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Palmer T, Obst SJ, Aitken CR, Walsh J, Sabapathy S, Adams L, Morris NR. Fixed-intensity exercise tests to measure exertional dyspnoea in chronic heart and lung populations: a systematic review. Eur Respir Rev 2023; 32:230016. [PMID: 37558262 PMCID: PMC10410401 DOI: 10.1183/16000617.0016-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/31/2023] [Indexed: 08/11/2023] Open
Abstract
INTRODUCTION Exertional dyspnoea is the primary diagnostic symptom for chronic cardiopulmonary disease populations. Whilst a number of exercise tests are used, there remains no gold standard clinical measure of exertional dyspnoea. The aim of this review was to comprehensively describe and evaluate all types of fixed-intensity exercise tests used to assess exertional dyspnoea in chronic cardiopulmonary populations and, where possible, report the reliability and responsiveness of the tests. METHODS A systematic search of five electronic databases identified papers that examined 1) fixed-intensity exercise tests and measured exertional dyspnoea, 2) chronic cardiopulmonary populations, 3) exertional dyspnoea reported at isotime or upon completion of fixed-duration exercise tests, and 4) published in English. RESULTS Searches identified 8785 papers. 123 papers were included, covering exercise tests using a variety of fixed-intensity protocols. Three modes were identified, as follows: 1) cycling (n=87), 2) walking (n=31) and 3) other (step test (n=8) and arm exercise (n=2)). Most studies (98%) were performed on chronic respiratory disease patients. Nearly all studies (88%) used an incremental exercise test. 34% of studies used a fixed duration for the exercise test, with the remaining 66% using an exhaustion protocol recording exertional dyspnoea at isotime. Exertional dyspnoea was measured using the Borg scale (89%). 7% of studies reported reliability. Most studies (72%) examined the change in exertional dyspnoea in response to different interventions. CONCLUSION Considerable methodological variety of fixed-intensity exercise tests exists to assess exertional dyspnoea and most test protocols require incremental exercise tests. There does not appear to be a simple, universal test for measuring exertional dyspnoea in the clinical setting.
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Affiliation(s)
- Tanya Palmer
- Griffith University, School of Health Sciences and Social Work, Gold Coast, Australia
- Central Queensland University, School of Health, Medical and Applied Sciences, College of Health Sciences, Bundaberg, Australia
- Menzies Health Institute, Griffith University, Gold Coast, Australia
- Allied Health Research Collaborative, The Prince Charles Hospital, Queensland Health, Chermside, Australia
| | - Steven J Obst
- Central Queensland University, School of Health, Medical and Applied Sciences, College of Health Sciences, Bundaberg, Australia
| | - Craig R Aitken
- Griffith University, School of Health Sciences and Social Work, Gold Coast, Australia
- Menzies Health Institute, Griffith University, Gold Coast, Australia
- Allied Health Research Collaborative, The Prince Charles Hospital, Queensland Health, Chermside, Australia
- Heart and Lung Institute, The Prince Charles Hospital, Chermside, Australia
| | - James Walsh
- Griffith University, School of Health Sciences and Social Work, Gold Coast, Australia
- Allied Health Research Collaborative, The Prince Charles Hospital, Queensland Health, Chermside, Australia
- Heart and Lung Institute, The Prince Charles Hospital, Chermside, Australia
| | - Surendran Sabapathy
- Griffith University, School of Health Sciences and Social Work, Gold Coast, Australia
- Menzies Health Institute, Griffith University, Gold Coast, Australia
| | - Lewis Adams
- Griffith University, School of Health Sciences and Social Work, Gold Coast, Australia
- Menzies Health Institute, Griffith University, Gold Coast, Australia
| | - Norman R Morris
- Griffith University, School of Health Sciences and Social Work, Gold Coast, Australia
- Menzies Health Institute, Griffith University, Gold Coast, Australia
- Allied Health Research Collaborative, The Prince Charles Hospital, Queensland Health, Chermside, Australia
- Heart and Lung Institute, The Prince Charles Hospital, Chermside, Australia
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Cerfoglio S, Capodaglio P, Rossi P, Verme F, Boldini G, Cvetkova V, Ruggeri G, Galli M, Cimolin V. Tele-Rehabilitation Interventions for Motor Symptoms in COVID-19 Patients: A Narrative Review. Bioengineering (Basel) 2023; 10:650. [PMID: 37370581 DOI: 10.3390/bioengineering10060650] [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: 03/13/2023] [Revised: 05/05/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
The COVID-19 pandemic brought new challenges to global healthcare systems regarding the care of acute patients and the delivery of rehabilitation programs to post-acute or chronic patients. Patients who survive severe forms of COVID-19 often report incomplete healing and long-term symptoms. The need of these patients for rehabilitation has been recognized as a public health problem. In this context, the application of tele-rehabilitation has been explored to reduce the burden on healthcare systems. The purpose of this narrative review is to present an overview of the state of the art regarding the application of remote motor rehabilitation programs for paucisymptomatic acute and post-acute COVID-19 patients, with a focus on the motor aspects of tele-rehabilitation. Following an extensive search on PubMed, the Web of Science, and Scopus, specific studies have been reviewed and compared in terms of study objectives and participants, experimental protocols and methods for home-based interventions, functional assessment, and rehabilitation outcomes. Overall, this review suggests the feasibility and the effectiveness of tele-rehabilitation as a promising tool to complement face-to-face rehabilitation interventions. However, further improvements are needed to overcome the limitations and the current lack of knowledge in the field.
