TABLE 2

Estimates of quantitative genetic parameters for heart beat phenotypes

TotalNCCA
ParameterHRHRVHRHRVHRHRV
Pooled
 M2.72250.74552.67330.75492.87910.7157
 VG0.06670.01080.05750.00470.08620.0093
 CVG9.487013.94618.97009.066710.199213.5078
 VE0.12050.04640.12400.04700.10760.0438
 CVE12.748128.887113.172528.710311.393129.2393
 VP0.18720.05720.18150.05170.19380.0531
 h20.35640.18900.31680.09070.44490.1759
 rGT−0.5540−0.5422−0.5427
 rPT−0.4683-0.4846−0.4039
 rGS0.95710.88460.97911.04770.89420.5504
 rPS0.83830.56570.86360.66880.78110.4515
Female
 M2.74780.74672.69120.76002.93050.7048
 VG0.06380.00540.05570.00380.07950.0102
 CVG9.19319.85198.76648.11859.619314.3017
 VE0.11670.04520.11910.04630.10800.0404
 CVE12.433028.477512.822128.318711.213228.5261
 VP0.18050.05060.17470.05010.18740.0506
 h20.35350.10690.31850.07590.42390.2009
Male
 M2.69860.73672.65040.74262.83340.7204
 VG0.06280.00520.05720.00510.07380.0050
 CVG9.28699.76589.02079.65789.58649.7912
 VE0.12480.04800.13030.04810.10760.0478
 CVE13.091129.735213.620629.522411.575730.3416
 VP0.18760.05320.18750.05320.18140.0528
 h20.33480.09740.30490.09670.40680.0943
  • The parameter estimates are for the mean (M); genotypic, environmental, and phenotypic variance (VG, VE, VP, respectively); coefficients of genotypic (CVG) and environmental (CVE) variance; heritability (h2); genetic and phenotypic correlation between the traits (rGT, rPT, respectively); and genetic and phenotypic correlation between the sexes (rGS, rPS, respectively). HR and HRV refer to heart rate and heart rate variability traits as defined in materials and methods.