Table 2.
Association of circulating irisin with physical activity and exercise training and dietetic interventions.
| Author | Sample | Intervention | Correlation | Results | |
|---|---|---|---|---|---|
| Jang 2017 [8] | n = 618 (316 boys) Korea 12–15 y-o. NW (n = 370), OB (n = 248) | No Intervention | + | In NW girls | |
| + | In NW active | ||||
| Elizondo-Montemayor 2017 [4] | n = 40 (20 boys) Mexico 6–12 y-o. UW (n = 5), NW (n = 5), OW (n = 5), OB (n = 5). | Reported aerobic exercise (days per week and hours per day) | − | With days per week | |
| - | With hours per day | ||||
| Löffler 2015 [11] | n = 29 (11 boys) Germany 8–21 y-o. OB (n = 10 (2 boys)). | 15-min maximum cycle ergometer | + | In all subjects | |
| n = 58 OB (23 boys) Germany 7–17 y-o. | 4–6 weeks of nutritional and aerobic training | +/− | In boys | ||
| n = 88 Germany 11–12 y-o. CO [n = 29 (12 boys)], IN (n = 34 (20 boys)), CS (n = 25 (16 boys)) | Intervention group increased one unit of sports activities for 3 years | 0 | No difference among groups | ||
| Blizzard LeBlanc 2017 [26] | n = 11 OB (6 boys) Canada 15–16 y-o. | Acute bouts of exercise: | Aerobic: 45 min at 60% HRR | + | In all subjects |
| Resistance: 45 min at 60–65% 1RM 12–15 reps | 0 | In all subjects | |||
| Palacios-González 2015 [6] | n = 85 (40 boys) Mexico 8–10 y-o. NW (n = 25), OW (n = 23), OB (n = 37). | 5-min warm-up and 25-min aerobic activity at 75% HRMax, 8 months, 5 days/week | − | In all subjects | |
| Blüher 2014 [27] | n = 65 Germany OW/OB (35 boys) 7–18 y-o. | 39 session over 1 year of 150 min/week of combined endurance and resistance exercise plus diet counseling | + | In all subjects | |
| Reinehr 2015 [10] | n = 60 Germany 10-15 y-o NW (n = 20 (10 boys)), OB (n = 40 (20 boys)). | Exercise sessions once per week plus nutrition education for 4–6 weeks | 0 | In OB children who lost weight | |
| + | In OB children who did not lose weight | ||||
| Singhal 2014 [12] | n = 85 women (81 Caucasian and Asian, 11 mixed-race, 5 Black) 14–21 y-o. AA (n = 38), EA (n = 24), NA (n = 23). | No intervention | − | In AA | |
| 0 | In EA and NA | ||||
AA (amenorrheic athletes), CO (Control), CS (Competitive sports), DBP (Dystolic Blood Pressure), EA (eumenorrheic athletes), HRmax (maximum heart rate), HRR (heart rate reserve), IN (Intervention), Ir (irisin), NA (non-athletes), NW (normal weight), OB (obese), OGTT (oral glucose tolerance test), OW (overweight), RM (repetition maximum), UW (underweight) WC (waist circumference), + (positive correlation), − (negative correlation), 0 (no correlation).