/abe.4.164).
4. Analysis of the Standing Postural Motion of Passengers against Ship Motion
5. (11) Kazuo Male: Dynamic Characteristic of Human Energy Metabolism Observed from Transition of Walking, Journal of the Anthropological Society of Nippon, Vol.84, No.3, pp.221-229, 1976,(doi:10.1537/ase1911.84.221).