Lassell, Rebecca K. F., authorWood, Wendy, advisorCross, Jennifer, committee memberSchmid, Arlene, committee memberStallones, Lorann, committee member2021-06-072021-06-072021https://hdl.handle.net/10217/232606People living with dementia are at risk for decreased quality of life (QoL). QoL may be supported through adaptive riding and horsemanship activities and adaptive gardening, two nature-based interventions; yet, they require further scientific advancement. This dissertation sought to scientifically advance adaptive riding and adaptive gardening for people with dementia. Study one, a mixed methods descriptive case study, addressed the development of an adaptive riding intervention and resulted in a logic model linking its purpose, assumptions, components, occupational opportunities, and immediate outcomes of QoL for participants with dementia. Study two, a quantitative case study compared adaptive riding and adaptive gardening, targeted development and piloting, and revealed that both supported participants' emotional well-being and participation, two dimensions of QoL, with significantly longer durations of complex participation observed during adaptive riding. Study one provided the first published logic model for a nature-based intervention involving animals, whereas study two served as the first nature comparison for this population. Both interventions were scientifically advanced from development to piloting and described in-depth to inform future replication. Next, care partners' perceptions should be explored. The novel observational approach applied in both studies may be helpful to describe other nature-based interventions, and may also contribute to occupational science with a method for situating occupations in the here and now.born digitaldoctoral dissertationsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.animal-assisted interventionsgreen spacesquality of lifeequine-assisted servicesAlzheimer's diseasehorticulture therapyText