RELIABILITY AND SENSITIVITY OF COUNTERMOVEMENT JUMP-DERIVED VARIABLES IN DETECTING DIFFERENT FATIGUE LEVELS
ABSTRACT The aim was to verify the reliability and sensitivity of countermovement jump (CMJ) derived variables in detecting small, moderate and large changes and whether the capacity of CMJ-derived variables in detecting fatigue is dependent of the volume of the fatiguing exercise. Seventeen physically active men performed two fatigue protocols, on separate weeks, composed by continuous vertical jumps: short protocol (7 x 10 jumps) and long protocol (14 x 10 jumps). Jump height (JH), power output (PO), impulse (IMP) and vertical stiffness (KVERT) were measured during CMJ prior to and immediately after the fatigue protocols. Intraclass coefficient correlation, typical error, smallest worthwhile change and magnitude-based inference were analyzed. PO and JH presented excellent reliability and good sensitivity to detect small and medium changes, respectively. Negative effects of fatigue could be detected most likely by PO, regardless of fatiguing exercise volume. JH and IMP seem to be affected only after long protocol and KVERT only after short protocol. In conclusion, PO (peak and mean) is the better marker in CMJ with excellent reliability and sensibility, which allows detect even the small effects and differentiate the fatigue levels.
Main Authors: | Knihs,Débora Aparecida, Detanico,Daniele, Silva,Daniel Rocha da, Pupo,Juliano Dal |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Universidade Estadual de Maringá
2021
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-24552021000100220 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Acute fatigue effects on ground reaction force of lower limbs during countermovement jumps
by: Fábrica,Carlos Gabriel, et al.
Published: (2013) -
Effect of squat depth on performance and biomechanical parameters of countermovement vertical jump
by: Gheller,Rodrigo Ghedini, et al.
Published: (2014) -
The cycle ergometer test is not a reliable alternative to the countermovement jump in the assessment of power output
by: Peyper,KR, et al.
Published: (2022) -
LOAD THAT MAXIMIZES POWER OUTPUT IN COUNTERMOVEMENT JUMP
by: Jimenez-Reyes,Pedro, et al.
Published: (2016) -
Caffeine supplementation improves countermovement jump in youth soccer players: a pilot study
by: Hernández-Camacho,Juan Diego, et al.
Published: (2017)