Effect of Indoor Plants on Cardiopulmonary System

Lina Zhang

Status: Completed

Conditions: Cardiopulmonary

Treatments: Other: Plants placed in an office environment; Other: Devoid of any plant presence in an office environment

Study type: Interventional

Funder types: Other

Identifiers

NCT06060145

20230922-4

Details and patient eligibility

About

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

Full 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.

Enrollment: 41 patients

Sex: All

Ages: 18 to 35 years old

Volunteers: Accepts Healthy Volunteers

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.

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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41 participants in 2 patient groups

Plants placed in an office environment

Experimental group

Description:

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

Treatment:

Other: Plants placed in an office environment

Devoid of any plant presence in an office environment

Active Comparator group

Description:

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

Treatment:

Other: Devoid of any plant presence in an office environment