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Affiliation(s)
- Serena Cerfoglio
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milano, Italy
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy
| | - Paolo Capodaglio
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy
- Department of Surgical Sciences, Physical Medicine and Rehabilitation, University of Turin, 10126 Turin, Italy
| | - Paolo Rossi
- Clinica Hildebrand, Centro di Riabilitazione Brissago, CH-6614 Brissago, Switzerland
| | - Federica Verme
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy
| | - Gabriele Boldini
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy
| | - Viktoria Cvetkova
- Clinica Hildebrand, Centro di Riabilitazione Brissago, CH-6614 Brissago, Switzerland
| | - Graziano Ruggeri
- Clinica Hildebrand, Centro di Riabilitazione Brissago, CH-6614 Brissago, Switzerland
| | - Manuela Galli
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy
| | - Veronica Cimolin
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, 20133 Milano, Italy
- Orthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, 28824 Piancavallo, Italy
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Abstract
PURPOSE OF REVIEW Breathlessness is a common, distressing, and limiting symptom that many people avoid by reducing their activity. This review discusses exertional tests that can be used for uncovering and assessing breathlessness depending on the person's severity of illness, function, the setting, and aim of the assessment. RECENT FINDINGS Standardized exertional tests are useful to uncover 'hidden' breathlessness earlier in people who may have adapted their physical activity to limit their breathing discomfort. In 'more fit' ambulatory people and outpatients, cardiopulmonary exercise testing is the gold standard for assessing symptom severity, underlying conditions, and mechanisms and treatment effects. Among field tests, the 6-min walk test is not useful for assessing breathlessness. Instead, the 3-min step test and walk test are validated for measuring breathlessness change in chronic obstructive pulmonary disease. In people with more severe illness (who are most often not breathless at rest), reported tests include upper limb exercise or counting numbers aloud, but a valid and useful test for this population is lacking. SUMMARY A framework for selecting the most appropriate test to assess breathlessness validly is proposed, and research needs are identified.
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Affiliation(s)
- Magnus Ekström
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Respiratory Medicine, Allergology and Palliative Medicine, Lund, Sweden
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Aitken CR, Walsh JR, Sabapathy S, Adams L, Morris NR, Stewart GM. Optimising the Dyspnoea Challenge: exertional dyspnoea responses to changing treadmill gradients. Respir Physiol Neurobiol 2022; 302:103915. [PMID: 35500885 DOI: 10.1016/j.resp.2022.103915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/12/2022] [Accepted: 04/26/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND The Dyspnoea Challenge is a two-minute treadmill walk designed to measure exertional dyspnoea(ED). To efficiently individualise workload, we aimed to assess; 1) whether the Dyspnoea Challenge is responsive to 1% changes in treadmill gradient and 2) the minimum gradient variation necessary to generate a clinically meaningful change in ED (≥1 modified Borg scale). METHODS Thirty individuals with COPD(GOLD II-IV) (age: 69.2 ± 9.2 years; FEV1: 49.3 ± 19.1%) completed six Dyspnoea Challenges at a fixed treadmill speed of 3 km·h-1 and at a gradient of between 3% and 8%, performed in random order. ED intensity and leg fatigue were measured using the 0-10 modified Borg scale. Heart rate(HR) and oxygen saturation(SpO2) were monitored continuously. A multidimensional dyspnoea profile(MDP) was used to quantify the discomfort, physical, e.g., work/effort and breathing frequency, and emotional components of ED. RESULTS Higher treadmill gradients generated stronger intensities of ED (3%:2.6 ± 1.8; 4%:2.8 ± 2.2; 5%:3.2 ± 2.2; 6%:3.4 ± 2.2; 7%:3.7 ± 1.8; 8%:4.0 ± 2.1units). Statistical changes were observed in ED(e.g.,3 vs. 5%: P = .03) and the MDP discomfort data(e.g.,4 vs. 6%: P = .04) at ≥ a 2% variation in treadmill gradient. Linear regression found a 4% variation in treadmill gradient corresponded to a rise in ED ≥ 1unit. Increases in ED intensity corresponded to heightened sensations of work/effort(P < .01) and breathing frequency(P < .01). There were no changes in emotional constructs(P = .27). While there was an increase in HR with increasing gradient(P < .01), no differences were observed in end-exercise SpO2(P = .79) or leg fatigue(P = .06). CONCLUSION To significantly change ED, the treadmill gradient must be manipulated by ≥ 2%, with a ≥ 4% change in gradient required to induce a clinically meaningful change in ED.
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Affiliation(s)
- Craig R Aitken
- School of Health Sciences and Social Work, Southport, QLD, Australia; Allied Health Research Collaborative, The Prince Charles Hospital, Brisbane, QLD, Australia; Heart Lung Institute, The Prince Charles Hospital Brisbane, QLD, Australia.
