The purpose of this research is to estimate the anthropometric characteristics and jump performance differences between professional and college volleyball players. Thirteen professional players group (TG) and twenty-eight college volleyball players group (NG) performed anthropometric (i.e., height, standing reach height, body mass) and performance tests (i.e., flexibility, squat jump [SJ], countermovement jump [CMJ], countermovement jump with arms [CMJA], repeated rebound jump [RJ], repeated rebound jump with arm [RJA], standing long jump, standing 3-steps jump and spike jump reach height with one step [SPJ1] and three steps [SPJ3]). RJ-index (RJ-index) was calculated by dividing the jumping height by the corresponding contact time (jumping height / contact time). Anthropometric and performance comparisons between college and professional players were accomplished by unpaired student’s t-tests. A criterion alpha level of p<0.05 was used to determine statistical significance.
    Height (187.2±6.8cm vs. 180.7±8.4cm: p<0.05), standing reach height (243.0±11.6cm vs. 232.3±12.8cm:p<0.05), and body mass (82.0±7.3kg vs. 73.9±5.3kg: p<0.001) were significantly higher in TG than NG. Flexibility (51.8±7.0cm vs. 53.4±11.4cm) was not significant difference between groups. While standing long jump (273.5±16.4cm vs. 261.8±18.4cm) was not significant difference between groups, standing 3-steps jump (793.4±60.2cm vs. 736.1± 45.7cm: p<0.01) was significantly higher in TG than NG. CMJ (50.2±4.9cm vs. 46.7±3.6cm: p<0.05), RJ-index (2.05 ±0.29 vs. 1.79±0.28: p<0.01) and RJA-index (2.40±0.35 vs. 2.07±0.45: p<0.05) were significantly higher in TG than NG. However, SJ (46.1±4.4cm vs. 43.9±3.8cm) and CMJA (60.3±6.9cm vs. 57.2±4.5cm) were not significant difference between groups. SPJ1 relative height (83.9±8.0cm vs. 72.3±7.1cm: p<0.001) and SPJ3 relative height (88.5 ±9.5cm vs. 80.4±8.7cm: p<0.05) in TG were significantly higher than NG.
    These results indicate that anthropometric and stretch-shortening cycle efficiency differences exist between groups.