Association between Resting Heart Rate and Health-Related Physical Fitness in Brazilian Adolescents

Table 2

Relationship between resting heart rate and health-related physical fitness components in adolescents.

Variable		Crude Analysis				Adjusted Analysis			Cohen’s f^2
	ß^a	(95%CI)	p	R^2	ß^a	(95CI)	p	R^2	(df = 5)
Male
Aerobic fitness	-0.09	(-0.11; -0.07)	<0.01	0.15	-0.11	(-0.14; -0.08)	<0.01	0.21	0.27
Handgrip strength	-0.13	(-0.20; -0.06)	<0.01	0.02	-0.10	(-0.18; -0.01)	0.28	0.03	0.03
Sit-and-reach test	-0.15	(-0.31; 0.15)	0.07	0.01	-0.15	(-0.34; 0.03)	0.10	0.03	0.03
Sum of skinfolds	0.11	(-0.22; 0.24)	0.10	0.01	0.50	(0.25; 0.75)	<0.01	0.05	0.05
Female
Aerobic fitness	-0.05	(-0.08;-0.03)	<0.01	0.04	-0.09	(-0.12; -0.06)	<0.01	0.12	0.14
Handgrip strength	-0.10	(-0.20; -0.01)	0.02	0.01	-0.04	(-0.15; 0.05)	0.36	0.04	0.04
Sit-and-reach test	-0.04	(-0.17; 0.08)	0.47	0.01	-0.05	(-0.19; 0.09)	0.48	0.03	0.03
Sum of skinfolds	-0.05	(-0.12; 0.01)	0.14	0.01	0.17	(0.36; 2.72)	<0.01	0.06	0.06

a: regression coefficient; b: adjusted analysis by sex, age, physical activity, sexual maturation, and body mass index; R²: determination coefficient; CI: confidence interval; Cohen’s f²:effect size for multiple linear regression; df: degree freedom.