{"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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.005590057,0.000582441,0.0004281046,0.0005954409,0.0004647138,0.0005966556,0.0007109607,0.0006907689,0.001151347],"category_scores_gemma":[0.01211226,0.0003615826,0.0007593413,0.0004778641,0.0007041271,0.0005341748,0.001056188,0.0004204081,0.0006950682],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003518684,"about_ca_system_score_gemma":0.0006246158,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002917124,"about_ca_topic_score_gemma":0.00428964,"domain_scores_codex":[0.9967688,0.001326276,0.0002960378,0.0005393166,0.0009282026,0.0001413339],"domain_scores_gemma":[0.9926306,0.002381352,0.001450461,0.000760644,0.002411956,0.0003649826],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00133293,0.0007493813,0.98246,0.0001065917,0.0001637681,0.00005183147,0.0008579164,0.0002118536,0.001677909,0.00009013736,0.0002909275,0.0120068],"study_design_scores_gemma":[0.0001631262,0.002292268,0.9944614,0.00004383918,0.00007497107,0.0001420517,0.0002647283,0.001025052,0.000599823,0.00005008378,0.000872396,0.000010303],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.996375,0.0001000667,0.001642525,0.00002103573,0.00002053592,0.0003927177,0.0003671786,0.00001194793,0.001068853],"genre_scores_gemma":[0.995014,0.00008353325,0.002592097,0.00007371875,0.00002014809,0.0005827894,0.001212883,0.00001326514,0.0004075349],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.005590057,"threshold_uncertainty_score":0.02956337,"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."}}