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Wender CLA, Arbelaez O, Tong TT, Salter A, Wylie GR, Motl RW, Sandroff BM, Chiaravalloti ND. Rationale and methodology for examining the combination of aerobic exercise and cognitive rehabilitation on new learning and memory in persons with multiple sclerosis and mobility disability: Protocol for a randomized controlled trial. Contemp Clin Trials 2024; 144:107630. [PMID: 39002892 DOI: 10.1016/j.cct.2024.107630] [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: 03/13/2024] [Revised: 06/14/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024]
Abstract
BACKGROUND This paper describes the protocol for a Phase I/II, parallel-group, single-blind randomized controlled trial (RCT). The RCT investigates the combined effects of 12-weeks of aerobic exercise training (AET) integrated with virtual reality (VR) and cognitive rehabilitation (CR) on new learning and memory in 78 persons with multiple sclerosis (MS) who have mobility disability and objective impairments in learning and memory. METHODS Participants will undergo baseline assessments consisting of neuropsychological testing, neuroimaging, self-report questionnaires, and cardiorespiratory fitness. Participants will then be randomized into one of two conditions using concealed allocation: aerobic cycling exercise that incorporates VR combined with CR or stretching and toning (i.e., active control; S/T) combined with CR. Participants will be masked regarding the intent of the conditions. After 7-weeks of exercise alone, the 5-week Kessler Foundation modified Story Memory Technique (KF-mSMT®) will be integrated into the training. After the 12-week training period, participants will complete the same measures as at baseline administered by treatment-blinded assessors. Primary study outcomes include new learning and memory (NLM) measured by a small battery of neuropsychological assessments that assess list learning (California Verbal Learning Test-II), prose memory (Memory Assessment Scale), visuospatial memory (Brief Visuospatial Memory Test-Revised), and everyday memory (Ecological Memory Simulations). Secondary study outcomes include neuroimaging outcomes of hippocampal structure, function, and connectivity. CONCLUSION If successful, this trial will provide the first Class I evidence supporting the unique combination of aerobic cycling exercise with VR and CR for treating MS-related learning and memory impairments in persons with mobility disability.
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Affiliation(s)
- Carly L A Wender
- Center for Neuropsychology & Neuroscience Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers-NJ Medical School, Newark, NJ, USA.
| | - Odalys Arbelaez
- Center for Neuropsychology & Neuroscience Research, Kessler Foundation, East Hanover, NJ, USA
| | - Tien T Tong
- Center for Neuropsychology & Neuroscience Research, Kessler Foundation, East Hanover, NJ, USA
| | - Amber Salter
- Department of Neurology, University of Texas Southwestern, Dallas, TX, USA
| | - Glenn R Wylie
- Center for Neuropsychology & Neuroscience Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers-NJ Medical School, Newark, NJ, USA
| | - Robert W Motl
- Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL, USA
| | - Brian M Sandroff
- Center for Neuropsychology & Neuroscience Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers-NJ Medical School, Newark, NJ, USA
| | - Nancy D Chiaravalloti
- Center for Neuropsychology & Neuroscience Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers-NJ Medical School, Newark, NJ, USA
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Maden T, Polat H, Cengiz EK, Kahraman T. Validity and reliability of the Six-Minute Pegboard Ring Test for assessing functional capacity and upper limb function in persons with multiple sclerosis. Mult Scler Relat Disord 2024; 90:105836. [PMID: 39197349 DOI: 10.1016/j.msard.2024.105836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/24/2024] [Accepted: 08/19/2024] [Indexed: 09/01/2024]
Abstract
BACKGROUND The timed walk test is essential for assessing the functional capacity of persons with multiple sclerosis (MS). When a decline in ambulation ability and loss of function in the later stages of MS is observed, it is imperative to utilize alternative methods for measuring functional capacity. OBJECTIVE To investigate the validity and reliability of the Six-Minute Pegboard Ring Test (6PBRT) in persons with MS. METHODS Forty-three persons with MS were included in this study. Disease severity was quantified using the Expanded Disability Status Scale (EDSS). The 6PBRT was employed to assess upper extremity function during exercise stress, and vital signs were monitored pre- and post-test. Muscle strength was measured using a digital dynamometer for shoulder flexor, shoulder abductor, and grip strength, in addition to a hand dynamometer. Manual dexterity was evaluated through the 9-Hole Peg Test (9HPT), and walking endurance was assessed using the 2-Minute Walk Test (2MWT). Test-retest reliability was computed using the intraclass correlation coefficient (ICC). RESULTS The ICC value for the 6PBRT was 0.96 (95% CI 0.92-0.97), indicating excellent test-retest reliability. Significant differences in vital signs were observed before and after conducting the 6PBRT (p < 0.05). A strong negative correlation was found between the 6PBRT score and EDSS (r = -0.650, p < 0.001). The 9HPT of the dominant side demonstrated a moderate correlation with the 6PBRT score (r = -0.502, p = 0.001), whereas no significant correlation was shown between the non-dominant side 9HPT and the 6PBRT score (p > 0.05). Moreover, a positive moderate correlation was shown between the performance on the 2MWT and the 6PBRT score (r = 0.413, p = 0.006). However, no significant correlation was detected between the proximal muscle strength of the upper extremity, handgrip strength, and the 6PBRT score in individuals with multiple sclerosis (p > 0.05). CONCLUSION The 6PBRT is a reliable and valid tool to evaluate upper extremity function and exercise capacity in persons with MS.
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Affiliation(s)
- Tuba Maden
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gaziantep University, Gaziantep, Turkey.
| | - Hakan Polat
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, SANKO University, Gaziantep, Turkey.
| | | | - Turhan Kahraman
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Izmir Katip Celebi University, Turkey.
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Taul-Madsen L, Hvid LG, Sellebjerg F, Christensen JR, Ratzer R, Sejbæk T, Svendsen KB, Papp V, Højsgaard Chow H, Lundbye-Jensen J, Dawes H, Dalgas U. Study protocol: effects of exercise booster sessions on preservation of exercise-induced adaptations in persons with multiple sclerosis, a multicentre randomised controlled trial-the MS BOOSTER trial. BMJ Open 2024; 14:e085241. [PMID: 39153792 PMCID: PMC11331840 DOI: 10.1136/bmjopen-2024-085241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 07/16/2024] [Indexed: 08/19/2024] Open
Abstract
INTRODUCTION Multiple sclerosis (MS) causes a broad range of symptoms, with physical function being one of the most disabling consequences according to patients themselves. Exercise effectively improves lower extremity physical function. Nonetheless, it is unknown which exercise modality is most effective and it remains challenging to keep persons with MS adhering to exercise over a longer period. Therefore, the present study aims to investigate how exercise booster sessions (EBS) influence the sustainability of exercise-induced effects on physical function, and furthermore, to investigate which exercise modality (aerobic training or resistance training) is most effective in terms of improving physical function. MATERIALS AND METHODS This study is a multi-arm, parallel-group, open-label multicentre randomised controlled trial investigating the effects of EBS. Participants (n=150) are initially randomised to 12 weeks of either resistance training+usual care, aerobic training+usual care or usual care. After 12 weeks of intervention, participants in the exercise groups will again be randomised to either EBS+usual care or usual care during a 40-week follow-up period. The primary outcome is physical function (composite score based on 6-min walk test and five-time sit to stand), and the secondary outcomes are fatigue, cognition, physical activity, symptoms of depression and quality of life. ETHICS AND DISSEMINATION The study is approved by the Central Denmark Region Committees on Health Research Ethics (1-10-72-237-21) and is registered at the Danish Data Protection Agency (2016-051-000001) and at Clinicaltrials.gov (NCT04913012). All study findings will be published in scientific peer-reviewed journals and presented at scientific conferences. TRIAL REGISTRATION NUMBER NCT04913012.
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Affiliation(s)
| | - Lars G Hvid
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus & Ry, Denmark
- The Danish MS Hospitals, Ry, Denmark
| | - Finn Sellebjerg
- Danish Multiple Sclerosis Centre, Rigshospitalet, Kobenhavn, Denmark
| | | | - Rikke Ratzer
- Danish Multiple Sclerosis Centre, Rigshospitalet, Kobenhavn, Denmark
| | - Tobias Sejbæk
- Department of Neurology, Sydvestjysk Sygehus, Esbjerg, Denmark
| | | | - Viktoria Papp
- Department of Neurology, Odense Universitetshospital, Odense, Denmark
| | | | - Jesper Lundbye-Jensen
- Department of Nutrition, Exercise and Sports, Københavns Universitet, Kobenhavn, Denmark
| | - Helen Dawes
- Medical School, University of Exeter, Exeter, UK
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Keller B, Receno CN, Franconi CJ, Harenberg S, Stevens J, Mao X, Stevens SR, Moore G, Levine S, Chia J, Shungu D, Hanson MR. Cardiopulmonary and metabolic responses during a 2-day CPET in myalgic encephalomyelitis/chronic fatigue syndrome: translating reduced oxygen consumption to impairment status to treatment considerations. J Transl Med 2024; 22:627. [PMID: 38965566 PMCID: PMC11229500 DOI: 10.1186/s12967-024-05410-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 06/17/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND Post-exertional malaise (PEM), the hallmark symptom of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), represents a constellation of abnormal responses to physical, cognitive, and/or emotional exertion including profound fatigue, cognitive dysfunction, and exertion intolerance, among numerous other maladies. Two sequential cardiopulmonary exercise tests (2-d CPET) provide objective evidence of abnormal responses to exertion in ME/CFS but validated only in studies with small sample sizes. Further, translation of results to impairment status and approaches to symptom reduction are lacking. METHODS Participants with ME/CFS (Canadian Criteria; n = 84) and sedentary controls (CTL; n = 71) completed two CPETs on a cycle ergometer separated by 24 h. Two-way repeated measures ANOVA compared CPET measures at rest, ventilatory/anaerobic threshold (VAT), and peak effort between phenotypes and CPETs. Intraclass correlations described stability of CPET measures across tests, and relevant objective CPET data indicated impairment status. A subset of case-control pairs (n = 55) matched for aerobic capacity, age, and sex, were also analyzed. RESULTS Unlike CTL, ME/CFS failed to reproduce CPET-1 measures during CPET-2 with significant declines at peak exertion in work, exercise time, V ˙ e, V ˙ O2, V ˙ CO2, V ˙ T, HR, O2pulse, DBP, and RPP. Likewise, CPET-2 declines were observed at VAT for V ˙ e/ V ˙ CO2, PetCO2, O2pulse, work, V ˙ O2 and SBP. Perception of effort (RPE) exceeded maximum effort criteria for ME/CFS and CTL on both CPETs. Results were similar in matched pairs. Intraclass correlations revealed greater stability in CPET variables across test days in CTL compared to ME/CFS owing to CPET-2 declines in ME/CFS. Lastly, CPET-2 data signaled more severe impairment status for ME/CFS compared to CPET-1. CONCLUSIONS Presently, this is the largest 2-d CPET study of ME/CFS to substantiate impaired recovery in ME/CFS following an exertional stressor. Abnormal post-exertional CPET responses persisted compared to CTL matched for aerobic capacity, indicating that fitness level does not predispose to exertion intolerance in ME/CFS. Moreover, contributions to exertion intolerance in ME/CFS by disrupted cardiac, pulmonary, and metabolic factors implicates autonomic nervous system dysregulation of blood flow and oxygen delivery for energy metabolism. The observable declines in post-exertional energy metabolism translate notably to a worsening of impairment status. Treatment considerations to address tangible reductions in physiological function are proffered. TRIAL REGISTRATION NUMBER ClinicalTrials.gov, retrospectively registered, ID# NCT04026425, date of registration: 2019-07-17.
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Affiliation(s)
- Betsy Keller
- Department of Exercise Science and Athletic Training, Ithaca College, Ithaca, NY, 14850, USA.
| | - Candace N Receno
- Department of Exercise Science and Athletic Training, Ithaca College, Ithaca, NY, 14850, USA
| | - Carl J Franconi
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, 14853, USA
| | - Sebastian Harenberg
- Department of Human Kinetics, St. Francis Xavier University, Antigonish, NS, B2G 2W5, Canada
| | - Jared Stevens
- Department of Radiology, Weill Cornell Medicine, New York, NY, 10065, USA
| | | | - Staci R Stevens
- Department of Radiology, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Geoff Moore
- Department of Exercise Science and Athletic Training, Ithaca College, Ithaca, NY, 14850, USA
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, 14853, USA
| | - Susan Levine
- Susan Levine, MD Clinical Practice, New York, NY, 10021, USA
| | | | | | - Maureen R Hanson
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, 14853, USA
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Albergoni M, Pagani E, Preziosa P, Meani A, Margoni M, Rocca MA, Filippi M. Thalamic nuclei volume partially mediates the effects of aerobic capacity on fatigue in people with multiple sclerosis. J Neurol 2024; 271:3378-3388. [PMID: 38507073 DOI: 10.1007/s00415-024-12277-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/01/2024] [Accepted: 02/25/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Fatigue is frequent in people with multiple sclerosis (pwMS) impacting physical and cognitive functions. Lower aerobic capacity and regional thalamic volume may be involved in the pathophysiology of fatigue in pwMS. OBJECTIVES To identify associations between thalamic nuclei volumes, aerobic capacity and fatigue and to investigate whether the influence of aerobic capacity on fatigue in pwMS is mediated by thalamic integrity. METHODS Eighty-three pwMS underwent a clinical evaluation with assessment of fatigue (Modified Fatigue Impact Scale [MFIS]), including physical (pMFIS) and cognitive (cMFIS) components, and peak of oxygen uptake (VO2peak). PwMS and 63 sex- and age-matched healthy controls (HC) underwent a 3 T brain MRI to quantify volume of the whole thalamus and its nuclei. RESULTS Compared to HC, pwMS showed higher global MFIS, pMFIS and cMFIS scores, and lower VO2peak and thalamic volumes (p < 0.001). In pwMS, higher VO2peak was significantly associated with lower MFIS and pMFIS scores (r value = - 0.326 and - 0.356; pFDR ≤ 0.046) and higher laterodorsal thalamic nucleus (Dor) cluster volume (r value = 0.300; pFDR = 0.047). Moreover, lower Dor thalamic cluster volume was significantly associated with higher MFIS, pMFIS and cMFIS scores (r value range = - 0.305; - 0.293; pFDR ≤ 0.049). The volume of Dor thalamic cluster partially mediated the positive effects of VO2peak on both MFIS and cMFIS, with relative indirect effects of 21% and 32% respectively. No mediation was found for pMFIS. CONCLUSIONS Higher VO2peak is associated with lower fatigue in pwMS, likely acting on Dor thalamic cluster volume integrity. Such an effect might be different according to the type of fatigue (cognitive or physical).
