Table 2. TMS intensities, resting corticospinal excitability and intracortical inhibition.
SICI | LICI | |||||
Young | Older | Young | Older | |||
TS intensity (% MSO) | 60 ± 1.8 | 61 ± 2.2 | 59 ± 1.8 | 60 ± 1.9 | ||
CS intensity (% MSO) | 40 ± 1.2 | 40 ± 1.6 | / | / | ||
tMT (% MSO) | 50 ± 1.4 | 51 ± 2.2 | / | / | ||
Unconditioned MEP in rest (mV) | 1.2 ± 0.2 | 0.9 ± 0.08 | 0.8 ± 0.08 | 0.9 ± 0.1 | ||
Inhibition in rest (%) | 71 ± 3.5 | 52 ± 8.0 | 83 ± 4.4 | 47 ± 10.8 |
Data are reported as mean ± SEM. Inhibition was calculated as follows: [1 – (MEPCS + TS / MEPTS)] * 100. CS: conditioning stimulus, LICI: long-interval intracortical inhibition, MSO: maximum stimulator output, SICI: short-interval intracortical inhibition, tMT: task motor threshold, TS: test stimulus.