Background: Stroke is a cerebrovascular disease which leads to ischemic damage of brain tissue and subsequent neurologic impairment. Aerobic capacity has become an effective prognosis for overall and cardiovascular mortality, but current protocols using in cardiopulmonary test (CPET) are not feasible for the hemiplegics due to balance or coordination deficit. The peak oxygen uptake should be underestimated for survival prediction. The calculation of the oxygen uptake efficiency slope (OUES) is independent of incremental exercise protocol, and patient effort, and is, therefore, suitable for patients who are not able or willing to attain maximal exercise values, just like stroke population.
Study Purpose: This project will enroll stroke patients to evaluate their aerobic capacity by CPET. Compared retrospectively with previous data from heart failure patients and healthy subjects, the investigators may know the aerobic capacity of stroke patients is underestimated or not. By collecting other parameters from exercise test (cardiac output and local tissue perfusion and oxygenation), the investigators could investigate the exercise intolerance of stroke patients is contributed from neurological origin mainly or several factors synergically.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Stroke Physical Fitness Exercise Therapy | Behavioral: aerobic exercise therapy | Not Applicable |
Background: Stroke is a cerebrovascular disease which leads to ischemic damage of brain tissue and subsequent neurologic impairment. Hence, the brain circulation is impaired after stroke which also play a possible cause for exercise intolerance not only neurogenic origin. The peak oxygen uptake in stroke patients was about half in healthy adults with the same age about 30 days after the disease occurrence. Aerobic capacity has become an effective prognosis for overall and cardiovascular mortality, but current protocols using in cardiopulmonary test (CPET) are not feasible for the hemiplegics due to balance or coordination deficit. The peak oxygen uptake should be underestimated for survival prediction. The calculation of the oxygen uptake efficiency slope (OUES) is independent of incremental exercise protocol, and patient effort, and is, therefore, suitable for patients who are not able or willing to attain maximal exercise values, just like stroke population. So it can be regarded as a single index of aerobic capacity that can be determined from submaximal exercise data. In healthy subjects, the OUES has a test-retest reliability similar to VO2peak (intra-class correlation coefficient (ICC) = 0.890 vs ICC = 0.910). The above properties make the OUES a possible alternative for VO2peak in patients with stroke who are unable to attain maximal exercise, and may provide clinicians with a better estimate of aerobic capacity in these patients.
Study purpose: This project will enroll stroke patients under new onset stage, late stage, and exercise intervention, to evaluate their aerobic capacity by CPET. Compared retrospectively with previous data from heart failure patients and healthy subjects, the investigators may know the aerobic capacity of stroke patients is underestimated or not. By collecting other parameters from exercise test (cardiac output and local tissue perfusion and oxygen), the investigators could investigate the exercise intolerance of stroke patients is contributed from neurological origin mainly or several factors synergically.
Methods: This is prospective (for stroke), randomized, parallel-group (for exercise) design with a 1:1 allocation ratio. 120 stroke patients will be randomly assigned to traditional rehabilitation training group(control) and traditional rehabilitation combined with aerobic training group (experiment). All enrolled subjects will perform a CPET before the training initiation. After CPET, the patients in the experimental group need to perform an additional bicycle training program with the intensity of 60 % maximal workload in the previous CPET (three days per week, for 12 weeks with a total of 36 times). When the training course completed, another CPET will be performed to evaluate the aerobic capacity again. In two CPET, a comprehensive cognitive and functional assessment will be also performed.
Measurable parameters: maximal oxygen uptake, maximal cardiac output, cerebral blood flow, oxygen uptake efficiency slope, limb muscle strength and function, and cognitive function was assessed.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 120 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | This is prospective (for stroke), randomized, parallel-group (for exercise) design with a 1:1 allocation ratio. |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Validation of Oxygen Uptake Efficiency Slope in Patients With Stroke |
Actual Study Start Date : | January 1, 2018 |
Estimated Primary Completion Date : | December 30, 2020 |
Estimated Study Completion Date : | December 31, 2020 |
Arm | Intervention/treatment |
---|---|
No Intervention: usual neuro-rehab training
stroke patient under usual neuro-rehab training
|
|
Experimental: Novel exercise training
stroke patient under aerobic exercise training
|
Behavioral: aerobic exercise therapy
aerobic exercise therapy: All enrolled subjects will perform a CPET before the training initiation. After CPET, the patients in the experimental group need to perform an additional bicycle training program with the intensity of 60 % maximal workload in the previous CPET (five days per week, for four weeks with a total of 20 times).