| | - James R Walsh
- Allied Health Research Collaborative, The Prince Charles Hospital, Brisbane, QLD, Australia; Heart Lung Institute, The Prince Charles Hospital Brisbane, QLD, Australia
| | - Surendran Sabapathy
- School of Health Sciences and Social Work, Southport, QLD, Australia; Menzies Health Institute of Queensland, Griffith University, Southport, QLD, Australia
| | - Lewis Adams
- School of Health Sciences and Social Work, Southport, QLD, Australia
| | - Norman R Morris
- School of Health Sciences and Social Work, Southport, QLD, Australia; Allied Health Research Collaborative, The Prince Charles Hospital, Brisbane, QLD, Australia; Heart Lung Institute, The Prince Charles Hospital Brisbane, QLD, Australia; Menzies Health Institute of Queensland, Griffith University, Southport, QLD, Australia
| | - Glenn M Stewart
- School of Health Sciences and Social Work, Southport, QLD, Australia; Allied Health Research Collaborative, The Prince Charles Hospital, Brisbane, QLD, Australia; Heart Lung Institute, The Prince Charles Hospital Brisbane, QLD, Australia; Menzies Health Institute of Queensland, Griffith University, Southport, QLD, Australia
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Kanezaki M, Tamaki A, Terada K, Ebihara S. Linguistic Validation of the Japanese Version of the Multidimensional Dyspnea Profile and Relation to Physical Activity in Patients with COPD. Int J Chron Obstruct Pulmon Dis 2022; 17:223-230. [PMID: 35087271 PMCID: PMC8789226 DOI: 10.2147/copd.s339285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/24/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose This study aimed to develop a linguistically validated Japanese translation of the multidimensional dyspnea profile (MDP) and assess whether worsening of dyspnea’s sensory and affective domains during exercise had detrimental effects on physical activity in stable outpatients with chronic obstructive pulmonary disease (COPD). Materials and Methods The Japanese version of the MDP was prepared in collaboration with Mapi Research Trust (Lyon, France) after the approval of the developer. Physical activity was assessed using a 3-axis accelerometer. Dyspnea upon exertion was investigated using a 3-minute step test. Results The Japanese version of the MDP was obtained and validated linguistically. Air-hunger was significantly associated with total calories from walking (r = − 0.47, p < 0.05), while anxiety and depression were significantly correlated with both the amount and intensity of physical activity (r = − 0.49, p < 0.05, and r = − 0.46, p < 0.05, respectively). Conclusion The Japanese version of the MDP was suggested to reflect both pulmonary functions, ventilatory response during exercise, and intensity and amount of physical activity in patients with COPD.
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Affiliation(s)
- Masashi Kanezaki
- Department of Physical Therapy, School of Health Sciences, Tokyo International University, Kawagoe, Saitama, 350-1197, Japan
- Correspondence: Masashi Kanezaki Department of Physical Therapy, School of Health Sciences, Tokyo International University, 1-13-1 Matobakita, Kawagoe, Saitama, 350-1197, JapanTel +81-49-232-1111Fax +81-49-232-1119 Email
| | - Akira Tamaki
- Department of Physical Therapy, School of Rehabilitation, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
| | - Kunihiko Terada
- Terada Clinic, Respiratory Medicine and General Practice, Himeji, Hyogo, Japan
| | - Satoru Ebihara
- Department of Rehabilitation Medicine, Graduate School of Medicine, Toho University, Tokyo, Japan
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Aitken CR, Sharma P, Louis M, Walsh J, Stewart GM, Sabapathy S, Adams L, Morris NR. Examining the repeatability of a novel test to measure exertional dyspnoea in chronic obstructive pulmonary disease. Respir Physiol Neurobiol 2021; 296:103826. [PMID: 34864520 DOI: 10.1016/j.resp.2021.103826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/10/2021] [Accepted: 11/14/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Exertional dyspnoea(ED) is a hallmark of chronic obstructive pulmonary disease(COPD). We examined the repeatability and face validity of the end-exercise ED(EDend) response during the Dyspnoea Challenge and compared those to the six-minute walk test (6MWT) in COPD. METHODS Twenty-six individuals with COPD(13 Females, age:69 ± 5.5yrs, FEV1:63.4 ± 11.9 %) completed 2 × 6MWTs and 4 x Dyspnoea Challenges on three occasions. The challenge consisted of a two-minute treadmill walk at 80 % of 6MWT speed(3.9 ± 0.5 km·hr-1) at either a low(LIDC:5.3 ± 2%) or high angle of incline(HIDC:9.5 ± 3%). Dyspnoea(0-10 scale), heart rate(HR) and oxygen saturation(SpO2) were monitored continuously. RESULTS Mean 6MWT distance was 488 ± 58 m. End-exercise ED and HR were higher in the HIDC(EDend 6.2 ± 2.0; HR: 123 ± 17beats·min-1) compared to the LIDC(EDend 4.2 ± 2.0; HR: 119 ± 15beats·min-1) and the 6MWT(EDend 4.3 ± 2.0; HR: 115 ± 16beats·min-1)(P < 0.01). SpO2 was not different between 6MWT, LIDC or HIDC(P = 0.34). The intraclass correlation coefficient(ICC) for each intensity was excellent (HIDC, ICC = 0.88, LIDC, ICC = 0.93, P < 0.001) with neither reporting bias(HIDC, P = 0.63; LIDC, P = 0.94). CONCLUSIONS The Dyspnoea Challenge is a simple measure of ED that appears to have both repeatability and face validity. With further optimisation, this test may enhance the field-based clinical assessment of ED.
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Affiliation(s)
- Craig R Aitken
- School of Health Sciences and Social Work, Southport, QLD, Australia; Allied Health Research Collaborative. The Prince Charles Hospital Brisbane, QLD, Australia; Heart Lung Institute. The Prince Charles Hospital Brisbane, QLD, Australia.
