title: [Effects of exhaustive exercise on biochemical indexes of endurance-trained mice].
abstract: OBJECTIVE
  To observe possible mechanism that endurance training can enhance anti-fatigue capability, and that blood redistribution by analyzing some biochemical indexes of endurance-trained mice after exhaustive exercise.
  
  
  METHODS
  The model was set up by exhaustive exercise. The indexes include the activity of SOD, CAT and POD and the MDA content in serum and the NO content in liver, muscle, heart and serum.
  
  
  RESULTS
  After exhaustive exercise, the SOD activity in serum and the NO content in liver significantly decrease (P < 0.05 - 0.01), and the activity of POD and CAT, the NO content in serum and muscle significantly increase (P < 0.05 - 0.01), but the rest insignificantly change in non-endurance (P > 0.05). In endurance group, the CAT activity in serum are significantly higher than in non-endurance (P < 0.05), and the NO content in serum is significantly lower than in non-endurance (P < 0.01), but the rest are insignificantly different between two groups (P > 0.05). After 24h restoration, in non-endurance group, the CAT activity and the MDA content in serum and the NO content in liver significantly rise (P < 0.05-0.01), and the NO content in muscle and serum significantly decrease (P < 0.05), but the rest insignificantly change (P > 0.05). In endurance group, the SOD activity in serum and the NO content in liver, serum and heart significantly rise (P < 0.05), and the CAT activity in serum significantly decreases (P < 0.05), but the rest insignificantly change (P > 0.05). In endurance group, the CAT activity and the MDA content in serum are significantly lower than in non-endurance (P < 0.05), but the NO content in heart is higher than in non-endurance (P < 0.05). The rest are insignificantly different between two groups (P > 0.05).
  
  
  CONCLUSIONS
  The possible mechanism, which endurance training can enhance anti-fatigue capability, is relative to enhance the capability to resume balance. Blood redistribution are possibly relative to change to the NO content.
authors.affiliation: Institute of Sports Biology, Shanxi Normal University, Xi'an 710062, China.
authors.forename: Quan-Jiang
authors.initials: QJ
authors.lastname: Zhang
authors.forename: Qiu-Xia
authors.initials: QX
authors.lastname: Li
authors.forename: Zheng-Ying
authors.initials: ZY
authors.lastname: Xiong
authors.forename: Quan-Hai
authors.initials: QH
authors.lastname: Zhang
mesh_terms: D000818:Animals; D002374:Catalase / Q000097:blood; D008099:Liver / Q000737:chemistry; D008297:Male; D008315:Malondialdehyde / Q000097:blood; D051379:Mice; D009132:Muscles / Q000737:chemistry; D009569:Nitric Oxide / Q000032:analysis / Q000097:blood; D009195:Peroxidase / Q000097:blood; D010805:Physical Conditioning, Animal / Q000502:physiology*; D010807:Physical Endurance / Q000502:physiology*; D013482:Superoxide Dismutase / Q000097:blood
chemical_list: D009569:Nitric Oxide; D008315:Malondialdehyde; D002374:Catalase; D009195:Peroxidase; D013482:Superoxide Dismutase