Key result
Four-week inspiratory muscle training improves limb blood flow and diaphragm hypertrophy in CHF patients.
Why the study?
Inspiratory muscle training improves functional capacity in chronic heart failure, but the underlying mechanisms remain unknown.
Does a 4-week program of inspiratory muscle training improve limb blood flow under inspiratory loading in patients with chronic heart failure and inspiratory muscle weakness?
Does a 4-week program of inspiratory muscle training improve limb blood flow under inspiratory loading in patients with chronic heart failure and inspiratory muscle weakness?
Inspiratory muscle training for 4 weeks improves resting and exercising limb blood flow and induces diaphragm hypertrophy in patients with chronic heart failure and inspiratory muscle weakness.
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May improve limb perfusion in HF with inspiratory weakness; leaves open clinical outcomes pending randomized trials.
Chiappa et al. (2008) studied Chronic heart failure with inspiratory muscle weakness (n=28). Inspiratory muscle training (IMT) vs. Baseline (before IMT) and healthy volunteers was evaluated on Blood flow to the resting calf (CBF) and exercising forearm (FBF) during inspiratory muscle loading. Inspiratory muscle training for 4 weeks improved resting calf blood flow, exercising forearm blood flow, and diaphragm hypertrophy under inspiratory loading in patients with chronic heart failure.