| | - Pramod Sharma
- School of Health Sciences and Social Work, Southport, QLD, Australia
| | - Menaka Louis
- School of Health Sciences and Social Work, Southport, QLD, Australia
| | - James Walsh
- School of Health Sciences and Social Work, Southport, QLD, Australia; Allied Health Research Collaborative. The Prince Charles Hospital Brisbane, QLD, Australia; Heart Lung Institute. The Prince Charles Hospital Brisbane, QLD, Australia
| | - Glenn M Stewart
- School of Health Sciences and Social Work, Southport, QLD, Australia; Allied Health Research Collaborative. The Prince Charles Hospital Brisbane, QLD, Australia; Heart Lung Institute. The Prince Charles Hospital Brisbane, QLD, Australia; Menzies Health Institute of Queensland, Griffith University, Southport, QLD, Australia
| | - Surendran Sabapathy
- School of Health Sciences and Social Work, Southport, QLD, Australia; Menzies Health Institute of Queensland, Griffith University, Southport, QLD, Australia
| | - Lewis Adams
- School of Health Sciences and Social Work, Southport, QLD, Australia
| | - Norman R Morris
- School of Health Sciences and Social Work, Southport, QLD, Australia; Allied Health Research Collaborative. The Prince Charles Hospital Brisbane, QLD, Australia; Heart Lung Institute. The Prince Charles Hospital Brisbane, QLD, Australia; Menzies Health Institute of Queensland, Griffith University, Southport, QLD, Australia
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Kanezaki M, Terada K, Tanabe N, Shima H, Hamakawa Y, Sato S. Exertional multidimensional dyspnoea predicts exacerbation in stable outpatients with COPD. ERJ Open Res 2021; 7:00150-2021. [PMID: 34671667 PMCID: PMC8521019 DOI: 10.1183/23120541.00150-2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 07/20/2021] [Indexed: 12/03/2022] Open
Abstract
Dyspnoea is a risk factor for mortality in patients with chronic obstructive pulmonary disease (COPD) [1]. Awareness of the magnitude of respiratory drive to the respiratory muscles contributes to dyspnoea [2]. In line with this mechanism, elevated respiratory neural drive during hospitalisation and at hospital discharge, predicts readmission and mortality in patients with acute exacerbation of COPD [3, 4]. Furthermore, patients with COPD who experienced frequent exacerbations had heightened dyspnoea due to hypercapnia, compared with those with infrequent exacerbations [5]. Therefore, changes in the afferent and efferent loops involved in dyspnoea contribute to COPD exacerbations. This study assessed the sensory and emotional aspects of breathlessness under the same exercise load in patients with COPD. Breathing discomfort with constant exercise predicted exacerbations within 1 year.https://bit.ly/3l2oA4A
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Affiliation(s)
- Masashi Kanezaki
- Dept of Physical Therapy, Faculty of Health Care Sciences, Himeji Dokkyo University, Himeji, Japan
| | - Kunihiko Terada
- Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan
| | - Naoya Tanabe
- Dept of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Shima
- Dept of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yoko Hamakawa
- Dept of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Susumu Sato
- Dept of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Saey D, Bellocq A, Gephine S, Lino A, Reychler G, Villiot-Danger E. [Which physical tests for which objectives in pulmonary rehabilitation?]. Rev Mal Respir 2021; 38:646-663. [PMID: 33895033 DOI: 10.1016/j.rmr.2021.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/25/2021] [Indexed: 11/19/2022]
Abstract
Chronic respiratory disease is a major cause of morbidity and mortality worldwide and an important cause of disability including a reduction of exercise, functional and muscle capacity contributing to a decreased quality of life. In the context of pulmonary rehabilitation, a thorough patient-centered outcome assessment, including not only measures of lung function, but also exercise functional and muscle capacity, is imperative for a comprehensive disease management. Assessment of these impairments and dysfunctions with appropriate and change-sensitive procedures is thus necessary for personalizing the physical interventions and assessing the short- and long-term effectiveness of the intervention. The clinician currently has a wide variety of tests and measurements available to assess the physical and functional capacity of people with chronic respiratory disease. The aim of this review is to provide a pragmatic synthesis of the physical, functional and muscle capacity tests most commonly used in pulmonary rehabilitation. Ultimately, it should help the clinician to identify the relevant evaluations according to the objectives of the patients but also according to the available resources, the setting of pulmonary rehabilitation and the specific qualities of each test.
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Affiliation(s)
- D Saey
- Département de réadaptation, faculté de médecine, université Laval, Québec, Canada; Institut universitaire de cardiologie et de pneumologie de Québec-Université Laval, 2725, chemin Sainte-Foy, Pavillon U 4766, G1 V 4G5 Québec, Canada.
| | - A Bellocq
- Service des explorations fonctionnelles de la respiration, de l'exercice et de la dyspnée, département médico-universitaire « APPROCHES », Sorbonne Université, groupe hospitalier Pitié-Salpêtrière-Charles-Foix, hôpitaux universitaires Pitié-Salpêtrière, AP-HP, Paris, France; Inserm, Sorbonne Université, UMRS1158 Neurophysiologie respiratoire expérimentale et clinique, Paris, France
| | - S Gephine
- Institut universitaire de cardiologie et de pneumologie de Québec-Université Laval, 2725, chemin Sainte-Foy, Pavillon U 4766, G1 V 4G5 Québec, Canada; Univ. Lille, Univ. Artois, Univ. Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, 59000 Lille, France
| | - A Lino
- Centre médical de Bayère, 30, route du Vieux-Château, 69380 Charnay, France
| | - G Reychler
- Université catholique de Louvain-UCLouvain, Louvain, Belgique; Institute of Experimental and Clinical Research (IREC), Louvain, Belgique
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Beaumont M, Le Garrec M, Péran L, Berriet AC, Le Ber C, Pichon R, Cabillic M. Determination of the minimal important difference for Dyspnoea-12 questionnaire in patients with COPD, after pulmonary rehabilitation. THE CLINICAL RESPIRATORY JOURNAL 2021; 15:413-419. [PMID: 33277761 DOI: 10.1111/crj.13318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
INTRODUCTION The authors of the international task force about the management of Dyspnoea recommend assessing sensory and affective components of dyspnoea. The Dyspnoea-12 questionnaire (D-12) allows to assess both components of dyspnoea. D-12 is valid and reliable but its sensitivity to pulmonary rehabilitation was not studied. The aim of this study was to estimate the minimal important difference (MID) for D-12 in COPD patients undergoing a pulmonary rehabilitation programme (PRP). METHODS Severe or very severe COPD patients undergoing a PRP were included. Dyspnoea was assessed using D-12, MMRC dyspnoea scale, London chest of Activity of Daily Living questionnaire (LCADL). Quality of life was assessed using Saint-George respiratory questionnaire (SGRQ) and COPD assessment Test (CAT); exercise capacity using 6-Minute walk Test (6MWT) and 1-minute sit to-stand test (1STST). The MID was evaluated using distribution and anchor-based methods. RESULTS Sixty patients (age: 64.4 ± 8.2; FEV1 (%): 28.6 ± 8.1) were included. At the end of the PRP, patients had significantly decreased their dyspnoea measured with D-12, MMRC, LCADL (D-12:23.9 ± 8.9 to 17.6 ± 9.4; MMRC: 3 ± 0.7 to 2.2 ± 1.1, LCADL: 38 ± 13.9 to 31.6 ± 11; p < 0.0001). Using the distribution-based analysis, MID of -2.67 (standard error of measurement) or -4.45 (standard deviation) was found. According to methodology, we could only use SGRQ as anchor. With SGRQ as anchor, the receiver operating characteristic curve identified MID for the change in D-12 at -6.1 (sensibility: 58%, specificity: 79%). The correlation with SGRQ was modest (r = 0.33), so the calculated MID should be interpreted with caution. CONCLUSION D-12 is a good tool to assess the decrease of dyspnoea after PR. We propose MID of -6 points. However, Future estimates of MID for the D-12 should use anchors that are more strongly correlated with it.
