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Table 3 Mean ± standard deviation of Motor Evoked Potential (MEP) data from transcranial magnetic stimulation for three groups of participants; people with Normal Flexibility, no knee pain (NF), Generalised Joint Hypermobility, no knee pain (GJH) and Joint Hypermobility Syndrome, plus knee pain (JHS). MEP threshold is expressed as a percentage of the TMS output; the MEP latency is expressed in milliseconds (ms). The maximum amplitude of the MEP (MEPmax) is expressed as a proportion of the maximum motor response (Mmax). * denotes a significant difference relative to the other two groups

From: An investigation of the control of quadriceps in people who are hypermobile; a case control design. Do the results impact our choice of exercise for people with symptomatic hypermobility?

  NF (n = 30) GJH (n = 29) JHS (n = 20) p value
Slope (mV/%MSO) 0.01 ± 0.01 0.01 ± 0.01 0.02 ± 0.02* 0.04
MEPmax/Mmax 0.39 ± 0.23 0.41 ± 0.27 0.49 ± 0.30 0.54
MEP latency (ms) 21.9 ± 3.4 21.3 ± 2.7 22.7 ± 3.5 0.33
MEP threshold (%) 61.7 ± 10.2 60.1 ± 14.1 62.4 ± 9.7 0.77