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Ivy OW Man, Matthew Morrissey, Jozef Cywinski

Effects of Neuromuscular Electrical Stimulation on Ankle Swelling in the Early Period After Ankle Sprain. Ivy OW Man, Matthew Morrissey, Jozef Cywinski. Purpose.

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Ivy OW Man, Matthew Morrissey, Jozef Cywinski

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  1. Effects of Neuromuscular Electrical Stimulation on Ankle Swelling in the Early Period After Ankle Sprain Ivy OW Man, Matthew Morrissey, Jozef Cywinski

  2. Purpose • To test the effects of motor-level biphasic ES applied to the gastrocnemius and tibialis anterior muscles on ankle swelling in patients with in 5 days of an ankle sprain injury. • Inflammation is the greatest enemy of healing • The goal of early treatment should be to delay or minimize swelling • NMES causes muscle contraction- this compresses the venous and lymphgatic vessels

  3. 34 subjects 18 to 60 years old Ankle sprain with in 5 days of first scheduled test Invitation Those excluded from experiment: Diabetics Peripheral vascular disease or neurovascular deficits Metal implants in the leg Injury to other ankle Open wounds pacemaker Three Groups: NMES Submotor ES Sham (control) Randomly assigned Medical history was documented Methods

  4. Height/ body mass measured Ankle girth- figure-of-eight tape measuring technique Blind bilateral girth measurements taken Volumeter- used to measure swelling Experimental Protocol

  5. Dried leg and put 4 electrodes Gastrocnemius Tibialis anterior Supine Injured leg elevated ES pattern for NMES and Submotor group: 360 cycles Lasting 5 seconds 400 pulses each cycle Frequency- 80 Hz causing a short lasting muscle contraction for 1.25 sec. (bursts) Bursts-every 5 sec. frequency of pulses varying from 45 to 120 Hz Last phase- 77 seconds after starting the machine- Frequencey 2.68 to 83.33 Hz Lasting 40 to 180 microseconds Continuing

  6. The groups • NMES- • Max level of tolerance for 30 minutes • Submotor- • Intensity increased until muscle flickered and then intensity was reduced very slightly until flicker disappeared • Subject should still have some sensation • Sham – • Same manner as other two • Electrodes attached but no ES was applied

  7. Results • Statistical differences were found, but these findings may not be meaningful because there was a statistically significant difference in ankle girth measurements taken at baseline among the three groups. • P> .05 for Hughston Clinic Subjective Rating Scale for Ankle Disorders • For girth • Kruskall-Wallis analyses • Volume

  8. For graphs see Word

  9. Athletic training- gives us free range to continue to experiment on the best ways to reduce swelling for a particular injury • NMES reduces swelling on the ankle, Different size ankles with NMES is a factor in how fast swelling of an injury is reduces

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