Acute Effects of Different Activity Types and Work-To-Rest Ratio on Post-Activation Performance Enhancement in Young Male and Female Taekwondo Athletes.

The study assessed conditioning activities' (CAs') effects involving different work-to-rest ratios (WRR) on taekwondo athletes' physical performance. Adolescent taekwondo athletes (age: 16 ± 1 years) randomly participated in the control six experimental conditions. Each condition was composed of standard warm-up and CA composed of plyometrics (P) or repeated high-intensity techniques (RHIT) performed using three different WRR: 1:6, 1:7, self-selected rest time (SSRT). After rest, athletes performed countermovement jump (CMJ), taekwondo specific agility test (TSAT), 10 s frequency speed kick test (FSKT-10s), multiple frequency speed kick test (FSKT-mult). P1:7, SSRT induced techniques higher number in FSKT-10s ( p < 0.001 for all comparisons) and lower TSAT time ( p < 0.01 for all comparisons) compared with control. Kicks-number recorded during FSKT-mult was lower in the control compared with RHIT1:6 ( p = 0.001), RHIT1:7 ( p < 0.001), RHITSSRT ( p < 0.05), P1:7 ( p < 0.001), and SSRT ( p < 0.001). Kicking decrement index (DI) during FSKT-mult was lower after RHIT1:6 compared with control ( p = 0.008), RHIT1:7 ( p = 0.031), P 1:6 ( p = 0.014), PSSRT ( p = 0.041). (1) P1:7 and PSSRT can be used to improve taekwondo-specific agility and kicks-number, (2) RHIT1:6 is beneficial to maintain low DI, and (3) plyometric and different WRR-repeated-techniques can enhance kicks-number.