Notes on Participatory Health Research: USA and Brazil — 45 Years after Freire
Introduction and key concepts
The article analyzes participatory health research through a dialogue between the United States (USA) and Brazil, two countries emblematic of different historical traditions in community participation in science. It aims to illuminate similarities and differences in political and scientific contexts, funding, and academic perspectives while highlighting shared values and methodologies that democratize knowledge construction and address health inequities.
Core ideas and terminologies
Community-based participatory research (CBPR); participatory health research; participatory action research; participatory research; action research; pesquisa-ação (Portuguese).
Freirean dialogical methods: listening, dialogue, action, and reflection cycle; used as a foundation for research-action and social mobilization.
Knowledge democracy: recognition of expertise from practice and communities, beyond academia, as essential to research impact.
Freire’s conscientização (conscientização): critical awareness and transformative action through participatory dialogue.
Emphasis on co-learning, power-sharing, social justice, and reduction of health inequities.
Historical traditions and origins
Northern tradition (largely U.S. and Europe): rooted in Kurt Lewin’s action research, with a positivist scientific emphasis historically dominating the mainstream research enterprise.
Southern tradition (Latin America, Asia, Africa): rooted in emancipatory, liberation-based education (Paulo Freire), linking academia with social movements and popular education for health.
Contemporary convergence: increasing global legitimacy for participatory research through networks such as icphr (International Collaborative on Participatory Health Research) and the Collaborative Action Research Network (CARL).
Goals of participatory health research
Democratic co-creation of knowledge with communities.
Social mobilization, community empowerment, and transformation of inequitable social conditions.
Knowledge democracy: valuing practical knowledge from lived experience alongside academic knowledge.
Case studies and approach
Three mini-cases (one from the USA, two from Brazil) illustrate multi-level participatory processes using Freirian dialogue and participatory tools.
Aim to generalize learning about participatory research processes while acknowledging country-specific contexts and policies.
Contexts for knowledge democracy
Emergence of a global community of CBPR and participatory action researchers, with evolving methods, ethics, and evaluation paradigms.
The paper emphasizes the importance of maintaining integrity of community participation amid political and funding pressures.
United States context
Broad overview
The USA emerged as a democracy with equal-opportunity ideals but with historical inequities (slavery, Native American genocide, wealth concentration).
The U.S. developed strong scientific institutions, notably the National Institutes of Health (NIH), which funds biomedical and clinical research but historically privileged elite, university-based work.
NIH and the funding landscape
NIH budget (2016): USD for biomedical research, predominantly laboratory and clinical focus.
Heckler Report (1985): highlighted health disparities in Black and minority populations, catalyzing attention to community-engaged research.
Emergence of CBPR in the 1990s arising from a history of “maximum feasible participation” within the War on Poverty and CDC participatory programs, with a Freirean influence (Southern tradition).
Early environmental justice CBPR funded in 1995 by NIH agencies; later, broader NIH support through various Institutes (e.g., IHS, NIEHS) for community-engaged approaches.
CTSA (Clinical and Translational Science Awards) launched in 2006 to accelerate translational research and recruit minorities into trials; increased engagement funding from NIH and other funders.
PCORI (Patient-Centered Outcomes Research Institute) funding emphasizes patient and stakeholder involvement in research design and dissemination.
Tensions and debates within the U.S. system
Tension between a dominant, traditional positivist paradigm and a growing CBPR model that emphasizes equity and community co-ownership of knowledge.
Trickett's dichotomy: utilitarian (instrumental) use of community engagement vs. broad capacity-building and democratic knowledge creation.
Risks of co-optation: engagement efforts can slide into unidirectional outreach if not carefully designed to preserve shared power.
Internal vs. external validity discourse: mainstream science prioritizes internal validity (randomized controlled trials) while implementation science and mixed-methods approaches stress external validity and context-driven adaptation.
Characteristics of U.S. CBPR practice
Increasing use of mixed methods and qualitative/hermeneutic understandings to capture community meanings and well-being.
A growing cadre of practitioners, with a focus on social justice and health equity, particularly among communities of color and marginalized groups.
Despite institutional support, political contexts (e.g., shifting federal priorities) may threaten funding stability for CBPR partnerships.
Practical implications and ongoing developments
The Engage for Equity project (2015–2020) refines measures of reflexivity, shared power, and community-centered outcomes, and translates CBPR principles into scalable tools.