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Affiliation(s)
- Marc Beaumont
- Pulmonary rehabilitation unit, Morlaix Hospital Centre, Morlaix, France
- European University of Occidental Brittany, EA3878, Brest, France
| | - Mélanie Le Garrec
- Institut de formation en Pédicurie-Podologie, Ergothérapie, Masso-Kinésithérapie (IFEPK), Rennes, France
| | - Loic Péran
- Pulmonary rehabilitation unit, Morlaix Hospital Centre, Morlaix, France
| | | | - Catherine Le Ber
- Pulmonary rehabilitation unit, Morlaix Hospital Centre, Morlaix, France
| | - Romain Pichon
- Institut de formation en Pédicurie-Podologie, Ergothérapie, Masso-Kinésithérapie (IFEPK), Rennes, France
- Université de Rennes 2 UFR APS, M2S - EA 7470, Rennes, France
| | - Michel Cabillic
- Institut régional de formations aux métiers de la rééducation et de la réadaptation des Pays-de-la-Loire, Saint-Sébastien-sur-Loire, France
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10
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Kanezaki M, Terada K, Tanabe N, Shima H, Hamakawa Y, Sato S. Effects of Sarcopenia on Ventilatory Behavior and the Multidimensional Nature of Dyspnea in Patients With Chronic Obstructive Pulmonary Disease. J Am Med Dir Assoc 2021; 22:827-833. [PMID: 33667425 DOI: 10.1016/j.jamda.2021.01.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/20/2021] [Accepted: 01/26/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES This study tested the hypothesis that sarcopenia, a common extrapulmonary feature of chronic obstructive pulmonary disease (COPD), can affect ventilatory behavior, and worsen the multidimensional nature of dyspnea in patients with COPD. DESIGN Cross-sectional survey study. SETTING and Participants: Stable outpatients with COPD encountered in general practice and respiratory clinic. METHOD Sarcopenia was diagnosed according to an appendicular skeletal muscle mass index based on measurements of electrical impedance and handgrip strength. Exertional dyspnea was tested using a 3-minute Step Test and a 6-minute Walk Test. The dimensions of dyspnea were assessed by a multidimensional dyspnea profile. RESULTS Of 60 stable patients with COPD, 16 met the criteria for sarcopenia. During the 3-minute Step Test, minute ventilation as a proportion of exercise time, tidal volume as a proportion of inspiratory capacity, the change in inspiratory capacity, and ventilation as a proportion of maximal voluntary ventilation did not differ between patients with and without sarcopenia. Patients with sarcopenia exhibited lower evolution of tidal volume, higher evolution of respiratory frequency versus ventilation and breathing discomfort on the 3-minute Step Test, as well as increased physical breathing effort on the 6-minute Walk Test, compared with those without sarcopenia. In a multivariable model adjusted using inverse probability weighting, sarcopenia was independently associated with breathing discomfort during the 3-minute Step Test and physical breathing effort during the 6-minute Walk Test. CONCLUSIONS AND IMPLICATIONS Sarcopenia may be associated with shallow breathing and diverse sensory and affective components of exertional dyspnea in patients with COPD. The study indicates that improvement of the rapid breathing pattern may offer unique ways to alleviate dyspnea in older patients with COPD and sarcopenia.
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Affiliation(s)
- Masashi Kanezaki
- Department of Physical Therapy, Faculty of Health Care Sciences, Himeji Dokkyo University, Himeji, Hyogo, Japan.
