From: Effectiveness of a healthcare-based mobile intervention on sedentary patterns, physical activity, mental well-being and clinical and productivity outcomes in office employees with type 2 diabetes: study protocol for a randomized controlled trial
Effect size (∆μ = d ∙ σ))
Power function
Small (d = 0.2)
(n = 1084, power 0.91)
Medium (d = 0.5)
(n = 176 power 0.91)
Large  (d = 0.5)
(n = 70 power 0.91)