Comparison of Two Park-Based Activities on Emotional Well-Being in Adults With Mobility Impairments

Inclusion Criteria: * (1) ages between 18 and 60 years * (2) non-progressive mobility impairment who use a manual wheelchair (e.g., SCI, transverse myelitis, amputation, spina bifida) * (3) able to propel a manual wheelchair outdoors on even terrain independently * (4) commit to complete the 5-week park visit program in both Fall and Spring seasons. Exclusion Criteria: * (1) bald or not willing to donate a hair sample * (2) weekly park visit to an urban park during the last 3 months * (3) weekly moderate intensity exercise regimen during the last 3 months * (4) having an endocrine disorder (that can affect cortisol levels * (5) taking oral corticosteroids * (6) receiving hormonal therapy * (7) unstable medical condition that prevents outdoor moderate intensity activity * (8) inadequate comprehension and verbal communication in English (i.e., inability to express basic needs, participate in measurement of outcomes, or provide consent to participate in the study) * (9) visual impairment that cannot be corrected using assistive devices