Validity of an Inexpensive Hanging Scale During Isometric Shoulder Movements.
J Sport Rehabil
; 29(8): 1218-1221, 2020 11 01.
Article
en En
| MEDLINE
| ID: mdl-32028259
ABSTRACT
CONTEXT Strength assessment is essential to prescribe exercise in sports and rehabilitation. Low-cost valid equipment may allow continuous monitoring of training. OBJECTIVE:
To examine the validity of a very low-cost hanging scale by comparing differences in the measures of peak force to a laboratory grade load cell during shoulder abduction, flexion, extension, and internal and external rotations.DESIGN:
Analytical study.PARTICIPANTS:
Thirty-two healthy subjects (18 women, age 26 [10] y, height 172 [8] cm, mass 69 [13] kg, body mass index 23 [4] kg/m2). MAIN OUTCOMEMEASURES:
The dependent variable was the maximal peak force (in kilogram-force). The independent variable was the instrument (laboratory grade load cell and hanging scale).RESULTS:
No differences were observed while comparing the results. The intraclass correlation coefficients1,1 ranged from .96 to .99, showing excellent results. The Cronbach alpha test also returned >.99 for all comparisons. The SEM ranged from 0.02 to 0.04 kgf, with an averaged SD from 0.24 to 0.38 kgf. The correlation was classified as high for all tested movements (r > .99; P < .001), with excellent adjusted coefficients of determination (.96 < r2 < .99). Bland-Altman results showed high levels of agreement with bias ranging from 0.27 to 0.48.CONCLUSIONS:
Hanging scale provides valid measures of isometric strength with similar output measures as laboratory grade load cell.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Articulación del Hombro
/
Fuerza Muscular
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Dinamómetro de Fuerza Muscular
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Contracción Isométrica
Límite:
Adolescent
/
Adult
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Female
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Humans
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Male
Idioma:
En
Año:
2020
Tipo del documento:
Article