Exercise Capacity (METs)

About

Patents with a poor exercise capacity (<4 METs) represent a high-risk subset, especially if ischemic ECG changes are noted at this low workload. Conversely, patients with a good exercise capacity (>10 METs) often have an excellent prognosis independent of the extent of anatomical CAD. It is estimated that for every 1 met increase in exercise capacity the survival improved by 12%. Failure to reach 85% of predicted exercise capacity was significantly associated with increased risk of MI, unstable angina, coronary revascularization as well as mortality. The association with nonfatal cardiac events suggests that poor exercise capacity is not simply a reflection of a greater burden of comorbidities and worse patient health status.

References

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Braunwald’s Heart Disease – 7th Edition. Elsevier Saunders. 2005 (ISBN 0721605095)

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Exercise physiology for health care professionals. Human Kinetics. 2001 (ISBN 0880117524)

Gibbons RJ, Balady GJ, Bricker JT, Chaitman BR, Fletcher GF, Froelicher VF, Mark DB, McCallister BD, Mooss AN, O'Reilly MG, Winters WL Jr.

Journal of the American College of Cardiology 2002 October 16, 40 (8): 1531-40

Zipes, Libby, Bonow, Braunwald.

Braunwald’s Heart Disease – 7th Edition. Elsevier Saunders. 2005 (156, 162)

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New England Journal of Medicine 2002 March 14, 346 (11): 793-801

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New England Journal of Medicine 2005 August 4, 353 (5): 468-75

Morris CK, Myers J, Froelicher VF, Kawaguchi T, Ueshima K, Hideg A.

Journal of the American College of Cardiology 1993, 22 (1): 175-82

The Exercise Capacity (METs) calculator is created by QxMD.

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