6533b829fe1ef96bd12898fa

RESEARCH PRODUCT

Reproducibility of isometric strength: measurement of neck muscles

Mikko V. JulinHilkka A. VirtapohjaAsghar RezasoltaniJari YlinenEsko Mälkiä

subject

AdultMalemedicine.medical_specialtyAdolescentBiophysicsIsometric exerciseSensitivity and SpecificityPhysical medicine and rehabilitationMeasurement deviceNeck MusclesReference ValuesIsometric ContractionTensile StrengthmedicineHumansOrthopedics and Sports MedicineRotator cuffPhysical Therapy ModalitiesReproducibilitybusiness.industryBiomechanicsReproducibility of ResultsRepeated measures designEquipment DesignRepeatabilityNeck musclesmedicine.anatomical_structureCervical VertebraeFemalebusiness

description

Abstract Objective. To evaluate the repeatability of an advanced method of measuring the strength of functionally different groups of neck muscles using an isometric apparatus. Design. A repeated measures design was used within and between sessions. Background. Chronic neck pain has been associated with poor isometric neck strength. In rehabilitation, strength measurements may thus help to evaluate the basic condition and show whether or not treatments and exercises have been beneficial for improving strength. Previous tests have concentrated on testing strength while trying to bend forwards and backwards, but no biomechanics device, able to test rotator muscles, has been presented. Method. The new isometric measurement device was used to test flexion, extension and also rotation strengths of normal subjects (n = 33). Results. Intratester repeatability was good with regard to all measured parameters. Conclusions. With both tests performed on the same day and test comparisons between days, intratest repeatability was good with regard to all measured parameters.

https://doi.org/10.1016/s0268-0033(98)00063-1