Results
fatigue
Descriptive characteristics (including mean and standard deviation) are reported in The functional variables (mean ± standard deviation) measured in the four different experimental conditions.Baseline-CMR: Baseline coffee mouth-rinsing, FIET: Futsal intermittent endurance test, IA-FIET: immediately after the FIET, 5”A-FIET: 5 minutes after the FIET, 10”A-FIET: 10 minutes after the FIET, LDC: low dose coffee. HDC: High dose coffee, PLA: Placebo, CON: Control. VAS: visual analogue scale, VJH: vertical height jump.A significant main effect was observed on FIET performance (F = 60.81, Performance of participants in the FIET. LDC: low dose coffee. HDC: High dose coffee, PLA: Placebo, CON: Control. FIET: Futsal intermittent endurance test. C Significant difference compared to control condition (P < 0.05); L Significant difference compared to LDC (P < 0.05). P Significant difference compared to PLA (P < 0.05).Two-way repeated measure ANOVA showed that the main effect of time [F = 22.7, Vertical jump height of participants in different conditions. Baseline: Nutritional intervention has not been done, Baseline-CMR: Baseline coffee mouth-rinsing, FIET: Futsal intermittent endurance test, IA-FIET: immediately after the FIET, 5”A-FIET: 5 minutes after the FIET, 10”A-FIET: 10 minutes after the FIET, LDC: low dose coffee. HDC: High dose coffee, PLA: Placebo, CON: Control. * Significant difference compared to Baseline (P < 0.05)),† Significant difference compared to baseline-CMR (P < 0.05), # Significant difference compared to IA-FIET (P < 0.05 C Significant difference compared to CON (P < 0.05), L Significant difference compared to LDC (P < 0.05). P Significant difference compared to PLA (P < 0.05).Baseline-CMR compared to baseline showed that HDC, LDC, and PLA increased vertical jump height (Comparison of time series of perceived fatigue and vertical jump height in four experimental conditions.Baseline-CMR: Baseline coffee mouth-rinsing, FIET: Futsal intermittent endurance test, IA-FIET: immediately after the FIET, 5”A-FIET: 5 minutes after the FIET, 10”A-FIET: 10 minutes after the FIET, LDC: low dose coffee. HDC: High dose coffee, PLA: Placebo, CON: Control.The main effect of time [F = 1911.5, Perceived fatigue (measured by VAS) of participants in different conditions. IA-FIET: immediately after FIET, 5”A-FEIT: 5 min after FIET, 10”AF: 10 min after FIET. LDC: low dose coffee, HDC: High dose coffee, PLA: Placebo, CON: Control. * Significant difference compared to Baseline (P < 0.05), # Significant difference compared to IA-FIET (P < 0.05), $ Significant difference compared to 5’A-FEIT (P < 0.05).