References
         
         
            - 1 
               
               Declaration of Helsinki. World Medical Association. .
               Available at 
               http://www.wma.net/e/ethics unit/helsinki.htm 
               
- 2 
               Institute for Laboratory Animal Research, National Research Council
               .
               Guide for the Care and Use of Laboratory Animals. Washington, D.C.: National Academy Press 1996: 140 
- 3 
               Medical Research Council
               .
               MRC ethics series: Good research practice 2005. London: Medical Research Council 2005: 1-16 
- 4 
               Shephard RJ. 
               Ethics in exercise science research. 
               Sports Med. 
               2002; 
               32 
               169-183 
               
- 5 
               
               The American Psychological Association.
               .
               Ethical principles of psychologists and code of conduct. 
               Am Psychol. 
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               57 
               1060-1073 
               
Correspondence
         D. J. Harriss
            Research Institute for Sport and Exercise Sciences
            
            Henry Cotton Campus
            
            Liverpool John Moores University
            
            Webster Street
            
            Liverpool L3 2ET
            
            United Kingdom
            
            Phone: +44 15 12 31 44 27
            
            Fax: +44 15 12 31 43 53
            
            Email: D.Harriss@ljmu.ac.uk