1
|
van der Woude DR, Takken T, Ruyten T, Asselman FL, van Eijk RPA, van der Pol WL, Bartels B. Feasibility and Reproducibility of Isokinetic Dynamometry in Children with Neuromuscular Diseases. J Clin Med 2024; 13:5285. [PMID: 39274499 PMCID: PMC11396260 DOI: 10.3390/jcm13175285] [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: 07/16/2024] [Revised: 08/26/2024] [Accepted: 08/29/2024] [Indexed: 09/16/2024] Open
Abstract
Background/Objectives: High-precision measurement tools are needed to measure relevant changes in strength and power in children with neuromuscular diseases. The aim of this study was to determine the feasibility (i), reproducibility (ii), and validity (iii) of isokinetic dynamometry in this population. Methods: Isometric and isokinetic knee and elbow flexion and extension were measured twice on the same day. Feasibility was based on completion rate and acceptability. Acceptability was measured with a 100 mm visual analog scale. We measured reproducibility as the intraclass correlation coefficient (ICC-agreement), standard error of measurement (SEM), and smallest detectable change (SDC). We investigated relationships between isometric strength and isokinetic power with Pearson's correlation coefficient. ROC curves were used to determine the cutoff of isometric strength to conduct isokinetic measurements. Results: Fifty children with NMDs participated with completion rates of 78-90% for isometric and 39-75% for isokinetic measurements. Acceptability was high (mean (SD) = 73 (19) mm). The ICCs for all measurements were over 0.9 (95% confidence interval (CI) = 0.932-0.998). The SEM% ranged from 5 to 14% and the SDC% from 14 to 28%. The correlations of strength and power were high (Pearson's correlation coefficient >0.9 (95% CI: 0.89-0.98)). The isometric strength needed to conduct isokinetic measurements ranged from 11.1 N in elbow flexors to 24.9 N in knee extensors. Conclusions: Isokinetic dynamometry is a feasible and reproducible method for measuring isometric strength in children with neuromuscular diseases with moderate weakness to normal strength, and isokinetic measurements are only feasible in knee extension for children with moderate weakness to normal strength. The convergent validity between isometric strength and power at low velocities is high.
Collapse
Affiliation(s)
- Danny R van der Woude
- Child Development and Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Lundlaan 6, 3584 EA Utrecht, The Netherlands
| | - Tim Takken
- Child Development and Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Lundlaan 6, 3584 EA Utrecht, The Netherlands
| | - Thijs Ruyten
- Child Development and Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Lundlaan 6, 3584 EA Utrecht, The Netherlands
| | - Fay-Lynn Asselman
- Department of Neurology and Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Ruben P A van Eijk
- Department of Neurology and Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - W Ludo van der Pol
- Department of Neurology and Neurosurgery, UMC Utrecht Brain Center, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Bart Bartels
- Child Development and Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Lundlaan 6, 3584 EA Utrecht, The Netherlands
| |
Collapse
|
2
|
Stoffels AAF, Allard NAE, Spruit MA, Klijn P, Hopman MTE, Meys R, Franssen FME, Timmers S, van den Borst B, van Hees HWH. Relationship between Volitional and Non-Volitional Quadriceps Muscle Endurance in Patients with Chronic Obstructive Pulmonary Disease. Diagnostics (Basel) 2024; 14:190. [PMID: 38248067 PMCID: PMC10814454 DOI: 10.3390/diagnostics14020190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/24/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024] Open
Abstract
Volitional assessment of quadriceps muscle endurance is clinically relevant in patients with chronic obstructive pulmonary disease (COPD). However, studies that determine the construct validity of volitional tests by comparing them to non-volitional measures are lacking. Therefore, the aim of the current study is to evaluate the correlation between volitional and non-volitional quadriceps muscle endurance in patients with COPD. Quadriceps muscle endurance was evaluated in twenty-six patients with COPD. A volitional isometric and a volitional isokinetic protocol were performed on a computerised dynamometer to determine the isometric time and isokinetic work fatigue index, respectively. Non-volitional assessment of quadriceps muscle endurance was evaluated using repetitive electrical stimulations to establish the isometric muscle force decline. Sixteen patients (61 ± 8 years, 63% male, FEV1 47 (32-53)%) performed all three quadriceps endurance tests conforming to pre-defined test criteria. Both volitional isometric time and isokinetic work fatigue index did not significantly correlate with non-volitional muscle force decline (both p > 0.05). There was a strong correlation between volitional isometric time and isokinetic work fatigue index (rho = -0.716, p = 0.002). To conclude, this study suggests that volitional measures evaluate partly different aspects of quadriceps muscle endurance compared to non-volitional measures. Accordingly, these outcome measures cannot be used interchangeably.
Collapse
Affiliation(s)
- Anouk A. F. Stoffels
- Department of Pulmonary Diseases, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands (B.v.d.B.)
| | - Neeltje A. E. Allard
- Department of Physiology, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands (M.T.E.H.)
| | - Martijn A. Spruit
- Department of Research and Development, Ciro, 6085 NM Horn, The Netherlands; (M.A.S.); (R.M.); (F.M.E.F.)
- NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health and Life Sciences, Maastricht University, 6229 HX Maastricht, The Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands
| | - Peter Klijn
- Department of Pulmonology, Merem Pulmonary Rehabilitation Centre, 1213 VX Hilversum, The Netherlands;
- Department of Pulmonary Medicine, Amsterdam University Medical Centre, 1105 AZ Amsterdam, The Netherlands
| | - Maria T. E. Hopman
- Department of Physiology, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands (M.T.E.H.)
| | - Roy Meys
- Department of Research and Development, Ciro, 6085 NM Horn, The Netherlands; (M.A.S.); (R.M.); (F.M.E.F.)
- NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health and Life Sciences, Maastricht University, 6229 HX Maastricht, The Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands
| | - Frits M. E. Franssen
- Department of Research and Development, Ciro, 6085 NM Horn, The Netherlands; (M.A.S.); (R.M.); (F.M.E.F.)
