Management of women with acute coronary syndromes.

performance. Sports Med 2001;31:785–807. 5. Berglund B, Hemmingsson P. Effects of caffeine ingestion on exercise performance at low and high altitudes in cross-country skiers. Int J Sports Med 1982;3:234–6. 6. Fulco CS, Rock PB, Trad LA, et al. Effect of caffeine on submaximal exercise performance at altitude. Aviat Space Environ Med 1994;65: 539–45. 7. Graham TE, Hibbert E, Sathasivam P. Metabolic and exercise endurance effects of coffee and caffeine ingestion. J Appl Physiol 1998;85:883–9. 8. Shearer J, Farah A, de Paulis T, et al. Quinides of roasted coffee enhance insulin action in conscious rats. J Nutr 2003;133:3529–32. 9. Graham TE, Sathasivam P, Rowland M, et al. Caffeine ingestion elevates plasma insulin response in humans during an oral glucose tolerance test. Can J Physiol Pharmacol 2001;79:559–65. 10. Thong FSL, Derave W, Kiens B, et al. Caffeine-induced impairment of insulin action but not insulin signalling in human skeletal muscle is reduced by exercise. Diabetes 2002;51:583–90.