Self-selected Rest Interval Improves Vertical Jump Postactivation Potentiation

Abstract

This study compared the effects of self-selected rest interval and fixed rest interval strategies on post-activation potentiation (PAP) in countermovement jump (CMJ) performance. Twelve strength-trained male's (age: 25.4 ± 3.6 years; body mass: 78.8 ± 10.5 kg; height: 175 ± 7.0 cm; half-squat 1RM: 188.7 ± 33.4 kg) performed three experimental conditions: 1) fixed rest interval (FRI: CMJ test; 4-min rest interval; 5RM back squat; 4-min rest interval; CMJ test), 2) self-selected rest interval (SSRI: CMJ test; 4-min rest interval; 5RM back squat; SSRI; CMJ test), and 3) control (C: CMJ test; 8-min rest interval; CMJ test). In SSRI, participants were instructed to rest until they felt fully recovered and able to exercise at maximal intensity based on the perceived readiness scale (PR). Significant changes in pre-post CMJ performance were observed in the SSRI condition (38.2 ± 4.6 cm vs 40.5 ± 4.4 cm; p = 0.08; CI: 0.72 to 3.82 cm; ES = 0.93). There were significant differences in post CMJ performance when SSRI was compared to FRI (40.5 ± 4.4 cm vs 37.7 ± 5.1 cm; p = 0.02; CI 0.43 to 5.08; ES = 1.13) and C (40.5 ± 4.4 cm vs. 37.4 ± 5.7 cm; p = 0.01; CI: 0.66 to 5.61; ES = 1.35). The average rest interval length for the SSRI condition was 5:57 ± 2:44 min:sec (CI: 4:24 to 7:30). Our results suggest the use of SSRI was an efficient and practical strategy to elicit PAP on CMJ height in strength-trained individuals.

The Effects of Plyometric Conditioning Exercises on Volleyball Performance with Self-Selected Rest Intervals

“…Therefore, females may also show a different level of perception of fatigue from males; however, this is speculation and therefore further studies are warranted. Third, the participants in the do Carmo et al [27] study showed significantly higher levels of relative muscle strength (~2.4) than those in the Santos et al [28] study (~1.9 kg/kg body mass (b.m.) as well as ours (~1.16 kg/kg b.m.)…”

“…First, the participants in our study self-selected average intracomplex rest intervals of 262 ± 66 s for the attack jump and 197 ± 110 s for the standing spike attack (Figure 1); however, as shown by Seitz and Haff [19], intervals above 5 min are needed to enhance a greater PAPE effect than a shorter rest interval. In the case of the study by do Carmo et al [27] in which the half squat exercise improved the countermovement jump performance with self-selected intra-complex rest intervals, the participants chose a longer rest interval time of 357 ± 164 s. It can therefore be assumed that the PAPE effect was not elicited because most likely fatigue exceeded the accompanying potentiation caused by the CA applied.…”

“…Previously applied research protocols mainly fixed intra-complex rest intervals to single or various time points to verify the effectiveness of a particular CA [25,26] without allowing for adjustments based on the day-to-day variability, readiness to perform or perception of effort and fatigue. Do Carmo et al [27] demonstrated that individually determined rest intervals were more effective than fixed intervals in enhancing countermovement jump performance among strength-trained males. While Santos et al [28] did not find any differences in countermovement jump performance between 5 min, 10 min and self-selected intra-complex rest intervals among taekwondo athletes.…”

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

“…Moreover, potentiation is the result of the balance between the mechanisms of PAPE and fatigue [6,7]. Whereas numerous studies [13][14][15]17,18] have investigated the effect of different factors that can codify this balance (e.g., volume, intensity and rest interval), the optimal work-to-rest ratios within each conditioning activity have not yet been determined in the scientific literature, especially regarding performance specific to combat sports. Due to the intermittent nature of taekwondo, alternating effort and rest times using specific ratios can be a very important factor that can affect subsequent specific performances [19].…”

Influence of Counter Movement Jump Session with Different Rest Intervals on Muscle Damage and Soreness

“…Although the study by Do Carmo et al [15] is a welldesigned study, it is not supported by other robust evidence. Therefore, we decided on the 1-and 3-minute intervals because the rest time was sufficient/insufficient to restore the creatine phosphate reserves [7,13].…”