Translation and dissemination efforts extend CBPR concepts beyond the U.S. (Spanish/Portuguese adaptations), reflecting international adoption.
Implementation science and pragmatic trial designs are used to address calls for rigor while preserving community engagement and relevance.
Challenges and opportunities
Balancing scientific rigor with participatory, democratic values; ensuring equitable power dynamics in data ownership and knowledge use.
Sustaining long-term partnerships amid changing political, funding, and university priorities.
Brazil context
Historical and political backdrop
Colonial-era social structure with oligarchic power and exclusion of marginalized groups.
1920s onward: external foundations (largely U.S.) supported participatory health control and sanitation projects; 1960s expansion to broader health and environmental action.
1964 military coup disrupted democratic activism; Freire’s exile (to exile for 16 years) and publication of Pedagogia do Oprimido (1970 English; 1974 Portuguese) solidified Freirean influence on participatory education for health.
Post-dictatorship democratization in the 1980s, with a new constitution in 1988 establishing universal health access via SUS (Unified Health System) and community advisory councils.
Institutional and funding landscape
National agencies like CNPq and FAPESP funded participatory research currents and critical partnerships; growing recognition of participatory approaches in health promotion.
Policy moves supporting participation: 2001 National University Extension Plan; 2006 ANPPS (National Agenda of Health Research Priorities); 2011 FUNASA acknowledgment of participatory research for environmental health and health promotion.
Tensions with traditional publication standards: some Latin American scholars argue that international impact metrics undervalue socio-political and community-oriented research published in Brazilian journals.
Akerman and Coimbra emphasize needing genuine scientific and political will to incorporate experiential knowledge and to influence policy; caution against mere imitation of more established international models.
Freirean influence and methodological orientation
Freire’s emancipatory liberation approach (popular education for health) informs Brazilian participatory research; emphasis on affectivity, people’s knowledge, and co-construction of knowledge with communities.
Policy and political climate in the 21st century
Contemporary corruption scandals and political upheavals (including impeachment in 2016) raise concerns about democracy and equality, but health promotion scholars and practitioners maintain strong ties to social movements and civil society.
Ongoing commitment to maintaining links between academia and movements for women’s rights, labor rights, Indigenous rights, and social security.
Key structural points and debates
Brazilian discourse highlights the integration of social-political theory with social democratic practice; argues that international journal metrics do not fully capture the policy-impact value of Latin American scholarship.
There is a call for extending beyond traditional impact factors to assess meaningful societal impacts (e.g., policy influence, community empowerment).
Case-study implications for Brazil
The Brazilian cases illustrate a politicized, participatory stance in which researchers explicitly address inequalities, empower social actors, and aim for social mobilization and democratic governance—even when policy change is slow or partial.
Case studies and research-in-action
4.1 Healthy Native Community Fellowship (HNCF), United States
Context and rationale
Tribal participatory research recognizes the sovereignty of Native nations and the right to own research on traditional lands after historical exploitation.
AI/AN communities face high poverty and unemployment, but benefit from cultural cohesion, language, and community leadership.
Program structure and methods
Initiated in 2005 as a leadership and empowerment program within the Indian Health Service framework; multi-sector teams (2–3 people) drawn from health, education, senior services, environment, police, and tribal leadership.
Year-long process with three weekly retreats and ongoing web-based interactions; technical assistance to identify health issues, develop wellness plans, address policy, and strengthen culture and language.
Scale and outcomes
By the time of the paper: 311 fellows and 125 teams trained; populations served include both on-reservation and urban AI/AN communities (urban AI/AN population >70% of total).
Four directions Medicine Wheel used to frame wellness and knowledge domains; Freirian listening/dialogue/action/reflection cycle used to engage fellows as community researchers of their own issues.
Participatory evaluation and research process co-developed with UNM-CPR and other consultants; data collection via qualitative and quantitative instruments co-created by fellows and staff.
Three-pronged evaluation framework:
1) Individual transformation (self-efficacy, empowerment)
2) Team cohesion and effectiveness
3) Community outcomes (cultural connectedness, wellness events, health-enhancing policies)
Examples and impacts
Case example: a southwestern tribe used the fellowship to address obesity and diabetes through a dual approach:
Cultivating Wellness: promoted traditional farming and nutrition education; combined dry-land and irrigated gardens with family cooking and education.
Policy dimension: advocated to sustain 16 varieties of heirloom corn as a staple, engaging tribal leadership and non-profits to address seed sovereignty and food justice.
