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Fig. 3 | Environmental Health and Preventive Medicine

Fig. 3

From: The effect of nocturnal blue light exposure from light-emitting diodes on wakefulness and energy metabolism the following morning

Fig. 3

Time course of energy metabolism. Average ± SE of energy expenditure, oxygen consumption, carbon dioxide production and respiratory quotient in 30 min intervals were plotted for blue light (465 nm, open circle) and no light (0 lux, filled circle) conditions. The morning after evening blue light exposure, energy expenditure, oxygen consumption and carbon dioxide production were significantly lower than those not exposed to evening light (p ≤ 0.05; Wilcoxon signed rank test)

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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