Figures & data
Table 1 Basic data of the study subjects (mean ± SD)*
Figure 1 Study protocol. After receipt of the informed consent from the subjects, measurements of study parameters were performed at time point 1, 2 and 3. After approximately 1 week of α-keto acid supplement (KAS), blood samples were collected for medical monitoring.
Table 2 Training data (mean ± SD)
Figure 2 The total training time (minutes) each week in mean ± SD (endurance training time + sprint running time). AKG: α-keto glutarate; BCKA: branched-chain keto acids.
Figure 3 The peak maximal isometric torque (Newton meter) in mean ± SD. AKG: α-keto glutarate; BCKA: branched-chain keto acids.
Figure 4 The peak isokinetic performance (Watts) in mean ± SD. AKG: α-keto glutarate; BCKA: branched-chain keto acids.
Figure 5 The weekly data from the recovery-stress questionnaire (RESTQ-scores) for general stress (A), somatic complaints (B), emotional exhaustion (C) and disturbed breaks (D). AKG: α-keto glutarate; BCKA: branched-chain keto acids. RESTQ-Scores 0: never; RESTQ-Scores 5: always.
