title: Investigation of pajama properties on skin under mild cold conditions: the interaction between skin and clothing.
abstract: BACKGROUND
  Clothing is considered the second skin of the human body. The aim of this study was to determine clothing-wearer interaction on skin physiology under mild cold conditions.
  
  
  METHODS
  Skin physiological parameters, subjective sensory response, stress level, and physical properties of clothing fabric from two longitude parallel-designed wear trials were studied. The wear trials involved four kinds of pajamas made from cotton or polyester material that had hydrophilic or hydrophobic treatment, conducted for three weeks under mild cold conditions. Statistical tools, factor analysis, hierarchical linear regression, and logistic regression were applied to analyze the strong predictors of skin physiological parameters, stress level, and sensory response.
  
  
  RESULTS
  A framework was established to illustrate clothing-wearer interactions with clothing fabric properties, skin physiology, stress level, and sensory response under mild cold conditions.
  
  
  CONCLUSIONS
  Fabric has various effects on the human body under mild cold conditions. A fabric's properties influence skin physiology, sensation, and psychological response.
authors.affiliation: Institute of Textiles & Clothing, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yao
authors.forename: Mayur D I
authors.initials: MD
authors.lastname: Gohel
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.forename: Waiyee J
authors.initials: WJ
authors.lastname: Chung
mesh_terms: D002395:Catecholamines / Q000652:urine; D003020:Clothing / Q000009:adverse effects / Q000523:psychology*; D003080:Cold Temperature; D003258:Consumer Behavior; D032561:Cotton Fiber; D004548:Elasticity; D006801:Humans; D008137:Longitudinal Studies; D008422:Materials Testing; D010539:Permeability; D011091:Polyesters; D012867:Skin / Q000294:innervation; D012879:Skin Physiological Phenomena; D012890:Sleep; D013315:Stress, Psychological / Q000523:psychology* / Q000652:urine; D011795:Surveys and Questionnaires; D014110:Touch
chemical_list: D002395:Catecholamines; D011091:Polyesters