Key result
Forearm occlusion with handgrip exercise increases brachial artery dilatation ~53% compared to occlusion alone.
Why the study?
The effect of handgrip exercise induced ischaemia on non-invasive assessment of endothelial function in the brachial artery was not well characterized.
Does handgrip exercise induced ischaemia combined with forearm occlusion increase brachial artery dilatation compared to occlusion alone in healthy subjects?
Population
10 healthy subjects under 40 years without known cardiovascular risk factors
Comparison
Forearm cuff occlusion with handgrip exercise induced ischaemia vs occlusion alone
Design
Ultrasound measurement study of brachial artery diameter and blood flow
Authors
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May confound brachial FMD assessment; leaves open standardization needs in larger patient cohorts.
Does handgrip exercise induced ischaemia combined with forearm occlusion increase brachial artery dilatation compared to occlusion alone in healthy subjects?
Absolute Event Rate: 6.9% vs 4.5%
Adding handgrip exercise to forearm occlusion enhances brachial artery dilatation without changing peak blood flow, suggesting continued responsiveness to ischaemic stimuli.
Agewall et al. (1999) studied Healthy subjects (n=10). Forearm cuff occlusion with handgrip exercise induced ischaemia vs. Forearm cuff occlusion alone was evaluated on Brachial artery dilatation (95% CI 0.3% to 4.5%). Forearm occlusion with handgrip exercise induced ischaemia increased brachial artery dilatation significantly more than occlusion alone (6.9% vs 4.5%; 95% CI 0.3% to 4.5%).
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