The UNM-CPR collaboration supported ongoing evaluation, data feedback loops, and program improvements; challenges include geographic dispersion and variable local resources.
Key takeaway
HNCF demonstrates how Freirian dialogue, capacity-building, and mixed-methods evaluation can transform health promotion in tribal communities without relying on randomized controlled trials, while aligning with federal funding pathways and community self-determination.
4.2 Amazonia, Brazil (Iauaretê, Amazonas)
Context and goals
Indigenous community of 2,700 in the Amazon; rapid urbanization; research funded by FUNASA but conducted with Freirian participatory approaches to honor pluricultural health understandings.
Objective: strengthen social mobilization and community involvement to improve water sanitation and health outcomes.
Fieldwork and methods (2004–2009)
Seven field campaigns; average field campaign duration around 15 days (with four days of travel each way).
Key challenges: remoteness (remote forest location, 1,200 km from Manaus; >4,000 km from USP in São Paulo); limited infrastructure; low public investment; cultural beliefs and health concepts varied across communities.
Dialogical participatory tools used:
Talking maps (graphic representations of residents’ life and environmental/health characteristics) developed in 10 villages across two rounds.
Photovoice; community newspaper; other participatory means to produce feedback loops.
Non-dialogical methods and integration
Complemented with surveys of intestinal parasites and water quality analyses; dialogical tools provided a structure for feedback and social engagement.
The aim was to harmonize popular knowledge with scientific data to produce culturally contextualized solutions.
Theoretical framing and outcomes
Santos’ ecology of knowledges (Santos, 2007) with Freirean co-construction of knowledge through cyclical dialogue and action.
Institutional challenge: engagement of government managers was difficult due to remoteness and policy-resource gaps; however, social mobilization and empowerment strengthened community autonomy.
Outcomes included improved empowerment, social mobilization, and closer researcher-community relationships; yet benefits distribution raised concerns about equity (Flicker’s emphasis on fair distribution of benefits).
Key takeaway
The Amazonia case shows how dialogical, participatory methods can generate context-sensitive solutions despite structural constraints, while foregrounding respect for indigenous knowledge and advocating for democratic governance in health and water/sanitation reform.
4.3 São Paulo, Brazil (Capela do Socorro)
Context and goals
Capela do Socorro, a sub-municipality in the southern region of São Paulo, with about 596,000 residents; characterized by youth, poverty, violence, and lower literacy.
Objective: promote integrated and participatory public management to address urban health and environmental injustices; partnership between USP and the sub-municipality; funded by FAPESP.
Methodology and phases
Phase 1: Systematization of Experience (sistematização de experiências) to critically reflect on practices and strengthen insights about integrating participatory management to improve quality of life.
Phase 2: Leadership mapping to analyze alliances, networks, and power relations; identify and map actors (groups, movements, organizations) operating in the study area and their connections to public managers.
Both phases combined with territory analysis to enable integrated, participatory management assessment.
Findings and implications
Highlighted the importance of decentralization and local autonomy for sustainability of participatory management; emphasized dialogue with community actors to set priorities and translate them into actions.
Challenges identified included limited resources and gaps in knowledge among social actors at different levels; required extensive dialogue and education by USP faculty to clarify the purpose and potential of participatory management.
The urban scale of São Paulo required attention to intersectoral collaboration and complex governance structures to enable genuine participation at the sub-municipality level.
Key takeaway
The Capela do Socorro case demonstrates how systematization and leadership mapping can be used to build participatory governance in a large city, while revealing practical barriers (resources, capacity) to sustaining participatory approaches in urban settings.
Discussion and conclusions
5.1 Brazil: context, funding, and academic agendas
Brazilian cases illustrate the ongoing relevance of Ottawa Charter-inspired community mobilization in health promotion research, even as funding remains uneven for participatory processes.
Participatory research tends to be more readily accepted when paired with educational interventions targeting socially isolated or vulnerable groups or when connected to social justice goals.
Funding agencies increasingly support interdisciplinary work that brings local knowledge into research design and execution; FUNASA support for participatory research in indigenous water/sanitation work exemplifies this tendency.
Freirean participatory dialogue and co-construction of knowledge are central across Brazilian projects, with researchers aiming to empower social actors and use research to challenge oppressive structures and inform policy—though policy impact can be slow or partial.
Critical debates around scientific independence and impact metrics persist; there is a call to broaden assessment beyond traditional impact factors to capture social and political impacts of participatory research.
