{"doi":"10.1152/japplphysiol.00917.2024","title":"Cardiac responses to environmental heat exposure in young and older adults","abstract":"Comparing healthy young and older adults, we assessed left ventricular cardiac function (using echocardiography) during two separate 3-h extreme heat exposures in a very hot and dry or hot humid climate type. Although the augmentation of diastolic function and cardiac output were similar between age groups, older adults showed a greater increase in mitral annular systolic velocity with heat exposure, indicating a stronger reliance on systolic mechanisms to maintain stroke volume.","journal":"Journal of Applied Physiology","year":2025,"id":531634,"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":4,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9509,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2025-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1186066,"name":"Zachary J. McKenna","orcid":"0000-0003-2502-8870","position":1,"is_corresponding":false},{"id":421826,"name":"Satyam Sarma","orcid":"0000-0002-0628-4919","position":2,"is_corresponding":false},{"id":421827,"name":"James P. MacNamara","orcid":"0000-0003-2795-6021","position":3,"is_corresponding":false},{"id":1001703,"name":"Luke N. Belval","orcid":"0000-0003-0929-8061","position":4,"is_corresponding":false},{"id":499077,"name":"Joseph C. Watso","orcid":"0000-0001-7840-0643","position":5,"is_corresponding":false},{"id":1186065,"name":"Whitley C. Atkins","orcid":"0000-0003-1610-048X","position":6,"is_corresponding":false},{"id":1237494,"name":"Caitlin P. Jarrard","orcid":"0000-0002-6457-6805","position":7,"is_corresponding":false},{"id":319811,"name":"Craig G. Crandall","orcid":"0000-0001-7792-9713","position":8,"is_corresponding":false},{"id":1001315,"name":"Josh Foster","orcid":"0000-0001-6232-9336","position":0,"is_corresponding":true}],"reference_count":35,"raw_metadata":null,"created_at":"2026-07-19T02:51:14.579161Z","pmid":"40720198","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":[]}