Biomechanical aspects of measurement in musculoskeletal physical therapy

Ivan Hryshyn; Alina Lytvynchuk; Yuliia Antonova-Rafi; Nataliia Naumenko; Liliia Katiukova

doi:10.15391/prrht.2025-10(5).07

Authors

Ivan Hryshyn Department of Biosafety and Human Health, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine https://orcid.org/0000-0003-2472-8154
Alina Lytvynchuk Department of Biosafety and Human Health, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine https://orcid.org/0009-0001-6369-317X
Yuliia Antonova-Rafi Department of Biosafety and Human Health, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine https://orcid.org/0000-0002-9518-4492
Nataliia Naumenko Department of Biosafety and Human Health, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine https://orcid.org/0000-0002-0113-9317
Liliia Katiukova Institute of Traumatology and Orthopedics of the National Academy of Medical Sciences of Ukraine, Kyiv, Ukraine https://orcid.org/0000-0002-3163-2743

DOI:

https://doi.org/10.15391/prrht.2025-10(5).07

Keywords:

Coxarthrosis, Physical Therapy, Biomechanics, Redcord System, Neurac Method, Mulligan Technique, Hip Joint Function, Spinal Stabilization, Goniometry, Pain Assessment, Lequesne Index, Visual Analog Scale (VAS), Musculoskeletal Rehabilitation

Abstract

Purpose. The purpose of the study: to investigate the effectiveness of comprehensive treatment for patients with stage 2-3 coxarthrosis, utilizing a combination of therapeutic exercises, Neurac methodology on the Redcord system, and biomechanical methods with a personalized approach, and to theoretically and practically justify the rationale for this approach. This study involved 26 patients aged 45 to 65 with stage 2-3 coxarthrosis and functional deficiency grade 2. The main group received a program including Redcord/Neurac and Mulligan techniques, while the control group received standard therapy. Over eight weeks, patients were evaluated using VAS for pain, the Lequesne Index, Harris Hip Score, and goniometric joint mobility tests. Results showed a 35-40% pain reduction and significant improvements in joint function and range of motion in the experimental group. Statistical analysis confirmed the greater effectiveness of the combined physical therapy program compared to conventional treatment alone.

Material & Methods. An analysis of applying biomechanical methods during physical therapy over 2 months in 30 patients (experimental and control groups) with stage 2-3 coxarthrosis and functional deficiency (FD) of grade 2 using goniometry, visual analog scale (VAS) for pain, and Leiken index. The mentioned methods, such as goniometry, VAS, and Leiken index, allow for an objective assessment of the range of motion in the hip joint, determining the level of pain and functional deficiency in patients with coxarthrosis. These methods enable a quantitative evaluation of patients' condition before and after the application of therapeutic exercises, Neurac methodology on the Redcord system, and other treatment complexes, facilitating an objective conclusion regarding the effectiveness of these methods in the comprehensive treatment of coxarthrosis.

Results. The results of the analysis of goniometric indices, VAS, and Leiken indices with statistical significance demonstrated the advantage of using physical therapy with the Redcord system (Neurac methodology) and Mulligan in the comprehensive rehabilitation treatment of patients with stage 2-3 coxarthrosis, manifested in the improvement of dynamic hip joint function.

Conclusions. A physical therapy program utilizing the Redcord system (Neurac methodology) and Mulligan has been developed and implemented in the comprehensive rehabilitation treatment of patients with stage 2-3 coxarthrosis.

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