Why the study?
Does intermittent handgrip dynamometry alter respiratory sinus arrhythmia and standard deviation of heart rate compared to rest in healthy volunteers?
Population
60 healthy volunteers
Comparison
5 minutes of intermittent handgrip dynamometry vs 5 minutes of rest
Design
Other
Authors
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RSA stability during dynamometry unlike SDHR supports its selectivity as vagal marker; hypothesis-generating for prognostic use and needs validation.
Does intermittent handgrip dynamometry alter respiratory sinus arrhythmia and standard deviation of heart rate compared to rest in healthy volunteers?
Respiratory sinus arrhythmia (RSA) is a selective measure of parasympathetic vagal tone, whereas standard deviation is influenced by both sympathetic and parasympathetic arousal, suggesting RSA may offer advantages as a prognostic tool.
Moser et al. (1994) studied this question.