- NUTRIM School of Nutrition and Translational Research in Metabolism, Faculty of Health and Life Sciences, Maastricht University, 6229 HX Maastricht, The Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), 6229 HX Maastricht, The Netherlands
| | - Silvie Timmers
- Human and Animal Physiology, Wageningen University, 6708 WD Wageningen, The Netherlands;
| | - Bram van den Borst
- Department of Pulmonary Diseases, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands (B.v.d.B.)
| | - Hieronymus W. H. van Hees
- Department of Pulmonary Diseases, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands (B.v.d.B.)
| |
Collapse
|
3
|
Tanguay S, Saey D, Marklund S, Nyberg A, Gephine S, Frykholm E, De Brandt J, Burtin C, Maltais F. Reference equations for quadriceps strength, endurance and power: a multicentre study. ERJ Open Res 2023; 9:00313-2023. [PMID: 37650093 PMCID: PMC10463037 DOI: 10.1183/23120541.00313-2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/15/2023] [Indexed: 09/01/2023] Open
Abstract
Introduction The lack of reference values of lower-limb muscle function hinders the clinical recommendations of its measurement in patients with COPD. Therefore, this study aimed to develop reference equations to predict reference values for quadriceps strength, endurance and power and evaluate their construct validity in patients with COPD. Methods Quadriceps strength, endurance and power were assessed in 158 healthy individuals and 87 patients with COPD. In addition, patients with COPD performed a 6-min walk test (6MWT) and a 1-min sit-to-stand test (1STS). Multiple linear regressions were performed to develop reference equations. The proportion of patients with COPD with reduced quadriceps function was determined, and correlations between quadriceps strength, endurance and power expressed in percentage of predicted values and 6MWT and 1STS performance were used to document the construct validity of the reference equation. Results Except for quadriceps isometric endurance, the proposed reference equations explained 50-70% of the variance of the quadriceps properties in healthy individuals. All quadriceps properties were systematically reduced in a large proportion of patients with COPD compared to healthy individuals. Correlation coefficients between quadriceps properties expressed in percentage of predicted values and 6MWT and 1STS performance ranged between 0.28 and 0.49 (all p<0.05). Conclusion In healthy individuals, age, sex, height and body mass index explained 50-70% of the variance of quadriceps strength, endurance and power. When expressed in percentage of predicted values, these quadriceps properties correlated with 6MWT and 1STS performance, suggesting construct validity of the reference values in patients with COPD.
Collapse
Affiliation(s)
- Sophie Tanguay
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
| | - Didier Saey
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
| | - Sarah Marklund
- Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå, Sweden
| | - Andre Nyberg
- Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå, Sweden
| | - Sarah Gephine
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 – URePSSS – Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
| | - Erik Frykholm
- Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå, Sweden
| | - Jana De Brandt
- Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå, Sweden
- Hasselt University, Faculty of Rehabilitation Sciences, REVAL – Rehabilitation Research Center, BIOMED Biomedical Research Institute, Diepenbeek, Belgium
| | - Chris Burtin
- Hasselt University, Faculty of Rehabilitation Sciences, REVAL – Rehabilitation Research Center, BIOMED Biomedical Research Institute, Diepenbeek, Belgium
| | - François Maltais
- Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
| |
Collapse
|
4
|
Sugimoto D, Stracciolini A, Berbert L, Nohelty E, Kobelski GP, Parmeter B, Weller E, Faigenbaum AD, Myer GD. Assessment of Physical Tests in 6-11 Years Old Children: Findings from the Play Lifestyle and Activity in Youth (PLAY) Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2552. [PMID: 36767925 PMCID: PMC9915144 DOI: 10.3390/ijerph20032552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/28/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
The purpose was to evaluate selected physical tests in children and to compare the outcomes by sex. A cross-sectional study design was used to evaluate children 6-11 years who completed five physical tests: hand grip, vertical jump, sit and reach, Y-balance, and obstacle course (time and score). The outcome measures including test results were descriptively examined and compared by sex. The study participants consisted of 133 children (62 males and 71 females, with a median age of 7.8 years). Girls showed superior sit and reach performance (p = 0.002) compared with boys. Boys demonstrated better Y-balance scores (p = 0.007) and faster obstacle time (p = 0.042) than girls. Sex comparison within three age groups (6-<8 years, 8-<10 years, and 10-<12 years) showed that girls performed better on the sit and reach compared with boys in the in 6-<8 years (p = 0.009). Boys demonstrated higher Y-balance scores (p = 0.017) and faster obstacle time (p = 0.007) compared with girls in the 8-<10-year age group. These data will serve to guide future efforts to evaluate normative measures of physical literacy and guide targeted training interventions to promote sustained physical activity in children with deficits relative to their age and sex norms.