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Affiliation(s)
- Matteo Albergoni
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Elisabetta Pagani
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Paolo Preziosa
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandro Meani
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Monica Margoni
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria A Rocca
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy.
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Vita-Salute San Raffaele University, Milan, Italy.
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Neurophysiology Service, IRCCS San Raffaele Scientific Institute, Milan, Italy.
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Bonde-Jensen F, Dalgas U, Hvid LG, Langeskov-Christensen M. Validity and reliability of linear encoder muscle power testing in persons with Parkinson's disease. Clin Rehabil 2024; 38:678-687. [PMID: 38193269 DOI: 10.1177/02692155231224987] [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] [Indexed: 01/10/2024]
Abstract
OBJECTIVE To investigate the construct validity ON medication and the reliability both ON and OFF medication of linear encoder muscle power testing in persons with Parkinson's disease (pwPD). DESIGN A study using baseline data from one randomized controlled trial (study 1) and one cohort study (study 2). SETTING University exercise lab. PARTICIPANTS Study 1: 35 healthy controls and 70 pwPD. Study 2: 20 pwPD. INTERVENTION Study 1: baseline data. Study 2: 4 chair rise tests (2 ON and 2 OFF medication), in a randomized order, separated by 4 to 16 days. MAIN MEASURES Linear encoder data were collected from a chair rise test. Known groups validity and convergent validity (i.e., construct validity) were assessed by comparing peak power between pwPD and healthy controls and associations between peak power and functional performance (i.e., 6-Min Walk Test, Timed Up and Go Test, Six-Spot Step Test), respectively. Reliability was assessed as day-to-day variation and by intraclass correlation coefficients. RESULTS Peak power was comparable between pwPD and healthy controls (-7.2%, p = 0.17), but lower in moderately impaired pwPD compared to mildly impaired pwPD (-27%, p < 0.01) and healthy controls (-23%, p < 0.01). Moderate to strong associations were observed between peak power and functional performance (r2 = 0.44-0.51). Day-to-day variation ON and OFF medication were 1.0 and 1.3 W/kg, respectively, while intraclass correlation coefficients were 0.95 (0.87;0.98) and 0.93 (0.82;0.97), respectively. CONCLUSION Linear encoder muscle power testing shows inconsistent known groups validity, acceptable convergent validity ON medication, and excellent day-to-day reliability ON and OFF medication in pwPD.
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Affiliation(s)
| | - Ulrik Dalgas
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Lars Grøndahl Hvid
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark
- The Danish Multiple Sclerosis Hospitals, Ry and Haslev, Denmark
| | - Martin Langeskov-Christensen
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Neurology, Viborg Regional Hospital, Viborg, Denmark
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Wyatt PB, Reiter CR, Satalich JR, O’Neill CN, Edge C, Cyrus JW, O’Connell RS, Vap AR. Effects of Vitamin D Supplementation in Elite Athletes: A Systematic Review. Orthop J Sports Med 2024; 12:23259671231220371. [PMID: 38188620 PMCID: PMC10768611 DOI: 10.1177/23259671231220371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/31/2023] [Indexed: 01/09/2024] Open
Abstract
Background Deficiency in vitamin D has been shown to increase the risk of injury. Purpose To synthesize current placebo-controlled randomized trials investigating the effect of vitamin D supplementation in elite athletes on (1) aerobic capacity; (2) anaerobic measures, such as strength, speed, and anaerobic power; (3) serum biomarkers of inflammation; and (4) bone health. Study Design Systematic review; Level of evidence, 1. Methods A literature search was conducted on November 30, 2022, according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Included were randomized, placebo-controlled studies of longer than 2 weeks on subjects with active participation in organized sport. Excluded were nonrandomized controlled trial study designs, vitamin D administration routes other than oral, studies that did not use vitamin D supplementation as the sole intervention, and studies with nonathletic or military populations. Results Out of 2331 initial studies, 14 studies (482 athletes) were included. Of the 3 studies that assessed aerobic capacity, 2 demonstrated significantly greater improvements in maximal oxygen uptake and physical working capacity-170 (P < .05) in supplemented versus nonsupplemented athletes. Measurements of anaerobic power and strength were consistently increased in supplemented groups compared with nonsupplemented groups in 5 out of the 7 studies that assessed this. Of the 6 studies that assessed sprint speed, 4 found no significant difference between supplemented and nonsupplemented groups. Aside from 1 study that found significantly lower interleukin-6 levels in supplemented athletes, measures of other inflammatory cytokines were not affected consistently by supplementation. The 4 studies that assessed markers of bone health were conflicting regarding benefits of supplementation. One study found demonstrated improvements in bone mineral density in response to supplementation (P = .02) compared with control whereas another found no significant difference between supplemented and nonsupplemented groups. However, in 3 other studies, serum biomarkers of bone turnover such as bone-specific alkaline phosphatase, parathyroid hormone, and N-terminal telopeptide appeared to be higher in subjects with lower serum vitamin D levels (P < .05). Conclusion Results of this systematic review indicated that the greatest benefit of vitamin D supplementation in elite athletes may be improving aerobic endurance, anaerobic power, and strength. More research is needed to determine the effect of vitamin D supplementation on bone health and injury risk in this population.
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Affiliation(s)
- Phillip B. Wyatt
- Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Charles R. Reiter
- Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - James R. Satalich
- Department of Orthopedic Surgery, Virginia Commonwealth University Health System, Richmond, Virginia, USA
| | - Conor N. O’Neill
- Department of Orthopedic Surgery, Virginia Commonwealth University Health System, Richmond, Virginia, USA
| | - Carl Edge
- Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - John W. Cyrus
- Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Robert S. O’Connell
- Department of Orthopedic Surgery, Virginia Commonwealth University Health System, Richmond, Virginia, USA
| | - Alexander R. Vap
- Department of Orthopedic Surgery, Virginia Commonwealth University Health System, Richmond, Virginia, USA
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Morozumi T, Preziosa P, Meani A, Albergoni M, Margoni M, Pagani E, Filippi M, Rocca MA. Influence of cardiorespiratory fitness and MRI measures of neuroinflammation on hippocampal volume in multiple sclerosis. J Neurol Neurosurg Psychiatry 2023; 95:29-36. [PMID: 37468307 DOI: 10.1136/jnnp-2023-331482] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/10/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND The hippocampus is a clinically relevant region where neurogenesis and neuroplasticity occur throughout the whole lifespan. Neuroinflammation and cardiorespiratory fitness (CRF) may influence hippocampal integrity by modulating the processes promoting neurogenesis and neuroprotection that contribute to the preservation of functions. This study aimed to investigate the effects of neuroinflammation and CRF on hippocampal volume in multiple sclerosis (MS) patients with relapsing-remitting (RR) and progressive (P) clinical phenotypes. The influence of neuroinflammation and CRF on brain, grey matter (GM) and thalamic volumes was also assessed to determine whether the effects were specific for the hippocampus. METHOD Brain 3T structural MRI scans and maximum oxygen consumption (VO2max), a proxy of CRF, were acquired from 81 MS patients (27 RR and 54 P) and 45 age-matched and sex-matched healthy controls. T2-hyperintense white matter lesion volume (T2-LV) and choroid plexuses volume (CPV) were quantified as neuroinflammatory measures. Associations of demographic, clinical, neuroinflammatory and CRF measures with normalised brain, GM, hippocampal and thalamic volumes in relapsing-remitting MS (RRMS) and progressive MS patients were assessed using Shapley and best subset selection regression. RESULTS For most volumetric measures, the largest portions of variance were explained by T2-LV (variable importance (VI)=9.4-39.4) and CPV (VI=4.5-26.2). VO2max explained the largest portion of variance of normalised hippocampal volume only in RRMS patients (VI=16.9) and was retained as relevant predictor (standardised β=0.374, p=0.023) with T2-LV (standardised β=-0.330, p=0.016). CONCLUSIONS A higher CRF may play a specific neuroprotective role on MS patients' hippocampal integrity, but only in the RR phase of the disease.
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Affiliation(s)
- Tetsu Morozumi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Paolo Preziosa
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
- Vita-Salute San Raffaele University, Milano, Italy
- Neurology Unit, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Alessandro Meani
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Matteo Albergoni
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Monica Margoni
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Elisabetta Pagani
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
- Vita-Salute San Raffaele University, Milano, Italy
- Neurology Unit, IRCCS Ospedale San Raffaele, Milano, Italy
- Neurorehabilitation Unit, IRCCS Ospedale San Raffaele, Milano, Italy
- Neurophysiology Service, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Maria A Rocca
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milano, Italy
- Vita-Salute San Raffaele University, Milano, Italy
- Neurology Unit, IRCCS Ospedale San Raffaele, Milano, Italy
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Snow NJ, Landine J, Chaves AR, Ploughman M. Age and asymmetry of corticospinal excitability, but not cardiorespiratory fitness, predict cognitive impairments in multiple sclerosis. IBRO Neurosci Rep 2023; 15:131-142. [PMID: 37577407 PMCID: PMC10412844 DOI: 10.1016/j.ibneur.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 07/11/2023] [Accepted: 07/15/2023] [Indexed: 08/15/2023] Open
Abstract
Background Cognitive impairment is a disabling and underestimated consequence of multiple sclerosis (MS), with multiple determinants that are poorly understood. Objectives We explored predictors of MS-related processing speed impairment (PSI) and age-related mild cognitive impairment (MCI) and hypothesized that cardiorespiratory fitness and corticospinal excitability would predict these impairments. Methods We screened 73 adults with MS (53 females; median [range]: Age 48 [21-70] years, EDSS 2.0 [0.0-6.5]) for PSI and MCI using the Symbol Digit Modalities Test and Montréal Cognitive Assessment, respectively. We identified six persons with PSI (No PSI, n = 67) and 13 with MCI (No MCI, n = 60). We obtained clinical data from medical records and self-reports; used transcranial magnetic stimulation to test corticospinal excitability; and assessed cardiorespiratory fitness using a graded maximal exercise test. We used receiver operator characteristic (ROC) curves to discern predictors of PSI and MCI. Results Interhemispheric asymmetry of corticospinal excitability was specific for PSI, while age was both sensitive and specific for MCI. MS-related PSI was also associated with statin prescriptions, while age-related MCI was related to progressive MS and GABA agonist prescriptions. Cardiorespiratory fitness was associated with neither PSI nor MCI. Discussion Corticospinal excitability is a potential marker of neurodegeneration in MS-related PSI, independent of age-related effects on global cognitive function. Age is a key predictor of mild global cognitive impairment. Cardiorespiratory fitness did not predict cognitive impairments in this clinic-based sample of persons with MS.
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Affiliation(s)
- Nicholas J. Snow
- Recovery and Performance Laboratory, Faculty of Medicine, Memorial University of Newfoundland and Labrador, St. John's, Newfoundland and Labrador, Canada
| | - Josef Landine
- Recovery and Performance Laboratory, Faculty of Medicine, Memorial University of Newfoundland and Labrador, St. John's, Newfoundland and Labrador, Canada
| | - Arthur R. Chaves
- Recovery and Performance Laboratory, Faculty of Medicine, Memorial University of Newfoundland and Labrador, St. John's, Newfoundland and Labrador, Canada
| | - Michelle Ploughman
- Recovery and Performance Laboratory, Faculty of Medicine, Memorial University of Newfoundland and Labrador, St. John's, Newfoundland and Labrador, Canada
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Wolf F, Nielsen J, Saliger J, Hennecken E, Kröber P, Eschweiler M, Folkerts AK, Karbe H, Zimmer P. Multimodal agility-based exercise training (MAT) versus strength and endurance training (SET) to improve multiple sclerosis-related fatigue and fatigability during inpatient rehabilitation: a randomized controlled pilot and feasibility study [ReFEx]. BMC Neurol 2023; 23:388. [PMID: 37898772 PMCID: PMC10612282 DOI: 10.1186/s12883-023-03436-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/16/2023] [Indexed: 10/30/2023] Open
Abstract
BACKGROUND Multimodal agility-based exercise training (MAT) is a group-based exercise training framework for persons with multiple sclerosis (pwMS) with a potential to impact fatigue and fatigability. In a mixed-methods design, this study evaluated the feasibility of implementing MAT in an inpatient rehabilitation setting and the feasibility of a randomized controlled trial (RCT) study protocol with 'traditional' strength and endurance training (SET) as an active control condition. Secondarily, preliminary outcome data was acquired. METHODS PwMS with low to moderate disability and self-reported fatigue were randomly allocated to either MAT or SET when starting inpatient rehabilitation (4-6 weeks). The MAT-participants exercised in a group following a MAT-manual (sessions were gym- (5x/week) and pool-based (3x/week)). SET-participants exercised individually 5x/week on a cycle ergometer, and 3x/week on strength training machines. Feasibility assessments focused on processes, resources, management, time, and scientific domains. Assessed clinical outcomes at admission and discharge included perceived fatigue, motor and cognitive fatigability, cognitive performance, motor function, and balance confidence. Perceived fatigue was reassessed 1, 4, and 12 weeks after discharge. Feasibility was determined regarding predetermined progression criteria. RESULTS Twenty-two participants were randomized. Both groups performed the minimum number of sessions (> 18), and retention was adequate (73-91%). SET-participants performed more sessions than MAT-participants (30.8 vs. 22.7) and stayed longer in the facility (34.2 vs. 31.6 days). Non-eligibility of admitted pwMS was high (74% non-eligible), mainly due to high EDSS and inability to attend pool-based sessions. Consequently, recruitment (1.8/month) was slower than the predetermined progression criterium. Baseline assessments took longer than required (only 50% completed within 3 days). Short-term fatigue reduction was similar for both groups. Motor fatigability also improved in both groups, whereas cognitive fatigability deteriorated. In MAT, average improvement in walking endurance (43.9 m) exceeded minimal important change values for individuals (> 26.9 m). CONCLUSIONS Progressing to a definitive RCT necessitates adaptation of eligibility criteria. In the present design it will also be difficult to attain similar dosing of interventions. A multicenter RCT focused only on gym-based MAT might be another option to assess the effect of MAT. The primary outcome measure should be able to measure change in perceived fatigue more robustly. TRIAL REGISTRATION German Clinical Trials Register: DRKS00023943, date of registration: 23 September 2021.
