TABLE 2.
Basic characteristics of the included literature.
| Study | Country | Duration, (weeks) | Sample | Mean age | Exercise category | Summary description of exercise intervention, frequency, intensity, time, and type (F.I.T.T) | Outcome measures reported |
|---|---|---|---|---|---|---|---|
| Shaibi et al. (2006) | United States | 16 | 11 | 15.6 ± 0.5 | CON | no exercise | Weight, BMI, BFP, FM, FFM |
| 11 | 15.1 ± 0.5 | RT-HI | 2 d/week; week1–4: 62–71% of 1RM; weeks 5∼10: 74–88% of 1RM; weeks11∼16: 92–97% of 1RM; less than 60 min; periodized resistance exercise | ||||
| Wong et al. (2008) | Singapore | 12 | 12 | 14.3 ± 1.5 | CON | no exercise | Weight, BMI, BPF, FM, FFM |
| 12 | 13.8 ± 1.1 | COM-M | 2 d/week; 65%–85% HRmax and 55%–65% 1RM; 55 min; aerobic exercise and resistance training | ||||
| Karacabey (2009) | Turkey | 12 | 20 | 11.2 ± 0.8 | CON | no exercise | Weight, BMI |
| 20 | 11.8 ± 0.5 | AE-M | 3 d/week; 60%–65%HRR; 65 min; walking–jogging exercise | ||||
| Farpour-Lambert et al. (2009) | Switzerland | 12 | 22 | 8.8 ± 1.6 | CON | no exercise | Weight, BMI, BPF, FFM |
| 22 | 9.1 ± 1.4 | AE-M | 3 d/week; 55%–65% HRmax; 60 min; aerobic exercise | ||||
| Lee et al. (2010) | Korea | 10 | 18 | 13.3 ± 1.2 | CON | no exercise | BMI |
| 16 | 12.8 ± 1.5 | AE-HI | 3 d/week; 60%–80% VO2max and 70%–90% HRmax; 60 min; aerobic exercise | ||||
| 20 | 13.9 ± 1.2 | COM-M | 3 d/week; 70%–80% maximum strength; 60 min; circuit weight training and aerobic exercise | ||||
| Saygın (2011) | Turkey | 12 | 19 | 10–12 a | CON | no exercise | Weight, BMI, BPF |
| 20 | AE-M | 3 d/week; 50%–60% HRmax; 60–90 min; aerobic exercise | |||||
| Song et al. (2011) | Korea | 12 | 10 | 12.6 ± 0.2 | CON | no exercise | Weight, BMI, BPF, FM, FFM |
| 12 | 12.7 ± 0.2 | AE-M | 3 d/week; 60%–70% HRmax; 50 min; aerobic exercise | ||||
| Lee et al. (2012) | Korea | 12 | 13 | 14.8 ± 1.4 | CON | no exercise | Weight, BMI, FM, FFM |
| 16 | 15.2 ± 1.9 | AE-M | 3 d/week; 50%–75% VO2max; 60 min; treadmills, ellipticals, or stationary bikes | ||||
| 16 | 14.6 ± 1.5 | RT-M | 3 d/week; 60% 1RM; 60 min; whole-body exercises | ||||
| Regaieg et al. (2012) | Tunisia | 16 | 14 | 10.6 ± 0.7 | CON | no exercise | Weight, BMI, BPF |
| 14 | 10.9 ± 0.6 | AE-HI | 1 day/week; 70%–85% HRmax; 60 min; combination of games and sports activities | ||||
| Lee et al. (2013) | Korea | 12 | 15.0 ± 2.2 | CON | no exercise | Weight, BMI, BPF | |
| 16 | 14.6 ± 1.9 | AE-M | 3 d/week; 50%–75% VO2max; 60 min; treadmills | ||||
| 16 | 14.8 ± 1.9 | RT-M | 3 d/week; 60% 1RM; 60 min; whole-body exercises | ||||
| Alberga et al. (2013) | Canada | 12 | 7 | 10 ± 2 | CON | no exercise | Weight, BMI, FM, BPF, FFM |
| 12 | 10 ± 1 | RT-M | 2 d/week; 65%–85% 1RM; 75 min; resistance exercise | ||||
| Jeon et al. (2013) | Korea | 12 | 7 | 12.4 ± 0.7 | CON | no exercise | Weight, BMI, FM, BPF |
| 8 | 13.1 ± 0.5 | COM-M | 2 d/week; 55%–75% HRmax walking exercise and 70% 1RM rubber band exercise; 85 min | ||||
