Sentence examples for frequency tens from inspiring English sources
High frequency TENS delivered at low intensities is associated with paraesthesia over the area of stimulation, and low frequency TENS delivered at high intensities is associated with a sharp flicking sensation or even muscle contractions.
Based on the stimulation frequency, TENS can be subdivided in low frequency (frequency <10 Hz) or high frequency (frequency >10 Hz).
The aim of the present study was to compare the analgesic effect of conventional (high frequency) and acupuncture-like (low frequency) TENS between a group of opioid-treated patients and a group of opioid-naive patients in order to determine if this cross-tolerance effect is also present in humans.
Both trials used a control of a similar high frequency TENS and vibration protocol to the ones in the trial.
Although some studies have shown that peripheral stimulation such as high frequency TENS can inhibit cortical excitability [ 20- 22] this technique could be insufficient in modulating peripheral and central pain amplification, especially at encephalic levels, where "ill plastic adaptations" occur as a result of chronic low back pain [ 23- 25].
The cantilevers chosen in these experiments with a thickness of 1 μm and a length of 500 μm exhibited a natural frequency 1st mode at 620 Hz, 2nd mode at 5.15 kHz and 3rd mode at 16.1 kHz.
This retrogradational event allows to accurately place the sequence boundary and to improve the arrangement of the low frequency (3rd order) depositional stacking pattern of the Early-mid Turonian in the Iberian Basin and other European and Tethyan basins.
Passive filters involve the design of one or more low-pass LC filter traps, each trap being tuned as required to a harmonic frequency (5th, 7th, 11th, 13th,... kq+/-1, where k=integer, q=pulse number of converter).
The EMG signals were digitally high-pass filtered using a 10 Hz cutoff frequency (4th order zero-lag Butterworth filter).
These results suggest that high-frequency TENS involves opioid receptors.
High-frequency TENS significantly reduced the primary hyperalgesia to heat and mechanical stimuli when compared with controls receiving no TENS or treatment with low-frequency TENS.
