Details

Autor(en) / Beteiligte

• Sauza, Alexander Geronimo

Titel

Reliability of the Unilateral Countermovement Jump and Bilateral Countermovement Jump in Detecting Interlimb Asymmetries Within Collegiate Dancers

Ort / Verlag

ProQuest Dissertations & Theses

Erscheinungsjahr

2023

Link zum Volltext

• ProQuest

Quelle

ProQuest Dissertations & Theses A&I

Beschreibungen/Notizen

• There has been a growing body of research looking into the assessment of interlimb asymmetries. Interlimb asymmetries refers to the differences in strength from one limb compared to the other. There are several ways to measure interlimb asymmetries, including jump testing, strength testing, and sport specific tasks. The purpose of this study was to assess the reliability of two types of jump testing, the bilateral and unilateral countermovement jump (CMJ), in detecting interlimb asymmetries for propulsive force, propulsive impulse, braking force, and braking impulse. Twenty-one female collegiate dancers (n=21) participated in this study. Subjects performed three weeks of bilateral countermovement jumps followed by three weeks of unilateral countermovement jumps, twice per week on Hawkin Dynamic dual force plates. Results of this study showed unacceptable reliability for both the unilateral (CV=72.18-77.29) and bilateral (CV=31.59-36.37) countermovement jump. Pearson’s correlation revealed strong to moderate relationships for all variables except for braking force/propulsive force and braking impulse/propulsive force for the unilateral CMJ. A paired samples t-test revealed no significant differences between propulsive force and propulsive impulse (p>0.05) but a significant difference between braking impulse and braking force (p<0.05). While the results of this study do not fully align with previous research, the bilateral CMJ may be a better test at assessing interlimb asymmetries compared to the unilateral CMJ.