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Affiliation(s)
- Florian Wolf
- Neurological Rehabilitation Center Godeshoehe GmbH, Bonn, Germany.
- Division of Performance and Health, Institute for Sport and Sport Science, Technical University Dortmund, Dortmund, Germany.
| | - Jörn Nielsen
- Neurological Rehabilitation Center Godeshoehe GmbH, Bonn, Germany
- Department of Medical Psychology | Neuropsychology and Gender Studies, Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jochen Saliger
- Neurological Rehabilitation Center Godeshoehe GmbH, Bonn, Germany
| | - Eva Hennecken
- Neurological Rehabilitation Center Godeshoehe GmbH, Bonn, Germany
| | - Philipp Kröber
- Neurological Rehabilitation Center Godeshoehe GmbH, Bonn, Germany
| | | | - Ann-Kristin Folkerts
- Department of Medical Psychology | Neuropsychology and Gender Studies, Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Hans Karbe
- Neurological Rehabilitation Center Godeshoehe GmbH, Bonn, Germany
| | - Philipp Zimmer
- Division of Performance and Health, Institute for Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
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11
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Nieste I, Franssen WMA, Duvivier BMFM, Spaas J, Savelberg HHCM, Eijnde BO. Replacing sitting with light-intensity physical activity throughout the day versus 1 bout of vigorous-intensity exercise: similar cardiometabolic health effects in multiple sclerosis. A randomised cross-over study. Disabil Rehabil 2023; 45:3293-3302. [PMID: 36190113 DOI: 10.1080/09638288.2022.2122601] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/30/2022] [Accepted: 09/04/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Persons with Multiple Sclerosis (PwMS) are physically inactive and spend more time in sedentary behaviours than healthy persons, which increases the risk of developing cardiometabolic diseases. In this randomised crossover study, the cardiometabolic health effects of replacing sitting with light-intensity physical activity (LIPA) and exercise (EX) were investigated. MATERIALS AND METHODS Twenty-eight mildly disabled PwMS performed four 4-day activity regimens in free-living conditions; CONTROL (habitual activity), SIT, LIPA, and EX. Plasma glucose and insulin (oral glucose tolerance test), plasma lipids, inflammation, resting heart rate, blood pressure, body weight, and perceived exertion were measured (clinical-trials.gov: NCT03919058). RESULTS CONTROL: 9.7 h sitting/day, SIT: 13.3 h sitting/day, LIPA: 8.3 h sitting, 4.7 h standing, and 2.7 h light-intensity walking/day, and EX: 11.6 h sitting/day with 1.3 h vigorous-intensity cycling. Compared to SIT, improvements (p < 0.001) after LIPA and EX were found for insulin total area under the curve (-17 019 ± 5708 and -23 303 ± 7953 pmol/L*min), insulin sensitivity (Matsuda index +1.8 ± 0.3 and +1.9 ± 0.4) and blood lipids (triglycerides: -0.4 ± 0.1 and -0.5 ± 0.1 mmol/L; non-high-density lipoprotein cholesterol: -0.3 ± 0.1 and -0.5 ± 0.1 mmol/L), with no difference between LIPA and EX. Perceived exertion was higher after EX compared to LIPA (Borg score [6-20]: +2.6 ± 3.3, p = 0.002). CONCLUSION Replacing sitting with LIPA throughout the day exerts similar cardiometabolic health effects as a vigorous-intensity exercise in PwMS.IMPLICATIONS FOR REHABILITATIONIncreasing light-intensity physical activity (LIPA) throughout the day improves cardiometabolic health to the same extent as one vigorous-intensity exercise sessionIncreasing LIPA induces less exertion than performing a vigorous-intensity exercise.
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Affiliation(s)
- Ine Nieste
- Faculty of Medicine and Life Sciences, Sports Medicine Research Center, SMRC, BIOMED, Biomedical Research Institute, Hasselt University, Hasselt, Belgium
- Department of Nutrition and Movement Sciences, Faculty of Health, Medicine and Life Sciences, NUTRIM, School for Nutrition and Translation Research Maastricht, Maastricht University, Maastricht, Netherlands
- University MS Center (UMSC) Hasselt-Pelt, Hasselt, Belgium
| | - Wouter M A Franssen
- Faculty of Medicine and Life Sciences, Sports Medicine Research Center, SMRC, BIOMED, Biomedical Research Institute, Hasselt University, Hasselt, Belgium
- Department of Nutrition and Movement Sciences, Faculty of Health, Medicine and Life Sciences, NUTRIM, School for Nutrition and Translation Research Maastricht, Maastricht University, Maastricht, Netherlands
- Faculty of Rehabilitation Sciences, REVAL-Rehabilitation Research Center, Hasselt University, Hasselt, Belgium
| | | | - Jan Spaas
- Faculty of Medicine and Life Sciences, Sports Medicine Research Center, SMRC, BIOMED, Biomedical Research Institute, Hasselt University, Hasselt, Belgium
- University MS Center (UMSC) Hasselt-Pelt, Hasselt, Belgium
- Department of Movement and Sports Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Hans H C M Savelberg
- Department of Nutrition and Movement Sciences, Faculty of Health, Medicine and Life Sciences, NUTRIM, School for Nutrition and Translation Research Maastricht, Maastricht University, Maastricht, Netherlands
| | - Bert O Eijnde
- Faculty of Medicine and Life Sciences, Sports Medicine Research Center, SMRC, BIOMED, Biomedical Research Institute, Hasselt University, Hasselt, Belgium
- University MS Center (UMSC) Hasselt-Pelt, Hasselt, Belgium
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12
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Schlagheck ML, Bansi J, Wenzel C, Kuzdas-Sallaberger M, Kiesl D, Gonzenbach R, Zimmer P. Complexity and pitfalls in maximal exercise testing for persons with multiple sclerosis. Eur J Neurol 2023; 30:2726-2735. [PMID: 37209371 DOI: 10.1111/ene.15875] [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: 11/08/2022] [Revised: 04/19/2023] [Accepted: 05/17/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND AND PURPOSE Valid measurements of cardiorespiratory fitness in persons with multiple sclerosis (pwMS) are essential during inpatient rehabilitation for a precise evaluation of the current health status, for defining appropriate exercise intensities, and for evaluation of exercise intervention studies. We aim (i) to examine the proportion of pwMS who attain the American College of Sports Medicine (ACSM) criteria for maximal effort during graded cardiopulmonary exercise testing (CPET) and (ii) to provide insight into participant characteristics that limit maximal exercise performance. METHODS This cross-sectional study comprises a retrospective examination of ACSM criteria for maximal effort during graded CPET of n = 380 inpatient pwMS (mean age = 48 ± 11 years, 66% female). Chi-squared or Fisher's exact tests were conducted to compare differences in the distribution of criteria achieved. Participants' characteristics were examined as potential predictors using binary logistic regression. RESULTS Only 60% of the overall sample attained a respiratory exchange ratio ≥ 1.10. With regard to the definition applied, only 24% or 40% of the participants achieved an oxygen consumption plateau, and 17% or 50% attained the heart rate criterion. Forty-six percent met at least two of three criteria. Disability status, gender, disease course, and body mass index were associated with the attainment of maximal effort. CONCLUSIONS Our findings suggest that a relevant proportion of inpatient pwMS do not attain common criteria utilized to verify maximal oxygen consumption. Identified predictors for criteria attainment can be used to create models to predict cardiorespiratory fitness and to optimize CPET protocols in restrictive groups of pwMS.
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Affiliation(s)
- Marit L Schlagheck
- Division of Performance and Health, Institute for Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
| | - Jens Bansi
- Department of Neurology, Kliniken Valens, Rehabilitation Centre Valens, Valens, Switzerland
- Department of Health, OST-Eastern Swiss University of Applied Sciences, St. Gallen, Switzerland
| | - Charlotte Wenzel
- Division of Performance and Health, Institute for Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
| | | | - David Kiesl
- University Clinic for Hematology and Internal Oncology, Kepler University Hospital Linz, Johannes Kepler University Linz, Linz, Austria
| | - Roman Gonzenbach
- Department of Neurology, Kliniken Valens, Rehabilitation Centre Valens, Valens, Switzerland
| | - Philipp Zimmer
- Division of Performance and Health, Institute for Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
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13
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Jensen FB, Dalgas U, Brincks J, Langeskov-Christensen M. Validity and reliability of VO 2-max testing in persons with Parkinson's disease. Parkinsonism Relat Disord 2023; 109:105324. [PMID: 36827950 DOI: 10.1016/j.parkreldis.2023.105324] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 01/18/2023] [Accepted: 02/11/2023] [Indexed: 02/17/2023]
Abstract
INTRODUCTION Direct whole body assessment of maximal oxygen consumption (VO2-max test) is considered the gold standard when assessing cardiorespiratory fitness (VO2-max) in healthy people. VO2-max is also an important health and performance indicator for persons with Parkinson's disease (pwPD) and is often used when prescribing exercise and evaluating aerobic exercise interventions. However, no study has examined the content validity of the VO2-max test in pwPD as well as the test-retest reliability (i.e., day-to-day variation) in both the ON and OFF medication state. Therefore, the present study investigated the content validity and test-retest reliability of the VO2-max test in pwPD both ON and OFF medication. METHODS Twenty pwPD completed four VO2-max tests (two tests ON and two tests OFF medication), in a randomized order, separated by four to sixteen days. The first tests ON and OFF medication were used to assess content validity based on attainment of five pre-defined end-criteria (one primary and four secondary). Reliability was examined by intraclass correlation coefficients (ICC) and the day-to-day variation of the two ON and OFF medication tests. RESULTS In pwPD, 50% and 60% attained the primary end-criterion ON and OFF medication, respectively. A higher proportion (i.e., 70-90%) attained the secondary end-criteria both ON and OFF medication with no difference between medication states. Day-to-day variations were 1.2 and 1.8 ml O2/kg/min, while ICC2.1 were 0.97 (95%-CI: 0.92; 0.99) and 0.96 (95%-CI: 0.90; 0.98) ON and OFF medication, respectively. CONCLUSION The VO2-max test has an acceptable content validity and excellent day-to-day reliability ON and OFF medication in pwPD.
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Affiliation(s)
- Frederik Bonde Jensen
- Exercise Biology, Department of Public Health, Aarhus University, Dalgas Avenue 4, 8000, Aarhus C, Denmark.
| | - Ulrik Dalgas
- Exercise Biology, Department of Public Health, Aarhus University, Dalgas Avenue 4, 8000, Aarhus C, Denmark
| | - John Brincks
- Research Centre for Health and Welfare Technology - Programme for Rehabilitation, Faculty of Health Science, VIA University College, Hedeager 2, 8200, Aarhus N, Denmark
| | - Martin Langeskov-Christensen
- Exercise Biology, Department of Public Health, Aarhus University, Dalgas Avenue 4, 8000, Aarhus C, Denmark; Department of Neurology, Viborg Regional Hospital, Heibergs Alle 2, 8800, Viborg, Denmark
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14
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Patejdl R, Zettl UK. The pathophysiology of motor fatigue and fatigability in multiple sclerosis. Front Neurol 2022; 13:891415. [PMID: 35968278 PMCID: PMC9363784 DOI: 10.3389/fneur.2022.891415] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Multiple Sclerosis (MS) is a heterogeneous immune mediated disease of the central nervous system (CNS). Fatigue is one of the most common and disabling symptom of MS. It interferes with daily activities on the level of cognition and motor endurance. Motor fatigue can either result from lesions in cortical networks or motor pathways (“primary fatigue”) or it may be a consequence of detraining with subsequent adaptions of muscle and autonomic function. Programmed exercise interventions are used frequently to increase physical fitness in MS-patients. Studies investigating the effects of training on aerobic capacity, objective endurance and perceived fatigability have yielded heterogenous results, most likely due to the heterogeneity of interventions and patients, but probably also due to the non-uniform pathophysiology of fatigability among MS-patients. The aim of this review is to summarize the current knowledge on the pathophysiology of motor fatigability with special reference to the basic exercise physiology that underlies our understanding of both pathogenesis and treatment interventions.
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Affiliation(s)
- Robert Patejdl
- Oscar Langendorff Institute of Physiology, Rostock University Medical Center, Rostock, Germany
- *Correspondence: Robert Patejdl
| | - Uwe K. Zettl
- Department of Neurology, Clinical Neuroimmunology Section, Rostock University Medical Center, Rostock, Germany
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15
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Thrue C, Hvid LG, Gamborg M, Dawes H, Dalgas U, Langeskov-Christensen M. Aerobic capacity in persons with Parkinson’s disease: a systematic review. Disabil Rehabil 2022:1-13. [DOI: 10.1080/09638288.2022.2094480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Cecilie Thrue
- Department of Public Health, Exercise Biology, Aarhus University, Aarhus, Denmark
| | - Lars G. Hvid
- Department of Public Health, Exercise Biology, Aarhus University, Aarhus, Denmark
| | - Mads Gamborg
- Department of Public Health, Exercise Biology, Aarhus University, Aarhus, Denmark
| | - Helen Dawes
- Faculty of Health and Life Sciences, Centre for Movement and Occupational Rehabilitation Sciences (MOReS), Oxford Brookes University, Oxford, UK
- College of Medicine and Health, University of Exeter, Exeter, UK
| | - Ulrik Dalgas
- Department of Public Health, Exercise Biology, Aarhus University, Aarhus, Denmark
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16
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Humphreys L, Carter A, Sharrack B, Copeland R. High-intensity interval training in people with mild multiple sclerosis: a mixed-methods feasibility study. INTERNATIONAL JOURNAL OF THERAPY AND REHABILITATION 2022. [DOI: 10.12968/ijtr.2021.0073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background/Aims High-intensity interval training has received increased attention as a mode of exercise, including as a therapy in clinical populations. This study investigated the acceptability of a high-intensity interval training intervention in people with mild multiple sclerosis. Methods Participants attended two sessions a week for the 6-week intervention. Each session consisted of 6–10 sets of 60-second high-intensity intervals interspersed with 120 seconds of recovery. The acceptability, intervention adherence and safety of the high-intensity interval training protocol and estimates of treatment effects (fitness, physical activity levels, fatigue and quality of life) were used to determine intervention feasibility. Qualitative interviews were used to explore the acceptability of the intervention. Results A total of 11 people with mild multiple sclerosis consented to participate in a 6-week high-intensity interval intervention. One participant dropped out of the intervention. The participants expressed apprehension before the intervention but attendance at the exercise sessions was high (87%). Participants experienced some symptom exacerbation following sessions, although none were serious. Improvements were seen in fitness, physical activity, fatigue and health-related quality of life. Conclusions The study findings suggest that high-intensity interval training is acceptable, safe and may offer disease-related benefits for the participants. Participants did experience some symptom exacerbation and further studies are needed to determine the long-term appeal of high-intensity interval training for people with mild multiple sclerosis.