|
Ages Eligible for Study: | 20 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
There are other diseases or behavioral restrictions that prevent exercise training, list below:
Other exercise contraindications:
Taiwan | |
Department of Physical Medicine and Rehabilitation of Keelung Chang Gung Memorial hospital | |
Keelung, Taiwan, 204 |
Tracking Information | |||||
---|---|---|---|---|---|
First Submitted Date ICMJE | May 17, 2019 | ||||
First Posted Date ICMJE | May 23, 2019 | ||||
Last Update Posted Date | January 6, 2020 | ||||
Actual Study Start Date ICMJE | January 1, 2018 | ||||
Estimated Primary Completion Date | December 30, 2020 (Final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
|
||||
Original Primary Outcome Measures ICMJE | Same as current | ||||
Change History | |||||
Current Secondary Outcome Measures ICMJE |
|
||||
Original Secondary Outcome Measures ICMJE | Same as current | ||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||
Descriptive Information | |||||
Brief Title ICMJE | Validation of Oxygen Uptake Efficiency Slope in Patients With Stroke | ||||
Official Title ICMJE | Validation of Oxygen Uptake Efficiency Slope in Patients With Stroke | ||||
Brief Summary |
Background: Stroke is a cerebrovascular disease which leads to ischemic damage of brain tissue and subsequent neurologic impairment. Aerobic capacity has become an effective prognosis for overall and cardiovascular mortality, but current protocols using in cardiopulmonary test (CPET) are not feasible for the hemiplegics due to balance or coordination deficit. The peak oxygen uptake should be underestimated for survival prediction. The calculation of the oxygen uptake efficiency slope (OUES) is independent of incremental exercise protocol, and patient effort, and is, therefore, suitable for patients who are not able or willing to attain maximal exercise values, just like stroke population. Study Purpose: This project will enroll stroke patients to evaluate their aerobic capacity by CPET. Compared retrospectively with previous data from heart failure patients and healthy subjects, the investigators may know the aerobic capacity of stroke patients is underestimated or not. By collecting other parameters from exercise test (cardiac output and local tissue perfusion and oxygenation), the investigators could investigate the exercise intolerance of stroke patients is contributed from neurological origin mainly or several factors synergically. |
||||
Detailed Description |
Background: Stroke is a cerebrovascular disease which leads to ischemic damage of brain tissue and subsequent neurologic impairment. Hence, the brain circulation is impaired after stroke which also play a possible cause for exercise intolerance not only neurogenic origin. The peak oxygen uptake in stroke patients was about half in healthy adults with the same age about 30 days after the disease occurrence. Aerobic capacity has become an effective prognosis for overall and cardiovascular mortality, but current protocols using in cardiopulmonary test (CPET) are not feasible for the hemiplegics due to balance or coordination deficit. The peak oxygen uptake should be underestimated for survival prediction. The calculation of the oxygen uptake efficiency slope (OUES) is independent of incremental exercise protocol, and patient effort, and is, therefore, suitable for patients who are not able or willing to attain maximal exercise values, just like stroke population. So it can be regarded as a single index of aerobic capacity that can be determined from submaximal exercise data. In healthy subjects, the OUES has a test-retest reliability similar to VO2peak (intra-class correlation coefficient (ICC) = 0.890 vs ICC = 0.910). The above properties make the OUES a possible alternative for VO2peak in patients with stroke who are unable to attain maximal exercise, and may provide clinicians with a better estimate of aerobic capacity in these patients. Study purpose: This project will enroll stroke patients under new onset stage, late stage, and exercise intervention, to evaluate their aerobic capacity by CPET. Compared retrospectively with previous data from heart failure patients and healthy subjects, the investigators may know the aerobic capacity of stroke patients is underestimated or not. By collecting other parameters from exercise test (cardiac output and local tissue perfusion and oxygen), the investigators could investigate the exercise intolerance of stroke patients is contributed from neurological origin mainly or several factors synergically. Methods: This is prospective (for stroke), randomized, parallel-group (for exercise) design with a 1:1 allocation ratio. 120 stroke patients will be randomly assigned to traditional rehabilitation training group(control) and traditional rehabilitation combined with aerobic training group (experiment). All enrolled subjects will perform a CPET before the training initiation. After CPET, the patients in the experimental group need to perform an additional bicycle training program with the intensity of 60 % maximal workload in the previous CPET (three days per week, for 12 weeks with a total of 36 times). When the training course completed, another CPET will be performed to evaluate the aerobic capacity again. In two CPET, a comprehensive cognitive and functional assessment will be also performed. Measurable parameters: maximal oxygen uptake, maximal cardiac output, cerebral blood flow, oxygen uptake efficiency slope, limb muscle strength and function, and cognitive function was assessed. |
||||
Study Type ICMJE | Interventional | ||||
Study Phase ICMJE | Not Applicable | ||||
Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Intervention Model Description: This is prospective (for stroke), randomized, parallel-group (for exercise) design with a 1:1 allocation ratio. Masking: None (Open Label)Primary Purpose: Treatment |
||||
Condition ICMJE |
|
||||
Intervention ICMJE | Behavioral: aerobic exercise therapy
aerobic exercise therapy: All enrolled subjects will perform a CPET before the training initiation. After CPET, the patients in the experimental group need to perform an additional bicycle training program with the intensity of 60 % maximal workload in the previous CPET (five days per week, for four weeks with a total of 20 times).
|
||||
Study Arms ICMJE |
|
||||
Publications * | Not Provided | ||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
|||||
Recruitment Information | |||||
Recruitment Status ICMJE | Unknown status | ||||
Estimated Enrollment ICMJE |
120 | ||||
Original Estimated Enrollment ICMJE | Same as current | ||||
Estimated Study Completion Date ICMJE | December 31, 2020 | ||||
Estimated Primary Completion Date | December 30, 2020 (Final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE |
Inclusion Criteria:
Exclusion Criteria: There are other diseases or behavioral restrictions that prevent exercise training, list below:
|
||||
Sex/Gender ICMJE |
|
||||
Ages ICMJE | 20 Years to 80 Years (Adult, Older Adult) | ||||
Accepts Healthy Volunteers ICMJE | No | ||||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
Listed Location Countries ICMJE | Taiwan | ||||
Removed Location Countries | |||||
Administrative Information | |||||
NCT Number ICMJE | NCT03960918 | ||||
Other Study ID Numbers ICMJE | 201600569B0 | ||||
Has Data Monitoring Committee | No | ||||
U.S. FDA-regulated Product |
|
||||
IPD Sharing Statement ICMJE | Not Provided | ||||
Responsible Party | Chang Gung Memorial Hospital | ||||
Study Sponsor ICMJE | Chang Gung Memorial Hospital | ||||
Collaborators ICMJE | Not Provided | ||||
Investigators ICMJE | Not Provided | ||||
PRS Account | Chang Gung Memorial Hospital | ||||
Verification Date | May 2019 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |