Terminology and Interpretation Across Neuromuscular Profiling Methods: A Systematic Review

Area of Science:

• Sport Science
• Biomechanics
• Human Movement Analysis

Background:

• Neuromuscular profiling (NP) objectively assesses function for training.
• Inconsistent terminology and calculation methods for NP metrics limit practical application and cross-study comparisons.
• A framework is needed to validate NP terminology against measured outputs and intended traits.

Purpose of the Study:

• Evaluate if common NP terms accurately reflect intended neuromuscular characteristics.
• Assess six NP methods: Dynamic Strength Index, Eccentric Utilisation Ratio, Force-Velocity Profile, Impulse Analysis, Reactive Strength Index, and Reactive Strength Index Modified.
• Identify methodological limitations impacting NP interpretation and standardization.

Main Methods:

• Systematic literature search (PubMed, Scopus, SPORTDiscus) yielding 184 studies.
• Modified quality scale for relevance assessment.
• Extracted data on NP outputs, labels, mechanisms, and evidence; synthesized findings by themes.

Main Results:

• Evaluated 209 NP methods (147 ratio-based, 62 non-ratio-based).
• NP interpretation is task-dependent and affected by methodological variability.
• Inconsistent terminology, definitions, and calculations were observed; common terms include 'explosive', 'springy', 'stiff', and 'strong'.

Conclusions:

• This review synthesizes NP terminology, interpretation, and limitations.
• Clarifying NP terms and addressing methodological issues can enhance communication.
• Standardized use of NP tools in sports science and performance settings can be improved.