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Pakosz P, Konieczny M, Domaszewski P, Dybek T, Gnoiński M, Skorupska E. Comparison of concentric and eccentric resistance training in terms of changes in the muscle contractile properties. J Electromyogr Kinesiol 2023; 73:102824. [PMID: 37696055 DOI: 10.1016/j.jelekin.2023.102824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/29/2023] [Accepted: 09/06/2023] [Indexed: 09/13/2023] Open
Abstract
The habitual use of resistance exercises involving concentric and eccentric contractions can increase muscle strength, speed and endurance. However, current knowledge has limited potential to fully understand the application of such resistance training and the muscle changes that occur to differentiate these two types of training. The aim of this study was to compare the effects of concentric contraction (CON) and eccentric contraction (ECC) during an acute bout of resistance training on the hamstring contractile properties. A group of 20 female recreational athletes were divided into two equal groups, CON training and ECC training. The contractile properties of the muscles on both sides of the body were assessed using tensiomyography (TMG): biceps femoris (BF) and semitendinosus (ST). The muscles were assessed twice, before and after 10 maximal repetitions of either concentric or eccentric isotonic contractions. The results indicate a greater change in TMG parameters with ECC training, with p < 0.001 (Td and Tc). An acute bout of resistance training induces changes in the muscle hamstrings contractile properties in both CON and ECC training. Eccentric training causes greater changes than concentric training, shortening contraction time (Td, Tc), increase radial displacement velocity (Vrd) and affecting changes in muscle belly displacement (Dm), so may be more effective in training.
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Affiliation(s)
- Paweł Pakosz
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland.
| | - Mariusz Konieczny
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland
| | - Przemysław Domaszewski
- Department of Health Sciences, Institute of Health Sciences, University of Opole, Opole, Poland
| | - Tomasz Dybek
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland
| | | | - Elżbieta Skorupska
- Department of Physiotherapy, Poznan University of Medical Sciences, Poznań, Poland
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Frawley H, Shelly B, Morin M, Bernard S, Bø K, Digesu GA, Dickinson T, Goonewardene S, McClurg D, Rahnama'i MS, Schizas A, Slieker-Ten Hove M, Takahashi S, Voelkl Guevara J. An International Continence Society (ICS) report on the terminology for pelvic floor muscle assessment. Neurourol Urodyn 2021; 40:1217-1260. [PMID: 33844342 DOI: 10.1002/nau.24658] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The terminology for female and male pelvic floor muscle (PFM) assessment has expanded considerably since the first PFM function and dysfunction standardization of terminology document in 2005. New terms have entered assessment reports, and new investigations to measure PFM function and dysfunction have been developed. An update of this terminology was required to comprehensively document the terms and their definitions, and to describe the assessment method and interpretation of the finding, to standardize assessment procedures and aid diagnostic decision making. METHODS This report combines the input of members of the Standardisation Committee of the International Continence Society (ICS) Working Group 16, with contributions from recognized experts in the field and external referees. A logical, sequential, clinically directed assessment framework was created against which the assessment process was mapped. Within categories and subclassifications, each term was assigned a numeric coding. A transparent process of 12 rounds of full working group and external review was undertaken to exhaustively examine each definition, plus additional extensive internal development, with decision making by collective opinion (consensus). RESULTS A Terminology Report for the symptoms, signs, investigations, and diagnoses associated with PFM function and dysfunction, encompassing 185 separate definitions/descriptors, has been developed. It is clinically based with the most common assessment processes defined. Clarity and user-friendliness have been key aims to make it interpretable by clinicians and researchers of different disciplines. CONCLUSION A consensus-based Terminology Report for assessment of PFM function and dysfunction has been produced to aid clinical practice and be a stimulus for research.
