Volume 3, Issue 1 (12-2004)                   JRUMS 2004, 3(1): 34-43 | Back to browse issues page

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The Effects of Pulsed and Continuous Ultrasound on the Para-Spinal Regions on Parameters of H. Reflex of Triceps Surae.. JRUMS 2004; 3 (1) :34-43
URL: http://journal.rums.ac.ir/article-1-5415-en.html
Abstract:   (1335 Views)
Background: The thermal and non-thermal effects of ultrasound has been used in physiotherapy of low back pain for a long time. The purpose of this study was to investigate the thermal and non-thermal effects of applying therapeutic ultrasound on the spinal mixed nerves (S1 – S2) of  para-vertebral regions on the Parameters of H reflex  of triceps surae muscles.
Materials and methods: Fourteen healthy women between 20 to 30 years old were participated in 3 sessions of this experiment:
Each subject voluntarily shared in 3 sessions of:
1. Continuos ultrasound (intensity: 1.5 w/cm2, for 5 minutes)
2. Pulsed ultrasound (intensity: 1 w/cm2, for 5 minutes)
3. Placebo ultrasound for 5 minutes)
At each session 5 maximal, H reflexes and 3-M waves were recorded before (T0), immediately after (T1) and 5 minutes after (T5) applying the ultrasound.
Results: Statistical measurements showed no significant differences in latency and amplitude of H reflex and H/M ratio at T0, T1 and T5 recordings between the three ultrasound groups.
Conclusion: This study showed that the thermal and non-thermal properties of ultrasound have no effect on motoneurone pool excitability and conduction through the spinal roots.
 
Key words: Ultrasound, H reflex, M wave
Keywords: Ultrasound, H reflex, M wave
Full-Text [PDF 258 kb]   (450 Downloads)    
Type of Study: Research | Subject: Rehabilitation
Received: 2020/06/8 | Accepted: 2020/06/8 | Published: 2020/06/8

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