Table 2.
Characteristics of study population
| Overall, mean (SD) [IQR] | Race (n = 322) | p value | Static/dynamic sport group (n = 329) | p value | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Black, mean (SD) (n = 72) | White, mean (SD) (n = 250) | IB*, mean (SD) (n = 44) | IC†, mean (SD) (n = 60) | IIB‡, mean (SD) (n = 23) | IIC§, mean (SD) (n = 184) | IIIA¶, mean (SD) (n = 18) | ||||
| Age (y) | 18.68 (0.86) [18.2–18.8] | 18.9 (1.0) | 18.6 (0.79) | 0.2 | 18.5 (0.7) | 18.6 (0.8) | 19.4 (1.4) | 18.7 (0.8) | 18.5 (0.6) | 0.09 |
| Height (cm) | 171.0 (9.2) [165.1–175.6] | 174.6 (9.9) | 169.9 (8.8) | < 0.01 | 175.0 (10.6) | 167.0 (6.2) | 169.0 (7.2) | 172.5 (9.0) | 161.8 (8.2) | <0.01 |
| Weight (kg) | 66.8 (11.6) [59.0–73.4] | 71.90 (14.6) | 65.3 (10.2) | <0.01 | 72.2 (10.0) | 61.4 (9.9) | 59.8 (4.9) | 68.4 (11.7) | 64.5 (14.2) | <0.01 |
| BMI (Kg/m2) | 22.8 (2.9) [20.9–24.2] | 23.4 (3.5) | 22.6 (2.7) | 0.07 | 23.7 (3.5) | 22.0 (2.8) | 21.0 (1.7) | 22.9 (2.7) | 24.4 (3.0) | <0.01 |
| BSA (m2) | 1.78 (0.19) [1.65–1.88] | 1.86 (0.2) | 1.75 (0.17) | <0.01 | 1.9 (0.2) | 1.7 (0.2) | 1.7 (0.1) | 1.8 (0.2) | 1.7 (0.2) | <0.01 |
| Heart Rate (bpm) | 59 (10.1) [61–76] | 61 (9.9) | 59 (10.1) | 0.1 | 73.5 (11.5) | 66.5 (13.0) | 67.1 (8.5) | 68.5 (12.1) | 70.7 (15.6) | 0.07 |
| SBP (mm Hg) | 118.1 (10.1) [111–125] | 118.7 (10.2) | 118.1 (10.0) | 0.6 | 120.8 (10.8) | 115.3 (9.7) | 120.2 (9.0) | 118.6 (9.9) | 113.9 (9.9) | 0.01 |
| DBP (mm Hg) | 71.1 (7.5) [66–76] | 71.4 (7.0) | 71.1 (7.6) | 0.7 | 72.2 (7.8) | 70.5 (8.3) | 70.4 (6.0) | 71.3 (7.2) | 68.9 (8.8) | 0.5 |
bpm = beat per minute; IQR = interquartile range; SD = standard deviation; y = years.
*
n = 44; softball = 22, volleyball = 22.
†
n = 60; soccer = 42, track (distance)/cross country = 18.
‡
n = 23; field (jumping) = 4 track (sprint) = 19.
§
n = 184; swimming = 83, track (mid-distance) = 4, basketball = 57, lacrosse = 40.
¶
n = 18; gymnastics = 14, field (throwing) = 4.