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. 2003 Jun 18;551(Pt 3):993–1003. doi: 10.1113/jphysiol.2003.037333

Figure 7. Muscle activation assessed by electromyography (EMG) and the interpolated twitch technique (ITT).

Figure 7

Muscle activation was assessed using EMG and the ITT during the steady-state isometric phase of the experimental test and the corresponding reference contractions. EMG was quantified using the RMS values for a 500 ms period during the steady-state, isometric phase. Muscle inhibition was assessed by measuring the interpolated twitch force (ITF) and normalizing it relative to the corresponding resting twitch force (RTF). The resting twitch force was obtained from the completely relaxed muscle 1 s after each contraction. A, protocol 1; B, protocol 2.