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Affiliation(s)
- Liam Humphreys
- Academy of Sport and Physical Activity, Sheffield Hallam University, Sheffield, UK
| | - Anouska Carter
- Academy of Sport and Physical Activity, Sheffield Hallam University, Sheffield, UK
| | - Basil Sharrack
- Neurology Department, Sheffield Teaching Hospitals NHS Foundation Trust, UK
| | - Robert Copeland
- Advanced Wellbeing Research Centre, Sheffield Hallam University, Sheffield, UK
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Riemenschneider M, Hvid LG, Ringgaard S, Nygaard MKE, Eskildsen SF, Gaemelke T, Magyari M, Jensen HB, Nielsen HH, Kant M, Falah M, Petersen T, Stenager E, Dalgas U. Investigating the potential disease-modifying and neuroprotective efficacy of exercise therapy early in the disease course of multiple sclerosis: The Early Multiple Sclerosis Exercise Study (EMSES). Mult Scler 2022; 28:1620-1629. [PMID: 35296183 DOI: 10.1177/13524585221079200] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Potential supplemental disease-modifying and neuroprotective treatment strategies are warranted in multiple sclerosis (MS). Exercise is a promising non-pharmacological approach, and an uninvestigated 'window of opportunity' exists early in the disease course. OBJECTIVE To investigate the effect of early exercise on relapse rate, global brain atrophy and secondary magnetic resonance imaging (MRI) outcomes. METHODS This randomized controlled trial (n = 84, disease duration <2 years) included 48 weeks of supervised aerobic exercise or control condition. Population-based control data (Danish MS Registry) was included (n = 850, disease duration <2 years). Relapse rates were obtained from medical records, and patients underwent structural and diffusion-kurtosis MRI at baseline, 24 and 48 weeks. RESULTS No between-group differences were observed for primary outcomes, relapse rate (incidence-rate-ratio exercise relative to control: (0.49 (0.15; 1.66), p = 0.25) and global brain atrophy rate (-0.04 (-0.48; 0.40)%, p = 0.87), or secondary measures of lesion load. Aerobic fitness increased in favour of the exercise group. Microstructural integrity was higher in four of eight a priori defined motor-related tracts and nuclei in the exercise group compared with the control (thalamus, corticospinal tract, globus pallidus, cingulate gyrus) at 48 weeks. CONCLUSION Early supervised aerobic exercise did not reduce relapse rate or global brain atrophy, but does positively affect the microstructural integrity of important motor-related tracts and nuclei.
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Affiliation(s)
| | - Lars G Hvid
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus C, Denmark/MS Hospitals in Denmark, The Danish MS Hospitals, Ry and Haslev, Denmark
| | - Steffen Ringgaard
- The MR Research Centre, Aarhus University Hospital, Aarhus N, Denmark
| | - Mikkel Karl Emil Nygaard
- Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus C, Denmark
| | - Simon Fristed Eskildsen
- Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus C, Denmark
| | - Tobias Gaemelke
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus C, Denmark
| | - Melinda Magyari
- The Danish Multiple Sclerosis Registry, Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark
| | - Henrik Boye Jensen
- Brain and Nerve Diseases, Lillebaelt Hospital, Kolding, Denmark/Department of Regional Health Research, University of Southern Denmark, Odense M, Denmark
| | | | - Matthias Kant
- MS-Clinics of Southern Jutland (Sønderborg, Esbjerg and Kolding), Department of Neurology, Sønderborg, Denmark
| | - Masoud Falah
- MS-Clinic Hospital Unit of Western Denmark, Department of Neurology, Holstebro, Denmark
| | - Thor Petersen
- The Multiple Sclerosis Clinic, Department of Neurology, Aarhus University Hospital, Aarhus N, Denmark
| | - Egon Stenager
- Department of Regional Health Research, University of Southern Denmark, Odense M, Denmark/MS-Clinics of Southern Jutland (Sønderborg, Esbjerg and Kolding), Department of Neurology, Sønderborg, Denmark
| | - Ulrik Dalgas
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus C, Denmark
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The aerobic capacity – fatigue relationship in persons with Multiple Sclerosis is not reproducible in a pooled analysis of two randomized controlled trials. Mult Scler Relat Disord 2022; 58:103476. [DOI: 10.1016/j.msard.2021.103476] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/29/2021] [Accepted: 12/24/2021] [Indexed: 11/23/2022]
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Cerexhe L, Easton C, Macdonald E, Renfrew L, Sculthorpe N. Blood lactate concentrations during rest and exercise in people with Multiple Sclerosis: A systematic review and meta-analysis. Mult Scler Relat Disord 2021; 57:103454. [PMID: 34915317 DOI: 10.1016/j.msard.2021.103454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/23/2021] [Accepted: 12/03/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Multiple Sclerosis (MS) is a chronic disorder which irreversibly damages axons within brain matter. Blood lactate concentration could be a biomarker of MS onset and progression, but no systematic review has yet sought to confirm or dispute the elevation and biomarker potential of blood lactate in people with MS (PwMS) or to consolidate understanding of lactate production during exercise in PwMS. OBJECTIVE To perform a systematic review and meta-analysis on blood lactate in PwMS during rest and exertion compared to Healthy Controls (HC) and following chronic exercise intervention. METHODS A systematic search of six electronic databases (PubMed, CINAHL, Science Direct, Cochrane Library, SPORTDiscus and PEDro) was performed on 10th April 2020. Mean, standard deviation and sample size for lactate measures at rest and during exercise were pooled to determine overall effect size using a random effects model. The 20-point Appraisal tool for Cross-Sectional Studies was utilised to assess study quality and inherent risk of bias. To qualify for inclusion, studies had to include human adults (>18 years) with a confirmed clinical diagnosis of MS, be published in English, have undergone peer review, report absolute blood lactate values for data extraction, and if involving testing during/after exercise, to do so during bilateral exercise methods. RESULTS 18 studies were qualitatively analysed and 15 studies quantitatively analysed. Outcome data was available for 1986 participants (nMS = 1129). A total of 7 papers tested blood lactate during rest (LactateREST), 7 papers tested during sub-maximal intensity exercise (LactateSUB-MAX), and 8 papers tested during maximal intensity exercise (LactateMAX). Meta analyses showed elevated LactateREST and reduced LactateMAX in PwMS compared to HC, higher LactateMAX in lower EDSS-scoring PwMS compared to higher EDSS-scoring PwMS, and that LactateSUB-MAX decreases and LactateMAX increases in PwMS following a chronic exercise intervention. Qualitative analysis reported LactateREST to be reduced in PwMS following a chronic exercise intervention. CONCLUSIONS LactateREST is elevated in PwMS compared to HC. LactateMAX is lower in PwMS compared to HC and lower still in higher compared to lower EDSS-scoring groups of PwMS. Chronic exercise interventions have the potential to reduce LacatateSUB-MAX for a given power output and increase LactateMAX in PwMS compared to baseline values. LactateREST may be reduced in PwMS following a chronic exercise intervention but more research is required for confirmation. The results of this review were limited by small sample sizes and number of studies available for each testing condition, limited data available for potentially confounding/correlating factors (eg. VO2 and power output) as well as heterogeneity of methodology adopted across studies, often due to lactate testing being a secondary outcome measure. PLS: Lactate levels in the blood are different during rest and at intense exercise levels in people with Multiple Sclerosis (MS) compared to healthy counterparts, with people with MS showing a smaller jump in lactate during intense exercise from a higher resting level. After exercising for at least 3 months, blood lactate levels during exercise may become more similar to the levels seen in people without Multiple Sclerosis, but more research is required to give a clearer picture of this. We can hopefully use blood lactate in future to measure the progression of MS in an individual as well as the effectiveness of their exercise programme.
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Affiliation(s)
- Luke Cerexhe
- Institute of Clinical Exercise & Health Sciences, School of Health and Life Sciences, University of the West of Scotland, Stephenson Place, Hamilton International Technology Park, South Lanarkshire G72 0HL, United Kingdom.
| | - Chris Easton
- Institute of Clinical Exercise & Health Sciences, School of Health and Life Sciences, University of the West of Scotland, Stephenson Place, Hamilton International Technology Park, South Lanarkshire G72 0HL, United Kingdom
| | - Eilidh Macdonald
- Institute of Clinical Exercise & Health Sciences, School of Health and Life Sciences, University of the West of Scotland, Stephenson Place, Hamilton International Technology Park, South Lanarkshire G72 0HL, United Kingdom
| | - Linda Renfrew
- Douglas Grant Rehabilitation Unit, Ayrshire Central Hospital, Kilwinning Rd, Irvine, Ayrshire KA12 8SS, United Kingdom
| | - Nicholas Sculthorpe
- Institute of Clinical Exercise & Health Sciences, School of Health and Life Sciences, University of the West of Scotland, Stephenson Place, Hamilton International Technology Park, South Lanarkshire G72 0HL, United Kingdom
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20
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Schlagheck ML, Joisten N, Walzik D, Wolf F, Neil-Sztramko SE, Bansi J, Rademacher A, Zimmer P. Systematic Review of Exercise Studies in Persons with Multiple Sclerosis: Exploring the Quality of Interventions According to the Principles of Exercise Training. Neurol Ther 2021; 10:585-607. [PMID: 34520000 PMCID: PMC8571450 DOI: 10.1007/s40120-021-00274-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 08/17/2021] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION The objective of this systematic review is to explore the application and reporting of (i) the principles of exercise training in exercise trials, (ii) the components of exercise prescription, and (iii) the adherence towards the prescribed programmes in randomised controlled trials (RCTs) in persons with multiple sclerosis (pwMS). METHODS The MEDLINE, CINAHL, SPORTDiscus, PubMed and Embase electronic databases were searched from 1 January 2000 to 16 October 2020. RCTs comprising at least 3 weeks of aerobic and/or resistance exercise intervention in pwMS that reported at least one physiological outcome and were published in peer-reviewed journals were eligible for inclusion. RESULTS Out of 52 RCTs included in this review, 58 intervention arms were examined. None applied more than four principles of exercise training. Specificity was addressed by 85%, progression by 33%, overload by 59%, initial values by 26%, reversibility by 0% and diminishing returns by 2% of trials. Fifty-two percent of trials reported all components of exercise prescription, and 3% of trials reported the level of adherence to the prescribed exercise. CONCLUSION This systematic review reveals that exercise training principles were not respected in the majority of included RCTs. The weak quality of reported exercise interventions limits the interpretation of the studies' results and potentially leads to an underestimation of 'exercise as medicine' in pwMS. Also, the vague descriptions of exercise prescription and adherence impede the reproducibility of results. Future studies must attend to all principles of exercise training and provide transparent information on the prescribed and performed programmes to develop specific and valid exercise recommendations for pwMS. SYSTEMATIC REVIEW REGISTRATION CRD42020162671, 28/04/2020, PROSPERO.
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Affiliation(s)
- Marit L Schlagheck
- Department of "Performance and Health (Sports Medicine)", Institute of Sport and Sport Science, Technical University Dortmund, Otto-Hahn-Str. 3, 44227, Dortmund, Germany
| | - Niklas Joisten
- Department of "Performance and Health (Sports Medicine)", Institute of Sport and Sport Science, Technical University Dortmund, Otto-Hahn-Str. 3, 44227, Dortmund, Germany.
| | - David Walzik
- Department of "Performance and Health (Sports Medicine)", Institute of Sport and Sport Science, Technical University Dortmund, Otto-Hahn-Str. 3, 44227, Dortmund, Germany
| | - Florian Wolf
- Neurological Rehabilitation Centre Godeshöhe, Bonn, Germany
| | - Sarah E Neil-Sztramko
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, ON, Canada
| | - Jens Bansi
- Department of Neurology, Clinics of Valens, Rehabilitation Centre Valens, Valens, Switzerland
| | - Annette Rademacher
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Philipp Zimmer
- Department of "Performance and Health (Sports Medicine)", Institute of Sport and Sport Science, Technical University Dortmund, Otto-Hahn-Str. 3, 44227, Dortmund, Germany
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21
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Lea Schlagheck M, Wucherer A, Rademacher A, Joisten N, Proschinger S, Walzik D, Bloch W, Kool J, Gonzenbach R, Bansi J, Zimmer P. VO2peak Response Heterogeneity in Persons with Multiple Sclerosis: To HIIT or Not to HIIT? Int J Sports Med 2021; 42:1319-1328. [PMID: 34198345 DOI: 10.1055/a-1481-8639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Exercise is described to provoke enhancements of cardiorespiratory fitness in persons with Multiple Sclerosis (pwMS). However, a high inter-individual variability in training responses has been observed. This analysis investigates response heterogeneity in cardiorespiratory fitness following high intensity interval (HIIT) and moderate continuous training (MCT) and analyzes potential predictors of cardiorespiratory training effects in pwMS. 131 pwMS performed HIIT or MCT 3-5x/ week on a cycle ergometer for three weeks. Individual responses were classified. Finally, a multiple linear regression was conducted to examine potential associations between changes of absolute peak oxygen consumption (absolute ∆V̇O2peak/kg), training modality and participant's characteristics. Results show a time and interaction effect for ∆V̇O2peak/kg. Absolute changes of cardiorespiratory responses were larger and the non-response proportions smaller in HIIT vs. MCT. The model accounting for 8.6% of the variance of ∆V̇O2peak/kg suggests that HIIT, younger age and lower baseline fitness predict a higher absolute ∆V̇O2peak/kg following an exercise intervention. Thus, this work implements a novel approach that investigates potential determinants of cardiorespiratory response heterogeneity within a clinical setting and analyzes a remarkable bigger sample. Further predictors need to be identified to increase the knowledge about response heterogeneity, thereby supporting the development of individualized training recommendations for pwMS.
