Preguntale al Profesor Tim Watson (y de paso practica tu ingles)

Prof. Tim Watson (PhD, BSc(Hons), MCSP, DipTP)

Tim completed his physiotherapy education in the late 1970's. Since then through his PhD, ongoing research and academic work he has become one of the UK's leading authorities on electrotherapy and its clinical application. His interest in tissue repair is ongoing and he has consolidated current research on this topic into an informative day relevant for any therapist involved in manual therapy, exercise or electrotherapy. He is currently the School Research Lead at the University of Hertfordshire and lectures nationally and internationally on electrotherapy and tissue repair. He has presented 18 key note and invited papers on electrotherapy since 1996 throughout the United Kingdom. He is Research Officer for the Association of Chartered Physiotherapists - Electrotherapy. He regularly reviews papers for 'Physiotherapy', 'Physical Therapy Reviews', and 'British Journal of Sports Medicine'

Estas son 2 de las muchas preguntas que le hemos hecho y las respuestas que nos ha dado:

1- Hello Professor Tim:

When you are going to place the electrodes to a patient, you should be aware that one is negative and a positive? As you should consider this and why?

Could you explain this to me a little more?

Regards

Carolina

R/:

thanks for your e mail. To a greater extent, it really does not matter which electrode is which way round - for most currents anyway

If you are delivering a balance current - like interferential, TENS, most NMES etc, the electrode orientation will make no difference to the clinical outcome of the treatment. Some argue that from a theoretical perspective, they are not the same, but nobody has ever shown that to be the case outside the lab

If one orientation is more comfortable for the patient than the other, then making a decision based on confort is fine,

Not sure if that is the answer that you expected, but that is how I see it from the biophysics and physiological and clinical evidence I have looked at in this regard

Hope it might help a bit (even if it does challenge what you might have been taught!)

Regards

Tim

Professor Tim Watson

School of Health & Emergency Professions

University of Hertfordshire

UK

2- Hello Professor Tom:

What is the difference between set the ultrasound in W/cm2 and Watts?. Some equipment have the 2 options.

I appreciate you can help me solve this question.

thank you very much

Laura

R/:

Laura

Thank you for your e mail

Essentially, the difference is that the Watts reading tells you to total power ouput of the treatment applicator. The Watts per cm2 reading tells you the power density (how much power relative to the size of the treatment head)

It is suggested in just about all the research and clinical literature that the watts per cm2 is the output that you should use

Hope that might help a bit?

Regards

Tim