Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series study

Introduction: The investigation of rigidity physiology in Parkinson’s Disease involves the examination of reflexes. Parkinsonian patients often demonstrate reduced sensitivity in polysynaptic reflexes within the leg extensor muscles, which is correlated with their postural instability. The compensat...

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Main Authors: Catarina Ramos Pereira, Jorge Machado, Begoña Criado, Rubim Santos, Ana Mafalda Reis, Bruno Ramos, Maria João Santos, Henry Johannes Greten
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Clinical Parkinsonism & Related Disorders
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590112525000283
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author Catarina Ramos Pereira
Jorge Machado
Begoña Criado
Rubim Santos
Ana Mafalda Reis
Bruno Ramos
Maria João Santos
Henry Johannes Greten
author_facet Catarina Ramos Pereira
Jorge Machado
Begoña Criado
Rubim Santos
Ana Mafalda Reis
Bruno Ramos
Maria João Santos
Henry Johannes Greten
author_sort Catarina Ramos Pereira
collection DOAJ
description Introduction: The investigation of rigidity physiology in Parkinson’s Disease involves the examination of reflexes. Parkinsonian patients often demonstrate reduced sensitivity in polysynaptic reflexes within the leg extensor muscles, which is correlated with their postural instability. The compensatory mechanisms for impaired proprioceptive reflex function may involve alterations in intrinsic muscle stiffness. The interplay between gait and reflexes is intricately linked to the nervous system’s functioning and motor control. Certain reflexes, such as patellar reflex, play a pivotal role in maintaining walking and posture. Ensuring the integrity of these reflexes is essential for facilitating smooth and efficient walking. Aim: To analyze the behavior of patellar reflex in four Parkinson’s Disease patients undergoing an acupuncture treatment protocol. Methods: This study adopts a case series design. Reflex outcomes based on amplitude and velocity were assessed at six different time moments throughout a month-long treatment protocol using the MP 36, Biopac Systems. Results: Over the long term, a tendency for an improvement in range of movement and velocity of the patellar reflex, was observed. Nevertheless, in specific cases, a reduction in the amplitude during acute effects was also found. Conclusion: Our findings suggest that the acupuncture protocol used may lead to a cumulative improvement in efficacy of patellar reflex in patients with Parkinson’s disease. However, further in-depth research, including a statistical evaluation with a larger participant pool, is necessary to validate and confirm these promising preliminary results.
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spelling doaj-art-77a3ea87ead4410aa14f7de1e611f0332025-08-20T02:29:24ZengElsevierClinical Parkinsonism & Related Disorders2590-11252025-01-011210032410.1016/j.prdoa.2025.100324Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series studyCatarina Ramos Pereira0Jorge Machado1Begoña Criado2Rubim Santos3Ana Mafalda Reis4Bruno Ramos5Maria João Santos6Henry Johannes Greten7ICBAS – Abel Salazar Institute for Biomedical Sciences, University of Porto, Portugal; Piaget Institute, Vila Nova de Gaia, Portugal; CBSIn – Center of Biosciences in Integrative Health, Porto, Portugal; Academia de Saúde C+, Porto, Portugal; Corresponding author at: ICBAS – Abel Salazar Institute for Biomedical Sciences, University of Porto, Portugal.ICBAS – Abel Salazar Institute for Biomedical Sciences, University of Porto, Portugal; CBSIn – Center of Biosciences in Integrative Health, Porto, PortugalCBSIn – Center of Biosciences in Integrative Health, Porto, Portugal; Academia de Saúde C+, Porto, Portugal; 1H-TOXRUN – Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, PortugalESS, Polytechnic of Porto, Porto, PortugalHospital Pedro Hispano, Matosinhos, PortugalICBAS – Abel Salazar Institute for Biomedical Sciences, University of Porto, Portugal; CBSIn – Center of Biosciences in Integrative Health, Porto, PortugalPiaget Institute, Vila Nova de Gaia, Portugal; Academia de Saúde C+, Porto, PortugalDGTCM - German Society of Traditional Chinese Medicine, 69126 Heidelberg, Germany; HSCM - Heidelberg School of Chinese Medicine, 69126 Heidelberg, GermanyIntroduction: The investigation of rigidity physiology in Parkinson’s Disease involves the examination of reflexes. Parkinsonian patients often demonstrate reduced sensitivity in polysynaptic reflexes within the leg extensor muscles, which is correlated with their postural instability. The compensatory mechanisms for impaired proprioceptive reflex function may involve alterations in intrinsic muscle stiffness. The interplay between gait and reflexes is intricately linked to the nervous system’s functioning and motor control. Certain reflexes, such as patellar reflex, play a pivotal role in maintaining walking and posture. Ensuring the integrity of these reflexes is essential for facilitating smooth and efficient walking. Aim: To analyze the behavior of patellar reflex in four Parkinson’s Disease patients undergoing an acupuncture treatment protocol. Methods: This study adopts a case series design. Reflex outcomes based on amplitude and velocity were assessed at six different time moments throughout a month-long treatment protocol using the MP 36, Biopac Systems. Results: Over the long term, a tendency for an improvement in range of movement and velocity of the patellar reflex, was observed. Nevertheless, in specific cases, a reduction in the amplitude during acute effects was also found. Conclusion: Our findings suggest that the acupuncture protocol used may lead to a cumulative improvement in efficacy of patellar reflex in patients with Parkinson’s disease. However, further in-depth research, including a statistical evaluation with a larger participant pool, is necessary to validate and confirm these promising preliminary results.http://www.sciencedirect.com/science/article/pii/S2590112525000283AcupunctureTraditional Chinese MedicineHeidelberg ModelParkinson DiseasePatellar ReflexBiopac System
spellingShingle Catarina Ramos Pereira
Jorge Machado
Begoña Criado
Rubim Santos
Ana Mafalda Reis
Bruno Ramos
Maria João Santos
Henry Johannes Greten
Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series study
Clinical Parkinsonism & Related Disorders
Acupuncture
Traditional Chinese Medicine
Heidelberg Model
Parkinson Disease
Patellar Reflex
Biopac System
title Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series study
title_full Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series study
title_fullStr Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series study
title_full_unstemmed Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series study
title_short Analysis of patellar reflex in Parkinson disease patients after an acupuncture treatment protocol – Case series study
title_sort analysis of patellar reflex in parkinson disease patients after an acupuncture treatment protocol case series study
topic Acupuncture
Traditional Chinese Medicine
Heidelberg Model
Parkinson Disease
Patellar Reflex
Biopac System
url http://www.sciencedirect.com/science/article/pii/S2590112525000283
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