Season Phase Comparison of Training and Game Volume in Female High School Volleyball Athletes

This study evaluated the differences in training and match volume per set by season phase in female high school volleyball. Twelve athletes wore a device to measure total jumps (TJ) and high jumps (HJ), movements per minute (MPM), kinetic energy expended, and stress percent throughout the season phases: preseason, tournament, and district. In matches, athletes jumped less and had lower MPM in preseason (4.4 ± 2.3 TJ/set, 1.9 ± 0.5 MPM/set) compared with tournament (13.2 ± 8.1 TJ/set, 6.4 ± 1.7 MPM/set) and district (16.5 ± 9.9 TJ/set, 6.7 ± 1.8 MPM/set; p ≤ .001 for all) phases. District registered more HJ/set (2.6 ± 2.2 HJ/set) than preseason (0.7 ± 0.7 HJ/set, p = .007) and tournament phases (292 ± 172 J/lb/set, p < .001), and more kinetic energy expended/set (488 ± 174 J/lb/set) than preseason (201 ± 94 J/lb/set, p = .001). The highest training volume occurred during preseason with more TJ (preseason: 70.9 ± 26.0; tournament: 44.3 ± 19.3, p < .001; district: 34.7 ± 3.4, p = .004) and kinetic energy expended (preseason: 1,645 ± 547 J/lb; tournament: 980 ± 506 J/lb, p = .018; district: 1,108 ± 362, p = .016). Preseason training had higher stress percent (16.6 ± 3.0%) than tournament (19.4 ± 3.7%, p = .004) and more HJ (7.7 ± 6.3%) than district (3.1 ± 2.9%, p = .012). Match volume was unbalanced across the season phases, with preseason showing the lowest volume and district having the highest volume. This was counterbalanced with a higher training volume during the preseason compared with the other phases.