Collapse
Affiliation(s)
- Dai Sugimoto
- The Micheli Center for Sports Injury Prevention, Waltham, MA 02453, USA
- Faculty of Sport Sciences, Waseda University, Tokyo 202-0021, Japan
| | - Andrea Stracciolini
- The Micheli Center for Sports Injury Prevention, Waltham, MA 02453, USA
- Division of Sports Medicine, Department of Orthopaedics, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
- Division of Emergency Medicine, Department of Medicine, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Laura Berbert
- Biostatistics and Research Design Center, Institutional Centers for Clinical and Translational Research, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Eric Nohelty
- Division of Sports Medicine, Department of Orthopaedics, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Greggory P. Kobelski
- Division of Sports Medicine, Department of Orthopaedics, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Becky Parmeter
- Division of Sports Medicine, Department of Orthopaedics, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Edie Weller
- Harvard Medical School, Boston, MA 02115, USA
- Biostatistics and Research Design Center, Institutional Centers for Clinical and Translational Research, Boston Children’s Hospital, Boston, MA 02115, USA
- Division of Hematology and Oncology, Boston Children’s Hospital, Boston, MA 02115, USA
| | | | - Gregory D. Myer
- The Micheli Center for Sports Injury Prevention, Waltham, MA 02453, USA
- Emory Sports Performance and Research Center (SPARC), Flowery Branch, GA 30542, USA
- Emory Sports Medicine Center, Atlanta, GA 30329, USA
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA 30307, USA
| |
Collapse
|
5
|
da Silva ML, de Sousa Neto IV, de Lima ACGB, Barin F, de Toledo Nóbrega O, de Cássia Marqueti R, Cipriano GFB, Durigan JLQ, Ferreira EA, Bottaro M, Arena R, Cahalin LP, Neder JA, Junior GC. Effects of Home-Based Electrical Stimulation on Plasma Cytokines Profile, Redox Biomarkers, and Metalloproteinases in the Heart Failure with Reduced Ejection Fraction: A Randomized Trial. J Cardiovasc Dev Dis 2022; 9:jcdd9120463. [PMID: 36547460 PMCID: PMC9785395 DOI: 10.3390/jcdd9120463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/01/2022] [Accepted: 10/20/2022] [Indexed: 12/23/2022] Open
Abstract
Background: Low-frequency electrical stimulation (LFES) is an adjuvant method for heart failure (HF) patients with restrictions to start an exercise. However, the impact on molecular changes in circulating is unknown. We investigated the effects of 10 weeks of home-based LFES on plasma cytokines profile, redox biomarkers, metalloproteinases (MMPs) activity, and exercise performance in HF patients. Methods: Twenty-four HF patients (52.45 ± 9.15 years) with reduced ejection fraction (HFrEF) (EF < 40%), were randomly assigned to a home-based LFES or sham protocol. Plasma cytokines profile was assessed through interleukins, interferon-gamma, and tumor necrosis factor levels. Oxidative stress was evaluated through ferric reducing antioxidant power, thiobarbituric acid-reactive substances, and inducible nitric oxide synthase. The MMPs activity were analyzed by zymography. Cardiorespiratory capacity and muscle strength were evaluated by cardiopulmonary test and isokinetic. Results: LFES was able to increase the active-MMP2 activity post compared to pre-training (0.057 to 0.163, p = 0.0001), while it decreased the active-MMP9 (0.135 to 0.093, p = 0.02). However, it did not elicit changes in cytokines, redox biomarkers, or exercise performance (p > 0.05). Conclusion: LFES protocol is a promising intervention to modulate MMPs activity in HFrEF patients, although with limited functional effects. These preliminary responses may help the muscle to adapt to future mechanical demands dynamically.
Collapse
Affiliation(s)
- Marianne Lucena da Silva
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
- Health Sciences Academic Unit, Federal University of Jataí, Jataí 75801-615, GO, Brazil
| | - Ivo Vieira de Sousa Neto
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
| | - Alexandra C. G. B. de Lima
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
| | - Fabrício Barin
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
| | - Otávio de Toledo Nóbrega
- Department of Medicine, University of Brasilia (UnB), Campus Universitário Darcy Ribeiro, Asa Norte, Brasilia 70910-900, DF, Brazil
| | - Rita de Cássia Marqueti
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
| | - Graziella F. B. Cipriano
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
| | - João Luiz Quagliotti Durigan
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
| | - Eduardo Antônio Ferreira
- Department of Pharmacy, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
| | - Martim Bottaro
- Department of Physical Education, University of Brasilia (UnB), Campus Universitário Darcy Ribeiro, Asa Norte, Brasilia 70910-900, DF, Brazil
| | - Ross Arena
- Department of Physical Therapy, University of Illinois, 1919 W Taylor St., Chicago, IL 60612, USA
| | - Larry P. Cahalin
- Department of Physical Therapy, Leonard M. Miller School of Medicine, University of Miami, 5915 Ponce de Leon Blvd., 5th Floor, Coral Gables, FL 33101, USA
| | - José Alberto Neder
- Department of Medicine, School of Medicine at the Queen’s University, Queen’s University & Kingston General Hospital, Etherington Hall, Rooms 3032-3043, 94 Stuart Street, Kingston, ON K7L 3N6, Canada
| | - Gerson Cipriano Junior
- Rehabilitation Sciences and Health Sciences and Technologies Ph.D. Program, University of Brasilia (UnB), Campus Universitário, s/n, Centro Metropolitano, Brasilia 72220-275, DF, Brazil
- Correspondence:
| |
Collapse
|
6
|
Stoffels AAF, van Voorthuizen EL, van Hees HWH, Peters JB, van Helvoort HAC, Voermans NC, Doorduin J, van den Borst B. Longitudinal Analysis of Quadriceps Muscle Strength in Patients with Previous COVID-19 Hospitalization and in Patients with Post-Acute Sequelae following Mild COVID-19. Nutrients 2022; 14:nu14204319. [PMID: 36297002 PMCID: PMC9608500 DOI: 10.3390/nu14204319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 11/07/2022] Open
Abstract
Muscle weakness is a prominent symptom in post-acute sequelae of COVID-19 (PASC). However, few studies have objectively and longitudinally assessed muscle strength after varying COVID-19 severity grades. This observational study aimed to explore the prevalence, determinants, and 1.5 years change of quadriceps muscle weakness in 98 patients discharged from COVID-19 hospitalization and in 50 patients with PASC following mild COVID-19. Isometric quadriceps maximal voluntary contraction (MVC) was assessed on a computerized dynamometer at three visits. Also, in a subgroup of 14 post-COVID-19 patients with quadriceps muscle weakness, muscle thickness and echo intensity were determined by muscle ultrasound of nine upper and lower extremity muscles. Muscle weakness was found in 59% of post-hospitalized patients and in 65% of those with PASC following mild COVID-19 at ~14 weeks after acute COVID-19. Whereas during ~1.5 years follow-up MVC modestly improved, muscle weakness prevalence remained unchanged. Hospital length of stay and diabetes mellitus were identified as possible predictors of muscle weakness following COVID-19 hospitalization. No predictors could be identified in those with PASC following mild COVID-19. Ultrasound outcomes revealed no large structural abnormalities. In conclusion, clinically relevant muscle weakness is common after COVID-19 and its long-term improvement is poor. Future studies with relevant control groups are warranted to confirm our data.
