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Table 4 Association between physical activity trajectory of MVPA, moderate- and vigorous intensity at 11, 15 and 18 years with body fat and lean mass index at 18 years stratified by sex. The 1993 Pelotas (Brazil) Birth Cohort

From: Physical activity throughout adolescence and body composition at 18 years: 1993 Pelotas (Brazil) birth cohort study

Trajectories of physical activity 11, 15 and 18 years Fat Mass Index (FMI) Lean Mass Index (LMI)
n Crude n Adjusted† n Crude n Adjusted†
β coefficient (95 % CI) p β coefficient (95 % CI) p β coefficient (95 % CI) p β coefficient (95 % CI) P
Boys MVPA (≥300 min/wk) 1703   *0.04 1368   *0.4 1703   § < 0.001 1368   § < 0.001
 Has never reached 113 0   93 0   113 0   93 0  
 Reached once 406 -0.86 (-1.50; -0.22)   323 -0.42 (-0.93; 0.08)   406 0.80 (0.47; 1.14)   323 0.57 (0.27; 0,87)  
 Reached twice 681 -0.79 (-1.40; -0.18)   546 -0.35 (-0.83; 0.13)   681 0.98 (0.66; 1.30)   546 0.83 (0.54; 1.12)  
 Has always reached 503 -0.87 (-1.50; -0.25)   406 -0.26 (-0.75; 0.24)   503 1.13 (0.81; 1.46)   406 0.99 (0.69; 1.29)  
Moderate-intensity (≥150 min/wk) (>150 min/week) 1731   *0.3 1386   *0.6 1731   § < 0.001 1386   §0.004
 Has never reached 180 0   149 0   180 0   149 0  
 Reached once 555 -0.46 (-0.98; 0.06)   437 0.02 (-0.38; 0.43)   555 0.23 (-0.03; 0.49)   437 0.25 (0.00; 0.50)  
 Reached twice 670 -0.47 (-0.97; 0.04)   542 0.05 (-0.35; 0.45)   670 0.29 (0.04; 0.54)   542 0.29 (0.05; 0.53)  
 Has always reached 326 -0.34 (-0.90; 0.22)   258 0.23 (-0.21; 0.68)   326 0.55 (0.27; 0.83)   258 0.40 (0.13; 0.68)  
Vigorous-intensity (≥75 min/wk) 1727   *0.02 1384   *0.03 1727   § < 0.001 1384   § < 0.001
 Has never reached 174 0   134 0   174 0   134 0  
 Reached once 410 -0.90 (-1.45; -0.36)   323 -0.64 (-1.08; -0.20)   410 0.48 (0.20; 0.75)   323 0.53 (0.27; 0.80)  
 Reached twice 667 -0.86 (-1.36; -0.34)   536 -0.54 (-0.95; -0.13)   667 0.54 (0.28; 0.80)   536 0.62 (0.37; 0.87)  
 Has always reached 476 -0.74 (-1.27; -0.20)   391 -0.53 (-0.96; -0.10)   476 0.88 (0.62; 1.15)   391 0.95 (0.69; 1.21)  
Girls MVPA (≥300 min/wk) 1797   *0.1 1576   *0.3 1797   * < 0.001 1576   * < 0.001
 Has never reached 467 0   405 0   467 0   405 0  
 Reached once 683 0.47 (0.05; 0.89)   597 0.20 (-0.10; 0.50)   683 0.24 (0.07; 0.41)   597 0.13 (-0.02; 0.28)  
 Reached twice 499 0.45 (0.00; 0.90)   441 0.19 (-0.13; 0.52)   499 0.51 (0.33; 0.70)   441 0.34 (0.18; 0.50)  
 Has always reached 148 0.37 (-0.29; 1.03)   133 -0.13 (-0.61; 0.34)   148 0.49 (0.22; 0.76)   133 0.23 (-0.00; 0.47)  
Moderate-intensity (≥150 min/wk) 1820   *0.1 1594   *0.9 1820   * < 0.001 1594   *0.006
 Has never reached 205 0   176 0   205 0   176 0  
 Reached once 522 0.30 (-0.27; 0.88)   457 0.02 (-0.39; 0.44)   522 0.21 (-0.02; 0.45)   457 0.16 (-0.04; 0.37)  
 Reached twice 661 0.43 (-0.13; 0.99)   580 0.07 (-0.33; 0.48)   661 0.51 (0.28; 0.74)   580 0.34 (0.13; 0.54)  
 Has always reached 432 0.68 (0.08; 1.28)   381 -0.05 (-0.48; 0.38)   432 0.50 (0.26; 0.74)   381 0.23 (0.02; 0.45)  
Vigorous-intensity (≥75 min/wk) 1821   *0.7 1595   *0.3 1821   § < 0.001 1595   § < 0.001
 Has never reached 1014 0   873 0   1014 0   873 0  
 Reached once 618 -0.02 (-0.38; 0.33)   549 -0.04 (-0.29; 0.22)   618 0.26 (0.12; 0.40)   549 0.27 (0.14; 0.39)  
 Reached twice 165 -0.32 (-0.91; 0.27)   152 0.04 (-0.37; 0.45)   165 0.28 (0.04; 0.52)   152 0.35 (0.14; 0.56)  
 Has always reached 24 -0.24 (-1.69; 1.21)   21 -0.94 (-1.97; 0.09)   24 1.04 (0.46; 1.63)   21 0.80 (0.29; 1.32)  
  1. *P value of heterogeneity; § P value for trend; † Adjusted for: Asset index, skin color, medicine use for weight loss, weight loss diet, fat intake, BMI, screen time (hours/week) and adolescent schooling at 11 years, physical activity mother and mother's BMI, collected at 11 years and sexual maturation (Tanner stages/pubic hair) collected at 15 year
  2. Has never reached, Reached once, Reached twice and Has always reached = times that reach the thresholds of the ≥300 (min/wk), ≥150 (min/wk) and ≥75 (min/wk) for MVPA, moderate- and vigorous intensity physical activity, respectively, to 11, 15 and 18 years