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Standard exercise test to assess peripheral arterial disease
British Medical Journal
|January 5, 1980
Summary
A standardized exercise test using ankle systolic pressure can effectively assess peripheral arterial disease severity. This simple test is well-tolerated and sensitive for detecting even mild or asymptomatic cases.
Area of Science:
- Cardiovascular Medicine
- Vascular Surgery
- Exercise Physiology
Background:
- Peripheral arterial disease (PAD) diagnosis relies on objective indicators.
- Ankle systolic pressure (ASP) drop post-exercise reflects PAD severity.
- Standardization of exercise testing is crucial for reliable PAD assessment.
Purpose of the Study:
- To investigate the effects of varying exercise workloads on ankle systolic pressure response.
- To develop a standardized, patient-acceptable exercise test for PAD evaluation.
Main Methods:
- Twenty-six patients with suspected PAD underwent exercise testing.
- Exercise protocols included walking at 4 km/h and 6 km/h for 1-2 minutes.
- Ankle systolic pressure was measured immediately post-exercise and during recovery.
Main Results:
- The magnitude of ASP fall was consistent across different exercise durations and speeds.
- Recovery time for ASP to return to baseline varied significantly.
- A 1-minute walk at 4 km/h on a 10% incline reliably induced an ASP drop.
Conclusions:
- A short, standardized exercise test (1 min at 4 km/h, 10% slope) is effective for assessing PAD.
- This test is sensitive for mild/asymptomatic disease and useful for patient follow-up.
- The proposed test demonstrates high patient acceptability with minimal adverse symptoms.