Collapse
Affiliation(s)
- Anouk A. F. Stoffels
- Department of Pulmonary Diseases, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
- Correspondence:
| | - Esther L. van Voorthuizen
- Department of Pulmonary Diseases, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Hieronymus W. H. van Hees
- Department of Pulmonary Diseases, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Jeannette B. Peters
- Department of Pulmonary Diseases, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | | | - Nicol C. Voermans
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Jonne Doorduin
- Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Bram van den Borst
- Department of Pulmonary Diseases, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| |
Collapse
|
7
|
Nyberg A, Milad N, Martin M, Patoine D, Morissette MC, Saey D, Maltais F. Role of progression of training volume on intramuscular adaptations in patients with chronic obstructive pulmonary disease. Front Physiol 2022; 13:873465. [PMID: 36082219 PMCID: PMC9446145 DOI: 10.3389/fphys.2022.873465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 07/15/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction: Quadriceps dysfunction is a common systemic manifestation of chronic obstructive pulmonary disease (COPD), for which treatment using resistance training is highly recommended. Even though training volume is suggested to be a key explanatory factor for intramuscular adaptation to resistance training in healthy older adults, knowledge is scarce on the role of progression of training volume for intramuscular adaptations in COPD. Methods: This study was a sub-analysis of a parallel-group randomized controlled trial. Thirteen patients with severe to very severe COPD (median 66 yrs, forced expiratory volume in 1 s 44% predicted) performed 8 weeks of low-load resistance training. In a post hoc analysis, they were divided into two groups according to their training volume progression. Those in whom training volume continued to increase after the first 4 weeks of training outlined the continued progression group (n = 9), while those with limited increase (<5%) or even reduction in training volume after the initial 4 weeks composed the discontinued progression group (n = 4). Fiber-type distribution and oxidative muscle protein levels, i.e., citrate synthase (CS), hydroxyacyl-coenzyme A dehydrogenase (HADH), mitochondrial transcription factor A (TfAM) as well as quadriceps endurance measures (total work from elastic band and isokinetic knee extension tests), were assessed before and after the intervention period. Results: The continued progression group sustained their training volume progression during weeks 5–8 compared to weeks 1–4 (median +25%), while the discontinued progression group did not (median -2%) (p = 0.007 between groups). Compared with baseline values, significant between-group differences in fiber type distribution and TfAM muscle protein levels (range ± 17–62%, p < 0.05) and in individual responses to change in Type I and Type IIa fiber type proportion, CS, HADH, and TfAM muscle protein levels outcomes (median 89 vs. 50%, p = 0.001) were seen in favor of the continued progression group. Moreover, only the continued progression group had a significant increase in HADH muscle protein levels (+24%, p = 0.004), elastic band (+56%, p = 0.004) and isokinetic (+7%, p = 0.004) quadriceps endurance, but the between-group differences did not reach statistical significance (range 14–29%, p = 0.330–1.000). Discussion: The novel findings of the current study were that patients with COPD who had a continued progression of training volume across the 8-weeks intervention had an increased proportion of Type I fibers, and TfAM muscle protein levels and decreased proportion of Type II fibers compared to those that did not continue to progress their training volume after the initial weeks. Additionally, HADH muscle protein levels and quadriceps endurance measurements only improved in the continued progression group, although no significant between-group differences were seen. These findings highlight the importance of continued progression of training volume during resistive training to counteract quadriceps dysfunction within the COPD population. Still, considering the small sample size and the post hoc nature of our analyses, these results should be interpreted cautiously, and further research is necessary.
Collapse
Affiliation(s)
- Andre Nyberg
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
- Department of Community Medicine and Rehabilitation, section of Physiotherapy, Umeå University, Umeå, Sweden
- *Correspondence: Andre Nyberg,
| | - Nadia Milad
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Mickael Martin
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Dany Patoine
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Mathieu C Morissette
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - Didier Saey
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - François Maltais
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Québec, QC, Canada
| |
Collapse
|
8
|
Stoffels AA, Meys R, van Hees HW, Franssen FM, van den Borst B, van ’t Hul AJ, Klijn PH, Vaes AW, De Brandt J, Burtin C, Spruit MA. Isokinetic testing of quadriceps function in COPD: feasibility, responsiveness, and minimal important differences in patients undergoing pulmonary rehabilitation. Braz J Phys Ther 2022; 26:100451. [PMID: 36288671 PMCID: PMC9593178 DOI: 10.1016/j.bjpt.2022.100451] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 09/09/2022] [Accepted: 10/03/2022] [Indexed: 11/26/2022] Open
Abstract
Evaluation of isokinetic quadriceps testing in COPD is needed to assess its efficacy. Isokinetic testing was performed incorrectly in a quarter of patients with COPD. Quadriceps peak torque and total work improved following pulmonary rehabilitation. Minimal important differences for peak torque and total work were determined.
Background Isokinetic testing of peripheral muscle function is valid and reliable in patients with chronic obstructive pulmonary disease (COPD). Objective To evaluate whether and to what extent isokinetic testing of quadriceps function meets pre-defined test criteria in patients with COPD; to determine the response to pulmonary rehabilitation (PR), and to calculate minimal important differences (MIDs) of isokinetic quadriceps function. Methods Retrospective analysis of 2033 patients with COPD (age: 65±9 years, body mass index: 26±6 kg/m2, FEV1: 49±22% predicted) who followed a comprehensive PR program. Pre and post PR isokinetic quadriceps function was assessed with 30 maximal extension-flexion contractions at an angular speed of 90°/s on a computerized dynamometer. The chosen anchors were 6-min walk test and COPD assessment test. Results Pre PR, 27% of the patients performed the isokinetic test incorrectly. In male and female patients with a correct pre and post PR isokinetic test, peak torque (Δ=10±13 Nm or 9% and Δ=7±9 Nm or 10%, respectively) and total work (Δ=263±270 J or 14% and Δ=198±190 J or 15%, respectively) improved significantly. There was no change in work fatigue index following PR. Using distribution-based calculations, MID estimates for peak torque and total work ranged between 6–7 Nm and 97–135 J in males and between 4–5 Nm and 62–99 J in females. Conclusions Based on the current test criteria, three in four patients with COPD performed the isokinetic quadriceps test correctly during baseline PR assessment. Furthermore, peak torque and total work, but not work fatigue index, were responsive to PR and sex-specific MIDs were established.
