Effects of Nordic Walking Exercise on Gait, Motor/Non-motor Symptoms, and Exercise Biomarkers in Parkinson's Disease
NCT ID: NCT04237025
Last Updated: 2022-03-31
Study Results
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Basic Information
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COMPLETED
NA
12 participants
INTERVENTIONAL
2021-02-15
2021-12-01
Brief Summary
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This study will examine both the immediate and long-term effects of Nordic walking (NW) exercise on walking function, PD symptoms and exercise bio-markers after a supervised and individually progressed 6-week NW exercise training period and after a 3-month independent NW exercise phase.
NW, as a task- specific exercise with higher energy demands than regular walking, has good practicality for independent walking exercise once the training program is completed. Therefore, this study will also examine independent NW exercise engagement after a supervised training program to assess feasibility and sustainability of this mode of task-specific aerobic exercise.
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Detailed Description
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Individualized aerobic exercise prescription that is task-specific, challenging, and feasible for an independent exercise program is needed for individuals with PD to optimize their walking and motor function and sustain long-term engagement in regular physical exercise. Walking as a form of aerobic exercise has been reported to be safe in a community setting and to improve functional and gait outcomes and quality of life in PD. Nordic walking (NW) is a form of fitness walking using specialty poles that mimics the full body movement pattern of cross-country skiing, can be performed in varied terrains and may offer additional benefits beyond simple treadmill or over ground walking. NW technique has specific benefits for Parkinson gait, as it incorporates rhythmic timing of inter-limb coordination, increased engagement of upper extremities and upright trunk, and high energy expenditure resulting in a beneficial aerobic conditioning effect.
There is also consistent scientific evidence in both clinical and animal studies that shows the benefits of exercise at the cellular level in PD. Moderate to intense aerobic exercise enhances PD brain health and supports neural plasticity. Cellular changes include increased blood flow and angiogenesis, up-regulated neurotrophic factors, reduced neuro-inflammation, and enhanced immune responses. This project will evaluate the effects of NW in persons with PD at the molecular level with 3 known exercise-related bio-markers. These 3 bio-markers are brain-derived neurotropic factor (BDNF), cortisol, and alpha-amylase (α-amylase) proteins.
Study objectives:
Given the rapid accumulation of evidence showing the benefits of exercise in PD, there is a need to investigate which modes of exercise training have positive effects both on clinical measures and on bio-markers that are indicative of biochemical changes to support PD brain health. With a previously reported moderate aerobic conditioning effect following NW in both healthy elderly and PD cohorts, the premise is that this intensive fitness walking may produce changes at the cellular and molecular levels. Investigating changes in walking and motor/non-motor function following NW exercise and correlating these changes with exercise-related bio-markers may provide foundation support for the neuro-protective benefit of NW in persons with PD. Thus, the purpose of this proof-of concept study is to investigate the immediate and long-term effects of NW exercise on walking function, motor/non-motor PD symptoms and exercise-related bio-markers in persons with mild to moderate idiopathic PD. Additionally, this study will examine independent NW exercise engagement after a supervised training program to assess feasibility and sustainability of this mode of task-specific aerobic exercise.
Study Design:
This study will employ a prospective, single cohort pre- and post-intervention research design. Rationale for this design is twofold: 1. proof-of-concept in order to assess intervention effects based on functional and clinical measures following NW training and examine if these measures are associated with changes in exercise-related bio-markers in PD; and 2. assessment of feasibility of independent engagement in NW exercise after a supervised program in persons with mild to moderate PD as a mode of task-specific physical activity engagement. This research design will involve a 4-week baseline phase with two time points for assessment of dependent measures (T0-A and T0-B) to assess for a stable baseline, followed by a 6-week NW training intervention phase with a post-training assessment (T1) at the end of the 6 weeks, and a 3-month independent NW exercise phase with a follow-up assessment at the end of the 3 months (T2). Previous work in our lab has demonstrated significant improvements in walking and balance measures following a 6-week treadmill and rhythmic over ground auditory cuing protocols, and therefore, a 6-week training duration is expected to be sufficient for inducing training effects. Supervised NW adherence and independent NW exercise adherence, as well as any adverse effects will be monitored to determine feasibility and safety, particularly for independent NW phase of the study.
