Table 2 Effects of nitrate supplementation on performance among CrossFit athletes
Performance Test | PL | NO | ||||
|---|---|---|---|---|---|---|
Pre | Post | Δ (%) | Pre | Post | Δ (%) | |
Grace Test (s) | 281.75 ± 41.84 | 270.92 ± 129.16 | −3.84 ± 8.94 | 295.92 ± 170.98 | 263.67 ± 117.74 | −8.94 ± 31.14 |
Isometric Ext.60° (N) | 174.15 ± 27.59 | 184.80 ± 43.41 | 6.11 ± 17.36 | 169.06 ± 36.63 | 186.29 ± 48.67 | 10.19 ± 36.60 |
Isometric Flex. 60° (N) | 119.83 ± 16.62 | 125.53 ± 19.66 | 4.76 ± 18.29 | 116.82 ± 21.35 | 118.95 ± 26.51 | 1.82 ± 24.17 |
Isokinetic Ext. 60° · s−1 (N) | 184.07 ± 48.53 | 179.31 ± 44.09 | −2.59 ± 9.15 | 174.61 ± 41.03 | 167.76 ± 50.14 | −3.92 ± 22.20 |
Isokinetic Flex. 60° · s−1 (N) | 106.40 ± 24.54 | 103.59 ± 25.12 | −2.64 ± 2.36 | 103.73 ± 21.32 | 102.19 ± 26.41 | −1.48 ± 23.87 |
Isokinetic Ext. 180° · s−1 (N) | 120.14 ± 42.32 | 123.28 ± 35.31 | 2.68 ± 16.56 | 120.33 ± 35.98 | 128.21 ± 31.95 | 6.55 ± 11.20 |
Isokinetic Flex. 180° · s−1 (N) | 75.65 ± 27.59 | 76.23 ± 20.43 | 0.77 ± 25.95 | 79.35 ± 14.17 | 79.68 ± 16.00 | 0.42 ± 12.91 |
Wingate Peak (W) | 898.08 ± 183.24 | 905.00 ± 157.23 | 0.77 ± 14.19 | 889.17 ± 179.69 | 948.08 ± 186.80a | 6.62 ± 3.96 |
Wingate Mean (W) | 703.08 ± 101.66 | 736.08 ± 95.31 | 4.69 ± 6.25 | 724.17 ± 109.93 | 737.58 ± 118.93 | 1.85 ± 8.19 |
2 K TT (s) | 465.07 ± 28.45 | 459.87 ± 24.85 | −1.12 ± 12.65 | 457.57 ± 23.56 | 459.73 ± 23.93 | 0.47 ± 1.57 |
2 K TT (s · kg−1) | 392.43 ± 79.51 | 387.26 ± 71.09 | −1.31 ± 10.59 | 384.78 ± 66.59 | 387.40 ± 72.44 | 0.68 ± 8.78 |