{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T10:09:01Z","timestamp":1773396541102,"version":"3.50.1"},"reference-count":27,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2019,3,26]],"date-time":"2019-03-26T00:00:00Z","timestamp":1553558400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100011787","name":"Heilongjiang Provincial Science and Technology Department","doi-asserted-by":"publisher","award":["F201421"],"award-info":[{"award-number":["F201421"]}],"id":[{"id":"10.13039\/501100011787","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003851","name":"Department of Education, Heilongjiang Province","doi-asserted-by":"publisher","award":["12541109"],"award-info":[{"award-number":["12541109"]}],"id":[{"id":"10.13039\/501100003851","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010845","name":"Harbin Science and Technology Bureau","doi-asserted-by":"publisher","award":["2013RFQXJ093"],"award-info":[{"award-number":["2013RFQXJ093"]}],"id":[{"id":"10.13039\/501100010845","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Relative humidity (RH) at the body-seat interface is considered an important factor in both sitting comfort and generation of health concerns such as skin lesions. Technical difficulties appear to have limited research aimed at the detailed and simultaneous exploration of RH and temperature changes at the body-seat interface; using RH sensors without the capability to record temperature where RH is recorded. To explore the causes of a spike in RH consistently produced on first contact between body and seat surface, we report data from the first use of dual temperature and RH (HTU21D) sensors in this interface. Following evaluation of sensor performance, the effect of local thermal changes on RH was investigated. The expected strong negative correlation between temperature and RH (R2 = \u22120.94) supported the importance of considering both parameters when studying impact of sitting on skin health. The influence of sensor movement speed (higher velocity approach: 0.32 cm\/s \u00b1 0.01 cm\/s; lower velocity approach: 0.17 cm\/s \u00b1 0.01 cm\/s) into a static RH region associated with a higher local temperature were compared with data gathered by altering the rate of a person sitting. In all cases, the faster sitting down (or equivalent) generated larger RH outcomes: e.g., in human sitting 53.7% \u00b1 3.3% RH (left mid-thigh), 56.4% \u00b1 5.1% RH (right mid-thigh) and 53.2% \u00b1 2.7% RH (Coccyx). Differences in size of RH change were seen across the measurement locations used to study the body-seat interface. The initial sitting contact induces a transient RH response (duration \u2264 40 s) that does not accurately reflect the microenvironment at the body-seat interface. It is likely that any movement during sitting would result in similar artefact formation. As a result, caution should be taken when investigating RH performance at any enclosed interface when the surfaces may have different temperatures and movement may occur.<\/jats:p>","DOI":"10.3390\/s19061471","type":"journal-article","created":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T05:03:12Z","timestamp":1553662992000},"page":"1471","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["In-Depth Investigation into the Transient Humidity Response at the Body-Seat Interface on Initial Contact Using a Dual Temperature and Humidity Sensor"],"prefix":"10.3390","volume":"19","author":[{"given":"Zhuofu","family":"Liu","sequence":"first","affiliation":[{"name":"The higher educational key laboratory for Measuring &amp; Control Technology and Instrumentations of Heilongjiang Province, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianwei","family":"Li","sequence":"additional","affiliation":[{"name":"The higher educational key laboratory for Measuring &amp; Control Technology and Instrumentations of Heilongjiang Province, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meimei","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150081, Heilongjiang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincenzo","family":"Cascioli","sequence":"additional","affiliation":[{"name":"Murdoch University Chiropractic Clinic, Murdoch University, Murdoch 6150, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter W","family":"McCarthy","sequence":"additional","affiliation":[{"name":"Faculty of Life Science and Education, University of South Wales, Treforest, Pontypridd CF37 1DL, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"320","DOI":"10.1016\/j.apergo.2016.12.010","article-title":"A qualitative review of existing national and international occupational safety and health policies relating to occupational sedentary behavior","volume":"60","author":"Coenen","year":"2017","journal-title":"Appl. Ergon."},{"key":"ref_2","first-page":"7","article-title":"Physical activity of Canadian adults: Accelerometer results from the 2007 to 2009 Canadian Health Measures Survey","volume":"22","author":"Colley","year":"2011","journal-title":"Health Rep."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"590","DOI":"10.1093\/eurheartj\/ehq451","article-title":"Sedentary time and cardio-metabolic biomarkers in US adults: NHANES 2003\u20132006","volume":"32","author":"Healy","year":"2011","journal-title":"Eur. Heart J."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"875","DOI":"10.1093\/aje\/kwm390","article-title":"Amount of time spent in sedentary behaviors in the United States, 2003\u20132004","volume":"167","author":"Matthews","year":"2008","journal-title":"Am. J. Epidemiol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"2655","DOI":"10.2337\/db07-0882","article-title":"Role of low energy expenditure and sitting in obesity, metabolic syndrome, type 2 diabetes, and cardiovascular disease","volume":"56","author":"Hamilton","year":"2007","journal-title":"Diabetes"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1016\/j.jtv.2017.05.001","article-title":"Pressure signatures can influence tissue response for individuals supported on an alternating pressure mattress","volume":"26","author":"Chai","year":"2017","journal-title":"J. Tissue Viability"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"367","DOI":"10.1097\/00129334-200509000-00010","article-title":"Pressure ulcers: More lethal than we thought?","volume":"18","author":"Redelings","year":"2005","journal-title":"Adv. Skin Wound Care"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"725","DOI":"10.1016\/j.ijmedinf.2015.05.013","article-title":"Approaches that use software to support the prevention of pressure ulcer: A systematic review","volume":"84","author":"Marchione","year":"2015","journal-title":"Int. J. Med. Inform."