{"id":"W3037734338","doi":"10.2196/18694","title":"Reliability and Validity of Commercially Available Wearable Devices for Measuring Steps, Energy Expenditure, and Heart Rate: Systematic Review","year":2020,"lang":"en","type":"review","venue":"JMIR mhealth and uhealth","topic":"Physical Activity and Health","field":"Medicine","cited_by":741,"is_retracted":false,"has_abstract":true,"ca_institutions":"Dalhousie University; Memorial University of Newfoundland","funders":"","keywords":"Wearable computer; Reliability (semiconductor); Criterion validity; Validity; Wearable technology; Operationalization; Computer science; Activity tracker; Construct validity; Energy expenditure; Population; Applied psychology; Reliability engineering; Medicine; Psychology; Engineering; Psychometrics; Clinical psychology; Environmental health; Embedded system","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"about_ca":false,"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":[0.01994028,0.001820307,0.008701495,0.01348488,0.0007648913,0.003764578,0.002606838,0.002300665,0.003353799],"category_scores_gemma":[0.1411855,0.001570613,0.009378784,0.01245458,0.001450841,0.003197554,0.002185019,0.001318729,0.0003936536],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.004069422,"about_ca_system_score_gemma":0.01348677,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01033088,"about_ca_topic_score_gemma":0.02447506,"domain_scores_codex":[0.9769678,0.007172722,0.00909063,0.001672109,0.00469788,0.000398782],"domain_scores_gemma":[0.8504291,0.1166094,0.02014332,0.00189243,0.01041095,0.0005148131],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"systematic_review","study_design_gemma":"systematic_review","study_design_scores_codex":[0.0001254249,0.0000116031,0.001826738,0.961936,0.00932534,0.00005029133,0.0002263732,0.00006734725,0.00007652928,0.0001203982,0.0009084941,0.02532551],"study_design_scores_gemma":[0.0001420093,0.0001245045,0.00659329,0.9219454,0.06294004,0.0002475845,0.0002956655,0.00008018337,0.0001662785,0.0001804711,0.007247384,0.00003713903],"study_design_candidate":"systematic_review","study_design_consensus":"systematic_review","genre_codex":"review","genre_gemma":"review","genre_scores_codex":[0.001517739,0.9968296,0.0002487601,0.0001998533,0.00009425917,0.0002817531,0.0005325951,0.00001049731,0.0002849509],"genre_scores_gemma":[0.03026227,0.9660391,0.001252493,0.000538895,0.0001074648,0.001071649,0.0005956737,0.00001399911,0.0001183992],"genre_candidate":"review","genre_consensus":"review","teacher_disagreement_score":0.01994028,"threshold_uncertainty_score":0.1054555,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2056519298097399,"score_gpt":0.4191574835142117,"score_spread":0.2135055537044718,"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."}}