RESEARCH

Horticultural Therapy Reduces Biomarkers of Immunosenescence and Inflammaging in Community-Dwelling Older Adults: A Feasibility Pilot Randomized Controlled Trial

In summary, this study found that horticultural therapy improved immune system markers in older adults over a 6-month period. The results indicate that engaging in nature-based activities like gardening could help maintain a healthier immune system as people age.

Program Types: Therapeutic

Population Groups: Chronic/Acute Health Conditions

Setting or Context: Low Care/Independent Long-Term Homes

Health and Wellness Outcomes: Longevity & Aging Well, Improved Quality of Life

Allied Profession Intersections: Nursing

Type of Activity: Indoor Plant Care, Outdoor Gardening, Forest/Natural Area Immersion

Evidence Type: Randomized Controlled Trials

Access: Free

Print Form

Summary

This study examined how horticultural therapy (HT) affects the immune system of older adults. The researchers conducted a trial with 59 participants aged 60-85, randomly assigning them to either receive HT sessions over 6 months or be in a waitlist control group. HT involved activities like indoor gardening, park visits, and outdoor planting. The researchers took blood samples from participants at the start, middle, and end of the study to analyze changes in their immune cells and inflammation levels.

The results showed that HT had positive effects on the participants’ immune systems. Those who received HT had more young, healthy immune cells and fewer worn-out immune cells compared to the control group. They also had lower levels of a substance in the blood linked to inflammation. These changes suggest that HT may help counteract some of the negative effects of aging on the immune system, potentially improving older adults’ overall health.

Link

Wong, G.C.L., Ng, T.K.S., Lee, J.L. et al. (2021). Horticultural therapy reduces biomarkers of immunosenescence and inflammaging in community-dwelling older adults: A feasibility pilot randomized controlled trial. The Journals of Gerontology: Series A, 76(2), 307-317.

Other Recommended Research

“Connecting people and the earth”: the occupational experience of people with different capabilities participating in an inclusive horticultural social enterprise

This thesis examines how a gardening-based social enterprise helps people of all abilities by providing meaningful work, social connections, and a sense of belonging. While it highlights the benefits of inclusion and community participation, it also points out challenges like funding and governance that need to be addressed for long-term success.

‘The nourishing soil of the soul’: The role of horticultural therapy in promoting well-being in community-dwelling people with dementia

Gardening can help people with dementia feel more active, connected, and less lonely by improving their physical and mental well-being. The article highlights the need for more accessible gardening programs in the community to support social engagement and a better quality of life.

‘Into the Wild’: A meta-synthesis of talking therapy in natural outdoor spaces

This Meta-synthesis highlights the benefits of holding therapy sessions in nature, which can reduce stress, improve mood, and enhance emotional well-being. While outdoor therapy offers unique advantages, such as greater openness and connection with nature, it also requires careful consideration of client suitability and professional training.