Clinical Study

Relationship between Nutrition Knowledge and Physical Fitness in Semiprofessional Soccer Players

Table 2

Anthropometry, body composition, flexibility, and aerobic and anaerobic power of soccer players by nutritional knowledge.

Total ( )Low NK ( )Moderate NK ( )High NK ( )Comparison

Age (yr)21.3 ± 4.919.7 ± 4.1H20.8 ± 4.2H24.1 ± 5.8L,M = 13.1, , = 0.13
Weight (kg)72.3 ± 8.470.1 ± 8.6H72.3 ± 8.574.6 ± 7.3L = 3.9, = 0.021, = 0.04
Height (cm)177.5 ± 6.4176.4 ± 6.3177.1 ± 6.5179.3 ± 6.3 = 2.8, = 0.062, = 0.03
BMI (kg·m−2)22.9 ± 2.022.5 ± 2.223.0 ± 2.123.2 ± 1.6 = 1.7, = 0.182, = 0.02
BF (%)14.5 ± 3.814.6 ± 3.514.5 ± 4.114.4 ± 3.8 < 0.1, = 0.963, < 0.01
FM (kg)10.7 ± 3.710.4 ± 3.410.7 ± 3.910.9 ± 3.6 = 0.2, = 0.780, < 0.01
FFM (kg)61.6 ± 6.259.7 ± 6.3H61.7 ± 6.463.7 ± 5.2L = 5.7, = 0.004, = 0.06
SAR (cm)24.5 ± 7.022.6 ± 7.025.2 ± 6.825.6 ± 7.0 = 3.1, = 0.046, = 0.03
PWC170 (W)205 ± 31201 ± 42207 ± 47205 ± 31 = 0.3, = 0.745, < 0.01
PWC170 (W·kg−1)2.83 ± 0.482.86 ± 0.492.85 ± 0.532.75 ± 0.39 = 0.8, = 0.439, = 0.01
(W)816 ± 122782 ± 112H825 ± 129840 ± 115L = 3.4, = 0.034, = 0.04
(W·kg−1)11.3 ± 1.011.1 ± 0.911.4 ± 1.011.3 ± 1.0 = 1.2, = 0.313, = 0.01
(W)618 ± 86597 ± 88620 ± 84637 ± 84 = 2.8, = 0.063, = 0.03
(W·kg−1)8.54 ± 0.828.51 ± 0.838.57 ± 0.868.52 ± 0.76 = 0.1, = 0.895, < 0.01
FI (%)45.0 ± 6.944.2 ± 5.745.9 ± 7.744.7 ± 6.8 = 1.0, = 0.381, = 0.01

NK = nutritional knowledge, BMI = body mass index, BF = body fat, FM = fat mass, FFM = fat free mass, SAR = sit-and-reach test, PWC170 = physical working capacity in heart rate 170 bpm, = peak power, = mean power, and FI = fatigue index.
Letters H, L, and M when presenting as superscripts denote difference from group with high, low, and moderate nutritional knowledge, respectively.