Table 1.

Descriptive Characteristics of Study Sample

Measure	Mean ± SD (n = 52)
Subject Characteristics
Age, y	20 ± 1
Sex, m/f	21/31
BMI, kg/m2	23.7 ± 2.4
Body Fat, %	22.8 ± 8.2
Systolic BP, mmHg	117 ± 9
Diastolic BP, mmHg	69 ± 7
Blood Chemistry
Total Cholesterol, mg/dL (n=51)	158 ± 27
LDL Cholesterol, mg/dL (n=51)	85 ± 23
HDL Cholesterol, mg/dL (n=51)	58 ± 13
Non-HDL Cholesterol, mg/dL (n=51)	100 ± 24
Triglycerides, mg/dL (n=51)	72 ± 30
Glucose, mg/dL (n=51)	85 ± 7
CRP, mg/L (n=42)	0.90 ± 0.79
Health Behavior Characteristics
Mean Sleep Duration, h/night	7.1 ± 0.7
Mean MVPA, min/day	67 ± 24
Alcohol Consumption, drinks/week	5.4 ± 5.6
Caffeine Consumption, drinks/week	5.1 ± 5.4
Rest-Activity Rhythm Parameters (Observable Range)
Interdaily Stability (0 to 1)	0.64 ± 0.10
Intradaily Variability (0 to ~2)	0.45 ± 0.09
Relative Amplitude (0 to 1)	0.81 ± 0.06
Autocorrelation at 24h (−1 to +1)	0.44 ± 0.10

BMI, body mass index; BP, blood pressure; LDL, low-density lipoprotein; HDL, high-density lipoprotein; CRP, c-reactive protein; MVPA, moderate-vigorous physical activity