Abstract
This study documents intra-session and inter-day reproducibility (coefficient of variation [ V%]) and single measurement reliability (intra-class correlations [ R I]; standard error of a single measurement [SEM%] [95% confidence limits]) of indices of neuromuscular performance elicited during peripheral nerve magnetic stimulation. Twelve adults (five men and seven women) completed 3 assessment sessions on 3 days, during which multiple assessments of knee flexor volitional and magnetically-evoked indices of electromechanical delay (EMD V; EMD E), rate of force development (RFD V; RFD E), peak force (PF V; P TF E), and compound muscle action potential latency (LAT E) and amplitude (AMP E) were obtained. Results showed that magnetically-evoked indices of neuromuscular performance offered statistically equivalent levels of measurement reproducibility ( V%: 4.3–31.2%) and reliability ( R I: 0.98–0.51) compared to volitional indices ( V%: 3.7–25.2%; R I: 0.98–0.64), which support the efficacy of both approaches to assessment and the indices PF V, EMD V, EMD E and LAT E offer the greatest practical utility for assessing neuromuscular performance.
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