Authors:
- Ivana Sovič, University of Rijeka, Faculty of Health Studies, Rijeka, Croatia – student
- Hrvoje Vlahović, University of Rijeka, Faculty of Health Studies, Rijeka, Croatia
Article type:
Original Scientific Paper
Abstract:
Muscle strength assessment using dynamometry is a crucial parameter in clinical practice for establishing normative values in a healthy population and monitoring the improvement or deterioration of pathological joint conditions. Using dynamometry, the peak force of the quadriceps muscle was precisely measured to achieve the main goal of the research: to compare two dynamometers by testing quadriceps muscle strength at 15° and 90° knee joint flexion and to evaluate the advantages and disadvantages of each device through a questionnaire.
The devices used in the study were a standard manual dynamometer (microFET®2) and a fixed dynamometer (EasyForce®). Alongside the dynamometers, a questionnaire was administered. The fixed dynamometer recorded higher peak force values across all tested positions and joint angles, with statistically significant differences observed at 15° flexion in the supine position (P = 0.022), and at 90° flexion in both sitting (P < 0.001) and supine positions (P < 0.001).
Participants found it easiest to exert force against resistance at 90° flexion using the fixed dynamometer while seated. Pain during testing was reported when using the standard manual dynamometer. Respondents indicated that the equipment of the standard manual dynamometer was preferable, whereas objectivity favored the fixed dynamometer. Regarding applicability, the standard manual dynamometer was favored, but the fixed dynamometer provided more precise results.
Keywords:
dynamometry, fixed dynamometer, knee joint, quadriceps femoris muscle, standard manual dynamometer