5.2 United States: context, funding, and academic agendas
The U.S. CBPR projects span urban and rural contexts, integrating Freirian dialogue with mixed-methods evaluation and community-led priority setting.
Partnerships between universities (e.g., UNM) and community entities (e.g., HNCF) leverage long-term, culturally embedded processes that respect indigenous knowledge and promote wellness through community action and policy engagement.
NIH funding supports CBPR through diverse mechanisms, but there remains a tension between politicized, equity-driven aims and more traditional biomedical research priorities.
Implementation science and pragmatic trial designs are increasingly used to balance rigor with real-world applicability and community relevance.
The Engage for Equity program and related NIH efforts emphasize reflexivity, shared power, and culturally centered interventions, with translations into Spanish/Portuguese to broaden global relevance.
5.3 Commonalities and implications for a global knowledge democracy
Shared principles across USA and Brazil
Commitment to social justice, empowerment, and reduction of health inequities through participatory processes.
Freirian dialogical methodologies underpin both CBPR and pesquisa-ação (“participatory action research”), enabling co-construction of knowledge with communities.
Acknowledge and value knowledge from communities, including indigenous and local experiences, as equal to academic knowledge in shaping interventions and policies.
Embrace mixed-methods approaches, reflexivity, and contextual adaptation to address diverse health determinants and social contexts.
Methodological convergence
Openness to integrating qualitative and quantitative inquiry; reflexive critique of power dynamics; democratic governance of data, findings, and dissemination.
Use of participatory tools (e.g., talking maps, photovoice, community forums) and Freirean cycles to sustain engagement across time and geographies.
Policy and practice implications
The shared agenda is to move toward knowledge democracy where community voice informs research priorities, design, implementation, and translation into policy and practice.
Global networks and collaborations (icphr, CARN, etc.) support the cross-pollination of methods, ethics, and evaluation frameworks.
The ultimate aim is durable community empowerment and policy change to reduce health and social inequities, while ensuring ethical, respectful, and reciprocal partnerships between researchers and communities.
Highlights and takeaways
Freirean dialogue and the four-stage learning cycle (listening → dialogue → action → reflection) provide a practical framework for participatory research across cultural contexts.
Although funding mechanisms and political contexts differ, both the USA and Brazil show a convergence toward participatory approaches that foreground community power, social justice, and knowledge democracy.
The three case studies illustrate concrete paths by which participatory research can operate in diverse settings: Native American tribal health (HNCF), Amazonian indigenous health and water/sanitation (Iauaretê), and urban public management in a large Brazilian city (Capela do Socorro).
The field continues to evolve toward integrated evaluation frameworks that capture process, outcomes, and community empowerment, while remaining vigilant about potential co-optation and inequitable distributions of benefits.
Key numerical and factual references (selected)
Ottawa Charter launched 1986; Alma-Ata Declaration (1978) cited as foundational for health-for-all and community mobilization.
NIH budget example: USD in 2016 for biomedical research.
CBPR evolution in the U.S. context since the 1990s; CTSA launched in 2006; PCORI involvement in patient-centered research.
HNCF (Healthy Native Communities Fellowship) scale: 311 Fellows; 125 teams; Indigenous populations with a large urban component; Navajo Nation population approaching 200,000.
Amazonia Iauaretê: seven field campaigns (2004–2009); field-work logistics included 12–15 day campaigns with substantial travel and remoteness.
Capela do Socorro, São Paulo: Capela is the largest sub-municipality in the city with about 596,000 people; focus on systematization of experience and leadership mapping to strengthen participatory governance.
Freirean theoretical anchors cited in multiple references (including Pedagogia do Oprimido, 1970/1974; lifelong cycles of dialogue and action) and in discussions of knowledge democracy and social movements.
Appendix: Terms to know
CBPR: Community-Based Participatory Research
CEnR: Community-Engaged Research
pesquisa-ação: research-action (Portuguese)
Freirean dialogue: listening, dialogue, action, reflection cycle
Knowledge democracy: integration of practice-based expertise with academic inquiry
Ottawa Charter: foundational document for health promotion emphasizing community participation
SUS: Sistema Único de Saúde (Brazil’s Unified Health System)
FUNASA: Brazilian National Health Foundation (environmental health and health promotion funding)
CTSA: Clinical and Translational Science Awards
Engage for Equity: NIH initiative to measure and improve equity-focused CBPR practices