Collapse
Affiliation(s)
- Anouk A.F. Stoffels
- Department of Pulmonary Diseases, Radboud University Medical Center, Nijmegen, the Netherlands,Department of Research and Development, Ciro, Horn, the Netherlands,Nutrim School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands,Corresponding author at: Department of Pulmonary Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Roy Meys
- Department of Research and Development, Ciro, Horn, the Netherlands,Nutrim School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands,Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, the Netherlands
| | | | - Frits M.E. Franssen
- Department of Research and Development, Ciro, Horn, the Netherlands,Nutrim School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands,Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, the Netherlands
| | - Bram van den Borst
- Department of Pulmonary Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Alex J. van ’t Hul
- Department of Pulmonary Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Peter H. Klijn
- Department of Pulmonology, Merem Pulmonary Rehabilitation Centre, Hilversum, the Netherlands,Department of Pulmonary Medicine, Amsterdam UMC, Amsterdam, the Netherlands
| | - Anouk W. Vaes
- Department of Research and Development, Ciro, Horn, the Netherlands
| | - Jana De Brandt
- REVAL–Rehabilitation Research Center, BIOMED–Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
| | - Chris Burtin
- REVAL–Rehabilitation Research Center, BIOMED–Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
| | - Martijn A. Spruit
- Department of Research and Development, Ciro, Horn, the Netherlands,Nutrim School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands,Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, the Netherlands
| | | |
Collapse
|
9
|
Retentive capacity of power output and linear versus non-linear mapping of power loss in the isotonic muscular endurance test. Sci Rep 2021; 11:22677. [PMID: 34811406 PMCID: PMC8608821 DOI: 10.1038/s41598-021-02116-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 11/10/2021] [Indexed: 11/13/2022] Open
Abstract
The limit of dynamic endurance during repetitive contractions has been referred to as the point of muscle fatigue, which can be measured by mechanical and electrophysiological parameters combined with subjective estimates of load tolerance for revealing the human real-world capacity required to work continuously. In this study, an isotonic muscular endurance (IME) testing protocol under a psychophysiological fatigue criterion was developed for measuring the retentive capacity of the power output of lower limb muscles. Additionally, to guide the development of electrophysiological evaluation methods, linear and non-linear techniques for creating surface electromyography (sEMG) models were compared in terms of their ability to estimate muscle fatigue. Forty healthy college-aged males performed three trials of an isometric peak torque test and one trial of an IME test for the plantar flexors and knee and hip extensors. Meanwhile, sEMG activity was recorded from the medial gastrocnemius, lateral gastrocnemius, vastus medialis, rectus femoris, vastus lateralis, gluteus maximus, and biceps femoris of the right leg muscles. Linear techniques (amplitude-based parameters, spectral parameters, and instantaneous frequency parameters) and non-linear techniques (a multi-layer perception neural network) were used to predict the time-dependent power output during dynamic contractions. Two mechanical manifestations of muscle fatigue were observed in the IME tests, including power output reduction between the beginning and end of the test and time-dependent progressive power loss. Compared with linear mapping (linear regression) alone or a combination of sEMG variables, non-linear mapping of power loss during dynamic contractions showed significantly higher signal-to-noise ratios and correlation coefficients between the actual and estimated power output. Muscular endurance required in real-world activities can be measured by considering the amount of work produced or the activity duration via the recommended IME testing protocol under a psychophysiological termination criterion. Non-linear mapping techniques provide more powerful mapping of power loss compared with linear mapping in the IME testing protocol.
Collapse
|
10
|
Vaes AW, Sillen MJH, Goërtz YMJ, Machado FVC, Van Herck M, Burtin C, Franssen FME, van 't Hul AJ, Spruit MA. The correlation between quadriceps muscle strength and endurance and exercise performance in patients with COPD. J Appl Physiol (1985) 2021; 131:589-600. [PMID: 34138649 DOI: 10.1152/japplphysiol.00149.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
To determine the association between quadriceps muscle strength (QMS) and endurance (QME) and exercise capacity in patients with COPD after stratification for sex and resting lung function (LF). Data were collected from 3,246 patients with COPD (60% men, 64 ± 9 yr), including measures of exercise capacity [peak aerobic capacity (peakV̇o2), 6-min walk distance (6MWD)] and isokinetic QMS and QME. Patients were stratified for sex, forced expiratory volume in 1 s (>50/≤50% predicted), single breath carbon monoxide diffusing capacity (>50/≤50% predicted), and residual volume (>140/≤140% predicted). After stratification for resting LF, QMS and QME were significantly associated with peakV̇o2 (r range: 0.47-0.61 and 0.49-0.65 for men and 0.53-0.66 and 0.48-0.67 for women, respectively) and 6MWD (r range: 0.29-0.42 and 0.44-0.55 for men and 0.25-0.54 and 0.34-0.55 for women, respectively) (P < 0.001). Regression models demonstrated that QMS and QME were significant determinants of peakV̇o2 (explained variance R2 range: 35.6%-48.8% for men and 36.8%-49.0% for women) and 6MWD (R2 range: 24.3%-43.3% for men and 28.4%-40.3% for women), independent of age and fat-free mass. Quadriceps muscle function was significantly associated with peakV̇o2 and 6MWD in male and female patients with COPD after stratification for resting LF, in which QME appear to be a more important determinant than QMS. This underlines the importance of systematically evaluating both quadriceps muscle strength and endurance in in all patients with COPD.NEW & NOTEWORTHY Our findings identified quadriceps muscle function as an important determinant of exercise capacity across a wide spectrum of lung function. Quadriceps muscle endurance appears to be a more important determinant than quadriceps muscle strength, underlining the importance of including both the measurement of quadriceps muscle strength and endurance in routine assessment for all patient with COPD.
