Post-COVID-19 Physical Functions and Lifestyle Observational Study
Summary
This cross-sectional observational study (NCT07545499) registered on ClinicalTrials.gov will examine post-COVID-19 syndrome patients grouped by chronotype to compare respiratory muscle strength, physical activity, nutritional habits, and CLOCK gene polymorphisms related to circadian rhythm. The study aims to contribute to individualized rehabilitation and lifestyle interventions for long-COVID patients. This registry entry provides informational documentation of the study design and does not impose compliance obligations.
“Physical Functions and Lifestyle Behaviours in Post-COVID-19 Syndrome Based on Circadian Rhythms”
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What changed
ClinicalTrials.gov has registered an observational cross-sectional study examining post-COVID-19 syndrome patients classified by chronotype (morning, intermediate, evening types) to assess respiratory muscle strength, physical activity levels, nutritional habits, and CLOCK gene polymorphism. Participants are categorized without intervention, and findings may inform individualized rehabilitation strategies. Researchers and clinicians involved in long-COVID studies may find this trial relevant as an ongoing or related effort in the post-COVID-19 research landscape.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Physical Functions and Lifestyle Behaviours in Post-COVID-19 Syndrome Based on Circadian Rhythms
Observational NCT07545499 Kind: OBSERVATIONAL Apr 22, 2026
Abstract
Post-COVID-19 syndrome is associated with persistent symptoms such as fatigue, reduced physical activity, and impaired respiratory function. Circadian rhythm differences (chronotype) may influence lifestyle behaviors including physical activity, nutrition, and sleep patterns.
This observational cross-sectional study aims to compare respiratory muscle strength, physical activity levels, and nutritional habits among individuals with post-COVID-19 syndrome according to their chronotype (morning, intermediate, and evening types).
Additionally, genetic analysis of the CLOCK gene polymorphism will be performed to support objective evaluation of circadian rhythm differences. The findings of this study may help to better understand the role of circadian rhythm in post-COVID-19 syndrome and contribute to the development of individualized rehabilitation and lifestyle interventions.
Conditions: Post-COVID-19 Syndrome
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