Table 4.

Priority Rankings of Topics Requiring Further Research

Research topic	Very high/high, n (%)
A. Efficacy and effectiveness
PA impact on cognitive health outcomes	87 (82.9)
Impact of PA interventions that use a multiple risk factor approach	78 (77.2)
Comparative cost-effectiveness of specific programs	77 (74.8)
PA impact on mental health outcomes	74 (71.2)
Best methods for effective retention	68 (64.8)
PA impact on physical health outcomes	69 (65.1)
Best methods for effective recruitment	46 (43.8)
B. Translation and diffusion
Elements needed to sustain engagement of older adults in EB PA programs	82 (84.3)
Adapting EB PA programs for populations with different needs	68 (70.1)
Facilitators of EB program adoption at organizational level	66 (68.0)
Extent to which program components are maintained	60 (64.5)
Identifying and engaging stakeholders for program maintenance	85 (60.4)
Role of formal partnership/collaboration on EB programs	57 (58.8)
Identifying critical components of EB PA programs for adopters	56 (58.3)
Type/level of monitoring needed to maintain fidelity	56 (57.7)
Enrolling representative populations of older adults in EB programs	54 (55.7)
Enrolling large numbers of older adults in EB programs	52 (53.6)
Type/level of training needed to implement specific EB PA programs	47 (48.5)
Impact of multiple vs. single delivery channels	42 (44.7)
C. Supply and demand
Correspondence between demand and programs offered	35 (38.9)
Adequacy of number of PA program supply	20 (21.1)
D. Environmental issues
Impact of policies to promote PA	73 (76.8)
Impact of physical/built environment on PA	68 (71.6)

Note: EB = evidence-based; PA = physical activity.