OrmIran - yes I would have a rest on Sunday! A 90 minute Karate class can be very energetic. Do you concentrateon core strength whilst breathing through the KATAS and when "striking"?
I think you can get stuck in a rut if there is no variety in your workouts or no intensity challenge. Sorry to hear you gym is moving - how selfish ! What did we do before gyms hey!!
Biglips. I would only do 5 minutes warm up on the treadmill or bike as you only need to prepare your body for exercise (get it in the right frame of mind)! You should feel warm and a bit "oiled". What about putting an incline on or walking a little faster or putting the bike up a level to achieve this result within the 5 minutes if you don't already?
I'd then play aruond with the main cardiovascular bit - maybe sometimes concentrating on just 1 machine and going on it for a longer duration or just uping the intesity so your feeling moderatly puffed whilst exercising.
Not sure I understand about the arm rotation one. Is this one you sit down on and just move your arms? Does it challenge you cardiovascularly?
Hey what about all those gym staff can they update your porgramme to ensure that your not plateauting? Do you do any weights?
On the siatica front - hve you even had sports massage. This can help to break down the knots and scar tissue which is formed around an area of tension/trauma. I guess the whole area of your lower back, bottom and back of the legs is a bit tense and maybe tight???
Zookeeper - welcome! It may be that you ne3ed to step up a gear. You should feel like you've exercised at the end of a workout. If gentle weights challenge you then that great but if they don't....
Does your gym have classes. I thoroughly recommend Bodypump. It changes theshaoe you your body (with the correct technique and weight selection)! Again - where are the gym staff!!!
Welcome sarz - wow 3 miles already. Your body may well be fatigued. How often are you running . Do you run on consecutive days. Do you have rest days? What about the BUPA running programme (have a look through the postings to get an idea...)
Tired legs can also be due to feet problems (flat feet/fallen arches/supernation rotating outwards) etc. Do you know if you have any of these?
Does your gym do Bodypump? Ask the gym staff to do you a programme - say you need to strengthen your legs for running)....
If you let me know what they come up with I don't mind giving my opinion....?
Yes it is important to strengthen the legs. Squats, lunges with or without weights are excellent for this.