Table 1.

Morphological characteristics of the tropical group (TR) and its sub-groups (short stay (TR-S), and long stay (TR-L)) and the Japanese group (JP) ¹

	TR-S,2n = 5	TR-L,3n = 7	TR, n = 12	JP, n = 12
Age, years	23.40 ± 1.86	27.29 ± 1.57	25.67 ± 1.28	24.08 ± 0.91
Body height, cm	173.52 ± 2.35	173.01 ± 2.18	173.23 ± 1.53	169.93 ± 1.64
Body mass, kg	63.44 ± 1.88	63.63 ± 1.99	63.55 ± 1.34	59.70 ± 2.45
BSA4, m2	1.80 ± 0.03	1.80 ± 0.04	1.80 ± 0.03	1.72 ± 0.04
BSA/body mass, m2/kg	0.03 ± 0.0004	0.03 ± 0.0004	0.03 ± 0.0003	0.03 ± 0.0006
Body fat, %	18.86 ± 1.81	21.43 ± 2.11	20.03 ± 1.53	19.96 ± 1.25

¹Data are presented as mean ± standard error.

²TR-S, Tropical subjects who had stayed in Japan for < 11 months before the experiment.

³TR-L, Tropical subjects who had stayed in Japan for > 23 months before the experiment.

⁴BSA, body surface area.