Research Article

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

Table 1

Characteristics of the sample.

Male Female 
(n = 337)(n= 358)
Mean (SD)Mean (SD)pCohen’s D

RHR (bpm)76.1 (13.6)81.1 (10.9)<0.010.40
Age (years)16.2 (0.1)16.0 (0.1)<0.010.18
Weight (kg)65.7 (0.5)58.5 (0.5)<0.010.60
Height (cm)172.7 (0.3)161.3 (0.2)<0.011.69
BMI (kg/m2)22.0 (3.6)22.4 (4.0)0.040.11
Triceps skinfold (mm)10.8 (5.1)18.7 (6.9)<0.011.30
Subscapular skinfold (mm)10.8 (4.8)15.5 (7.2)<0.010.76
Sum of skinfolds (mm)21.5 (9.5)34.3 (13.5)<0.011.09
Aerobic fitness (mL.kg-1.min-1)42.7 (5.4)35.3 (3.7)<0.011.60
Handgrip strength (kg)71.8 (17.3)45.4 (10.4)<0.011.85
Sit-and-reach test (cm)28.7 (7.6)29.5 (7.6)0.080.11

n () n ()pCramer’s V

Physical activity
Active99 (57.9)72 (42.1)<0.010.01
Less active238 (45.4)286 (54.6)
Sexual Maturation
Pubescent244 (52.7)219 (47.3)<0.01<0.01
Post-Pubescent93 (40.1)139 (59.9)

RHR: resting heart rate; SD: Standard Deviation; p<0.05; Cohen’s D: effect size for comparison between groups; Cramer’s V: effect size for chi-square test.