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Affiliation(s)
- Marit Lea Schlagheck
- Division of Performance and Health (Sports Medicine), Department of Sport and Sport Science, TU Dortmund University, Dortmund, Germany
| | - Anika Wucherer
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Annette Rademacher
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Niklas Joisten
- Division of Performance and Health (Sports Medicine), Department of Sport and Sport Science, TU Dortmund University, Dortmund, Germany
| | - Sebastian Proschinger
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - David Walzik
- Division of Performance and Health (Sports Medicine), Department of Sport and Sport Science, TU Dortmund University, Dortmund, Germany
| | - Wilhelm Bloch
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Jan Kool
- Department of Neurology, Clinics of Valens, Rehabilitation Centre Valens, Valens, Switzerland
| | - Roman Gonzenbach
- Department of Neurology, Clinics of Valens, Rehabilitation Centre Valens, Valens, Switzerland
| | - Jens Bansi
- Department of Neurology, Clinics of Valens, Rehabilitation Centre Valens, Valens, Switzerland
| | - Philipp Zimmer
- Division of Performance and Health (Sports Medicine), Department of Sport and Sport Science, TU Dortmund University, Dortmund, Germany
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22
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Andreu-Caravaca L, Ramos-Campo DJ, Chung LH, Rubio-Arias JÁ. Dosage and Effectiveness of Aerobic Training on Cardiorespiratory Fitness, Functional Capacity, Balance, and Fatigue in People With Multiple Sclerosis: A Systematic Review and Meta-Analysis. Arch Phys Med Rehabil 2021; 102:1826-1839. [PMID: 33567335 DOI: 10.1016/j.apmr.2021.01.078] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/07/2021] [Accepted: 01/19/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES To evaluate the benefits of aerobic training (AT) programs on cardiorespiratory fitness, functional capacity, balance, and fatigue in individuals with multiple sclerosis (MS) and to identify the optimal dosage of AT programs for individuals with MS via a systematic review with meta-analysis. DATA SOURCES Two electronic databases were searched until March 2020 (PubMed-Medline and Web of Science). STUDY SELECTION Studies examining the effect of AT program on cardiorespiratory fitness, functional capacity, balance, and fatigue were included. DATA EXTRACTION After applying the inclusion and exclusion criteria, we included 43 studies. A total sample of 1070 individuals with MS (AT group, n=680; control group, n=390) were analyzed. DATA SYNTHESIS The AT group demonstrated a significant increase in cardiorespiratory fitness (standardized mean difference [SMD], 0.29; P=.002), functional capacity (timed Up and Go Test: SMD, -1.14; P<.001; gait speed: SMD, -1.19; P<.001; walking endurance: SMD, 0.46; P<.001), and balance (SMD, 3.49; P<.001) after training. Fatigue perception also decreased (SMD, -0.45; P<.001). However, no significant differences were observed when compared with the control group in either cardiorespiratory fitness (SMD, 0.14; P=.19) or fatigue perception. Nevertheless, we observed significant differences between the AT and control groups in balance (P=.02), gait speed (P=.02), and walking endurance (P=.03), favoring the participants who performed AT. Regarding the subgroup analysis, no significant differences were observed between subgroups in any of the variables studied except for gait speed, for which a greater increase in posttraining was observed when the AT program applied the continuous method (χ2=7.75; P=.005) and the exercises were performed by walking (χ2=9.36; P=.002). CONCLUSIONS Aerobic training improves gait speed, walking endurance, and balance. Cardiorespiratory fitness and fatigue perception also improved after AT, but we found no differences with the control group. In addition, subgroup analysis suggested that training using continuous and walking methods could optimize gait speed.
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Affiliation(s)
- Luis Andreu-Caravaca
- International Chair of Sports Medicine, Catholic University of Murcia, Murcia, Spain; Faculty of Sport, Catholic University of Murcia, Murcia, Spain
| | | | - Linda H Chung
- UCAM Research Center for High Performance Sport, Catholic University of Murcia, Murcia, Spain
| | - Jacobo Á Rubio-Arias
- LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science-INEF, Madrid; Department of Education, University of Almería, Almeria, Spain.
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23
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Energy Expenditure and Oxygen Consumption During Activities of Daily Living in People With Multiple Sclerosis and Healthy Subjects: An Ecological Approach to Estimate Real-Life Fatigue and Fatigability. Arch Phys Med Rehabil 2021; 102:1482-1489. [PMID: 33539804 DOI: 10.1016/j.apmr.2020.12.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/17/2020] [Accepted: 12/30/2020] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To compare oxygen consumption and energy expenditure (EE) of the activities of daily living (ADL) in people with multiple sclerosis (PwMS) and healthy subjects. DESIGN Cross-sectional observational study. SETTING Outpatient care facilities. PARTICIPANTS Twenty-four moderately impaired PwMS and 21 healthy controls (N=45). INTERVENTION Not applicable. MAIN OUTCOME MEASURES Oxygen consumption, EE rate, and total EE assessed by portable open-circuit spirometry during the accomplishment of a comprehensive set of 14 ADL. Body composition was also assessed with bioelectrical impedance analysis. Body cell mass was used to normalize metabolic rates between groups. RESULTS PwMS exhibited significantly higher oxygen consumption than controls in transfer and mobility tasks (walking with stairs: +10.4%, P=.04; without stairs: +15.2%, P=.002; driving: +10.4%, P=.04) and higher EE rates for walking (+13.6%, P=.01). ADL completion took significantly longer in PwMS. Consequently, when total EE to complete each ADL was considered, PwMS used significantly more energy in 10 of the 14 ADL. Of these, "climb stairs" and walking with or without stairs showed the largest differences (+100%, +99.5%, +79.3%, respectively; all P values<.0005), followed by "dressing" (+48.8%; P=.002), "laundry" (+41.7%; P=.007), and "shopping" (+40.1%; P=.003). CONCLUSIONS Moderately disabled PwMS display oxygen consumption and EE rates during ADL that are comparable to those of matched healthy subjects, except for the activities that involve walking. Although metabolic rates were not different for the majority of ADL, PwMS showed higher total EE to complete the same activities at a comparable work intensity, which may contribute to the burden of "real-life" tiredness and fatigue typically described in this population. Importantly, the subjective Modified Fatigue Impact Scale score significantly correlated to EE and oxygen consumption of selected ADL, such as "make a bed," "driving," "clean surfaces," and "climb stairs." The joint employment of open-circuit spirometry during ADL and body composition analysis allows an accurate metabolic characterization of PwMS, who frequently complain of fatigue.
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Riemenschneider M, Hvid LG, Ringgaard S, Nygaard MKE, Eskildsen SF, Petersen T, Stenager E, Dalgas U. Study protocol: randomised controlled trial evaluating exercise therapy as a supplemental treatment strategy in early multiple sclerosis: the Early Multiple Sclerosis Exercise Study (EMSES). BMJ Open 2021; 11:e043699. [PMID: 33436475 PMCID: PMC7805354 DOI: 10.1136/bmjopen-2020-043699] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
INTRODUCTION In the relapsing remitting type of multiple sclerosis (MS) reducing relapses and neurodegeneration is crucial in halting the long-term impact of the disease. Medical disease-modifying treatments have proven effective, especially when introduced early in the disease course. However, patients still experience disease activity and disability progression, and therefore, supplemental early treatment strategies are warranted. Exercise appear to be one of the most promising supplemental treatment strategies, but a somewhat overlooked 'window of opportunity' exist early in the disease course. The objective of this study is to investigate exercise as a supplementary treatment strategy early in the disease course of MS. METHODS AND ANALYSIS The presented Early Multiple Sclerosis Exercise Study is a 48-week (plus 1-year follow-up) national multicentre single-blinded parallel group randomised controlled trial comparing two groups receiving usual care plus supervised high-intense exercise or plus health education (active control). Additionally, data will be compared with a population-based control group receiving usual care only obtained from the Danish MS Registry. The primary outcomes are annual relapse rate and MRI derived global brain atrophy. The secondary outcomes are disability progression, physical and cognitive function, MS-related symptoms, and exploratory MRI outcomes. All analyses will be performed as intention to treat. ETHICS AND DISSEMINATION The study is approved by The Central Denmark Region Committees on Health Research Ethics (1-10-72-388-17) and registered at the Danish Data Protection Agency (2016-051-000001 (706)). All study findings will be published in scientific peer-reviewed journals and presented at relevant scientific conferences. TRIAL REGISTRATION NUMBER NCT03322761.
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Affiliation(s)
| | - Lars G Hvid
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Steffen Ringgaard
- The MR Research Centre, Aarhus University Hospital, Aarhus N, Denmark
| | - Mikkel K E Nygaard
- Center of Functionnally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Simon F Eskildsen
- Center of Functionnally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Thor Petersen
- The Multiple Sclerosis Clinic, Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Egon Stenager
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department of Neurology, MS-Clinic of Southern Jutland (Sønderborg, Esbjerg, Kolding), Sønderborg, Denmark
| | - Ulrik Dalgas
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark
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25
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d'Arbeloff T, Cooke M, Knodt AR, Sison M, Melzer TR, Ireland D, Poulton R, Ramrakha S, Moffitt TE, Caspi A, Hariri AR. Is cardiovascular fitness associated with structural brain integrity in midlife? Evidence from a population-representative birth cohort study. Aging (Albany NY) 2020; 12:20888-20914. [PMID: 33082296 PMCID: PMC7655208 DOI: 10.18632/aging.104112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/09/2020] [Indexed: 12/31/2022]
Abstract
Improving cardiovascular fitness may buffer against age-related cognitive decline and mitigate dementia risk by staving off brain atrophy. However, it is unclear if such effects reflect factors operating in childhood (neuroselection) or adulthood (neuroprotection). Using data from 807 members of the Dunedin Study, a population-representative birth cohort, we investigated associations between cardiovascular fitness and structural brain integrity at age 45, and the extent to which associations reflected possible neuroselection or neuroprotection by controlling for childhood IQ. Higher fitness, as indexed by VO2Max, was not associated with average cortical thickness, total surface area, or subcortical gray matter volume including the hippocampus. However, higher fitness was associated with thicker cortex in prefrontal and temporal regions as well as greater cerebellar gray matter volume. Higher fitness was also associated with decreased hippocampal fissure volume. These associations were unaffected by the inclusion of childhood IQ in analyses. In contrast, a higher rate of decline in cardiovascular fitness from 26 to 45 years was not robustly associated with structural brain integrity. Our findings are consistent with a neuroprotective account of adult cardiovascular fitness but suggest that effects are not uniformly observed across the brain and reflect contemporaneous fitness more so than decline over time.
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Affiliation(s)
- Tracy d'Arbeloff
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
| | - Megan Cooke
- Center for Addiction Medicine, Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Annchen R Knodt
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
| | - Maria Sison
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
| | - Tracy R Melzer
- New Zealand Brain Research Institute, Christchurch, New Zealand
- Department of Medicine, University of Otago, Christchurch, New Zealand
| | - David Ireland
- Dunedin Multidisciplinary Health and Development Research Unit, Department of Psychology, University of Otago, Dunedin, NZ
| | - Richie Poulton
- Dunedin Multidisciplinary Health and Development Research Unit, Department of Psychology, University of Otago, Dunedin, NZ
| | - Sandhya Ramrakha
- Dunedin Multidisciplinary Health and Development Research Unit, Department of Psychology, University of Otago, Dunedin, NZ
| | - Terrie E Moffitt
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
- Social, Genetic, and Developmental Psychiatry Research Centre, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, De Crespigny Park, Denmark Hill, London, UK
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC 27708, USA
- Center for Genomic and Computational Biology, Duke University, Durham, NC 27708, USA
| | - Avshalom Caspi
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
- Social, Genetic, and Developmental Psychiatry Research Centre, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, De Crespigny Park, Denmark Hill, London, UK
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC 27708, USA
- Center for Genomic and Computational Biology, Duke University, Durham, NC 27708, USA
| | - Ahmad R Hariri
- Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, USA
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Cardiopulmonary Exercise Testing Using the Modified Balke Protocol in Fully Ambulatory People With Multiple Sclerosis. Cardiopulm Phys Ther J 2020; 32:57-65. [DOI: 10.1097/cpt.0000000000000141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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d'Arbeloff T. Cardiovascular fitness and structural brain integrity: an update on current evidence. GeroScience 2020; 42:1285-1306. [PMID: 32767221 PMCID: PMC7525918 DOI: 10.1007/s11357-020-00244-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/29/2020] [Indexed: 02/06/2023] Open
Abstract
An aging global population and accompanying increases in the prevalence of age-related disorders are leading to greater financial, social, and health burdens. Aging-related dementias are one such category of age-related disorders that are associated with progressive loss of physical and cognitive integrity. One proposed preventative measure against risk of aging-related dementia is improving cardiovascular fitness, which may help reverse or buffer age-related brain atrophy associated with worse aging-related outcomes and cognitive decline. However, research into the beneficial potential of cardiovascular fitness has suffered from extreme heterogeneity in study design methodology leading to a lack of cohesion in the field and undermining any potential causal evidence that may exist. In addition, cardiovascular fitness and exercise are often conflated, leading to a lack of clarity in results. Here, I review recent literature on cardiovascular fitness, brain structure, and aging with the following goals: (a) to disentangle and lay out recent findings specific to aging, cardiovascular fitness, and brain structure, and (b) to ascertain the extent to which causal evidence actually exists. I suggest that, while there is some preliminary evidence for a link between cardiovascular fitness and brain structure in older adults, more research is still needed before definitive causal conclusions can be drawn. I conclude with a discussion of existing gaps in the field and suggestions for how they may be addressed by future research.
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Affiliation(s)
- Tracy d'Arbeloff
- Laboratory of NeuroGenetics, Department of Psychology & Neuroscience, Duke University, Durham, NC, 27708, USA.