Data Analysis:
Descriptive statistics on patients' demographic characteristics (e.g. age, disease duration, stage, PD sub-type, fall history, activity level classification, medications and co-morbidity) will be documented. PD sub-type is categorized as tremor dominant, posture instability/gait difficulty, and indeterminate, based on MDS-UPDRS score. Descriptive statistics on patient's training sessions and training progression across the six weeks will be synthesized and analyzed. This training session data will include: training activities, walking speed, duration and distance of NW, Rating of Perceived Exertion, and walking terrain. Data from activity logs will be examined to reflect independent NW exercise adherence and activity level (number of steps/day) both during the 6-week training program and the follow-up independent exercise phase. Fall report data and any adverse events will be documented. This adherence and safety descriptive data during 3-month follow-up phase will reflect feasibility of independent home NW exercise program following a supervised NW training program.
Descriptive statistics for the gait, clinical PD-motor and non-motor, and bio-marker outcome measures will be calculated. Comparison of the two-baseline gait and clinical measures (Baseline-week 1 T0-A vs baseline week 4 T0-B) will be analyzed using dependent t-tests to determine if there was a stable baseline for these dependent measures. If analysis reveals no differences between baseline measures, then T0-B will be used for comparison to T1 and T2 measures. If analysis reveals differences between baseline measures, then the average of the two measures will be used for comparison to T1 and T2 measures. Dependent measures distribution across the three time points (T0, T1, T2) will be analyzed to assess if meet the assumption of normal distributions. If the data are normally distributed, one-way repeated measures analysis of variance (ANOVA) with planned contrasts will be used for each outcome measure to compare baseline to T1, baseline to T2, and T1 to T2. ANOVA is a statistical method to test differences between two or more means (mean = average of a data set). A repeated measures ANOVA can be used to determine whether there is any statistically significant difference between the means of three or related groups (in this study, a related group is a specific time point). IF normality assumptions are not met, then the Friedman test with post hoc Wilcoxon sign-ranked pairwise comparisons will be used for each outcome measure to compare baseline to T1, baseline to T2, and T1 to T2 timepoints. Bonferroni correction was applied due to the number of analyses being conducted. Level of significance was set at 0.05. Repeated measures ANOVA will also be used to assess the changes in means over 8 collection time points in the BDNF, cortisol, and α-amylase data and show a time-course of the NW exercise effects in persons with PD. P value was set at p \<.05 for all statistical tests. To examine the magnitude of the training effects, the Cohen effect size will be calculated for those variables that demonstrated statistically significant change.
Raw data of gene expression will be normalized and background corrected to set the data set to a common scale and remove the effects of non-specific binding across the micro arrays. The Limma package in R, a computational programming language for statistical computing and graphics will be used. Differential-expressed genes can then be identified to show gene expression changes that are statistically significant between different time points.
Conditions
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Study Design
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NA
SINGLE_GROUP
In addition to the supervised NW training sessions, participants will be asked to complete independent NW exercise at least 2 times weekly during the 6-week training period. Following the completion of the 6-week supervised NW training period, participants will be asked to independently continue their NW exercise as least three times per week for the 3-month follow-up period. Independent NW exercise logs and adherence will be monitored during both the supervised training phase and the 3-month follow-up phase.
TREATMENT
NONE
Study Groups
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Nordic walking exercise group
Supervised Nordic walking exercise training 3 times per week for the first two weeks and 2 times per week for next four weeks (total 6 weeks). In addition to independent Nordic walking exercise twice weekly during intervention phase and three times weekly during the 3-month followup phase.