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Affiliation(s)
- Helena Frawley
- School of Health Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Beth Shelly
- Beth Shelly Physical Therapy, Moline, Illinois, USA.,Department of Physical Therapy, Saint Ambrose University Davenport, Iowa, USA
| | - Melanie Morin
- School of Rehabilitation Faculty of Medecine and Health Sciences, University of Sherbrooke, Sherbrooke, Québec, Canada
| | - Stéphanie Bernard
- Department of Rehabilitation, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
| | - Kari Bø
- Department of Sports Medicine, Norwegian School of Sports Sciences, Akershus University Hospital, Oslo, Norway.,Department of Obstetrics and Gynecology, Lørenskog, Norway
| | - Giuseppe Alessandro Digesu
- Academic Department of Obstetrics and Gynaecology, St. Mary's Hospital, Queen Charlotte's and Chelsea Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Tamara Dickinson
- Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas, USA
| | | | - Doreen McClurg
- Nursing, Midwifery and Allied Health Professions Research Unit, Glasgow Caledonian University, Glasgow, Scotland, UK
| | - Mohammad S Rahnama'i
- Uniklinik RWTH, University Hospital of Aachen, Aachen, Germany.,Society of Urological Research and Education (SURE), Heerlen, The Netherlands
| | - Alexis Schizas
- Department of Colorectal Surgery, Guy's and St. Thomas NHS Foundation Trust, London, UK
| | - Marijke Slieker-Ten Hove
- Department Gynaecology, University of Erasmus, Rotterdam, The Netherlands.,Pelvic Floor Physiotherapy, ProFundum Instituut, Dordrecht, The Netherlands
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Skorupska E, Rychlik M, Samborski W. Intensive vasodilatation in the sciatic pain area after dry needling. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:72. [PMID: 25888420 PMCID: PMC4426539 DOI: 10.1186/s12906-015-0587-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 02/25/2015] [Indexed: 11/30/2022]
Abstract
Background Short-term vasodilatation in the pain area after dry needling (DN) of active trigger points (TrPs) was recorded in several cases of sciatica. Moreover, the presence of TrPs in sciatica patients secondary to primary lesion was suggested. Still, it is not known how often they occur and if every TrPs can provoke vasomotor reactions. The purpose of this study was to evaluate the prevalence of active TrPs among subacute sciatica patients and the response to DN under infrared thermovision (IRT) camera control. Method Fifty consecutive Caucasian patients (mean age 41.2 ± 9.1y) with subacute sciatica were diagnosed towards gluteus minimus TrPs co-existence. Based on TrPs confirmation, patients were divided into two groups: TrPs-positive and TrPs-negative, than DN under IRT control was performed. Skin temperature changes and the percentage size of vasomotor reactions in the pain area were evaluated if present. Results The prevalence of active TrPs was 32.0%. Every TrPs-positive presented vasodilatation dependent on TrPs co-diagnosis (r = 0.72 p < 0.000) and pain recognition during DN (r = 0.4 p < 0.05). The size of vasodilatation in TrPs-positive subjects was: post-DN 12.3 ± 4.0% and post-observation 22.1 ± 6.1% (both p = 0.000) versus TrPs-negative: post-DN 0.4 ± 0.3% and post-observation 0.4 ± 0.2%. A significant temperature increase in the thigh and calf was confirmed for TrPs-positive subjects only (both p < 0.05). Post-DN and post-observation temperatures were as follows: average (thigh:1.2 ± 0.2°C; 1.4 ± 0.2°C, both p < 0.05 and calf: 0.4 ± 0.2°C; 0.4 ± 0.3°C, both p < 0.05) and maximum (thigh 1.4 ± 0.3°C 1.6 ± 0.3°C; both p < 0.05). Conclusions The presence of active TrPs within the gluteus minimus muscle among subacute sciatica subjects was confirmed. Every TrPs-positive sciatica patient presented DN related vasodilatation in the area of referred pain. The presence of vasodilatation suggests the involvement of sympathetic nerve activity in myofascial pain pathomechanism. Although the clinical meaning of TrPs in subacute sciatica patients is possible, further studies on a bigger group of patients are still required. Trial registration: Australian New Zealand Clinical Trials Registry ACTRN12614001060639. Registered 3 October 2014.
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