Collapse
Affiliation(s)
- A W Vaes
- Department of Research and Development, CIRO, Horn, The Netherlands
| | - M J H Sillen
- Department of Physiotherapy, CIRO, Horn, The Netherlands
| | - Y M J Goërtz
- Department of Research and Development, CIRO, Horn, The Netherlands
| | - F V C Machado
- Department of Research and Development, CIRO, Horn, The Netherlands.,Department of Respiratory Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - M Van Herck
- Department of Research and Development, CIRO, Horn, The Netherlands.,REVAL-Rehabilitation Research Center, BIOMED-Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
| | - C Burtin
- REVAL-Rehabilitation Research Center, BIOMED-Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
| | - F M E Franssen
- Department of Research and Development, CIRO, Horn, The Netherlands.,Department of Respiratory Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - A J van 't Hul
- Department of Pulmonary Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M A Spruit
- Department of Research and Development, CIRO, Horn, The Netherlands.,Department of Respiratory Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands.,REVAL-Rehabilitation Research Center, BIOMED-Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
| |
Collapse
|
11
|
Frykholm E, Gephine S, Saey D, Lemson A, Klijn P, Bij de Vaate E, Maltais F, van Hees H, Nyberg A. Isotonic quadriceps endurance is better associated with daily physical activity than quadriceps strength and power in COPD: an international multicentre cross-sectional trial. Sci Rep 2021; 11:11557. [PMID: 34078960 PMCID: PMC8172909 DOI: 10.1038/s41598-021-90758-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 05/12/2021] [Indexed: 11/24/2022] Open
Abstract
Knowledge about modifiable determinants of daily physical activity (PA) in patients with chronic obstructive pulmonary disease (COPD) is crucial to design effective PA interventions. The present study aimed to determine the contribution of quadriceps strength, power and endurance to daily PA in COPD. Additionally, for quadriceps endurance, we also aimed to determine to what extent the association varies according to the mode of movement (isotonic, isometric, or isokinetic). Using a multicentre cross-sectional trial design we determined the contribution of quadriceps function to daily PA (steps, sedentary time and time spent doing moderate-to-very-vigorous physical activity [MVPA]) using bivariate and partial Pearson correlation analysis (r) and multiple linear regression models (ΔR2). Pre-determined controlling factors were sex, age, body mass index (BMI), COPD-assessment test, forced expiratory volume in one second in percent of the predicted value (FEV1pred), and distance walked on the 6-minute walk test. Eighty-one patients with COPD (mean ± SD: age 67 ± 8 years, FEV1pred 57 ± 19%, daily steps 4968 ± 3319, daily sedentary time 1016 ± 305 min, and MVPA time 83 ± 45 min) were included. Small to moderate bivariate correlations (r = .225 to .452, p < .05) were found between quadriceps function and measures of PA. The best multiple linear regression models explained 38–49% of the variance in the data. Isotonic endurance was the only muscle contributor that improved all PA models; daily steps (ΔR2 = .04 [relative improvement 13%] p = .026), daily sedentary time (ΔR2 = .07 [23%], p = .005) and MVPA-minutes (ΔR2 = .08 [20%], p = .001). Isotonic endurance was also independently associated with most PA variables, even when controlling for strength, power or isometric-isokinetic endurance properties of the muscle (r = .246 to .384, p < .05). In contrast, neither strength, power, isometric-or isokinetic endurance properties of the muscle was independently associated with PA measures when controlling for isotonic endurance (r = .037 to .219, p > .05). To conclude, strength, power, and endurance properties of the quadriceps were low to moderately associated with PA in patients with COPD. Isotonic quadriceps endurance was the only quadriceps property that was independently associated with the different measures of PA after controlling for a basic set of known determinants of PA, quadriceps strength or power, or isometric or isokinetic quadriceps endurance. Future longitudinal studies should investigate its potential as a modifiable determinant of PA.
Collapse
Affiliation(s)
- Erik Frykholm
- Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University , Umeå, Sweden.
| | - Sarah Gephine
- Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec, Canada.,Univ. Lille, Univ. Artois, Univ. Littoral Côte D'opale, ULR 7369-Urepsss, Lille, France
| | - Didier Saey
- Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec, Canada
| | - Arthur Lemson
- Department of Pulmonary Diseases, Radboud UMC, Nijmegen, The Netherlands
| | - Peter Klijn
- Department of Pulmonary Rehabilitation, Merem Medical Rehabilitation, Hilversum, The Netherlands.,Department of Pulmonary Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Eline Bij de Vaate
- Department of Pulmonary Rehabilitation, Merem Medical Rehabilitation, Hilversum, The Netherlands
| | - François Maltais
- Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec, Canada
| | | | - André Nyberg
- Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University , Umeå, Sweden
| |
Collapse
|
12
|
Gephine S, Frykholm E, Nyberg A, Mucci P, Van Hees HWH, Lemson A, Klijn P, Maltais F, Saey D. Specific Contribution of Quadriceps Muscle Strength, Endurance, and Power to Functional Exercise Capacity in People With Chronic Obstructive Pulmonary Disease: A Multicenter Study. Phys Ther 2021; 101:6136820. [PMID: 33594431 DOI: 10.1093/ptj/pzab052] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/06/2020] [Accepted: 12/31/2020] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Various functional muscle properties affect different aspects of functional exercise capacity in people with chronic obstructive pulmonary disease (COPD). The purpose of this study was to investigate the contribution of quadriceps muscle strength, endurance, and power to 6-Minute Walking Distance (6MWD) and 1-minute sit-to-stand test (1STS) performance in people with COPD. METHODS The study was a prospective, multicenter, cross-sectional study. Anthropometrics, Medical Research Council dyspnea scale, lung function, 6MWD, and 1STS number of repetitions were assessed. Isometric quadriceps strength and endurance, isotonic quadriceps endurance, isokinetic quadriceps strength, and power were assessed on a computerized dynamometer while functional quadriceps power was determined during 5 sit-to-stand repetitions. Univariate and multivariate analyses were performed to determine the contribution of functional muscle properties to the 6MWD and the 1STS number of repetitions. RESULTS The study included 70 people with COPD (mean % predicted forced expiratory volume in 1 second = 58.9 [SD = 18.2]). The 6MWD correlated with each functional muscle property except the isometric quadriceps endurance. The number of repetitions during the 1STS correlated with each functional muscle property except isometric measurements. Multivariate models explained 60% and 39% of the variance in the 6MWD and 1STS number of repetitions, respectively, with quadriceps power determined during 5 sit-to-stand repetitions being the muscle functional property with the strongest contribution to the models. CONCLUSION Except for isometric endurance, quadriceps strength, endurance, and power were associated with functional exercise capacity in people with moderate COPD. Among these functional muscle properties, muscle power contributed the most to the 6MWD and 1STS number of repetitions, suggesting that muscle power is more relevant to functional exercise capacity than muscle strength or endurance in people with COPD. IMPACT Understanding the individual contribution of muscle properties to functional status is important to designing interventions. This study provides the guidance that muscle power may be more important to functional exercise capacity than muscle strength or endurance in people with COPD.
