{"id":"https://openalex.org/A5111108971","orcid":null,"observed_orcids":[],"display_name":"Koki Akai","raw_author_names":["Koki Akai"],"full_name":"Koki Akai","works_count":2,"cited_by_count":5,"summary_stats":{"2yr_mean_citedness":2.5,"h_index":1,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5111108971","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210124582","ror":"https://ror.org/02wcsw791","display_name":"Osaka Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210124582","https://openalex.org/I4210132540"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4210132540","ror":"https://ror.org/03q11y497","display_name":"Japan Community Healthcare Organization","country_code":"JP","type":"government","lineage":["https://openalex.org/I4210132540"]},"years":[2024]}],"last_known_institutions":[{"id":"https://openalex.org/I4210124582","ror":"https://ror.org/02wcsw791","display_name":"Osaka Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210124582","https://openalex.org/I4210132540"]},{"id":"https://openalex.org/I4210132540","ror":"https://ror.org/03q11y497","display_name":"Japan Community Healthcare Organization","country_code":"JP","type":"government","lineage":["https://openalex.org/I4210132540"]}],"topics":[{"id":"https://openalex.org/T10352","display_name":"Physical Activity and Health","count":2,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10071","display_name":"Bone health and osteoporosis research","count":1,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10114","display_name":"Balance, Gait, and Falls Prevention","count":1,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11011","display_name":"Frailty in Older Adults","count":1,"subfield":{"id":"https://openalex.org/subfields/2717","display_name":"Geriatrics and Gerontology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12811","display_name":"Aging, Health, and Disability","count":1,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11011","display_name":"Frailty in Older Adults","value":6e-06,"subfield":{"id":"https://openalex.org/subfields/2717","display_name":"Geriatrics and Gerontology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10114","display_name":"Balance, Gait, and Falls Prevention","value":3.7e-06,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10352","display_name":"Physical Activity and Health","value":3.6e-06,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12811","display_name":"Aging, Health, and Disability","value":3.3e-06,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10071","display_name":"Bone health and osteoporosis research","value":2.8e-06,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.930527925491333},{"id":"3020255362","wikidata":"https://www.wikidata.org/wiki/Q747883","display_name":"Physical activity","score":0.8562709093093872},{"id":"74909509","wikidata":"https://www.wikidata.org/wiki/Q10387","display_name":"Gerontology","score":0.5768590569496155},{"id":"1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","score":0.32016128301620483},{"id":"111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","score":0.0}],"counts_by_year":[{"year":2024,"works_count":2,"oa_works_count":2,"cited_by_count":5}],"display_name_alternatives":["Koki Akai"],"block_key":"k akai","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111108971","updated_date":"2026-10-10T12:59:14","created_date":"2025-10-10T00:00:00"}