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28
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Coates KD, Aboodarda SJ, Krüger RL, Martin T, Metz LM, Jarvis SE, Millet GY. Multiple sclerosis-related fatigue: the role of impaired corticospinal responses and heightened exercise fatigability. J Neurophysiol 2020; 124:1131-1143. [PMID: 32877296 DOI: 10.1152/jn.00165.2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
It is unclear whether motor fatigability and perceived fatigue share a common pathophysiology in people with multiple sclerosis (PwMS). This cross-sectional investigation explored the relationship between the mechanisms of motor fatigability from cycling and fatigue severity in PwMS. Thirteen highly fatigued (HF) and thirteen nonfatigued (LF) PwMS and thirteen healthy controls (CON) completed a step test until volitional exhaustion on an innovative cycle ergometer. Neuromuscular evaluations involving femoral nerve electrical stimulation and transcranial magnetic stimulation were performed every 3 min throughout cycling. One-way ANOVA at baseline and exhaustion uncovered evidence of consistently smaller motor evoked potential (MEP) amplitudes (P = 0.011) and prolonged MEP latencies (P = 0.041) in HF as well as a greater decline in maximal voluntary contraction force (HF: 63 ± 13%; LF: 75 ± 13%; CON: 73 ± 11% of pre; P = 0.037) and potentiated twitch force (HF: 35 ± 13%; LF: 50 ± 16%; CON: 47 ± 17% of pre; P = 0.049) in HF at volitional exhaustion. Hierarchical regression determined that fatigue severity on the Fatigue Severity Scale was predicted by prolonged MEP latencies (change in r2 = 0.389), elevated peripheral muscle fatigability (change in r2 = 0.183), and depressive symptoms (change in r2 = 0.213). These findings indicate that MS-related fatigue is distinguished by disrupted corticospinal responsiveness, which could suggest progressive pathology, but fatigability from whole body exercise and depressive symptoms also influence perceptions of fatigue in PwMS.NEW & NOTEWORTHY The etiology of fatigability from whole body exercise was examined for the first time to accurately elucidate the relationship between fatigue and fatigability in multiple sclerosis (MS). Compromised corticospinal responsiveness predicted fatigue severity, providing a novel, objective indicator of fatigue in MS. Although the impaired corticomotor transmission did not aggravate muscle activation in this group of people with multiple sclerosis (PwMS) of lower disability, heightened muscle fatigability was seen to contribute to perceptions of fatigue in PwMS.
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Affiliation(s)
- Kyla D Coates
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Saied Jalal Aboodarda
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Renata L Krüger
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Tristan Martin
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.,Unité Mixte de Recherche-S 1075 Comete Moblites: Vieillissement Pathologies Santé, Institut National de la Santé et de la Recherche Médicale, Normandy University, Caen, France
| | - Luanne M Metz
- Hotchkiss Brain Institute and the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Scott E Jarvis
- Hotchkiss Brain Institute and the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Guillaume Y Millet
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.,Inter-University Laboratory of Human Movement Biology, Jean Monnet University-Saint-Etienne, University of Lyon, Saint-Etienne, France.,Institut Universitaire de France, Paris, France
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29
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Valet M, Stoquart G, de Broglie C, Francaux M, Lejeune T. Simplified indices of exercise tolerance in patients with multiple sclerosis and healthy subjects: A case-control study. Scand J Med Sci Sports 2020; 30:1908-1917. [PMID: 32608527 DOI: 10.1111/sms.13756] [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: 09/26/2018] [Revised: 09/02/2019] [Accepted: 06/16/2020] [Indexed: 11/30/2022]
Abstract
Among patients with multiple sclerosis (MS), the impairment of exercise tolerance is closely related to disability. Maximal oxygen uptake (VO2max ) is the gold standard to assess exercise tolerance in healthy subjects (HS). Among patients with MS, the accuracy of VO2max measurement is often impaired because the patients are unable to reach the maximal exercise intensity due to interdependent factors linked to the disease (such as pathological fatigue, pain, lack of exercise habit, and lack of mobility). This study assesses the accuracy of simplified indices for assessing exercise tolerance, which are more suitable in patients with MS. They are simple in the way they are either measurable during submaximal exercise (oxygen uptake efficiency slopes (OUES), physical working capacity at 75% of maximal heart rate (PWC75% ), oxygen consumption at a respiratory exchange ratio of 1 (VO2 @RER1)) or not based on gas exchange analysis (peak work rate (PWR)-based predictive equation and PWC75% ). All indices were significantly lower in the MS group compared to the HS group (P < .001). OUES appeared highly correlated (r > .70, P < .001) with VO2peak , in both groups, without difference between groups. PWR-based prediction of VO2peak showed a standard error of the estimate of 315 mL min-1 in HS and 176 mL min-1 in MS. PWC75% did not correlate to VO2peak in neither group. These findings suggest an impairment of exercise tolerance functions in mildly disabled persons with MS, independently from other factors. Submaximal indices involving gas exchange analysis or peakWR-based estimation of VO2peak are usable to accurately assess exercise tolerance.
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Affiliation(s)
- Maxime Valet
- Secteur des Sciences de la Santé, Institut de Recherche Expérimentale et Clinique, Neuromusculoskeletal Lab (NMSK), Université Catholique de Louvain, Brussels, Belgium.,Service de Médecine Physique et Réadaptation, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Gaëtan Stoquart
- Secteur des Sciences de la Santé, Institut de Recherche Expérimentale et Clinique, Neuromusculoskeletal Lab (NMSK), Université Catholique de Louvain, Brussels, Belgium.,Service de Médecine Physique et Réadaptation, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Clémence de Broglie
- Service de Médecine Physique et Réadaptation, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Marc Francaux
- Institute of NeuroScience, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Thierry Lejeune
- Secteur des Sciences de la Santé, Institut de Recherche Expérimentale et Clinique, Neuromusculoskeletal Lab (NMSK), Université Catholique de Louvain, Brussels, Belgium.,Service de Médecine Physique et Réadaptation, Cliniques Universitaires Saint-Luc, Brussels, Belgium
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Ferri A, Lanfranconi F, Corna G, Bonazzi R, Marchese S, Magnoni A, Tremolizzo L. Tailored Exercise Training Counteracts Muscle Disuse and Attenuates Reductions in Physical Function in Individuals With Amyotrophic Lateral Sclerosis. Front Physiol 2019; 10:1537. [PMID: 31920728 PMCID: PMC6939659 DOI: 10.3389/fphys.2019.01537] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/05/2019] [Indexed: 12/24/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease, characterized by the progressive loss of motor neurons, which leads to a reduction in strength and exercise capacity. Although the concept of "Exercise is Medicine" is accepted for many diseases, the role of exercise in individuals with ALS is still debated. The aim of this study was to propose a tailored exercise training program that was both safe and effective for individuals with ALS, and to evaluate the effects of this combined, moderate-intensity, aerobic and strength training program on aerobic capacities, strength, and physical function. Sixteen individuals with ALS were randomly assigned to either a training (three times a week for 12 weeks; TRAIN, n = 8) or usual care (continued their usual standard of care and served as control; UC, n = 8) group. Peak power, peak oxygen uptake, as well as the gas exchange threshold (GET) during a cardiopulmonary exercise test (CPET) on a cycle ergometer, and the maximal strength (1RM) of the knee extensor muscles, were evaluated before and after 12 weeks. Participants also performed the "Timed Up and Go" (TUG) and the "6-min walking" (6MWT) tests. The ALS Functional Rating Scale revisited (ALSFRS-R), the ALS Severity Scale (ALS-SS), and the McGill quality of life (QoL) questionnaire were also measured. The GET increased from 0.94 ± 0.08 to 1.06 ± 0.10 L min-1 in TRAIN (p = 0.009) and decreased from 0.79 ± 0.17 to 0.72 ± 0.17 L min-1 in UC (p = 0.001). There was a significant difference between groups for changes in TUG (9.1 ± 5.5% improvement in TRAIN and 56.8 ± 18.5% worsening in UC, p = 0.002), ALSFRS-R (4.7 ± 2.6% decrease in TRAIN and 23.0 ± 5.6% decrease in UC, p = 0.007), and for the ALS-SS (2.2 ± 2.1% decrease in TRAIN and 12.4 ± 4.4% decrease in UC, p = 0.04). Even if the 1RM of the knee-extensor muscles showed a tendency to increase in TRAIN (70.1 ± 30.0%, p = 0.07), there was not a statistically significant difference (p = 0.57) with respect to the changes in the UC group (44.9 ± 20.7% increase, p = 0.11). This study showed that a combined moderate-intensity aerobic and strength training program, tailored to the physical capacities of each individual, can improve aerobic fitness and maintain physical function in individuals with ALS.
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Affiliation(s)
- Alessandra Ferri
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Francesca Lanfranconi
- Foundation Monza and Brianza for the Mother and Her Child, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Giovanni Corna
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Riccardo Bonazzi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | | | - Andrea Magnoni
- Resting Home “San Pietro,” Cooperativa La Meridiana, Monza, Italy
| | - Lucio Tremolizzo
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
- Neurology Unit, San Gerardo Hospital, Monza, Italy
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Functional Electrical Stimulation Cycling Exercise for People with Multiple Sclerosis. Curr Treat Options Neurol 2019; 21:54. [PMID: 31705304 DOI: 10.1007/s11940-019-0597-7] [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: 02/05/2023]
Abstract
PURPOSE OF REVIEW There has been substantial interest in the role of exercise for managing impairments, limitations, and disability progression among persons with multiple sclerosis (MS). Despite established benefits of exercise training for persons who have mild-to-moderate MS, the ability to deliver exercise to persons who experience higher disability remains challenging. One promising approach for exercise in this population is functional electrical stimulation (FES) cycling. This review provides a summary of the current evidence for FES cycling as an exercise training modality in persons with MS with respect to prescription, safety, tolerability, and acute and chronic effects. RECENT FINDINGS We searched the literature for studies involving FES cycling exercise in persons with MS published in English up until July 2019. Eight studies were retrieved: two studies examined acute effects, two studies examined chronic effects, and four studies reported on both acute and chronic effects of FES cycling exercise. The overall quality of the studies was low, with only one, small, randomized controlled trial (RCT). There is limited but promising evidence for the application of FES cycling exercise among persons with MS who have moderate-to-severe disability. Participants were capable of engaging in regular FES cycling exercise (~ 30 min, 2-3×/week), with few, mild adverse events experienced. Preliminary evidence from small, mostly uncontrolled trials supports the potential benefits of FES cycling on physiological fitness, walking mobility, and symptoms of fatigue and pain. High-quality RCTs of FES cycling exercise are necessary for providing recommendations for integrating exercise training in the management of advanced MS.
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Prolonged cortical silent period is related to poor fitness and fatigue, but not tumor necrosis factor, in Multiple Sclerosis. Clin Neurophysiol 2019; 130:474-483. [PMID: 30771724 DOI: 10.1016/j.clinph.2018.12.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/08/2018] [Accepted: 12/21/2018] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Poor fitness among people with Multiple Sclerosis (MS) aggravates disease symptoms. Whether low fitness levels accompany brain functioning changes is unknown. METHODS MS patients (n = 82) completed a graded maximal exercise test, blood was drawn, and transcranial magnetic stimulation determined resting and active motor thresholds, motor evoked potential latency, and cortical silent period (CSP). RESULTS Sixty-two percent of participants had fitness levels ranked below 10th percentile. Fitness was not associated with disability measured using the Expanded Disability Status Scale (EDSS). Regression analyses revealed that, cardiorespiratory fitness, when controlling for disease demographics, contributed 23.7% (p < 0.001) to the model explaining variance in CSP. Regression analysis using cardiorespiratory fitness and CSP as predictors showed that CSP alone explained 19.9% of variance in subjective fatigue (p = 0.002). Tumor necrosis factor was not associated with any variable. CONCLUSION Low fitness was associated with longer CSP in MS. Longer CSP was, in turn, related to greater MS fatigue. SIGNIFICANCE MS patients had extremely low levels of cardiorespiratory fitness. Poor fitness predicted longer CSP, a marker of greater intracortical inhibition, which was linked to MS fatigue. Future research should examine whether aerobic training could shorten CSP and potentially lessen inhibition of cortical networks.
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Madsen LT, Dalgas U, Hvid LG, Bansi J. A cross-sectional study on the relationship between cardiorespiratory fitness, disease severity and walking speed in persons with Multiple Sclerosis. Mult Scler Relat Disord 2019; 29:35-40. [PMID: 30658262 DOI: 10.1016/j.msard.2019.01.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 12/19/2018] [Accepted: 01/10/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND In persons with Multiple Sclerosis (PwMS) cardiorespiratory fitness has been associated with disease severity, walking capacity and comorbidities. However, current evidence is of moderate quality and a large-scale single-center study is needed to further elucidate these relationships OBJECTIVE: The purpose of the study was 1) to examine the relationship between cardiorespiratory fitness and disease severity in PwMS; 2) to investigate the relationship between cardiorespiratory fitness and walking speed and comorbidities; and 3) to examine the potential impact of Multiple Sclerosis (MS) disease type on these relationships METHODS: Data was collected from a database consisting of data from 700 inpatients at Valens Rehabilitation Center, Switzerland. VO2peak (cardiorespiratory fitness), information on disease course and MS type, walking performance, comorbidities and anthropometric was eligible from 242 PwMS. RESULTS Cardiorespiratory fitness and Expanded Disability Status Scale (EDSS) was inversely related (r = -0.465, p < .01). A multiple linear regression analysis showed that an increase of 1 point on the EDSS score was associated with a decrease of 1.88 mL kg-1 min-1 and explained 36% of the variance, when adjusted for time since diagnosis, gender, age, and MS type. Walking speed and cardiorespiratory fitness was significantly correlated (r = 0.584, p < .01) and the relapse remitting MS (RRMS) group (1.12 ± 0.42 m/s) walked significantly faster than the secondary progressive MS (SPMS) group (0.91 ± 0.37 m/s) p < .05, but the difference was non-significant when adjusted for age, p = .429. CONCLUSION The present study shows that 1) an increase of 1 EDSS point is associated with a decrease of 1.88 mL kg-1 min-1 when adjusted for time since diagnosis, gender, age and MS type, 2) cardiorespiratory fitness and walking speed was significantly related but only minimally affected by MS type, and 3) hypertension is associated with a lower cardiorespiratory fitness level.