Collapse
Affiliation(s)
- Sarah Gephine
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, 2725 Chemin Sainte-Foy, Québec, G1V 4G5, Canada.,Univ. Lille, Univ. Artois, Univ. Littoral Côte D'opale, ULR 7369-Urepsss, Lille, France
| | - Erik Frykholm
- Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå University, Umeå, Sweden
| | - Andre Nyberg
- Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå University, Umeå, Sweden
| | - Patrick Mucci
- Univ. Lille, Univ. Artois, Univ. Littoral Côte D'opale, ULR 7369-Urepsss, Lille, France
| | | | - Arthur Lemson
- Radboud UMC, Department of Pulmonary Diseases, Nijmegen, the Netherlands
| | - Peter Klijn
- Merem Medical Rehabilitation, Department of Pulmonary Rehabilitation, Hilversum, the Netherlands.,Amsterdam University Medical Center, Department of Pulmonary Medicine, Amsterdam, the Netherlands
| | - François Maltais
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, 2725 Chemin Sainte-Foy, Québec, G1V 4G5, Canada
| | - Didier Saey
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, 2725 Chemin Sainte-Foy, Québec, G1V 4G5, Canada
| |
Collapse
|
13
|
Stoffels AAF, van den Borst B, Peters JB, Klaassen MPM, van Helvoort HAC, Meys R, Klijn P, Burtin C, Franssen FME, van ‘t Hul AJ, Spruit MA, van Hees HWH. Correlates of variability in endurance shuttle walk test time in patients with chronic obstructive pulmonary disease. PLoS One 2021; 16:e0249786. [PMID: 33882094 PMCID: PMC8059801 DOI: 10.1371/journal.pone.0249786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 03/24/2021] [Indexed: 11/30/2022] Open
Abstract
Background The endurance shuttle walk test (ESWT) is used to evaluate exercise tolerance in patients with chronic obstructive pulmonary disease (COPD). The recommended pre-intervention tolerated duration (Tlim) is between 3–8 minutes for optimal interpretation of treatment effects. However, this window may be exceeded and factors determining ESWT Tlim are not completely understood. Therefore, we aimed to determine whether pulmonary function, physical and incremental shuttle walk test (ISWT) performance measures are associated with ESWT Tlim in COPD patients. Methods Assessment data from patients eligible for pulmonary rehabilitation was retrospectively analyzed. Inclusion criteria were: diagnosis of COPD and complete data availability regarding ESWT and ISWT. Patients performed an ESWT at 85% of ISWT speed and were divided into three groups (ESWT Tlim: <3 minutes, 3–8 minutes, >8 minutes). Subject characteristics, severity of complaints, pulmonary function, physical capacity and activity, exercise tolerance and quadriceps muscle strength were evaluated. Results 245 COPD patients (FEV1 38 (29–52)% predicted) were included. Median ESWT Tlim was 6.0 (3.7–10.3) minutes, 41 (17%) patients walked <3 minutes and 80 (33%) patients walked >8 minutes. Body mass index, maximal oxygen consumption, Tlim on constant work rate cycle test, physical activity level, maximal ISWT speed, dyspnoea Borg score at rest and increase of leg fatigue Borg score during ISWT independently predicted Tlim in multivariate regression analysis (R2 = 0.297, p<0.001). Conclusion This study reported a large variability in ESWT Tlim in COPD patients. Secondly, these results demonstrated that next to maximal ISWT speed, other ISWT performance measures as well as clinical measures of pulmonary function, physical capacity and physical activity were independent determinants of ESWT Tlim. Nevertheless, as these determinants only explained ~30% of the variability, future studies are needed to establish whether additional factors can be used to better adjust individual ESWT pace in order to reduce ESWT Tlim variability.
