{"closest_prior_art":[{"name":"Polanco et al., Selection of Posture for Time-Trial Cycling Events","overlap":"Tests cyclists on their own bicycles in alternative aerobar-height configurations; directly measures saddle and aerobar contact pressure, vibration, power capacity, and aerodynamic drag; applies exposure thresholds; and selects or rejects a posture before a modeled 20-km time trial. This substantially overlaps the proposal's loaded preview, athlete-specific measurement, threshold trigger, and pre-commitment posture selection.","remaining_difference":"It evaluates only two aerobar heights and does not combine ventilation, pedal-force asymmetry, physical joint-clearance gauges, repeated-measurement release criteria, immediate mechanical retesting, or prospective backtesting against observed long-duration posture breaks and symptoms.","source_ids":["SRC1"]},{"name":"Skovereng, The effect of time trial position on physiological variables in elite cycling","overlap":"Uses short five-minute trainer bouts in high, low, and upright time-trial positions and finds the lowest position increased oxygen consumption and blood lactate while reducing gross efficiency, demonstrating that short loaded bouts can distinguish configuration-specific physiological costs.","remaining_difference":"It is a three-rider pilot comparison, not an operational multisensor fit protocol with pressure or force measurements, threshold-driven mechanical correction, a release gate, or validation against subsequent long-duration tolerance.","source_ids":["SRC2"]},{"name":"Velometrik modular bike-fitting systems","overlap":"Commercializes real-time saddle-pressure measurement during riding and combines it with motion analysis to provide objective data for changing riding position and saddle choice, showing that instrument-guided pre-finalization fitting is already a product practice.","remaining_difference":"The described system does not integrate respiratory measurement, pedal-force asymmetry, forearm pressure, clearance gauges, athlete-specific release thresholds, or a forecast-error backtest against long-duration outcomes.","source_ids":["SRC3"]},{"name":"UCI time-trial equipment and position regulations","overlap":"Establishes externally imposed limits for extension reach, pad-to-extension height, and forearm-support inclination, and explicitly links permitted configurations to stability and safety while maintaining an aerodynamic position.","remaining_difference":"The regulations constrain legal geometry but do not provide an athlete-specific physiological or interface-load preview, adjustment rule, or predictive validation protocol.","source_ids":["SRC4"]}],"contrastive_claim_falsifier":"In a preregistered repeated-measures crossover, the combined short-preview rule is falsified if it does not predict long-hold posture-break time, symptoms, or sustained power better than visual fitting and a pressure/power-only protocol; if candidate configurations cannot be distinguished within preset repeatability bounds; or if the instruments materially change posture or contact loads.","contrastive_claim_remaining":"Compared with visual fitting and existing pressure/power posture-selection methods, a repeatable short loaded preview that jointly measures saddle and forearm pressure, ventilation, pedal-force asymmetry, and physical clearance—and uses those measurements as a mechanical release gate—will more accurately predict configuration-specific long-duration posture failure, with predictive thresholds improved through prospective backtesting.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"The bounded search covered the direct intervention, older physiological terminology, commercial fitting systems, official equipment constraints, and combinations of pressure, power, ventilation, force, and posture. Four opened sources span four publishers and include primary research, first-party product evidence, and official guidance.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"Short controlled position bouts and measured configuration changes are feasible in prior studies. A crossover comparing the proposed combined rule with visual fitting and the closest pressure/power method, followed by manufacturer-compliant long holds, is bounded and supplies explicit predictive and repeatability endpoints.","source_ids":["SRC1","SRC2"],"status":"PASS"},"distinct_testable_claim":{"rationale":"Although the core preview-and-threshold concept substantially collides with SRC1, the incremental claim concerning a jointly measured multisensor release gate and prospective prediction of long-duration failure remains operationally distinguishable and falsifiable.