{"id":"W4391530992","doi":"10.2196/51399","title":"Physical Activity, Heart Rate Variability, and Ventricular Arrhythmia During the COVID-19 Lockdown: Retrospective Cohort Study","year":2024,"lang":"en","type":"article","venue":"JMIR Cardio","topic":"Heart Rate Variability and Autonomic Control","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto; Hamilton Health Sciences; Impact; McMaster University; Population Health Research Institute; Sunnybrook Health Science Centre","funders":"","keywords":"Medicine; Heart rate variability; Coronavirus disease 2019 (COVID-19); Physical activity; Retrospective cohort study; Implantable cardioverter-defibrillator; Internal medicine; Cohort; Cardiology; Heart rate; Emergency medicine; Physical therapy; Blood pressure","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003936671,0.0003142363,0.0003902732,0.0007312072,0.0007452538,0.0006543669,0.0004844457,0.0003784437,0.001024866],"category_scores_gemma":[0.0009995117,0.0003463829,0.0004210231,0.001420343,0.0003642988,0.0004330474,0.0005754163,0.0005404585,0.000206921],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001200478,"about_ca_system_score_gemma":0.001118073,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.105536,"about_ca_topic_score_gemma":0.1534916,"domain_scores_codex":[0.9994857,0.00004685661,0.00005496727,0.0001334587,0.0001394557,0.0001396485],"domain_scores_gemma":[0.9989819,0.00007271795,0.0004752171,0.00009729002,0.0001410286,0.0002319444],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00004391166,0.000009542199,0.9996123,0.000003493573,0.00001627183,0.00002764078,0.00003507727,0.000005717995,0.00004873547,0.000002242225,0.00003827411,0.0001568733],"study_design_scores_gemma":[0.000002866638,0.00003435116,0.9996821,0.000003620861,0.000009132078,0.00005745137,0.0000982098,0.00002450003,0.000009484635,0.000001925712,0.00007485229,0.000001667526],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9985144,0.0001762154,0.0000476596,0.00001845454,0.000004976385,0.00002392543,0.0009013308,0.000001941233,0.0003110856],"genre_scores_gemma":[0.9985781,0.0001159134,0.0000408946,0.00002813861,0.000008239696,0.00002329765,0.001059406,0.000001602887,0.0001445429],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.105536,"threshold_uncertainty_score":0.2098435,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01171298492476436,"score_gpt":0.2962685515560886,"score_spread":0.2845555666313243,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}