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Affiliation(s)
- Laurits T Madsen
- Aarhus University, Section for Sport Science, Department of Public Health, Aarhus, Denmark.
| | - Ulrik Dalgas
- Aarhus University, Section for Sport Science, Department of Public Health, Aarhus, Denmark
| | - Lars G Hvid
- Aarhus University, Section for Sport Science, Department of Public Health, Aarhus, Denmark
| | - Jens Bansi
- Kliniken Valens, Department of Neurology, Valens, Switzerland
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Mähler A, Balogh A, Csizmadia I, Klug L, Kleinewietfeld M, Steiniger J, Šušnjar U, Müller DN, Boschmann M, Paul F. Metabolic, Mental and Immunological Effects of Normoxic and Hypoxic Training in Multiple Sclerosis Patients: A Pilot Study. Front Immunol 2018; 9:2819. [PMID: 30555484 PMCID: PMC6281996 DOI: 10.3389/fimmu.2018.02819] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 11/14/2018] [Indexed: 01/24/2023] Open
Abstract
Background: Physical activity might attenuate inflammation and neurodegeneration in multiple sclerosis (MS). Erythropoietin, which is produced upon exposure to hypoxia, is thought to act as a neuroprotective agent in MS. Therefore, we studied the effects of intermittent hypoxic training on activity energy expenditure, maximal workload, serum erythropoietin, and immunophenotype focusing on regulatory and IL-17A-producing T cells. Methods: We assigned 34 relapsing-remitting MS patients within a randomized, single blind, parallel-group study to either normoxic (NO) or hypoxic (HO) treadmill training, both 3 times/week for 1 h over 4 weeks (Clinicaltrials.gov identifier: NCT02509897). Before and after training, activity energy expenditure (metabolic chamber), maximal workload (incremental treadmill test), walking ability, depressive symptoms (Beck Depression Inventory I), serum erythropoietin concentrations, and immunophenotype of peripheral blood mononuclear cells (PBMCs) were assessed. Results: Energy expenditure did not change due to training in both groups, but was rather fueled by fat than by carbohydrate oxidation after HO training (P = 0.002). Maximal workload increased by 40 Watt and 42 Watt in the NO and HO group, respectively (both P < 0.0001). Distance patients walked in 6 min increased by 25 m and 27 m in the NO and HO group, respectively (NO P = 0.02; HO P = 0.01). Beck Depression Inventory score markedly decreased in both groups (NO P = 0.03; HO P = 0.0003). NO training shifted Treg subpopulations by increasing and decreasing the frequency of CD39+ and CD31+ Tregs, respectively, and decreased IL-17A-producing CD4+ cells. HO training provoked none of these immunological changes. Erythropoietin concentrations were within normal range and did not significantly change in either group. Conclusion: 4 weeks of moderate treadmill training had considerable effects on fitness level and mood in MS patients, both under normoxic and hypoxic conditions. Additionally, NO training improved Th17/Treg profile and HO training improved fatty acid oxidation during exercise. These effects could not be attributed to an increase of erythropoietin. Clinical Trial Registration: ClinicalTrials.gov; NCT02509897; http://www.clinicaltrials.gov
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Affiliation(s)
- Anja Mähler
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany.,German Centre for Cardiovascular Research Partner Site Berlin, Berlin, Germany
| | - Andras Balogh
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany.,German Centre for Cardiovascular Research Partner Site Berlin, Berlin, Germany.,Max Delbruck Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Ilona Csizmadia
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany
| | - Lars Klug
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany
| | - Markus Kleinewietfeld
- VIB Laboratory of Translational Immunomodulation, VIB Center for Inflammation Research Hasselt University, Diepenbeek, Belgium
| | - Jochen Steiniger
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany
| | - Urša Šušnjar
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany.,International Centre for Genetic Engineering and Biotechnology, Triste, Italy
| | - Dominik N Müller
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany.,German Centre for Cardiovascular Research Partner Site Berlin, Berlin, Germany.,Max Delbruck Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Michael Boschmann
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany
| | - Friedemann Paul
- Experimental and Clinical Research Center Cooperation Between Charité Universitätsmedizin Berlin and Max Delbruck Center for Molecular Medicine, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany.,NeuroCure Clinical Research Center and Department of Neurology, Charité Universitätsmedizin Berlin Humboldt Universität Berlin, Berlin, Germany
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Edwards T, Motl RW, Sebastião E, Pilutti LA. Pilot randomized controlled trial of functional electrical stimulation cycling exercise in people with multiple sclerosis with mobility disability. Mult Scler Relat Disord 2018; 26:103-111. [DOI: 10.1016/j.msard.2018.08.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 08/17/2018] [Accepted: 08/22/2018] [Indexed: 10/28/2022]
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Langeskov-Christensen M, Eskildsen S, Stenager E, Boye Jensen H, Hvilsted Nielsen H, Petersen T, Grøndahl Hvid L, Hämäläinen P, Marstrand L, Dalgas U. Aerobic Capacity Is Not Associated with Most Cognitive Domains in Patients with Multiple Sclerosis-A Cross-Sectional Investigation. J Clin Med 2018; 7:jcm7090272. [PMID: 30208632 PMCID: PMC6162835 DOI: 10.3390/jcm7090272] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/05/2018] [Accepted: 09/07/2018] [Indexed: 12/25/2022] Open
Abstract
(1) Background: Cognitive impairment is highly prevalent in multiple sclerosis (MS). Staying physically fit may be associated with preservation of cognitive performance in persons with MS (pwMS); (2) Objective: To investigate the association between aerobic capacity and the cognitive domains of information processing, learning and memory, and verbal fluency as well as single and composite z-scores of the Brief Repeatable Battery of Neuropsychological tests (BRBNT) in pwMS; (3) Methods: All subjects first performed the BRBNT and then a maximal oxygen consumption (VO2-max) test on a bicycle ergometer as a measure of aerobic capacity. Simple and multiple (adjusting for age, sex, and education level) regression analyses were performed to evaluate the relationship between aerobic capacity and cognitive performance in different domains. Published international norms were used to compute z-scores for each individual and composite BRBNT score. Furthermore, cognitive impairment was defined as one or more z-scores ≤−1.5 standard deviation (SD) of healthy controls; (4) Results: Eighty-four subjects were included (44.9 ± 9 years, 16.3 ± 2 education years, Expanded Disability Status Scale (EDSS): 2.6 ± 1.4, MS-type (relapsing-remitting, primary progressive, or secondary progressive): 73/6/5, disease duration: 9.9 ± 7 years, VO2-max: 28.4 ± 7.0 mL O2/min/kg). No significant associations between aerobic capacity and cognitive performance in the individual BRBNT tests were found, except that a weak relationship was found between aerobic capacity and the composite processing speed z-score (R2 = 0.06, p = 0.02). The average global BRBNT z-score (−0.2 ± 0.66) was not associated with aerobic capacity. Comparison of the cognitively impaired group (34.5%) with the nonimpaired group (65.5%) showed lower aerobic capacity in the impaired group (25.9 ± 1 vs. 29.7 ± 1 mLO2/min/kg, p = 0.02); (5) Conclusions: Limited support was found for an association between performance in most cognitive domains and aerobic capacity in the present MS group with a third of patients showing signs of cognitive impairments.
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Affiliation(s)
| | - Søren Eskildsen
- Section for Sport Science, Department of Public Health, Aarhus University, 8000 Aarhus C, Denmark.
| | - Egon Stenager
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark/MS-Clinic of Southern Jutland (Sønderborg, Kolding, Esbjerg), Department of Neurology, Hospital of Southern Denmark, 6400 Sønderborg, Denmark.
| | - Henrik Boye Jensen
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark/MS-Clinic of Southern Jutland (Sønderborg, Kolding, Esbjerg), Department of Neurology, Hospital of Southern Denmark, 6400 Sønderborg, Denmark.
- Brain and Nerve Diseases, Department of Neurology, Hospital Lillebaelt, 6000 Kolding, Denmark.
| | - Helle Hvilsted Nielsen
- The Multiple Sclerosis Clinic, Department of Neurology, Odense University Hospital, 5000 Odense C, Denmark.
| | - Thor Petersen
- The Multiple Sclerosis Clinic, Department of Neurology, Aarhus University Hospital, 8000 Aarhus C, Denmark.
| | - Lars Grøndahl Hvid
- Section for Sport Science, Department of Public Health, Aarhus University, 8000 Aarhus C, Denmark.
| | | | - Lisbet Marstrand
- The Danish Multiple Sclerosis Centre, Department of Neurology, Rigshospitalet, 2100 Copenhagen, Denmark.
| | - Ulrik Dalgas
- Section for Sport Science, Department of Public Health, Aarhus University, 8000 Aarhus C, Denmark.
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Dalgas U. Exercise therapy in multiple sclerosis and its effects on function and the brain. Neurodegener Dis Manag 2017; 7:35-40. [DOI: 10.2217/nmt-2017-0040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Exercise therapy is a promising nonpharmacological therapy in people with multiple sclerosis (MS). Although exercise training may induce a transient worsening of symptoms in some MS patients, it is generally considered safe and does not increase the risk of relapses. Exercise training can lead to clinically relevant improvements in physical function, but should be considered an adjunct to specific task-based training. Exercise has also shown positive effects on the brain, including improvements in brain volume and cognition. In summary, exercise therapy is a safe and potent nonpharmacological intervention in MS, with beneficial effects on both functional capacity and the brain.
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Affiliation(s)
- Ulrik Dalgas
- Department of Public Health, Section of Sport Science, Aarhus University, Denmark
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38
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Rahbek MA, Mikkelsen EE, Overgaard K, Vinge L, Andersen H, Dalgas U. Exercise in myasthenia gravis: A feasibility study of aerobic and resistance training. Muscle Nerve 2017; 56:700-709. [PMID: 28085204 DOI: 10.1002/mus.25552] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 12/21/2016] [Accepted: 12/28/2016] [Indexed: 12/11/2022]
Abstract
INTRODUCTION It has not been established whether progressive resistance training (PRT) and aerobic training (AT) are feasible and efficient in myasthenia gravis (MG). METHODS Fifteen subjects with generalized MG (Myasthenia Gravis Foundation of America (MGFA) clinical classification II-IV) were randomly assigned to 20 training sessions during 8 weeks of either PRT or AT. Feasibility was evaluated based on adherence, drop-out rate, adverse events, and Quantitative Myasthenia Gravis (QMG) score. RESULTS Twelve subjects (MGFA II, n = 11; MGFA III, n=1) completed the intervention with a mean adherence of 95 % ± 8. One dropout (PRT) could potentially be related to PRT. Both groups reported adverse events, including bulbar symptoms (n = 2) and increased fatigue (n = 3), but no change in QMG score was observed in either group. The PRT group showed increases in maximal strength and functional capacity. CONCLUSIONS Eight weeks of moderate to high intensity AT and PRT were feasible for most patients with mild MG. Maximal strength and functional capacity increased in the PRT group. Muscle Nerve 56: 700-709, 2017.
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Affiliation(s)
- Martin Amadeus Rahbek
- Section for Sport Science, Department of Public Health, Aarhus University, Denmark, Dalgas Avenue 4, 8000, Aarhus C, Denmark
| | - Erik Elgaard Mikkelsen
- Section for Sport Science, Department of Public Health, Aarhus University, Denmark, Dalgas Avenue 4, 8000, Aarhus C, Denmark
| | - Kristian Overgaard
- Section for Sport Science, Department of Public Health, Aarhus University, Denmark, Dalgas Avenue 4, 8000, Aarhus C, Denmark
| | - Lotte Vinge
- Department of Neurology, Aarhus University Hospital, Noerrebrogade, 44, 8000 Aarhus C, Denmark
| | - Henning Andersen
- Department of Neurology, Aarhus University Hospital, Noerrebrogade, 44, 8000 Aarhus C, Denmark
| | - Ulrik Dalgas
- Section for Sport Science, Department of Public Health, Aarhus University, Denmark, Dalgas Avenue 4, 8000, Aarhus C, Denmark
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Sandroff BM, Balto JM, Klaren RE, Sommer SK, DeLuca J, Motl RW. Systematically developed pilot randomized controlled trial of exercise and cognition in persons with multiple sclerosis. Neurocase 2016; 22:443-450. [PMID: 27671243 DOI: 10.1080/13554794.2016.1237658] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Cognitive impairment is common and debilitating among persons with multiple sclerosis (MS) and might be managed with exercise training. The present pilot study adopted a single-blind randomized controlled trial (RCT) design and is the first to examine the effect of a systematically developed, progressive treadmill walking exercise training intervention on cognition among fully ambulatory persons with MS. Ten fully ambulatory females with MS were randomly assigned into exercise training intervention or waitlist control conditions. The intervention condition involved 12 weeks of supervised, progressive chronic treadmill walking exercise training. Participants underwent measures of cognition (i.e., cognitive processing speed (CPS), executive function), walking performance, and cardiorespiratory fitness before and after the 12-week period; baseline and follow-up assessments were performed by blinded assessors. Overall, there were large intervention effects on CPS (d = 0.95), walking performance (d = 0.76), and cardiorespiratory fitness (d > 1.08). The change in cardiorespiratory fitness was significantly associated with change in CPS (r = .60), but not walking performance. This small pilot RCT provides preliminary proof-of-concept data supporting progressive treadmill walking exercise training for potentially improving CPS, walking performance, and cardiorespiratory fitness in fully ambulatory persons with MS, and that improved fitness might be a possible mechanism for improved CPS.
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Affiliation(s)
- Brian M Sandroff
- a Department of Neuropsychology and Neuroscience Research , Kessler Foundation , West Orange , NJ , USA
| | - Julia M Balto
- b Department of Kinesiology and Community Health , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Rachel E Klaren
- b Department of Kinesiology and Community Health , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Sarah K Sommer
- b Department of Kinesiology and Community Health , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - John DeLuca
- a Department of Neuropsychology and Neuroscience Research , Kessler Foundation , West Orange , NJ , USA
| | - Robert W Motl
- b Department of Kinesiology and Community Health , University of Illinois at Urbana-Champaign , Urbana , IL , USA
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Effect of Exercise Training on Fitness in Multiple Sclerosis: A Meta-Analysis. Arch Phys Med Rehabil 2016; 97:1564-1572. [PMID: 26896750 DOI: 10.1016/j.apmr.2016.01.023] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/06/2016] [Accepted: 01/28/2016] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To provide a quantitative synthesis of randomized controlled trials (RCTs) examining the effect of exercise training on muscular and cardiorespiratory fitness in persons with multiple sclerosis (MS). DATA SOURCES Three electronic databases, PubMed, Google Scholar, and Web of Science, were searched for all relevant articles published up until October 2014. STUDY SELECTION Keywords included exercise or aerobic or strength or resistance training or cardiorespiratory and multiple sclerosis. Trials examining the effect of exercise training on muscular and/or cardiorespiratory fitness parameters were included. DATA EXTRACTION The initial search yielded 1501 articles; of these, 62 were reviewed in detail, and 20 RCTs met the inclusion criteria and provided enough data to compute effect sizes (ESs) (Cohen d). The meta-analyses was conducted using a random effects model to compute the overall or mean ES per fitness parameter. DATA SYNTHESIS The mean ES was .27 (SE=.05; 95% confidence interval [CI], .17-.38; z=5.05; P<.001) for muscular fitness outcomes and .47 (SE=.09; 95% CI, .30-.65; z=5.4; P<.001) for cardiorespiratory fitness outcomes. The weighted mean ES was not heterogeneous for muscular (Q13=11.09, P=.60, I(2)=.00) or cardiorespiratory (Q9=7.83, P=.55, I(2)=.00) fitness outcomes. CONCLUSIONS The cumulative evidence supports that exercise training is associated with changes in muscular (small in magnitude) and cardiorespiratory (moderate in magnitude) fitness outcomes in persons with MS. Such an indication of magnitude is important for clinical research and practice by providing an evidence-based estimate of the actual benefit that exercise training confers on physiological fitness.
