{"id":"W2786737672","doi":"10.2196/mhealth.8503","title":"Patterns of Fitbit Use and Activity Levels Throughout a Physical Activity Intervention: Exploratory Analysis from a Randomized Controlled Trial","year":2018,"lang":"en","type":"article","venue":"JMIR mhealth and uhealth","topic":"Physical Activity and Health","field":"Medicine","cited_by":133,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Cancer Institute; National Institutes of Health","keywords":"Activity tracker; Physical activity; Activity monitor; Randomized controlled trial; Physical therapy; Medicine; Intervention (counseling); Actigraphy; BitTorrent tracker; Physical medicine and rehabilitation; Internal medicine","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":[0.001193662,0.0003320882,0.004170918,0.0002453024,0.0002487325,0.00004134686,0.00007251699,0.0001775786,0.00005526528],"category_scores_gemma":[0.0003637175,0.0002448575,0.0006729967,0.0003964593,0.0003608173,0.0004904044,0.00008244808,0.0005282495,0.000004167223],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001127813,"about_ca_system_score_gemma":0.000417584,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003421423,"about_ca_topic_score_gemma":0.0005620364,"domain_scores_codex":[0.9964704,0.001264996,0.0006571677,0.0006372238,0.0004591189,0.0005111021],"domain_scores_gemma":[0.9959971,0.001841468,0.000828568,0.0004363332,0.0001937832,0.0007027983],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"randomized_trial","study_design_gemma":"randomized_trial","study_design_scores_codex":[0.9760024,0.004750322,0.003454293,0.0009327616,0.001096853,0.000004005959,0.002908783,1.994179e-7,0.0002974761,0.0002532479,0.00003832913,0.01026134],"study_design_scores_gemma":[0.828106,0.003325853,0.1596976,0.000179457,0.003045668,0.000002147331,0.0001391497,0.004238531,0.0004721663,0.0005475931,0.00003886806,0.0002069751],"study_design_candidate":"randomized_trial","study_design_consensus":"randomized_trial","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9911992,0.0001111407,0.002713753,0.001730434,0.000173003,0.003742946,0.0002240113,0.00006055339,0.0000449447],"genre_scores_gemma":[0.9977357,0.0002834741,0.00009994986,0.0004727856,0.0009426757,0.0003602274,0.00002269124,0.00002226604,0.00006020235],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1562433,"threshold_uncertainty_score":0.9985,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1350130236919635,"score_gpt":0.4360198401573904,"score_spread":0.3010068164654268,"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."}}