Originally Posted by SlothD
Yeah I wasn’t meaning to use US twice per day, only heat-pad the 2nd time, but more due to the nature of multi-tasking than actual danger from US, so thanks for that info, will keep the dangers of US over-usage in mind.I was thinking the main one that I posted in the morning, while I’m sitting at my desk. And then another standing one in the evening, just with heat-pad.
Or should I mix it up even more if I do 2 sessions on some days?
Well, it is not all about any danger I am concerned.
The thing is there is a change of gaining that much too rapidly the tissue can’t cope with it.
Here was already a guy taking the road already. Using ultrasound twice day, several days a row.
Gaining tremendous amount of BPFSL in just days or couple of weeks.
He was Actually warned about it but he chose to do it and ended up with serious overuse syndrome soon after.
There is a limits of what can be expected as a gains not exceeding the tissues capability to heal.
With 1 - 2 mm per week we are on the safe side.
There is not lot of data available but taking an example of deep fascia elongation as side product of limb lengthening procedure. At strain rate of 1 mm a day they find collagen type expression and other positive positive markers. With increasing the strain rate to 2mm a day there are already increased markers of collagen type 3 expression and a lot of markers related with inflammatory responses. Same procedure affecting nerves as well going beyond 1mm strain rate per day.
In physical therapy you rarely find a therapy plan using ultrasound day to day for weeks in.
Everyone should start at the other end with any therapeutic heat Application in PE
If once a week works and you gain 1 to 2mm a week then stick with it.
I personally found out three days a row bringing the gains. The initial routine was 3 ON 2 OFF
Now I prefer to do 3 On 4 OFF. It should be much better in a long term.
The use of ultrasound can upregulate for example TGF-β expression to level it turns against.
It can be good thing when controlled but overly expressed it may produce unwanted collagen 3 production and inflammation responses.
Used properly the Ultrasound can turn down inflammation. So you see more is not the way.
As far as for your thinking of twice a day heating, I would skip the number two heating with any device.
Instead doing it cold with very low load could be better in a respect to tissue healing.
START 18/13.15 cm Jul 24th 18 (7.09/5.18") NOW 22.5/15.2 cm Fer 12th 20 (8.86/5.98") GOAL 8.5"/ 6"
When connective tissue is stretched within therapeutic temperatures ranging 102 to 110 F (38.9- 43.3 C), the amount of structural weakening produced by a given amount of tissue elongation varies inversely with the temperature. This is apparently related to the progressive increase in the viscous flow properties of the collagenous tissue when it is heated. (Warren et al (1971,1976)