(L/min) were used to calculate substrate oxidation rate (g/min) by using the Peronnet and Massicotte selleck chemicals equation [17]: Biochemical assay Blood samples were collected from the antecubital vein and immediately transferred into EDTA-treated tubes. The tubes were then centrifuged at 3,000 g for 10 minutes to remove red blood cells and recover serum. The serum obtained was used 4EGI-1 manufacturer to analyze TC, HDL, LDL, TG, and glucose levels using standard

automated laboratory methods (Roche Integra 800, Basel, Switzerland) and to analyze insulin by using the radioimmunoassay technique. These methods are routinely used in Srinagarind Hospital, Faculty of Medicine, Khon Kaen University. The plasma was used to analyze vitamin C levels

with using Zhang’s method [18]. Statistical analyses Data were analyzed using the SPSS statistics software package, version 13. Differences between supplements and groups were tested by two-way analysis of variance (repeated measurement). All data are expressed as means ± SD except when stated elsewhere. All differences are considered significant at P< 0.05. Results Baseline anthropometric and physiological parameters of all subjects are shown in Table 1. The trained group had significantly higher values of and work ratemax and lower values of fat percentage and fat mass than the untrained group. Table 1 Anthropometric and physiological characteristics

of subjects   Untrained group (n = 10) Trained group (n = 10) P value Age (yr) 20 ± 2.7 21 ± Dinaciclib mw 1 NS Body mass (kg) 67.7 ± 14.2 67.2 ± 10.2 NS Height (m) 1.69 ± 0.1 1.72 ± 0.1 NS BMI (kg/m2) 23 ± 3.0 22.7 ± 2.4 NS Waist circumference (cm) 75.3 ± 10.5 75.5 ± 4.7 NS Hip circumference (cm) 94.9 ± 8.1 93.3 ± 4.9 NS W/H ratio 0.79 ± 0.1 0.81 ± 0.3 NS Body fat (%) 21.9 ± 8.1 16.2 ± 6.6 NS Fat mass (kg) 14.3 ± 5.6 13.8 ± 8.3 NS Fat free mass (kg) 51.4 ± 5.8 53.4 ± 5 NS (ml/kgBM/min) 31.2 ± 8.5 45.6 ± 4.1 0.000 (ml/kgBM/min) (ml/kgFFM/min) 41.2 ± 9.3 58.5 ± 4.9 0.000 (ml/kgFFM/min) Work ratemax (watts) 136 ± 14.3 178 ± 13.9 0.000 Values are mean ± SD, n = 10 in each group. BM, body mass; BMI, body mass 4��8C index; W/H, waist to hip circumference ratio; , peak oxygen consumption; , maximal oxygen consumption; FFM, fat free mass; Work ratemax, maximal work rate. P value, significantly different from the untrained group; NS, not significant. Before and after both supplementation periods, the trained group had significantly higher , total EE, work ratemax and work rate 85% and lower fat mass than the untrained group, without any differences in percentage of , HRmax, RER, RPD, RPE, or HR during exercise. Interestingly, the trained group showed a greater fat oxidation rate than the untrained group only after the 4-week ingestion of the CAJ (0.23 vs 0.16 g/min; p<0.05) (Figure 1).