Effect of Indoor Plants on Cardiopulmonary System

NCT ID: NCT06060145

Last Updated: 2024-07-25

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 41 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-12-21
• Study Completion Date: 2024-03-31

Brief Summary

This is a randomized controlled human exposure crossover study, aims to explore the health benefits of indoor plants on cardiopulmonary system on adults.

Detailed Description

The researchers will conduct a randomized cross-controlled trial involving 48 healthy adults in Hangzhou, China. These participants will be randomly assigned into two groups, each comprising 24 individuals. Each participant will undergo two separate exposures in an office setting: one exposure without any plants present, and another exposure with 34 to 38 potted plants. A washout period of at least 4 weeks will be implemented between the two exposures. Questionnaires, physical examinations and the collection of biological samples will be conducted prior to exposure and after exposure. In addition, the monitoring of negative air ion, air pollutants and noise exposure, as well as collection of environmental microbial samples, will be conducted on weekdays. Researchers will gather samples of blood, urine, nasal secretion, and exhaled breath condensate from participants.

Conditions

Cardiopulmonary

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: PREVENTION
• Blinding Strategy: SINGLE

Study Groups

Plants placed in an office environment

Participants in this group will receive an intervention of plants placed in an office environment.

Group Type: EXPERIMENTAL

Plants placed in an office environment

Intervention Type: OTHER

The intervention group will be provided with an intervention consisting of 34-38 potted plants arranged in an office environment for a duration of 8 hours (09:00-17:00) on weekdays (Monday to Friday) for 4 weeks.

Devoid of any plant presence in an office environment

Participants in this group will be exposed to an office environment devoid of any plant presence.

Group Type: ACTIVE_COMPARATOR

Devoid of any plant presence in an office environment

Intervention Type: OTHER

Participants assigned to the control group will be exposed to an office environment devoid of any plant presence for a duration of 8 hours (09:00-17:00) on weekdays (Monday to Friday) for 4 weeks.

Interventions

Plants placed in an office environment

The intervention group will be provided with an intervention consisting of 34-38 potted plants arranged in an office environment for a duration of 8 hours (09:00-17:00) on weekdays (Monday to Friday) for 4 weeks.

Intervention Type: OTHER

Devoid of any plant presence in an office environment

Participants assigned to the control group will be exposed to an office environment devoid of any plant presence for a duration of 8 hours (09:00-17:00) on weekdays (Monday to Friday) for 4 weeks.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Living in Hangzhou during the study period;
• Non-smoking, no history of alcohol or drug abuse;
• Staying indoors in daytime we required.

Exclusion Criteria

• Current or ever smokers;
• Subjects with allergic disease, such as allergic rhinitis, allergic asthma, and atopy;
• Subjects with cardiovascular disease, such as congenital heart disease, pulmonary heart disease, and hypertension;
• Subjects with respiratory disease, such as asthma, chronic bronchitis, and chronic obstructive pulmonary disease;
• Subjects with chronic disease, such as diabetes, chronic hepatitis, and kidney disease;
• Subjects with a history of major surgery;
• Medication use or dietary supplements intake in recent two months;
• Unable to cooperate with follow-up.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 35 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Zhejiang Chinese Medical University

OTHER_GOV

Sponsor Role: collaborator

Lina Zhang

OTHER_GOV

Sponsor Role: lead

Responsible Party

Lina Zhang

Lecturer

Responsibility Role: SPONSOR_INVESTIGATOR

Principal Investigators

Lina Zhang, Ph.D

Role: PRINCIPAL_INVESTIGATOR

School of Public Health, Zhejiang Chinese Medical University

Locations

Zhejiang Chinese Medicine University

Huangzhou, Zhejiang, China

Countries

China

Other Identifiers

20230922-4

Identifier Type: -

Identifier Source: org_study_id