{"doi":"10.1123/jpah.2021-0179","title":"Surveillance of Physical Activity and Sedentary Behavior Among Youth and Adults in the United States: History and Opportunities","abstract":"BACKGROUND: Surveillance is a core function of public health, and approaches to national surveillance of physical activity and sedentary behavior have evolved over the past 2 decades. The purpose of this paper is to provide an overview of surveillance of physical activity and sedentary behavior in the United States over the past 2 decades, along with related challenges and emerging opportunities. METHODS: The authors reviewed key national surveillance systems for the assessment of physical activity and sedentary behavior among youth and adults in the United States between 2000 and 2019. RESULTS: Over the past 20 years, 8 surveillance systems have assessed physical activity, and 5 of those have assessed sedentary behavior. Three of the 8 originated in nonpublic health agencies. Most systems have assessed physical activity and sedentary behavior via surveys. However, survey questions varied over time within and also across systems, resulting in a wide array of available data. CONCLUSION: The evolving nature of physical activity surveillance in the United States has resulted in both broad challenges (eg, balancing content with survey space; providing data at the national, state, and local level; adapting traditional physical activity measures and survey designs; and addressing variation across surveillance systems) and related opportunities.","journal":"Journal of Physical Activity and Health","year":2021,"id":166375,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":34,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9373,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2021-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":294864,"name":"Geoffrey P. Whitfield","orcid":"0000-0002-3991-8690","position":1,"is_corresponding":false},{"id":691939,"name":"Tiffany J. Chen","orcid":"0000-0002-2326-0986","position":2,"is_corresponding":false},{"id":231462,"name":"Eric T. Hyde","orcid":"0000-0002-5896-0894","position":3,"is_corresponding":false},{"id":682439,"name":"Emily N. Ussery","orcid":"0000-0003-1930-6838","position":4,"is_corresponding":false},{"id":296676,"name":"Kathleen B. Watson","orcid":null,"position":5,"is_corresponding":false},{"id":16810,"name":"Susan A. Carlson","orcid":"0000-0002-8534-5408","position":6,"is_corresponding":false},{"id":231466,"name":"John D. Omura","orcid":"0000-0003-3400-8804","position":0,"is_corresponding":true}],"reference_count":83,"raw_metadata":null,"created_at":"2026-07-18T23:45:49.644768Z","pmid":"34465651","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}