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Table 3 Summary of results for sensory perception thresholds at 2,000 and 5 Hz from ring finger

From: Short-term sensory and cutaneous vascular responses to therapeutic ultrasound in the forearms of healthy volunteers

  Pulsed US group Continuous US group
Pulsed US (3 MHz)a Control-p Control-c Continuous US (1 MHz)b
  Before Aftre CS ES Before After CS ES Before After CS ES Before After CS ES
M 8.5 M 7.6 0.9 0.14 M 8.5 M 7.1 1.3 0.12 M 8.6 M 7.8 0.8 0.2 M 8.6 M 8.0 0.7 0.1
SD 3.8 SD 1.7 SD 3.8 SD 1.8 SD 2.4 SD 1.7 SD 2.4 SD 2.2
CI (6.8–10) CI (7.5–9.7) CI (6–10) CI (7–8) CI (6–8) CI (7–9) CI (7–9) CI (6.9–9)
C M 13.4 M 12.2 1.3* 0.17 M 13.4 M 10.5 2.8* 0.36 M 12 M 10.8 1.6* 0.2 M 12.4 M 11.4 1* 0.1
SD 3 SD 3.6 SD 3 SD 3.8 SD 4.3 SD 3.9 SD 4.4 SD 3.6
  CI (12–15) CI (10–13)    CI (12–14) CI (8–12)    CI (10–15) CI (9–13)    CI (10–14) CI (9.8–13)   
  1. aPulsed mode, 3 MHz, 2.5 W/cm2, 5 min.; bcontinuous mode, 1 MHz, 0.8 W/cm2, 3 min. Control-p no US therapy in pulsed US group; Control-c no US therapy in continuous US group, Tx treatment, M mean, CI 95% confidence interval, SD standard deviation, CS change scores, ES effect size r (pre-post/pooled SD). Aβ = R-CPT at 2,000 Hz; C = R-CPT at 5 Hz; R-CPT ranged current perception threshold test. *Significance level at p < 0.05.