| | - Kunihiko Terada
- Terada Clinic, Respiratory Medicine and General Practice, Himeji, Hyogo, Japan
| | - Naoya Tanabe
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| | - Hiroshi Shima
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| | - Yoko Hamakawa
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| | - Susumu Sato
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
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11
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Vilarinho R, Caneiras C, Montes AM. Measurement properties of step tests for exercise capacity in COPD: A systematic review. Clin Rehabil 2020; 35:578-588. [PMID: 33155491 PMCID: PMC8027930 DOI: 10.1177/0269215520968054] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objective: To determine the level of evidence of the measurement properties (validity, reliability, and responsiveness) and interpretability of the step tests available for assessing the exercise capacity in patients with chronic obstructive pulmonary disease. Data sources: The data sources Web of Science, MEDLINE, PubMed, PEDro, CENTRAL of Cochrane Library, and Scopus were searched up to June 26, 2020. Review methods: Studies of any design that reported results for any measurement property of the step tests for assessing the exercise capacity in COPD patients were selected. One reviewer extracted the data, and two reviewers independently rated the level of evidence by using the Consensus-Based Standards for the Selection of Health Measurements Instruments recommendations. Results: Thirty-one studies were included in the data synthesis. Chester Step Test, Modified Incremental Step Test, two-, three-, four-, and six-Minute Step Test, Paced Step Test, and six-Minute Stepper Test were identified. A step test protocol was also found. The level of evidence of their results for the measurement properties was mostly determined as “low” to “very low.” The best level of evidence found was for the six-minute stepper test: “high” on construct validity (r = 0.56–0.71); and “moderate” on criterion validity (r = 0.36–0.69), and responsiveness (r = 0.26–0.34). Conclusion: The general level of evidence of the measurement properties of the step tests is “low” to “very low” for assessing exercise capacity in patients with chronic obstructive pulmonary disease, which can limit their application in clinical practice. The six-minute Stepper Test is currently the most appropriate step test available.
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Affiliation(s)
- Rui Vilarinho
- Department of Physiotherapy and Center for Rehabilitation Research, School of Health, Polytechnic Institute of Porto, Porto, Portugal.,Healthcare Department, Nippon Gases Portugal, Lisbon, Portugal
| | - Cátia Caneiras
- Healthcare Department, Nippon Gases Portugal, Lisbon, Portugal.,Microbiology Research Laboratory on Environmental Health, Institute of Environmental Health, Faculty of Medicine, University of Lisbon, Lisbon, Portugal
| | - António Mesquita Montes
- Department of Physiotherapy and Center for Rehabilitation Research, School of Health, Polytechnic Institute of Porto, Porto, Portugal.,Department of Physiotherapy, Santa Maria Health School, Porto, Portugal
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12
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Holland AE, Malaguti C, Hoffman M, Lahham A, Burge AT, Dowman L, May AK, Bondarenko J, Graco M, Tikellis G, Lee JY, Cox NS. Home-based or remote exercise testing in chronic respiratory disease, during the COVID-19 pandemic and beyond: A rapid review. Chron Respir Dis 2020; 17:1479973120952418. [PMID: 32840385 PMCID: PMC7450293 DOI: 10.1177/1479973120952418] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objectives: To identify exercise tests that are suitable for home-based or remote
administration in people with chronic lung disease. Methods: Rapid review of studies that reported home-based or remote administration of
an exercise test in people with chronic lung disease, and studies reporting
their clinimetric (measurement) properties. Results: 84 studies were included. Tests used at home were the 6-minute walk test
(6MWT, two studies), sit-to-stand tests (STS, five studies), Timed Up and Go
(TUG, 4 studies) and step tests (two studies). Exercise tests administered
remotely were the 6MWT (two studies) and step test (one study). Compared to
centre-based testing the 6MWT distance was similar when performed outdoors
but shorter when performed at home (two studies). The STS, TUG and step
tests were feasible, reliable (intra-class correlation coefficients
>0.80), valid (concurrent and known groups validity) and moderately
responsive to pulmonary rehabilitation (medium effect sizes). These tests
elicited less desaturation than the 6MWT, and validated methods to prescribe
exercise were not reported. Discussion: The STS, step and TUG tests can be performed at home, but do not accurately
document desaturation with walking or allow exercise prescription. Patients
at risk of desaturation should be prioritised for centre-based exercise
testing when this is available.
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Affiliation(s)
- Anne E Holland
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia.,Department of Physiotherapy, Austin Health, Melbourne, Victoria, Australia.,Institute for Breathing and Sleep, Australia
| | - Carla Malaguti
- Department of Cardiorespiratory and Skeletal muscle, 28113Federal University of Juiz de Fora, São Pedro, Juiz de Fora, Brazil
| | - Mariana Hoffman
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia
| | - Aroub Lahham
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia
| | - Angela T Burge
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia.,Department of Physiotherapy, Austin Health, Melbourne, Victoria, Australia.,Institute for Breathing and Sleep, Australia
| | - Leona Dowman
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia.,Department of Physiotherapy, Austin Health, Melbourne, Victoria, Australia.,Institute for Breathing and Sleep, Australia
| | - Anthony K May
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia.,School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition (IPAN), Deakin University, Melbourne, Victoria, Australia
| | - Janet Bondarenko
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia
| | - Marnie Graco
- Institute for Breathing and Sleep, Australia.,Allied Health, 5392Alfred Health, Melbourne, Victoria, Australia
| | - Gabriella Tikellis
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia
| | - Joanna Yt Lee
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia
| | - Narelle S Cox
- Department of Allergy, Immunology and Respiratory Medicine, 2541Monash University, Clayton, Victoria, Australia.,Institute for Breathing and Sleep, Australia
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13
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Abstract
PURPOSE OF REVIEW Exertional breathlessness is common and pervasive across various chronic disease populations. To accurately assess response to intervention and optimize clinical (symptom) management, detailed assessment of exertional breathlessness is imperative. This review provides an update on current approaches to assess exertional breathlessness and presents the need for individualized assessment of breathlessness standardized for the level of exertion. RECENT FINDINGS Breathlessness assessment tools commonly invite people to recall their breathlessness while at rest with reference to activities of daily living. To directly quantify breathlessness, however, requires assessment of the dimensions of breathlessness (e.g., sensory intensity, quality, and unpleasantness) in response to a standardized exercise stimulus. Different exercise stimuli (e.g., self-paced, incremental, and constant work rate exercise tests) have been used to elicit a breathlessness response. Self-paced (e.g., 6-min walk test) and incremental exercise tests assess exercise tolerance or endurance, and are not recommended for assessment of exertional breathlessness. Constant work rate tests, however, including recently validated 3-min constant-rate stair stepping and walking tests, standardize the exercise stimulus to enable the breathlessness response to be directly quantified and monitored over time. SUMMARY To adequately guide symptom management and assess intervention efficacy, clinicians and researchers should assess breathlessness with multidimensional assessment tools in response to a standardized and individualized exercise stimulus.
