IJCS | Volume 32, Nº5, September/October 2019

477 Table 2 - Characteristics of participants by subgroups of individuals who gave a correct answer and a wrong answer to the question about the World Health Organization recommendation on exercise Total Wrong answer Correct answer p value Population (n) 426 236 190 (%) 55.4% 44.6% Age (years) 31 (18) 30 (17.8) 32.5 (18) 0.373 Sex, n (%) Male 194 (45.5) 100 (51.5) 94 (48.5) 0.144 Occupation n (%) Non-physicians 265 (62.2) 164 (61.9) 101 (38.1) 0.002 Non-cardiologist physicians 55 (12.9) 26 (47.3) 29 (52.7) Cardiologist physicians 106 (24.9) 46 (43.4) 60 (56.6) Frequency of weekly exercise, n(%) Never 94 (22.1) 65 (69.1) 29 (30.9) 0.017 < Once a week 35 (8.2) 20 (57.1) 15 (42.9) Once a week 36 (8.5) 22 (61.1) 14 (38.9) Two-three times/week 191 (44.8) 97 (50.8) 94 (49.2) Almost every day 70 (16.4) 32 (45.7) 38 (54.3) Exercise intensity n(%) Without sweating or breathing fast 47 (11) 33 (70.2) 14 (29.8) < 0.001 Sweating and breathing fast 240 (56.3) 115 (47.9) 125 (52.1) Until exhaustion 46 (10.8) 23 (50) 23 (50) Exercise duration n(%) Less than 15 minutes 5 (1.2) 2 (40) 3 (60) 0.034 Between 15 and 30 minutes 31 (7.3) 16 (51.6) 15 (48.4) Between 30 e 60 minutes 206 (48.4) 107 (51.9) 99 (48.1) More than 60 minutes 91 (21.4) 46 (50.5) 45 (49.5) Heart rate (bpm) 79.5 (20) 80.5 (20.8) 78.5 (21) 0.385 PA-I 3.75 (4.62) 2.37 (3.75) 3.75 (4.05) < 0.001 Body mass index (kg/m 2 ) 0.204 PA-I Classification n(%) Inactive 93 (21.8) 65 (69.9) 28 (30.1) 0.003 Lightly active 64 (15) 37 (57.8) 27 (42.2) Moderately active 148 (34.7) 77 (52) 71 (48) Highly active 121 (28.4) 57 (47.1) 64 (52.9) VO 2 max (mL/kg/min) 40.03 (8.54) 39.35 (9.01) 41.2 (7.04) 0.03 Predicted %VO 2 89.4 (1.2) 88.3 (1.2) 91 (1.1) 0.009 Poor aerobic conditioning (%) 69 (16.2) 39 (16.5) 30 (15.8) 0.838 PA-I: physical activity summary index. Meira et al. Talk the talk and walk the walk! Int J Cardiovasc Sci. 2019;32(5):473-480 Original Article