Collapse
Affiliation(s)
- Anouk A. F. Stoffels
- Department of Pulmonary Diseases, Dekkerswald Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
- Department of Research and Development, CIRO, Horn, The Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Center (MUMC+), NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
- * E-mail:
| | - Bram van den Borst
- Department of Pulmonary Diseases, Dekkerswald Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Jeannette B. Peters
- Department of Medical Psychology, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Mariska P. M. Klaassen
- Department of Pulmonary Diseases, Dekkerswald Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Hanneke A. C. van Helvoort
- Department of Pulmonary Diseases, Dekkerswald Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Roy Meys
- Department of Research and Development, CIRO, Horn, The Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Center (MUMC+), NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Peter Klijn
- Department of Pulmonary Rehabilitation, Merem Medical Rehabilitation, Hilversum, The Netherlands
- Department of Pulmonary Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Chris Burtin
- Reval Rehabilitation Research–Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
| | - Frits M. E. Franssen
- Department of Research and Development, CIRO, Horn, The Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Center (MUMC+), NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Alex J. van ‘t Hul
- Department of Pulmonary Diseases, Dekkerswald Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Martijn A. Spruit
- Department of Research and Development, CIRO, Horn, The Netherlands
- Department of Respiratory Medicine, Maastricht University Medical Center (MUMC+), NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Hieronymus W. H. van Hees
- Department of Pulmonary Diseases, Dekkerswald Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | | |
Collapse
|
14
|
STRENGTH AND FATIGUE MEASUREMENTS OF THE HIP FLEXOR AND HIP EXTENSOR MUSCLES: TEST-RETEST RELIABILITY AND LIMB DOMINANCE EFFECT. Int J Sports Phys Ther 2020; 15:967-976. [PMID: 33344013 DOI: 10.26603/ijspt20200967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Standardized testing of hip muscle strength and fatigue in the sagittal plane is important for assessing, treating and preventing a number of trunk and lower extremity pathologies. Furthermore, individuals displaying asymmetries of muscle strength between limbs are more likely to sustain an injury. Purpose To evaluate the test-retest reliability of isometric strength and isokinetic fatigue measurements of the hip flexor and hip extensor muscles, and to examine whether there is a significant limb dominance effect on strength, fatigue and flexor-extensor ratios. Study design Cross-sectional study. Methods To evaluate reliability, 30 healthy individuals (33.2 + /- 13.1 years) were included. On a separate occasion, 24 healthy individuals (29.0 + /- 10.3 years) participated to assess between-limb differences. Reliability was established using intraclass correlation coefficients (ICCs), standard error of measurements (SEM) and minimal detectable change (MDC). Isometric strength (best peak torque of three maximal contractions; Nm/kg), isokinetic fatigue (total work of 20 consecutive maximal concentric flexor-extensor contractions at 120 °/s; Joule/kg), and flexor-extensor ratios, were recorded using a Biodex dynamometer. Results Reliability was good-to-excellent (ICCs>0.83) and measurement errors were acceptable (SEM<13.6% and MDC%<37.8%). No significant between-limb differences in strength, fatigue and flexor-extensor ratios were detected. Conclusions Isometric strength and isokinetic fatigue of the hip flexor and hip extensor muscles can be reliably assessed in healthy individuals using the Biodex dynamometer. Limb dominance did not significantly affect strength, fatigue or flexor-extensor ratios. Level of Evidence 2b.
Collapse
|
15
|
Marklund S, Bui KL, Nyberg A. Measuring and monitoring skeletal muscle function in COPD: current perspectives. Int J Chron Obstruct Pulmon Dis 2019; 14:1825-1838. [PMID: 31695351 PMCID: PMC6707440 DOI: 10.2147/copd.s178948] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 06/25/2019] [Indexed: 11/23/2022] Open
Abstract
Skeletal muscle dysfunction is an important systemic consequence of chronic obstructive pulmonary disease (COPD) that worsens the natural cause of the disease. Up to a third of all people with COPD express some form of impairment which encompasses reductions in strength and endurance, as well as an increased fatigability. Considering this complexity, no single test could be used to measure and monitor all aspects of the impaired skeletal muscle function within the COPD population, resulting in a wide range of available tests and measurement techniques. The aim of the current review is to highlight current and new perspectives relevant to skeletal muscle function measurements within the COPD population in order to provide guidance for researchers as well as for clinicians. First of all, standardized and clinically feasible measurement protocols, as well as normative values and predictive equations across the spectrum of impaired function in COPD, are needed before assessment of skeletal muscle function can become a reality in clinical praxis. This should minimally target the quadriceps muscle; however, depending on the objective of measurements, eg, to determine upper limb muscle function or walking capacity, other muscles could also be tested. Furthermore, even though muscle strength measurements are important, current evidence suggests that other aspects, such as the endurance and power capacity of the muscle, should also be considered. Moreover, although static (isometric) measurements have been favored, dynamic measurements of skeletal muscle function should not be neglected as they, in a larger extent than static measurements, are related to tasks of daily living. Lastly, the often modest relationships between functional tests and skeletal muscle function measurements indicate that they evaluate different constructs and thus cannot replace one another. Therefore, for accurate measurements of skeletal muscle function in people with COPD, specific and formal measurements should still be prioritized.
Collapse
Affiliation(s)
- Sarah Marklund
- Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå University, Umeå, Sweden
| | - Kim-Ly Bui
- Rehabilitation Department, Faculty of Medicine Laval University and Centre de recherche, Laval University Quebec Heart and Lung Institute (CRIUCPQ), Québec, QC, Canada
| | - Andre Nyberg
- Department of Community Medicine and Rehabilitation, Section of Physiotherapy, Umeå University, Umeå, Sweden
| |
Collapse
|
16
|
Liljequist D, Elfving B, Skavberg Roaldsen K. Intraclass correlation - A discussion and demonstration of basic features. PLoS One 2019; 14:e0219854. [PMID: 31329615 PMCID: PMC6645485 DOI: 10.1371/journal.pone.0219854] [Citation(s) in RCA: 338] [Impact Index Per Article: 67.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 07/02/2019] [Indexed: 11/19/2022] Open
Abstract
A re-analysis of intraclass correlation (ICC) theory is presented together with Monte Carlo simulations of ICC probability distributions. A partly revised and simplified theory of the single-score ICC is obtained, together with an alternative and simple recipe for its use in reliability studies. Our main, practical conclusion is that in the analysis of a reliability study it is neither necessary nor convenient to start from an initial choice of a specified statistical model. Rather, one may impartially use all three single-score ICC formulas. A near equality of the three ICC values indicates the absence of bias (systematic error), in which case the classical (one-way random) ICC may be used. A consistency ICC larger than absolute agreement ICC indicates the presence of non-negligible bias; if so, classical ICC is invalid and misleading. An F-test may be used to confirm whether biases are present. From the resulting model (without or with bias) variances and confidence intervals may then be calculated. In presence of bias, both absolute agreement ICC and consistency ICC should be reported, since they give different and complementary information about the reliability of the method. A clinical example with data from the literature is given.
Collapse
Affiliation(s)
- David Liljequist
- Department of Physics, Stockholm University, Stockholm, Sweden
- * E-mail:
| | - Britt Elfving
- Department of Neurobiology, Care Science and Society, Division of Physiotherapy, Karolinska Institutet, Stockholm, Sweden
| | - Kirsti Skavberg Roaldsen
- Department of Neurobiology, Care Science and Society, Division of Physiotherapy, Karolinska Institutet, Stockholm, Sweden
- Department of Research, Sunnaas Rehabilitation Hospital, Nesodden, Norway
- Faculty of Health Sciences, Department of Physiotherapy, Oslo Metropolitan University, Oslo, Norway
| |
Collapse
|