Nordic walking exercise
Supervised Nordic Walking (NW) exercise will be conducted in a small group setting with a 2:1 participant to trainer ratio providing individualized training instruction. Training will be conducted for a total of 14 one-hour sessions over a 6-week period. Training will take place at an outdoor community track with progression tasks on hills or grassy terrain. The one-hour training sessions will include a 10-minute warm-up period, 45 minutes of individualized NW training, and a 5-minute cool down period. The target training duration goal for NW exercise will be 45 minutes of continuous walking at moderate intensity based on target heart rate and Rating of Perceived Exertion. NW exercise program will be customized and progressed for each participant by trainers with ongoing assessment of participant's gait pattern, NW technique, and exercise responses during the training sessions. Group comradery and accountability will be facilitated through training in small group training context.
Interventions
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Nordic walking exercise
Supervised Nordic Walking (NW) exercise will be conducted in a small group setting with a 2:1 participant to trainer ratio providing individualized training instruction. Training will be conducted for a total of 14 one-hour sessions over a 6-week period. Training will take place at an outdoor community track with progression tasks on hills or grassy terrain. The one-hour training sessions will include a 10-minute warm-up period, 45 minutes of individualized NW training, and a 5-minute cool down period. The target training duration goal for NW exercise will be 45 minutes of continuous walking at moderate intensity based on target heart rate and Rating of Perceived Exertion. NW exercise program will be customized and progressed for each participant by trainers with ongoing assessment of participant's gait pattern, NW technique, and exercise responses during the training sessions. Group comradery and accountability will be facilitated through training in small group training context.
Eligibility Criteria
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Inclusion Criteria
2. Parkinson medications and dosing must be unchanged over the past month
3. Must be residing in the community (eg... not supportive living or skilled nursing facility)
4. Must have the ability to safely and continuously ambulate a minimum distance of 500 feet independently without an assistive device
5. Must have the ability to ascend and descend a full flight of stairs with or without the use of railings with no more than stand by assistance
6. Must have functional vision with or without corrective lens for safe outdoor mobility
Exclusion Criteria
2. Must have no significant comorbidities (cardiorespiratory conditions, orthopedic conditions, or recent orthopedic surgery) that would limit their ability to safely participate in an intensive walking exercise program
3. Must not have cognitive impairment as determined by a Montreal Cognitive Assessment score below 21 points
4. Must not have had recent deep brain stimulation (DBS) (within last 3 months) or planned DBS in next 4 months
5. Must not be previously trained in Nordic Walking technique And are currently engaged in moderate intensity Nordic Walking exercise at least 3 days per week
21 Years
ALL
No
Sponsors
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Grand Valley State University
OTHER
Responsible Party
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Cathy Harro
Associate Professor, Physical Therapy
Principal Investigators
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Cathy C Harro, DPT, MS
Role: PRINCIPAL_INVESTIGATOR
Grand Valley State University
Sok Kean Khoo, PhD
Role: PRINCIPAL_INVESTIGATOR
Grand Valley State University
Michael Shoemaker, DPT, PhD
Role: PRINCIPAL_INVESTIGATOR
Grand Valley State University
Locations
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Grand Valley State University
Grand Rapids, Michigan, United States
Countries
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References
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Ahlskog JE. Does vigorous exercise have a neuroprotective effect in Parkinson disease? Neurology. 2011 Jul 19;77(3):288-94. doi: 10.1212/WNL.0b013e318225ab66.
Flach A, Jaegers L, Krieger M, Bixler E, Kelly P, Weiss EP, Ahmad SO. Endurance exercise improves function in individuals with Parkinson's disease: A meta-analysis. Neurosci Lett. 2017 Oct 17;659:115-119. doi: 10.1016/j.neulet.2017.08.076. Epub 2017 Sep 1.
Ahlskog JE. Aerobic Exercise: Evidence for a Direct Brain Effect to Slow Parkinson Disease Progression. Mayo Clin Proc. 2018 Mar;93(3):360-372. doi: 10.1016/j.mayocp.2017.12.015.
