title: Effects of EVA gloves on grip strength and fatigue under low temperature and low pressure.
abstract: OBJECTIVE
  To study the effects of wearing extravehicular activity (EVA) gloves on grip strength and fatigue in low temperature, low pressure and mixing of two factors (low temperature and low pressure).
  
  
  METHODS
  The maximum grip strength and fatigue tests were performed with 10 healthy male subjects wearing gloves in a variety of simulated environments. The data was analysed using the normalization method.
  
  
  RESULTS
  The results showed that wearing gloves significantly affected the maximum grip strength and fatigue. Pressure (29.6, 39.2 kPa) had more influence on the maximum grip compared with control group while low temperatures (-50, -90, -110 °C) had no influence on grip but affected fatigue dramatically. The results also showed that the maximum grip strength and fatigue were influenced significantly in a compound environment.
  
  
  CONCLUSIONS
  Space environment remarkably reduced strength and endurance of the astronauts. However, the effects brought by the compound environment cannot be understood as the superimposition of low temperature and pressure effects.
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing, China. Electronic address: muser_tt@163.com.
authors.forename: Yinsheng
authors.initials: Y
authors.lastname: Tian
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing, China. Electronic address: ding1971316@buaa.edu.cn.
authors.forename: Li
authors.initials: L
authors.lastname: Ding
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
authors.forename: Heqing
authors.initials: H
authors.lastname: Liu
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.affiliation: School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
authors.forename: Deyu
authors.initials: D
authors.lastname: Li
authors.affiliation: Astronaut Center of China, Beijing, China.
authors.forename: Li
authors.initials: L
authors.lastname: Wang
mesh_terms: D000399:Air Pressure; D003080:Cold Temperature; D005080:Exercise Test; D018478:Extravehicular Activity / Q000502:physiology; D017575:Gloves, Protective; D018737:Hand Strength / Q000502:physiology*; D006801:Humans; D008297:Male; D018763:Muscle Fatigue / Q000502:physiology*; D018482:Muscle, Skeletal / Q000503:physiopathology*; D010807:Physical Endurance / Q000502:physiology; D013026:Space Flight
keywords: EVA glove; Fatigue; Low temperature; Maximum grip; Pressure