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14
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Why treatment efficacy on breathlessness in laboratory but not daily life trials? The importance of standardized exertion. Curr Opin Support Palliat Care 2020; 13:179-183. [PMID: 31246594 DOI: 10.1097/spc.0000000000000444] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
PURPOSE OF REVIEW Treatments for chronic breathlessness, including opioids and oxygen, have shown efficacy in the controlled laboratory setting, whereas effects have been inconsistent or absent in trials in daily life. This review discusses the lack of standardized exertion as a potential cause of false negative findings for breathlessness in daily life. RECENT FINDINGS The level of breathlessness can be modified by patients by changing their level of physical activity. Effects of opioids and oxygen have been shown at standardized level of exertion (iso-time) but not at the end of symptom-limited (peak) exertion. Trials in daily life reporting no effects on breathlessness did not standardize the exertion or employed insensitive methods, such as the 6-min walk test that should not be used for measuring breathlessness. Novel tests - the 3-min walk and stepping tests have been validated in chronic obstructive pulmonary disease and are responsive for measuring change in breathlessness. SUMMARY Breathlessness should be measured at standardized exertion, otherwise treatment effects may be biased or overlooked. Tests for valid measurement of breathlessness in clinical practice and daily life are available and emerging.
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15
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Lewthwaite H, Koch EM, Ekström M, Hamilton A, Bourbeau J, Maltais F, Borel B, Jensen D. Predicting the rate of oxygen consumption during the 3-minute constant-rate stair stepping and shuttle tests in people with chronic obstructive pulmonary disease. J Thorac Dis 2020; 12:2489-2498. [PMID: 32642156 PMCID: PMC7330369 DOI: 10.21037/jtd.2020.03.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background The 3-minute constant-rate stair stepping (3-min CRSST) and constant-speed shuttle tests (3-min CSST) were developed to assess breathlessness in response to a standardized exercise stimulus. Estimating the rate of oxygen consumption (V’O2) during these tests would assist clinicians to relate the stepping/shuttle speeds that elicit breathlessness to daily physical activities with a similar metabolic demand. This study: (I) developed equations to estimate the V’O2 of these tests in people with chronic obstructive pulmonary disease (COPD); and (II) compared the newly developed and American College of Sports Medicine (ACSM) metabolic equations for estimating the V’O2 of these tests. Methods This study was a retrospective analysis of people with COPD who completed a 3-min CRSST (n=98) or 3-min CSST (n=69). Multivariate linear regression estimated predictors (alpha <0.05) of V’O2 to construct COPD-specific metabolic equations. The mean squared error (MSE) of the COPD-specific and ACSM equations was calculated and compared. Bland-Altman analyses evaluated level of agreement between measured and predicted V’O2 using each equation; limits of agreement (LoA) and patterns of bias were compared. Results Stepping rate/shuttle speed and body mass were identified as significant predictors of V’O2. The MSE of the COPD-specific equations was 0.05 L·min−1 for both tests. Mean difference between measured and predicted V’O2 was 0.00 L·min−1 (95% LoA −0.46, 0.46) and 0.00 L·min−1 (95% LoA −0.44, 0.44) for the 3-min CRSST and 3-min CSST, respectively. For the ACSM metabolic equations, the MSE was 0.10 L·min−1 and 0.18 L·min−1 for the 3-min CRSST and 3-min CSST, respectively. The ACSM metabolic equations underestimated V’O2 of the 3-min CRSST by −0.18 L·min−1 (95% LoA −0.68, 0.32), and overestimated V’O2 of the 3-min CSST by 0.35 L·min−1 (95% LoA −0.14, 0.84). Conclusions This study presents metabolic equations to predict V’O2 of the 3-min CRSST and 3-min CSST for people with COPD that are more accurate than the ACSM metabolic equations.
