The reliability, variability and minimal detectable change of multiplanar isometric trunk strength testing using a fixed digital dynamometer.
J Sports Sci
; 42(9): 840-846, 2024 May.
Article
de En
| MEDLINE
| ID: mdl-38899738
ABSTRACT
Trunk strength plays a vital role in athletic performance, rehabilitation and general health, however, current assessment methods are expensive, non-portable or unreliable. This study aimed to investigate the within- and between-session reliability, variability, standard error of measurement and minimal detectable change (MDC) of trunk strength in the sagittal (flexion and extension) and frontal planes (left and right lateral flexion) using a fixed digital dynamometer. Eighteen participants (ten men and eight women) attended two sessions separated by 7 days. Participants were fitted with a trunk harness which was secured to an immovable base via a digital dynamometer. Three maximal voluntary isometric contractions were completed across four positions (prone, supine, left-side recumbent and right-side recumbent, respectively) on a glute-hamstring raise machine. All positions demonstrated excellent reliability and low variability within session (ICC 0.95-0.98; CV 5-7%) and between sessions (ICC 0.98-0.99; CV 4-6%), across all positions. The between-session MDC ranged from 8% (prone) to 13% (right-side recumbent), translating to absolute values between 2.9 and 3.2 kg across all positions. Maximal isometric force testing using a fixed digital dynamometer provides reliable measurements of multiplanar trunk strength, providing a practical method for use in clinical practice.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Force musculaire
/
Dynamomètre pour la mesure de la force musculaire
/
Tronc
/
Contraction isométrique
Limites:
Adult
/
Female
/
Humans
/
Male
Langue:
En
Journal:
J Sports Sci
Année:
2024
Type de document:
Article
Pays d'affiliation:
Royaume-Uni