{"id":"W2954715172","doi":"10.2196/14438","title":"Validity of the Polar M430 Activity Monitor in Free-Living Conditions: Validation Study","year":2019,"lang":"en","type":"article","venue":"JMIR Formative Research","topic":"Physical Activity and Health","field":"Medicine","cited_by":34,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Energy expenditure; Intraclass correlation; Activity tracker; Accelerometer; Physical activity; Physical therapy; Total energy expenditure; Limits of agreement; Heart rate monitor; Criterion validity; Statistics; Bland–Altman plot; Medicine; Physical medicine and rehabilitation; Psychology; Mathematics; Heart rate; Nuclear medicine; Computer science; Psychometrics","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001831062,0.00007983833,0.0002753676,0.0001878983,0.0001469046,0.00001524624,0.0001939639,0.00006346759,0.0001104431],"category_scores_gemma":[0.0003837898,0.00005581094,0.00006724997,0.0006983721,0.0001314473,0.0004410332,0.0002334355,0.000884663,0.00007976183],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000273309,"about_ca_system_score_gemma":0.0001938212,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0007306552,"about_ca_topic_score_gemma":0.00006758975,"domain_scores_codex":[0.9973957,0.001078452,0.0001969082,0.0001527684,0.0008652625,0.0003109166],"domain_scores_gemma":[0.9981692,0.0009714142,0.00008912879,0.000465265,0.0002291892,0.00007581314],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0004380369,0.01898099,0.9068506,0.001295188,0.00007728,0.000004373591,0.02806792,0.00001632026,0.03857713,0.001175552,0.001904235,0.002612329],"study_design_scores_gemma":[0.0009061428,0.001307631,0.974579,0.0003053381,0.000005325947,0.00000159486,0.002527978,0.0003922612,0.01832239,0.001543605,0.00005613337,0.00005260117],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9952156,0.000007342453,0.000008664879,0.001071541,0.0001018445,0.001819112,0.00004656005,0.00001258936,0.001716761],"genre_scores_gemma":[0.9995675,0.000006049241,0.00000635514,0.00001455378,0.00006268194,0.0001045439,0.000003335729,0.00000780561,0.0002271562],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06772836,"threshold_uncertainty_score":0.384347,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1428501990375547,"score_gpt":0.4798079864785412,"score_spread":0.3369577874409866,"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."}}