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"The proposed first test is low intensity, reversible, symptom-gated, and preserves athlete, mechanic, coach, clinician, manufacturer, and competition authority. Prior research used consent and ethics oversight, while UCI rules confirm that candidate geometry must remain within external equipment limits.","source_ids":["SRC1","SRC4"],"status":"PASS"},"supported_problem":{"rationale":"Primary research shows that more aggressive time-trial postures can worsen contact pressure, power capacity, oxygen cost, lactate, and efficiency, and commercial systems already measure loaded pressure to guide fit decisions. The stronger assertion that ordinary fitting generally fails to detect these issues before finalization is not established by the retained sources.","source_ids":["SRC1","SRC2","SRC3"],"status":"PASS"}},"prior_art_disposition":"SUBSTANTIAL_COLLISION","problem_evidence":{"finding":"The posture-dependent trade-off among aerodynamics, power, physiological cost, and contact pressure is visible and directly measured. Evidence only partly supports the proposal's full problem framing because instrumented pre-finalization fitting already exists and the sources do not quantify how often baseline fitting misses consequential failures.","source_ids":["SRC1","SRC2","SRC3"],"status":"PARTLY_SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P051","screen_survival":false,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["bike fit pressure mapping pedal force ventilation joint clearance protocol","aerodynamic cycling position comfort pressure oxygen uptake power time trial study"],"source_ids":["SRC1","SRC2","SRC3"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["time trial bike fit pressure mapping respiratory measurement pedal force asymmetry sustainable position","\"Selection of Posture for Time-Trial Cycling Events\" pdf"],"source_ids":["SRC1","SRC2"]},"products_practices_and_standards":{"no_result_note":null,"queries":["official bike fitting pressure mapping system saddle forearm pressure cycling product","UCI time trial bike position equipment regulations handlebar extensions saddle 2026"],"source_ids":["SRC3","SRC4"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["The effect of aerodynamic handlebars on oxygen consumption while cycling at a constant speed","cycle aero position oxygen cost low time trial posture"],"source_ids":["SRC1","SRC2"]}},"sources":[{"claims_supported":["A loaded, instrumented comparison of time-trial postures using pressure, vibration, power capacity, and drag was implemented on cyclists' own bicycles.","Exposure thresholds were used to reject infeasible postures and alter selection away from the nominally fastest posture.","Lower aerobar height increased saddle pressure and reduced power capacity in the tested cyclists."],"publisher":"University of Padova Research Archive / Applied Sciences","source_id":"SRC1","source_type":"PRIMARY_RESEARCH","title":"Selection of Posture for Time-Trial Cycling Events","url":"https://www.research.unipd.it/retrieve/e14fb26d-74d8-3de1-e053-1705fe0ac030/applsci-10-06546.pdf"},{"claims_supported":["Five-minute loaded bouts can distinguish physiological responses among time-trial positions.","The lowest tested position increased oxygen consumption and blood lactate and reduced gross efficiency relative to the higher time-trial position."],"publisher":"Journal of Science and Cycling","source_id":"SRC2","source_type":"PRIMARY_RESEARCH","title":"The effect of time trial position on physiological variables in elite cycling","url":"https://www.jsc-journal.com/index.php/JSC/article/view/468"},{"claims_supported":["Real-time saddle-pressure measurement during riding is commercially offered for bike fitting.","Pressure and motion analysis can be combined to provide objective data for position and saddle optimization."],"publisher":"Velometrik GmbH","source_id":"SRC3","source_type":"FIRST_PARTY_PRODUCT","title":"Bike Fitting Systems | Saddle Pressure Mapping, Pressure Sensors","url":"https://www.velometrik.com/en"},{"claims_supported":["UCI time-trial rules impose rider-height-dependent extension and pad-height limits.","Forearm-support inclination and other position dimensions are constrained for stability, safety, and aerodynamic positioning."],"publisher":"Union Cycliste Internationale","source_id":"SRC4","source_type":"OFFICIAL_GUIDANCE","title":"UCI Regulations for road cycling: changes for time trials","url":"https://www.uci.org/pressrelease/uci-regulations-for-road-cycling-changes-for-time-trials/1QmN4gRxrsgeQtgahAAfXr"}],"world_novelty_boundary":"This bounded four-source public-web screen found a substantial conceptual collision for instrumented, threshold-constrained pre-race time-trial posture selection. It did not locate the proposal's exact full multisensor, repeatability-gated, prospectively backtested combination, but that absence cannot establish world novelty, patentability, market size, expert acceptance, or realized value."}