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Comparative value of arm and leg exercise testing.
D Zdrenghea1, E Bogdan, E Gligor
1Clinical Hospital of Rehabilitation, Department of Cardiology, Cluj-Napoca, Romania.
Summary
The arm exercise test (AET) is less effective than the leg exercise test (LET) for assessing cardiac patients' functional capacity. AET may be suitable for evaluating occupational working capacity in specific roles.
Area of Science:
- Cardiology
- Exercise Physiology
- Occupational Health
Background:
- The arm exercise test (AET) is proposed as an alternative to the traditional leg exercise test (LET).
- Understanding the comparative efficacy of AET and LET is crucial for accurate patient assessment.
Purpose of the Study:
- To evaluate the arm exercise test (AET) as a substitute for the leg exercise test (LET) in cardiac patients.
- To compare the functional aerobic impairment (FAI) and cardiovascular responses between AET and LET.
- To determine the utility of AET for assessing functional capacity and occupational working capacity.
Main Methods:
- Thirty-two cardiac patients (aged 34-65) underwent both LET and AET sequentially within 24 hours.
- Measurements included functional aerobic impairment (FAI), double product (DP), and ST depression.
- Cardiovascular responses and exercise intensity were compared between the two test modalities.
Main Results:
- LET consistently achieved higher effort levels than AET, with 50% greater functional aerobic impairment (FAI) during AET.
- The double product (DP) during LET was higher than during AET in 66.5% of cases.
- Myocardial oxygen consumption (MVO2) was similar, but achieved at lower exercise intensity (VO2) during AET.
Conclusions:
- AET is not a suitable replacement for LET in determining the overall functional capacity (NYHA) of cardiac patients.
- AET may be valuable for assessing occupational working capacity in specific job categories.
- AET is recommended for situations where LET cannot be performed due to patient limitations or test responses.