NCT04463732|Completed
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Sponsor study identifier
observational
10
1 country
1
Study Start
July 1, 2020
Actual (reported)Primary Completion
December 31, 2020
Actual (reported)Study Completion
December 31, 2020
Actual (reported)Maximal oxygen consumption, VO2max, is the gold standard to evaluate human aerobic fitness, which stands for the maximal capacity of cardiorespiratory system and musculoskeletal system to transport and utilize oxygen. Previous study showed that there is significant correlation between maximal oxygen consumption from cardiopulmonary exercise test and strength and endurance of lower extremities. In people with sedentary lifestyle, they often limited by the lower limb muscle performance during cardiopulmonary exercise test. Their breathing patterns are more irregular than athletes during cardiopulmonary exercise test. However, there is no study comparing the activation pattern of respiratory muscles between these two groups. Whether the breathing pattern in people with lower exercise capacity is less efficient under exertional activities still unknown. The purpose of this study is to investigate the relationship between maximal oxygen consumption and inspiratory muscle activation pattern in healthy adults.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 31, 2020
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
June 29, 2020
Actual (reported)July 1, 2020
Actual (reported)July 9, 2020
Actual (reported)December 31, 2020
Actual (reported)December 31, 2020
Actual (reported)Diaphragm and Sternocleidomastoid muscle activation
Root mean square values
during the loaded inspiratory muscle test condition; it would take about 3 minutes
Maximal exercise capacity
Maximal oxygen consumption
during the cardiopulmonary exercise test; it would take about 12 to 15 minutes
Subjects are above 20 years old. Their condition is healthy with no history of inspiratory disease. They can cooperate with the measurements of this study.
This is an observational study. Loaded inspiratory muscle test is setting at 30% of maximal inspiratory pressure. Subjects will perform only 15 breaths under this intensity to exam the performance of their inspiratory muscles. Loaded inspiratory muscle test is not for training. Cardiopulmonary exercise test is performed by using bicycle ergometer. These two tests will be performed at least 1 week separately.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Healthy population is free from abnormal breathing pattern caused by disease. Their terminals of cardiopulmonary exercise test are not limited by symptoms of disease.
School and Graduate Institute of Physical Therapy of National Taiwan University
Taipei, Zhongzheng Dist, 100, Taiwan
Li-Ying Wang, PhD
National Taiwan University
10 participants (actual enrollment reported by the registry).
First Submitted
June 29, 2020
First Posted
July 9, 2020
Study Start
July 1, 2020
Actual (reported)Mediterranean Diet Interventions for Eating Behavior and Cognitive Performance Among Older Adults in the Community
Contact the study team to confirm eligibility.
Primary Completion
December 31, 2020
Actual (reported)Study Completion
December 31, 2020
Actual (reported)Last Updated
March 18, 2021
Record last verified: 2020-06
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Source: ClinicalTrials.gov.
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