| Sigal et al. (2014) | Canada | 22 | 76 | 15.6 ± 1.3 | CON | no exercise | FM. BPF, FFM |
| 75 | 15.5 ± 1.4 | AE-HI | 4 d/week; 65%–85% HRmax; 20 min–45 min; treadmills, elliptical machines, or bicycle ergometers | ||||
| 78 | 15.9 ± 1.5 | RT-HI | 4 d/week; 2 sets×15 repetitions at moderate intensity and 3 sets of 8 repetitions at the maximum resistance; 20 min–45 min | ||||
| 75 | 15.5 ± 1.3 | COM-HI | 4 d/week; full aerobic training program plus the resistance training program; 20 min–45 min | ||||
| Youssef et al. (2015) | Lebanon | 12 | 9 | 16.3 ± 0.5 | CON | no exercise | Weight, BMI, BPF, FFM |
| 14 | 16.1 ± 0.3 | AE-HI | 3 d/week; 75%–75% HRR; 90 min; aerobic exercise and interval training | ||||
| Monteiro et al. (2015) | Brazil | 20 | 16 | 11.04 ± 1.9 | CON | no exercise | Weight, BMI, FM, BPF, FFM |
| 18 | 11.0 ± 1.02 | AE-HI | 3 d/week; 65%–85%VO2max; 50 min; walking and running | ||||
| 14 | 11.03 ± 1.34 | COM-HI | 3 d/week; 65%–85%VO2max for aerobic exercise and 55%–75% RM for resistance training; 60 min; 50% of resistance training followed by 50% of the aerobic exercise | ||||
| Tan et al. (2016) | China | 10 | 13 | 9.4 ± 0.9 | CON | no exercise | Weight, BMI, FM, BPF, FFM |
| 11 | 9.4 ± 1.3 | AE-M | 5 d/week; HR of FATmax intensity; 60 min; walking, running, and ball game | ||||
| Vasconcellos et al. (2015) | Brazil | 12 | 10 | 14.8 ± 1.4 | CON | no exercise | Weight, BMI, BPF |
| 10 | 14.1 ± 1.3 | AE-HI | 3 d/week; 84.5% ± 4.1% HRmax; 60 min; recreational soccer program | ||||
| Racil et al. (2016) | Tunisia | 12 | 14 | 14.2 ± 1.2 | CON | no exercise | Weight, BPF |
| 16 | AE-M | 3 d/week; 80% maximal aerobic speed; 60 min; moderate-intensity interval training | |||||
| 17 | AE-HI | 3 d/week; 100% maximal aerobic speed; 60 min; high-intensity interval training | |||||
| Giovanni et al. (2017) | Italy | 16 | 12 | 12.21 ± 0.43 | AE-M | 3 d/week; 45%–50% HRR; 60 min; cycle-ergometers and treadmills | Weight, BMI, BPF, FFM |
| 15 | 12.73 ± 0.70 | RT-M | 3 d/week; 13-RM; 60 min; isotonic machines | ||||
| 14 | 12.67 ± 0.65 | RT-HI | 3 d/week; 9-RM; 60 min; isotonic machines | ||||
| Tan et al. (2017) | China | 10 | 21 | 5.1 ± 0.4 | CON | no exercise | Weight, BMI, FM, BFP, FFM |
| 21 | AE-M | 5 d/week; 50% HRR; 60 min; quick walking, slow running, jumping, rope skipping, semi-squatting | |||||
| Khammassi et al. (2018) | Tunisia | 12 | 10 | 17.4 ± 1.1 | CON | no exercise | Weight, BMI, BPF |
| 10 | 17.8 ± 0.7 | AE-HI | 3 d/week; alternate 30 s of running at 100% of MAV and 30 s of active recovery at 50% of MAV; 50 min; running | ||||
| Dias et al. (2018) | Australia | 12 | 34 | 11.8 ± 2.4 | CON | no exercise | Weight, BMI, FM, BPF, FFM |
| 32 | 11.9 ± 2.4 | AE-M | 3 d/week; 60%–70% HRmax; 44 min; moderate-intensity continuous training | ||||
| 33 | 12.4 ± 1.9 | AE-HI | 3 d/week; 85%–95% HRmax; 40 min; high-intensity interval training | ||||
| Cvetković et al. (2018) | Serbia | 12 | 14 | 11–13 a | CON | no exercise | Weight, BMI, FM, BPF, FFM |
| 10 | AE-HI | 3 d/week; 60 min; 75%–90% HRmax; Football training | |||||
| Wong et al. (2018) | Korea | 12 | 15 | 15.3 ± 1.1 | CON | no exercise | Weight, BMI, BPF |
| 15 | 15.2 ± 1.2 | COM-M | 3 d/week; 40%–70%HRR; 60 min; resistance band exercise and treadmill walking | ||||
| Martín-García et al. (2019) | Spain | 12 | 28 | 11.1 ± 2.6 | CON | no exercise | Weight, BMI, BPF, FM, FFM |
| 19 | 11.5 ± 2.4 | AE-HI | 2 d/week; 75.5% HRmax; 90 min; aerobic games and some strength exercises | ||||
| Deldin et al. (2019) | United States | 12 | 27 | 15.1 ± 1.7 | AE-M | 3 d/week; 50%–75%VO2max; 60 min; treadmills, ellipticals, or stationary bikes | Weight, BMI |
| 28 | 14.8 ± 1.5 | RT-M | 3 d/week; whole body resistance training (1–2 sets, 8–12 repetitions); 60 min; weight machines | ||||
| Kim et al. (2019) | Korea | 12 | 24 | 15 ± 1 | CON | no exercise | Weight, BMI, BPF |
| 24 | 15 ± 1 | AE-M | 5 d/week; 40%–70% HRR; 50 min; jump rope exercise | ||||
| Duft et al. (2020) | Brazil | 12 | 19 | 14.7 ± 1.1 | CON | no exercise | Weight, BMI, FM, BPF |
| 18 | 14.4 ± 1.4 | COM-M | 3 d/week; 60% VO2max; 60 min; resistance training and aerobic training | ||||
| Said et al. (2021) | Saudi Arabia | 12 | 15 | 17.74 ± 1.42 | CON | no exercise | Weight, BMI, BPF |
| 15 | AE-M | 4 d/week; 50%–70% HRmax; 60 min; treadmills, ellipticals, or stationary bikes | |||||
| 16 | RT-M | 4 d/week; 50%–75% 1RM; 60 min; resistance training | |||||
| 15 | COM-M | 4 d/week; 50%–70% HRmax for aerobic exercise and 50%–75% 1RM for resistance training; 60 min; 50% of resistance training and 50% of the aerobic exercise | |||||
| Bouamra et al. (2022) | Tunisia | 9 | 12 | 12.8 ± 0.9 | AE-HI | 3 d/week; 80%–110% VO2max; running; 60 min | Weight, BMI, BPF, FM, FFM |
| 12 | 12.7 ± 0.9 | RT-HI | 3 d/week; 3–4 sets × 10 RM; thera-band; 60 min | ||||
| 13 | 13.2 ± 0.9 | COM-HI | 3 d/week; 80%–110% VO2max for aerobic exercise and 2 sets × 10 RM for resistance training; 60 min; 50% of resistance training and 50% of the aerobic exercise | ||||
| Cao et al. (2022) | China | 12 | 13 | 11.0 ± 0.7 | CON | no exercise | Weight, BMI, FM, BPF, FFM |
| 11 | 11.2 ± 0.7 | AE-M | 3 d/week; 60%–70% HRmax; 30–40 min; moderate-intensity continuous training | ||||
| 12 | 11.4 ± 0.8 | AE-HI | 3 d/week; 80%–90% HRmax; 30–40 min; high-intensity interval training | ||||
| Salus et al. (2022) | Estonia | 12 | 14 | 13.7 ± 0.4 | CON | no exercise | Weight, FM, BPF, FFM |
| 14 | 13.1 ± 0.3 | AE-HI | 3 d/week; 79.8%–81.7% HRmax; 29–38 min; all-out sprint interval training |
BMI, body mass index; BFP, body fat percentage; FM, fat mass; FFM, fat-free mass; AE-M, moderate-intensity aerobic exercise; AE-HI, high-intensity aerobic exercise; RT-M, moderate-intensity resistance exercise; RT-HI, high-intensity resistance exercise; COM-M, moderate-intensity combined exercise; COM-HI, high-intensity combined exercise; CON, blank controls; VO2max, maximal oxygen uptake; reps, repetitions; RM, repetition maximum; HRmax, maximum heart rate; HRR, heart rate reserve.
Age range for entire study sample not mean (SD).