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Affiliation(s)
- Hayley Lewthwaite
- Clinical Exercise and Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montréal, Canada.,Innovation, Implementation and Clinical Translation in Health (IIMPACT), School of Health Sciences, University of South Australia, Adelaide, Australia
| | - Emily M Koch
- Clinical Exercise and Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montréal, Canada
| | - Magnus Ekström
- Department of Clinical Sciences, Division of Respiratory Medicine and Allergology, Lund University, Lund, Sweden
| | - Alan Hamilton
- Boehringer Ingelheim Canada, Burlington, Ontario, Canada
| | - Jean Bourbeau
- Research Institute of the McGill University Health Centre, Translational Research in Respiratory Diseases Program, Montréal, Canada.,Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, McGill University Health Centre, Montréal, Canada.,Division of Respiratory Medicine, Faculty of Medicine, McGill University, Montréal, Canada
| | - François Maltais
- Centre de recherche, Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Québec City, Canada
| | - Benoit Borel
- Laboratoire Handicap, Activité, Vieillissement, Autonomie, Environnement, Faculté des Sciences et Techniques, Université de Limoges, Limoges, France
| | - Dennis Jensen
- Clinical Exercise and Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montréal, Canada.,Research Institute of the McGill University Health Centre, Translational Research in Respiratory Diseases Program, Montréal, Canada.,Respiratory Epidemiology and Clinical Research Unit, Montreal Chest Institute, McGill University Health Centre, Montréal, Canada.,Division of Respiratory Medicine, Faculty of Medicine, McGill University, Montréal, Canada.,Research Centre for Physical Activity and Health, Faculty of Education, McGill University, Montréal, Canada
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16
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Ekström M, Chang S, Johnson MJ, Fazekas B, Kochovska S, Huang C, Currow DC. Low agreement between mMRC rated by patients and clinicians: implications for practice. Eur Respir J 2019; 54:13993003.01517-2019. [PMID: 31624113 DOI: 10.1183/13993003.01517-2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/06/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Magnus Ekström
- Dept of Clinical Sciences, Division of Respiratory Medicine and Allergology, Lund University, Lund, Sweden .,IMPACCT, Faculty of Health, University of Technology Sydney, Ultimo, Australia
| | - Sungwon Chang
- IMPACCT, Faculty of Health, University of Technology Sydney, Ultimo, Australia
| | - Miriam J Johnson
- IMPACCT, Faculty of Health, University of Technology Sydney, Ultimo, Australia.,Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, UK
| | - Belinda Fazekas
- IMPACCT, Faculty of Health, University of Technology Sydney, Ultimo, Australia
| | - Slavica Kochovska
- IMPACCT, Faculty of Health, University of Technology Sydney, Ultimo, Australia
| | - Chao Huang
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, UK
| | - David C Currow
- IMPACCT, Faculty of Health, University of Technology Sydney, Ultimo, Australia.,Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, UK
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17
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Physiological and perceptual responses to exercise according to locus of symptom limitation in COPD. Respir Physiol Neurobiol 2019; 273:103322. [PMID: 31629879 DOI: 10.1016/j.resp.2019.103322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/12/2019] [Accepted: 10/14/2019] [Indexed: 01/28/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease, with pulmonary and extra-pulmonary factors contributing to exercise intolerance. The primary self-reported exercise-limiting symptom may reflect the primary pathophysiological factor contributing to exercise intolerance. We compared physiological and perceptual responses at the symptom-limited peak of incremental cardiopulmonary cycle exercise testing between people with COPD reporting breathlessness (B, n = 34), leg discomfort (LD, n = 16), or a combination of B and LD (BOTH, n = 42) as their main exercise-limiting symptom(s). Despite similarly impaired health status, symptomology and peak exercise capacity, the B group had greater restrictive constraints on tidal volume expansion at end-exercise and was more likely to report unpleasant qualities of exertional breathlessness than LD and BOTH groups. In conclusion, reporting breathlessness as the primary exercise-limiting symptom indicated the presence of distinct lung pathophysiology and symptom perception during exercise in people with COPD.
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18
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Müller PDT, Nogueira JHZ, Augusto TRDL, Chiappa GR. Faster oxygen uptake, heart rate, and ventilatory kinetics in stepping compared with cycle ergometry in patients with COPD during moderate-intensity exercise. Appl Physiol Nutr Metab 2019; 44:879-885. [PMID: 30649910 DOI: 10.1139/apnm-2018-0662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Step tests are a stressful and feasible cost-effective modality to evaluate aerobic performance. However, the eccentric in addition to concentric muscle contractions of the legs on stepping emerge as a potential speeding factor for cardioventilatory and metabolic adjustments towards a steady-state, since eccentric contractions would prompt an earlier and stronger mechanoreceptor activation, as well as higher heart rate/cardiac output adjustments to the same metabolic demand. Moreover, shorter tests are ideal for exercise-limited subjects. Nine subjects with chronic obstructive pulmonary disease were invited to participate in comprehensive lung function tests and constant work tests performed on different days at a 90% gas exchange threshold for 6 min, in single-step tests or cycle ergometry. After careful monoexponential regression modelling, statistically relevant faster phase II time constants for oxygen uptake (45 ± 18 s vs 53 ± 17 s, p = 0.017) and minute ventilation (61 ± 13 s vs 74 ± 17 s, p = 0.027) were observed in the 6-min step tests compared with cycle ergometry, respectively. Despite an absence of heart rate time constant difference (43 ± 20 s vs 69 ± 46 s, p = 0.167), there was a significantly faster rate constant toward a steady state for heart rate (p = 0.02). In addition, 4-min compared with 6-min analysis presented similar results (p > 0.05), providing an appropriate steady-state. We conclude that step tests might elicit faster time constants compared with cycle ergometry, at the same average metabolic level, and 4-min analysis has similar mean errors compared with 6-min analysis within an acceptable range. New studies, comprising mechanisms and detailed physiological backgrounds, are necessary.
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Affiliation(s)
- Paulo de Tarso Müller
- a Laboratory of Respiratory Pathophysiology (LAFIR), Maria Aparecida Pedrossian Universitary Hospital (HUMAP), Campo Grande, MS 79040-630, Brazil
| | - João Henrique Zardetti Nogueira
- a Laboratory of Respiratory Pathophysiology (LAFIR), Maria Aparecida Pedrossian Universitary Hospital (HUMAP), Campo Grande, MS 79040-630, Brazil
| | - Tiago Rodrigues de Lemos Augusto
- a Laboratory of Respiratory Pathophysiology (LAFIR), Maria Aparecida Pedrossian Universitary Hospital (HUMAP), Campo Grande, MS 79040-630, Brazil
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19
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Ekström M, Elmberg V, Lindow T, Wollmer P. Breathlessness measurement should be standardised for the level of exertion. Eur Respir J 2018; 51:51/5/1800486. [DOI: 10.1183/13993003.00486-2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 03/09/2018] [Indexed: 11/05/2022]
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20
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Functional Tests in Chronic Obstructive Pulmonary Disease, Part 2: Measurement Properties. Ann Am Thorac Soc 2017; 14:785-794. [DOI: 10.1513/annalsats.201609-734as] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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