Ther-ex more parameters

Question 1

Stimulating denervated muscle (after 2 weeks)

Answer 1

Frequency: ?
Intensity: adequate for moderately strong muscle contraction
Pulse duration/width: > 10 ms
Duty: on - 10 sec, off - 1:4/1:5 (to minimize fatigue)
Time: 3 x 5-20, 3x/day

note: first two weeks: asymmetric, biphasic waveform-pulse duration < 1 ms

Question 2

Increasing ROM

Answer 2

Frequency: 35-55 pps (50 = tetany)
Intensity: adequate for muscle contraction to move body part through its gravity-resisted range (increase intensity gradually)
Pulse duration/width: 200-600 usec (muscle contraction)
Duty: on - 15 - 20 sec, off - 1:1 or greater
Time: 90 minutes (or 3 x 30 mins)