{"id":"W2116899812","doi":"10.1518/001872006776412243","title":"Stability Ball Versus Office Chair: Comparison of Muscle Activation and Lumbar Spine Posture During Prolonged Sitting","year":2006,"lang":"en","type":"article","venue":"Human Factors The Journal of the Human Factors and Ergonomics Society","topic":"Musculoskeletal pain and rehabilitation","field":"Medicine","cited_by":135,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Waterloo","funders":"Canada Research Chairs","keywords":"Sitting; Lumbar; Trunk; Lumbar spine; Low back pain; Physical therapy; Ball (mathematics); Physical medicine and rehabilitation; Medicine; Back pain; Biomechanics; Office workers; Surgery; Anatomy; Engineering; Mathematics; Operations management","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006988039,0.000226537,0.0004746373,0.00004163036,0.0006743796,0.00003318106,0.0001587784,0.000147396,0.00001725874],"category_scores_gemma":[0.000101543,0.0001252281,0.0003756461,0.000089354,0.0003429729,0.0001650765,0.0000954714,0.0005549168,9.695688e-8],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000189076,"about_ca_system_score_gemma":0.00003943234,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001649212,"about_ca_topic_score_gemma":0.00009504614,"domain_scores_codex":[0.9985259,0.0001564029,0.0006893896,0.0001665674,0.0002607292,0.0002010636],"domain_scores_gemma":[0.9984755,0.0001832766,0.0008390649,0.0002620051,0.0001583781,0.00008179463],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.0002412485,0.0002482713,0.4887686,0.0004501257,0.0001679997,6.021724e-8,0.01185913,0.00008303671,0.4979549,0.00008167558,0.00009842184,0.00004651084],"study_design_scores_gemma":[0.001597081,0.0004439466,0.9761845,0.0001252231,0.0001504934,0.000001076882,0.00714378,0.00007479345,0.01407229,0.00005396412,0.00003245744,0.0001203799],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9990432,0.0002005183,0.00001504716,0.000143314,0.0001616914,0.0003771356,0.000005812302,0.00001366368,0.00003957165],"genre_scores_gemma":[0.9996423,0.00002921545,0.00006011489,0.00001629554,0.000180928,8.033467e-7,0.00001163544,0.00002079755,0.00003790106],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4874159,"threshold_uncertainty_score":0.518685,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02572805322401852,"score_gpt":0.2749168603706667,"score_spread":0.2491888071466482,"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."}}