Group 1 - The core event of the "National Fitness Day" in Hangzhou emphasizes the integration of sports and health, aiming to promote a culture of fitness among citizens and support the city's goal of becoming an international sports city [6][11][12] - The event features a "100-day weight management campaign" that encourages citizens to form fitness groups, track their exercise data, and share healthy eating habits through an interactive platform [7][11] - The initiative includes a series of activities such as online challenges and community competitions, designed to sustain enthusiasm for fitness throughout the summer [7][12] Group 2 - The event incorporates scientific fitness guidance and health services, providing citizens with access to professional advice on exercise and recovery, thus ensuring a safe and effective fitness experience [8][9] - A creative health science market was set up to promote knowledge about weight management and healthy living, engaging citizens in both physical activities and educational opportunities [8][9] - The integration of traditional and modern fitness activities showcases a diverse range of options for participants, appealing to various age groups and fitness levels [10][11] Group 3 - The successful execution of this event reflects Hangzhou's commitment to making sports accessible to all, transforming fitness from a festive occasion into a daily habit [11][12] - The initiative is part of a broader strategy to enhance the city's sports infrastructure and services, including the establishment of a "10-minute fitness circle" to ensure that fitness resources are widely available [11][12][13] - The campaign not only promotes individual health but also fosters community engagement and social responsibility through initiatives like the public donation of exercise achievements [12][13]