Acute Effects of Isometric Conditioning Activity with Different Rest Intervals Between Sets on Countermovement Jump Performance in Resistance-Trained Participants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11510%2F25%3A10506121" target="_blank" >RIV/00216208:11510/25:10506121 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=f5BaK3v_vG" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=f5BaK3v_vG</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/app152211989" target="_blank" >10.3390/app152211989</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Acute Effects of Isometric Conditioning Activity with Different Rest Intervals Between Sets on Countermovement Jump Performance in Resistance-Trained Participants

Popis výsledku v původním jazyce

This study investigated the acute effects of different rest intervals between sets of isometric conditioning activity (ICA) on countermovement jump (CMJ) performance. Fifteen resistance-trained males completed four conditions: three ICA protocols with 1, 2, or 3 min rest intervals between sets and a control condition (CTRL). ICA was performed in the half-squat position at a 90 degrees knee angle against an immovable barbell, with each protocol consisting of three sets of short maximal voluntary isometric contractions (3 x 3 s per set). CMJ performance was assessed before and at 3, 6, 9, and 12 min after ICA or CTRL. The results showed no significant effects of the ICA or rest interval on CMJ height or relative peak power. However, independent of rest duration, ICA induced transient alterations in jump mechanics, characterized by decreased stiffness at 9 min and reduced eccentric peak velocity at 6-12 min post-ICA. Similar fluctuations were observed in the CTRL condition, suggesting that these changes may reflect time-dependent variability rather than specific potentiation effects. In conclusion, the studied ICA protocols did not enhance CMJ height or power output, and the length of the rest interval did not influence the outcomes, indicating limited applicability of this approach in resistance-trained males.

Název v anglickém jazyce

Acute Effects of Isometric Conditioning Activity with Different Rest Intervals Between Sets on Countermovement Jump Performance in Resistance-Trained Participants

Popis výsledku anglicky

This study investigated the acute effects of different rest intervals between sets of isometric conditioning activity (ICA) on countermovement jump (CMJ) performance. Fifteen resistance-trained males completed four conditions: three ICA protocols with 1, 2, or 3 min rest intervals between sets and a control condition (CTRL). ICA was performed in the half-squat position at a 90 degrees knee angle against an immovable barbell, with each protocol consisting of three sets of short maximal voluntary isometric contractions (3 x 3 s per set). CMJ performance was assessed before and at 3, 6, 9, and 12 min after ICA or CTRL. The results showed no significant effects of the ICA or rest interval on CMJ height or relative peak power. However, independent of rest duration, ICA induced transient alterations in jump mechanics, characterized by decreased stiffness at 9 min and reduced eccentric peak velocity at 6-12 min post-ICA. Similar fluctuations were observed in the CTRL condition, suggesting that these changes may reflect time-dependent variability rather than specific potentiation effects. In conclusion, the studied ICA protocols did not enhance CMJ height or power output, and the length of the rest interval did not influence the outcomes, indicating limited applicability of this approach in resistance-trained males.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30306 - Sport and fitness sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Sciences

ISSN

2076-3417

e-ISSN

2076-3417

Svazek periodika

15

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

11989

Kód UT WoS článku

001623419600001

EID výsledku v databázi Scopus

2-s2.0-105022884655