Uc EY, Doerschug KC, Magnotta V, Dawson JD, Thomsen TR, Kline JN, Rizzo M, Newman SR, Mehta S, Grabowski TJ, Bruss J, Blanchette DR, Anderson SW, Voss MW, Kramer AF, Darling WG. Phase I/II randomized trial of aerobic exercise in Parkinson disease in a community setting. Neurology. 2014 Jul 29;83(5):413-25. doi: 10.1212/WNL.0000000000000644. Epub 2014 Jul 2.
Bombieri F, Schena F, Pellegrini B, Barone P, Tinazzi M, Erro R. Walking on four limbs: A systematic review of Nordic Walking in Parkinson disease. Parkinsonism Relat Disord. 2017 May;38:8-12. doi: 10.1016/j.parkreldis.2017.02.004. Epub 2017 Feb 6.
Cugusi L, Manca A, Dragone D, Deriu F, Solla P, Secci C, Monticone M, Mercuro G. Nordic Walking for the Management of People With Parkinson Disease: A Systematic Review. PM R. 2017 Nov;9(11):1157-1166. doi: 10.1016/j.pmrj.2017.06.021. Epub 2017 Jul 8.
Skorkowska-Telichowska K, Kropielnicka K, Bulinska K, Pilch U, Wozniewski M, Szuba A, Jasinski R. Nordic walking in the second half of life. Aging Clin Exp Res. 2016 Dec;28(6):1035-1046. doi: 10.1007/s40520-016-0531-8. Epub 2016 Jan 23.
Monteiro EP, Franzoni LT, Cubillos DM, de Oliveira Fagundes A, Carvalho AR, Oliveira HB, Pantoja PD, Schuch FB, Rieder CR, Martinez FG, Peyre-Tartaruga LA. Effects of Nordic walking training on functional parameters in Parkinson's disease: a randomized controlled clinical trial. Scand J Med Sci Sports. 2017 Mar;27(3):351-358. doi: 10.1111/sms.12652. Epub 2016 Feb 2.
Petzinger GM, Fisher BE, McEwen S, Beeler JA, Walsh JP, Jakowec MW. Exercise-enhanced neuroplasticity targeting motor and cognitive circuitry in Parkinson's disease. Lancet Neurol. 2013 Jul;12(7):716-26. doi: 10.1016/S1474-4422(13)70123-6.
Hirsch MA, van Wegen EEH, Newman MA, Heyn PC. Exercise-induced increase in brain-derived neurotrophic factor in human Parkinson's disease: a systematic review and meta-analysis. Transl Neurodegener. 2018 Mar 20;7:7. doi: 10.1186/s40035-018-0112-1. eCollection 2018.
Soares NM, Pereira GM, Altmann V, de Almeida RMM, Rieder CRM. Cortisol levels, motor, cognitive and behavioral symptoms in Parkinson's disease: a systematic review. J Neural Transm (Vienna). 2019 Mar;126(3):219-232. doi: 10.1007/s00702-018-1947-4. Epub 2018 Oct 29.
Smyth N, Skender E, David FJ, Munoz MJ, Fantuzzi G, Clow A, Goldman JG, Corcos DM. Endurance exercise reduces cortisol in Parkinson's disease with mild cognitive impairment. Mov Disord. 2019 Aug;34(8):1238-1239. doi: 10.1002/mds.27719. Epub 2019 May 20. No abstract available.
Masters JM, Noyce AJ, Warner TT, Giovannoni G, Proctor GB. Elevated salivary protein in Parkinson's disease and salivary DJ-1 as a potential marker of disease severity. Parkinsonism Relat Disord. 2015 Oct;21(10):1251-5. doi: 10.1016/j.parkreldis.2015.07.021. Epub 2015 Jul 23.
Provided Documents
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Document Type: Informed Consent Form
Other Identifiers
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20-101-H
Identifier Type: -
Identifier Source: org_study_id
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