Table 1

Measures of the rest-activity cycle at baseline and after transition into DST

Variable
Before
After


Mean (SD)
Mean (SD)

IS
0.67 (0.13)
0.75 (0.07)
IV
0.91 (0.26)
0.92 (0.23)
RA
0.93 (0.03)
0.92 (0.05)
tau (min)
1446.40 (9.00)
1440.60 (10.82)

Abbreviations: SD = standard deviation, IS = intra-daily stability, IV = intra-daily variability, RA = relative amplitude, tau = circadian period.

Lahti et al. Journal of Circadian Rhythms 2006 4:1   doi:10.1186/1740-3391-4-1