Table 4.

Core interthreshold zones at 1000 lx under red and blue light conditions in the winter

Subject	Red light			Blue light
	Tre-sw (°C)	Tre-shivering (°C)	CIZ (°C)	Tre-sw (°C)	Tre-shivering (°C)	CIZ (°C)
a	37.20	36.66	0.54	37.54	36.89	0.65
b	37.42	36.68	0.74	37.74	36.82	0.92
c	37.05	36.80	0.25	37.48	36.98	0.50
d	37.38	36.88	0.50	37.58	36.62	0.96
e	37.47	36.91	0.56	37.35	36.83	0.52
Mean ± SD	37.30 ± 0.18	36.79 ± 0.11	0.52 ± 0.18	37.54 ± 0.14	36.83 ± 0.13	0.71 ± 0.28

CIZ, core interthreshold zone; T_re-sw, sweating threshold; T_re-shivering, shivering threshold.