Below are resources that I have found helpful.

The Cognitive Approach to Training Development: A Practitioner's Assessment(Silber, 1998)

Check out this link to "20 Exercisese to Do at Your Desk"Button Text

WHO Physical Inactivity, A Global Public Health Problem

Physical activity, stress reduction, and mood: insight into immunological mechanisms

Sedentary Time and Its Association With Risk for Disease Incidence, Mortality, and Hospitalization in Adults A Systematic Review and Meta-analysis

Exercise for Mental Health

How to reduce sitting time

Physical activity, stress reduction, and mood: insight into immunological mechanisms

The sedentary office: an expert statement on the growing case for change towards better health and productivity

instructional design models

instructional strategies list