Table 3. Total energy and macronutrient intake between youth tennis players (U12, U14, U16+) on training and competition days, expressed as absolute and relative values.
U12
U14
U16+
TD
CD
TD
CD
TD
CD
Absolute Energy (kcal)
1965 ± 317
2002 ± 301
2366 ± 122
2224 ± 283
2232 ± 612
2152 ± 807
Relative Energy (kcal·kg-1)
41 ± 10
42 ± 7
45 ± 7
42 ± 9
33 ± 10
32 ± 13
Total CHO (g)
220 ± 56
236 ± 43
270 ± 59
257 ± 62
255 ± 46
260± 103
Relative CHO (g·kg-1)
4.6 ± 1.5
5.0 ± 1.7
5.2 ± 1.7
5.0 ± 1.7
3.7 ± 0.9
3.8 ± 1.6
Total Protein (g)
105 ± 21
97 ± 10
120 ± 33
105 ± 25
117 ± 45
93 ± 40
Relative Protein (g·kg-1)
2.2 ± 0.4
2.1 ± 0.6*
2.2 ± 0.5
2.0 ± 0.6*
1.7 ± 0.7
1.2 ± 0.8*
Total Fat (g)
73 ± 11
74 ± 20
91 ± 9
86 ± 16
75 ± 28
62 ± 21
Relative Fat (g·kg-1)
1.5 ± 0.4
1.5 ± 0.3
1.7 ± 0.2
1.6 ± 0.3
1.1 ± 0.4
0.9 ± 0.3
Values reported as means ± SD. TD = training day; CD = competition day.
* denotes significant main effect between TD & CD intakes (p<0.05).