{"doi":"10.1002/oby.22738","title":"Physical Activity and Adiposity in a Racially Diverse Cohort of US Infants","abstract":"OBJECTIVE: Early life physical activity may help prevent obesity, but objective quantification in infants is challenging. METHODS: A total of 506 infants were examined from 2013 to 2016. Infants wore accelerometers for 4 days at ages 3, 6, 9, and 12 months. Daily log-transformed physical activity counts were computed, averaged, and standardized across assessments. A linear mixed model was used to examine trends in standardized physical activity counts as well as associations between physical activity and BMI z score, sum of subscapular and triceps skinfold thickness for overall adiposity (SS+TR), and their ratio for central adiposity (SS:TR). RESULTS: Among infants, 66% were black and 50% were female. For each additional visit, standardized physical activity counts increased by 0.23 (CI: 0.18 to 0.27; P < 0.0001). This translates to 126.3 unadjusted physical activity counts or a 4% increase for each visit beyond 3 months. In addition, a 1-SD increase in standardized physical activity counts (550 unadjusted physical activity counts) was associated with a 0.01-mm lower SS:TR (95% CI: -0.02 to -0.001; P = 0.03). However, standardized physical activity counts were not associated with BMI z score or SS+TR. CONCLUSIONS: Physical activity increased over infancy and was associated with central adiposity. Despite limitations, researchers should consider objective measurement in infants.","journal":"Obesity","year":2020,"id":77132,"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":19,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.8348,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":402037,"name":"Jiawei Bai","orcid":"0000-0003-4021-0101","position":1,"is_corresponding":false},{"id":258282,"name":"Truls Østbye","orcid":"0000-0002-0662-7440","position":2,"is_corresponding":false},{"id":268687,"name":"Brian Neelon","orcid":"0000-0002-8929-6033","position":3,"is_corresponding":false},{"id":58377,"name":"Russell R. Pate","orcid":"0000-0001-6373-9337","position":4,"is_corresponding":false},{"id":249466,"name":"Ciprian M. Crainiceanu","orcid":"0000-0001-6601-3881","position":5,"is_corresponding":false},{"id":258280,"name":"Sara E. Benjamin‐Neelon","orcid":"0000-0003-4643-2397","position":0,"is_corresponding":true}],"reference_count":46,"raw_metadata":null,"created_at":"2026-07-18T21:48:50.085103Z","pmid":"31944621","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":[]}