The concept of "Park Vitality Area" signifies a new phase of urban park development in China and represents a new practical paradigm promoting parks as "landscape catalyst." With a review of the relevant theoretical context and international background, this article proposes dual-dimensional connotations for Park Vitality Area from both a broad sense (sustainable perspective) and a narrow sense (recreational perspective). In response to current practical demands in China, this article focuses on the narrow sense using Beijing as an example to demonstrate its spatial characteristics and three-tiered implementation pathways: enhancing internal vitality, linking internal and external vitality, and cultivating virtual vitality communities of parks. Functionally, the Park Vitality Area promotes innovative transformation of parks from single-type land use into spatial catalyst-driven sustainable development in surrounding areas. Spatially, the fragmented, pointbased configuration of parks is reconceptualized as a composite "point–line–plane" system. The conceptualization of Park Vitality Area can propel research and practice of urban parks into a new stage of systematic development. The future research can encompass a series of issues in the umbrella of Park Vitality Area, including its internal structural characteristics, the spatial extent of radiative influence, mechanisms of spatial interconnectivity, multidimensional driving factors, and spatiotemporal evolution patterns. As an innovative pathway for parks to engage in urban renewal and governance, Park Vitality Area underscores the disciplinary value and professional contribution of planning and design within the broader agenda of building a beautiful China. Moreover, it offers a practical paradigm and a Chinese solution for the sustainable development of global cities.

In high-density cities that lack public outdoor fitness facilities, engaging in physical activities such as jogging, walking, and cycling in linear spaces like streets has increasingly become a significant option for individuals. In recent years, a substantial body of research has emerged globally examining the associations between the built environment and physical activity behaviors, yet there is a lack of research that systematically compares preferences for environmental factors to different linear physical activity spaces and explores collaborative design approaches within cities. This study, based on a quantitative review of 103 articles, examines the mechanism between 15 environmental factors and three types of activities—jogging, walking, and cycling—at both macro and micro scales. It quantitatively assesses the synergy and divergence in the directionality of environmental factors on different activities through K-means cluster analysis. Based on the collaborative or differentiated manifestations of various environmental factors across different linear physical activities, this study identifies seven general synergistic factors and eight differentiated synergistic factors, and proposes five spatial design models. It summarizes key differentiated factors and their applicability to urban environments, providing theoretical support and practical application evidence for constructing urban health-supportive environments.