Oh my Goldwasher, crashes into the board floor are not good. Last time I was out rollerskating was ~ 2003, I got up some good speed, had a great time and never went down during my two hours of play. Not bragging just pleased! I was good and tired that night.
Ok, Sore Back OR sore muscles 'most'anywhere -
From the hips to the neck zone: Tennis ball between you and a
rough tectured wall or a carpeted floor. The wall is a gentler massage while the floor is a severe massage as your full body weight is coming down on the ball forcing it deeply into those inflamed muscles.
BE CAREFUL using the floor method!!!!!!! It takes a lot of dropped tennis balls to learn how to do the wall/ball/back method but the rougher the texture of the wall the easier it will be to keep the ball there. This works, I've used it many times myself, simple, easy, low cost but noticeable when you are using it around others.
Electrical Methods: Tens Machines or EMS machines (anywhere on the body but not the head and be careful on the spine!)
As far as I am concerned these are both electrical impulse machines (thats electrical shock treatment). They have different frequency values but both work. The analog units are physical dials and switches while the digital units have memories and you push buttons to scroll and choose from a menu. I have both types and I prefer the analog unit as
the one I have allows the user to choose the amount of time between 30 min, 60 min or constant (on till the user shuts it off or the battery runs out)
Either the analog or digital can be personal units meaning they are easily carried around in a pocket or clipped to a belt. (I found the clip on mine broke easily but no big deal I just keep it in a pocket, loose pants are preferred over stretch and cling pants)
The electrical units require Electrodes or Pads to transmit the electrical impulse to the skin. There are plain gel pads and powdered carbon/silver filled gel pads. I find the plain gel pads Tend to
not transmit the electrical energy uniformly and can
arc much easier than the carbon/silver filled pads. And of course the carbon/silver filled pads cost more.
The pads are reusable. The gel of either pad absorbs body moisture, too much moisture and the gel will not hold together so NO Heavy Sweating while using the pads!! IF you should sin and really sweat then Either type of electrode/pad will shock the snot out of you!! Trust me on this!!!!! The pads have a "use by date" on them, mine are dated to expire in 2010. What happens is the moisture stored in the pads evaporates and if they are allowed to get fairly dry then they are dead. Add
a little distilled water to them from time to time and they are good for a long time.
The analog unit I have is the 85-10 Analog Tens Unit and current catalog price for it is $50.00 It is a "two channel" unit that uses two double wire cables with two pads for each cable connected to the negative and positive contacts.
The digital EMS (Electro Muscle Stimulator) unit I have cost a LOT more than the analog unit and as far as I am concerned, in this case, going digital is not better than the analog. The analog settings are just straight forward: turn it on to the lowest energy setting (voltage), adjust the width, adjust the rate, set the timer, set it on one of the three modes and adjust the Amount of energy to suit the user (experiment on yourself to see what feels good to you but keep the voltage down low). One does not need to have the muscles doing contortions actually this is NOT advisable as the heavy contortions can/will hurt you, all that is needed is a gentle stimulation of the muscles and the machines will do the Massaging for you. While you are at it, purchase an extra set of two cables for either unit.
Under severe conditions one can go to sleep with the units running, just use some "friendly to humans tape" to hold the lead ends from being tugged and go to sleep, laying down or in a recliner. I have used it that way and it has worked fine for me. And it does work! Analog or Digital. {If you really want to be manly about it then go ahead and use Gorilla Tape but you won't be happy}
I purchased the 85-10 and Carbon/Silver Filled Electrodes (pads)from:
Physical Enterprise, Inc.
170 Eastman Meadows
Petaluma, CA 94952
866-568-0133
physicalenterprise.com
I dealt with a Mr. Graham A. Degan
They have been known to have special offers, if you purchase a large quantity of electrode pads then the 85-10 is yours at no charge.
The electrode pads come in: 2" x 2" Square (what I like) 1.875" x 3.75" Rectangular
2" Round 3" Round
The "White Flower Oil", an Analgesic Balm, penetrates and helps As Long As One Does Not Get It On Sensitive Skin or in the Eyes - that is a No No! Available at most Asian grocery stores and likely on line.

The grey one is the 85-10, the white is the EMS HT326L. Choose to not overwork your body and hurt yourself or as you know you will not like yourself. Guess why I have all this stuff

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AND - just to help in general take a look at this book: "Anatomy of Stretching" by Craig Ramsay, Thunder Bay Press,
ISBN-13:978-1-60710-398-1, ISBN - 10: 1-60710-398-2