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Aerobic capacity in persons with multiple sclerosis: a systematic review and meta-analysis. Sports Med 2016; 45:905-23. [PMID: 25739555 DOI: 10.1007/s40279-015-0307-x] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Aerobic capacity (VO2max) is a strong health and performance predictor and is regarded as a key physiological measure in the healthy population and in persons with multiple sclerosis (PwMS). However, no studies have tried to synthesize the existing knowledge regarding VO2max in PwMS. OBJECTIVES The objectives of this study were to (1) systematically review the psychometric properties of the VO2max test; (2) systematically review the literature on VO2max compared with healthy populations; (3) summarize correlates of VO2max; and (4) to review and conduct a meta-analysis of longitudinal exercise studies evaluating training-induced effects on VO2max in PwMS. DATA SOURCES AND STUDY SELECTION A systematic literature search of six databases (PubMed, EMBASE, Cochrane Library, PEDro, CINAHL and SPORTDiscus) was performed. To be included, the study had to (1) enrol participants with definite MS according to defined criteria; (2) assess aerobic capacity (VO2max) by means of a graded exercise test to voluntary exhaustion; (3) had undergone peer review; and (4) be available in English, Danish or Dutch. STUDY APPRAISAL AND SYNTHESIS METHODS The psychometric properties of the VO2max test in PwMS were reviewed with respect to reliability, validity and responsiveness. Simple Pearson correlation analysis was used to assess the relation between key study characteristics and the reported mean VO2max. The methodological quality of the intervention studies was evaluated using the original 11-item Physiotherapy Evidence Database (PEDro) scale. A random coefficient model was used to summarize individual, weighted, standardized effects of studies that assessed the effects of exercise on aerobic capacity in PwMS. RESULTS A total of 40 studies, covering 165 healthy controls and 1,137 PwMS, fulfilled the inclusion criteria. VO2max testing in PwMS can be considered a valid measure of aerobic capacity, at least in PwMS having low-to-mild disability, and an ∼10% change between two tests performed on separate days can be considered the smallest reliable change (with 95% certainty) in VO2max in PwMS. The average body-weight-adjusted VO2max was significantly lower in PwMS (25.5 ± 5.2 mL·kg(-1)·min(-1)) compared with healthy controls (30.9 ± 5.4 mL·kg(-1)·min(-1)). The analysis of VO2max correlates revealed associations with a variety of outcomes covering all levels of the International Classification of Functioning, Disability and Health (ICF) model. The meta-analysis showed that aerobic training in PwMS may improve VO2max by as much as 3.5 mL·kg(-1)·min(-1). CONCLUSIONS A valid and reliable test can be performed, in at least ambulant PwMS, by the gold standard whole-body maximal exercise test. Aerobic capacity in PwMS is impaired compared with healthy people, and is significantly associated with factors on all levels of the ICF model, including disease severity. Aerobic training can improve aerobic capacity in PwMS to a degree that is associated with secondary health benefits.
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Comprehensive Profile of Cardiopulmonary Exercise Testing in Ambulatory Persons with Multiple Sclerosis. Sports Med 2016; 46:1365-79. [DOI: 10.1007/s40279-016-0472-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Feasibility and Safety of Cardiopulmonary Exercise Testing in Multiple Sclerosis: A Systematic Review. Arch Phys Med Rehabil 2015; 96:2055-66. [DOI: 10.1016/j.apmr.2015.04.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/01/2015] [Accepted: 04/16/2015] [Indexed: 11/20/2022]
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Wens I, Dalgas U, Vandenabeele F, Grevendonk L, Verboven K, Hansen D, Eijnde BO. High Intensity Exercise in Multiple Sclerosis: Effects on Muscle Contractile Characteristics and Exercise Capacity, a Randomised Controlled Trial. PLoS One 2015; 10:e0133697. [PMID: 26418222 PMCID: PMC4587912 DOI: 10.1371/journal.pone.0133697] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 06/30/2015] [Indexed: 12/22/2022] Open
Abstract
Introduction Low-to-moderate intensity exercise improves muscle contractile properties and endurance capacity in multiple sclerosis (MS). The impact of high intensity exercise remains unknown. Methods Thirty-four MS patients were randomized into a sedentary control group (SED, n = 11) and 2 exercise groups that performed 12 weeks of a high intensity interval (HITR, n = 12) or high intensity continuous cardiovascular training (HCTR, n = 11), both in combination with resistance training. M.vastus lateralis fiber cross sectional area (CSA) and proportion, knee-flexor/extensor strength, body composition, maximal endurance capacity and self-reported physical activity levels were assessed before and after 12 weeks. Results Compared to SED, 12 weeks of high intensity exercise increased mean fiber CSA (HITR: +21±7%, HCTR: +23±5%). Furthermore, fiber type I CSA increased in HCTR (+29±6%), whereas type II (+23±7%) and IIa (+23±6%,) CSA increased in HITR. Muscle strength improved in HITR and HCTR (between +13±7% and +45±20%) and body fat percentage tended to decrease (HITR: -3.9±2.0% and HCTR: -2.5±1.2%). Furthermore, endurance capacity (Wmax +21±4%, time to exhaustion +24±5%, VO2max +17±5%) and lean tissue mass (+1.4±0.5%) only increased in HITR. Finally self-reported physical activity levels increased 73±19% and 86±27% in HCTR and HITR, respectively. Conclusion High intensity cardiovascular exercise combined with resistance training was safe, well tolerated and improved muscle contractile characteristics and endurance capacity in MS. Trial Registration ClinicalTrials.gov NCT01845896
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Affiliation(s)
- Inez Wens
- REVAL Rehabilitation Research Center, BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building A, Diepenbeek, Belgium
- * E-mail:
| | - Ulrik Dalgas
- Section of Sport Science, Dep. Public Health, Aarhus University, Dalgas Avenue 4, 8000, Aarhus, C, Denmark
| | - Frank Vandenabeele
- REVAL Rehabilitation Research Center, BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building A, Diepenbeek, Belgium
| | - Lotte Grevendonk
- REVAL Rehabilitation Research Center, BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building A, Diepenbeek, Belgium
| | - Kenneth Verboven
- REVAL Rehabilitation Research Center, BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building A, Diepenbeek, Belgium
| | - Dominique Hansen
- REVAL Rehabilitation Research Center, BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building A, Diepenbeek, Belgium
| | - Bert O. Eijnde
- REVAL Rehabilitation Research Center, BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Agoralaan Building A, Diepenbeek, Belgium
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Update in Exercise Testing. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2015. [DOI: 10.1007/s40141-015-0095-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Effects of a Short Physical Exercise Intervention on Patients with Multiple Sclerosis (MS). Int J Mol Sci 2015; 16:15761-75. [PMID: 26184173 PMCID: PMC4519923 DOI: 10.3390/ijms160715761] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/30/2015] [Accepted: 07/06/2015] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The aim of this prospective randomized controlled trial was to investigate if a short-term endurance or combined endurance/resistance exercise program was sufficient to improve aerobic capacity and maximum force in adult patients (18-65 years) with multiple sclerosis (MS). METHODS All patients performed a three-month exercise program consisting of two training sessions per week, lasting 40 min each, with moderate intensity. All patients had a maximum value of 6 (low to moderate disability) on the Expanded Disability Status Scale (EDSS). One group (combined workout group (CWG); 15 females, 4 males) completed a combined endurance/resistance workout (20 min on a bicycle ergometer, followed by 20 min of resistance training), while the other group (endurance workout group (EWG); 13 females, 5 males) completed a 40 min endurance training program. Aerobic capacity was assessed as peak oxygen uptake, ventilatory anaerobic threshold, and workload expressed as Watts. Maximum force of knee and shoulder extensors and flexors was measured using isokinetic testing. Quality of life was assessed with the SF-36 questionnaire, and fatigue was measured using the Modified Fatigue Impact Scale. RESULTS Both training groups increased in aerobic capacity and maximum force. EWG, as well as CWG, showed improvement in several subscales of the SF-36 questionnaire and decrease of their fatigue. CONCLUSION A short exercise intervention increased both aerobic capacity and maximum force independent of whether endurance or combined endurance/resistance workouts were performed.
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Heine M, Wens I, Langeskov-Christensen M, Verschuren O, Eijnde BO, Kwakkel G, Dalgas U. Cardiopulmonary fitness is related to disease severity in multiple sclerosis. Mult Scler 2015; 22:231-8. [PMID: 26014607 DOI: 10.1177/1352458515581437] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 03/17/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND In persons with MS (pwMS), a lower cardiopulmonary fitness has been associated with a higher risk for secondary disorders, decreased functional capacity, symptom worsening and reduced health-related quality of life. OBJECTIVE To investigate the association between disease severity and cardiopulmonary fitness. METHODS Data from cardiopulmonary exercise tests, previously conducted in three different countries, were pooled. The association between disease severity (Expanded Disability Status Scale (EDSS)) and cardiopulmonary fitness (peak oxygen uptake (VO2peak)) was adjusted for age, sex and the country of origin. RESULTS The combined sample comprised 116 ambulant pwMS having a mean (± SD) EDSS score of 2.7 ± 1.3. There was a significant correlation (r = -0.418, p < .01) between VO2peak and EDSS. A multiple regression model (R(2) = 0.520, p < .01) was constructed to describe VO2peak (mL∙kg(-1)∙min(-1)); VO2peak = 36.622 - 5.433 (Sex (1=men)) - 0.124 (Age) - 2.082 (EDSS) + 2.737 (Belgium) + 8.674 (Denmark). CONCLUSION There was a significant association between disease severity and cardiopulmonary fitness. The close relation between cardiopulmonary fitness and chronic conditions associated with physical inactivity, suggest a progressive increase in risk of secondary health conditions in pwMS.
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Affiliation(s)
- Martin Heine
- Brain Center Rudolf Magnus and Center of Excellence for Rehabilitation Medicine, University Medical Center Utrecht and Rehabilitation Center De Hoogstraat, Utrecht, The Netherlands
| | - Inez Wens
- Rehabilitation Research Center (REVAL), Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
| | | | - Olaf Verschuren
- Brain Center Rudolf Magnus and Center of Excellence for Rehabilitation Medicine, University Medical Center Utrecht and Rehabilitation Center De Hoogstraat, Utrecht, The Netherlands
| | - Bert O Eijnde
- Rehabilitation Research Center (REVAL), Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
| | - Gert Kwakkel
- Department of Rehabilitation Medicine, MOVE Research Institute Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; Department of Neurorehabilitation, Centre of Rehabilitation and Rheumatology READE, Amsterdam, The Netherlands
| | - Ulrik Dalgas
- Department of Public Health, Section of Sport Science, Aarhus University, Aarhus, Denmark
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Heine M, van den Akker LE, Verschuren O, Visser-Meily A, Kwakkel G. Reliability and responsiveness of cardiopulmonary exercise testing in fatigued persons with multiple sclerosis and low to mild disability. PLoS One 2015; 10:e0122260. [PMID: 25789625 PMCID: PMC4366200 DOI: 10.1371/journal.pone.0122260] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 02/15/2015] [Indexed: 12/27/2022] Open
Abstract
Background Peak oxygen uptake (VO2peak) via cardiopulmonary exercise testing is considered the gold standard for testing aerobic capacity in healthy participants and people with various medical conditions. The reliability and responsiveness of cardiopulmonary exercise testing outcomes in persons with MS (PwMS) have not been extensively studied. Objective (1) to investigate the reliability of cardiopulmonary exercise parameters in PwMS; (2) to determine the responsiveness, in terms of the smallest detectable change (SDC), for each parameter. Design Two repeated measurements of cardiopulmonary exercise outcomes were obtained, with a median time interval of 16 days. Methods Thirty-two PwMS suffering from subjective fatigue performed cardiopulmonary exercise tests on a cycle ergometer, to voluntary exhaustion. We calculated the reliability, in terms of the intra-class correlation coefficient (ICC [2,k]; absolute agreement), and the measurement error, in terms of standard error of measurement (SEM) and SDC at individual (SDCindividual) and group level (SDCgroup). Results The ICC for VO2peak was 0.951, with an SEM of 0.131 L∙min−1 and an SDCindividual of 0.364 L∙min−1. When corrected for bodyweight, the ICC of VO2peak was 0.933, with an SEM of 1.7 mL∙kg−1∙min−1 and in an SDCindividual of 4.6 mL∙kg−1∙min−1. Limitations Generalization of our study results is restricted to fatigued PwMS with a low to mild level of disability. Conclusions At individual level, cardiopulmonary exercise testing can be used reliably to assess physical fitness in terms of VO2peak, but less so to determine significant changes. At group level, VO2peak can be reliably used to determine physical fitness status and establish change over time.
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Affiliation(s)
- Martin Heine
- Brain Center Rudolf Magnus and Center of Excellence for Rehabilitation Medicine, University Medical Center Utrecht and Rehabilitation Center De Hoogstraat, Rembrandtkade 10, 3583 TM, Utrecht, The Netherlands
| | - Lizanne Eva van den Akker
- Department of Rehabilitation Medicine & EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Olaf Verschuren
- Brain Center Rudolf Magnus and Center of Excellence for Rehabilitation Medicine, University Medical Center Utrecht and Rehabilitation Center De Hoogstraat, Rembrandtkade 10, 3583 TM, Utrecht, The Netherlands
| | - Anne Visser-Meily
- Brain Center Rudolf Magnus and Center of Excellence for Rehabilitation Medicine, University Medical Center Utrecht and Rehabilitation Center De Hoogstraat, Rembrandtkade 10, 3583 TM, Utrecht, The Netherlands
| | - Gert Kwakkel
- Department of Rehabilitation Medicine, MOVE Research Institute Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; Department of Neurorehabilitation, Centre of Rehabilitation and Rheumatology READE, Amsterdam, The Netherlands
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