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1016\/j.jtv.2010.10.002","article-title":"How do microclimate factors affect the risk for superficial pressure ulcers: A mathematical modeling study","volume":"20","author":"Gefen","year":"2011","journal-title":"J. Tissue Viability"},{"key":"ref_10","first-page":"84","article-title":"Textiles preventing skin damage","volume":"18","author":"Irzmanska","year":"2010","journal-title":"Fibres Text. East. Eur."},{"key":"ref_11","first-page":"637","article-title":"Using impedance plethysmography to evaluate antidecubital underlay systems for chronically immobilized patients","volume":"19","author":"Irzmanska","year":"2010","journal-title":"Adv. Clin. Exp. Med."},{"key":"ref_12","first-page":"20","article-title":"Risk Factors for pressure ulcers in hospitalized elderly without significant cognitive impairment","volume":"19","author":"Magalhaes","year":"2007","journal-title":"Wounds-Compend. Clin. Res. Pract."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.jtv.2016.03.007","article-title":"Development of a sitting microenvironment simulator for wheelchair cushion assessment","volume":"25","author":"Freeto","year":"2016","journal-title":"J. Tissue Viability"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"2345","DOI":"10.1016\/j.buildenv.2010.04.005","article-title":"Novel personalized and humidified air supply for airliner passengers","volume":"45","author":"Zitek","year":"2010","journal-title":"Build. Environ."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"601","DOI":"10.1016\/j.buildenv.2009.07.020","article-title":"Evaluation of comfort level in desks equipped with two personalized ventilation systems in slightly warm environments","volume":"45","author":"Conceicao","year":"2010","journal-title":"Build. Environ."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"945","DOI":"10.1682\/JRRD.2008.10.0142","article-title":"Thermodynamic rigid cushion loading indenter: A buttock-shaped temperature and humidity measurement system for cushioning surfaces under anatomical compression conditions","volume":"46","author":"Ferguson","year":"2009","journal-title":"J. Rehabil. Res. Dev."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"188","DOI":"10.1515\/BMT.2005.026","article-title":"A novel method for patient-oriented assignment of wheelchair cushions based on standardized laboratory testing procedures","volume":"50","author":"Diesing","year":"2005","journal-title":"Biomed. Eng."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"449","DOI":"10.1080\/03091900902952626","article-title":"Assessment of humidity and temperature sensors and their application to seating","volume":"33","author":"McCarthy","year":"2009","journal-title":"J. Med. Eng. Technol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"775","DOI":"10.3390\/s17040775","article-title":"Performance assessment of a humidity measurement system and its use to evaluate moisture characteristics of wheelchair cushions at the user\u2013seat interface","volume":"17","author":"Liu","year":"2017","journal-title":"Sensors"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1016\/j.measurement.2017.03.022","article-title":"Design and development of a thermal imaging system based on a temperature sensor array for temperature measurements of enclosed surfaces and its use at the body-seat interface","volume":"104","author":"Liu","year":"2017","journal-title":"Measurement"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.apergo.2015.08.004","article-title":"Seat pan and backrest pressure distribution while sitting in office chairs","volume":"53","author":"Zemp","year":"2016","journal-title":"Appl. Ergon."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"17037","DOI":"10.1038\/s41598-017-17158-8","article-title":"A catch-up illusion arising from a distance-dependent perception bias in judging relative movement","volume":"7","author":"Meilinger","year":"2017","journal-title":"Sci. Rep."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"68","DOI":"10.1016\/j.jns.2013.01.016","article-title":"Aging, hypertension and physiological tremor: The contribution of the cardioballistic impulse to tremorgenesis in older adults","volume":"326","author":"Morrison","year":"2013","journal-title":"J. Neurol. Sci."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1111","DOI":"10.1289\/ehp.1206273","article-title":"Methods to Calculate the Heat Index as an Exposure Metric in Environmental Health Research","volume":"121","author":"Anderson","year":"2013","journal-title":"Environ. Health Perspect."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"601","DOI":"10.1175\/1520-0450(1996)035<0601:IMFAOS>2.0.CO;2","article-title":"Improved Magnus\u2019 form approximation of saturation vapor pressure","volume":"35","author":"Alduchov","year":"1996","journal-title":"J. Appl. Meteorol."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1111\/cote.12328","article-title":"Mathematical models for water vapour resistance prediction of printed garments","volume":"134","author":"Stancic","year":"2018","journal-title":"Color Technol."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"809","DOI":"10.1088\/0965-0393\/13\/6\/002","article-title":"Effect of clothing material on thermal responses of the human body","volume":"13","author":"Li","year":"2005","journal-title":"Model. Simul. Mater. Sci. Eng."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/6\/1471\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T12:40:41Z","timestamp":1760186441000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/6\/1471"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,3,26]]},"references-count":27,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2019,3]]}},"alternative-id":["s19061471"],"URL":"https:\/\/doi.org\/10.3390\/s19061471","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,3,26]]}}}