TABLE 5.

Reproducibility and technical error for selected traits as derived from the test–retest of the HERITAGE protocol at baseline and from a quality control substudy performed on subjects measured three times within 3 wk across the four clinical centers.

	Heritage Family Subjects (n Varies from 279 to 745)			Quality Control Substudy (n Varies from 55 to 60)
	Intraclass Correlation	Technical Error	Coefficient of Variation (%)	Intraclass Correlation	Technical Error	Coefficient of Variation (%)
Body weight (kg)	1.00	0.1	0.2	1.0	0.7	0.2
HR 50 W (bpm)	0.89	6.1	4.4	0.79	6.5	6.1
V̇O2 at 60% max (mL O2·min−1)	0.99	53.4	3.6	0.98	62.2	3.5
Cardiac output at 60% max (L·min−1)	0.93	0.8	5.9	0.95	0.7	4.5
Max HR (bpm)	0.88	5.4	2.9	0.88	3.7	2.0
V̇O2 max (mL·min−1)	0.95	119.9	5.1	0.96	136.9	4.7
Cholesterol (mmol·L−1)	0.95	0.21	4.7	0.93	0.24	6.0
HDL-Chol (mmol·L−1)	0.94	0.06	6.2	0.94	0.06	6.0
LPL (nmol·min−1·mL−1)	0.95	8.1	15.4	0.95	7.6	14.7
TESTO (nmol·L−1)
Male	0.95	1.9	13	0.95	1.8	11
Female	0.90	0.3	23	0.92	0.2	13
DHEAS (nmol·L−1)
Male	0.96	955	16	0.94	868	13
Female	0.97	673	18	0.92	801	18
SHBG (nmol·L−1)
Male	0.97	4.1	11	0.98	3.6	9
Female	0.97	11.7	15	0.99	11.9	12

Adapted from Wilmore et al. (26), Wilmore et al. (27), Skinner et al. (20), Despres et al. (18), and He et al (28).