For what it's worth - I've been finding that my own travel is making it challenging to do STS, but it just requires creativity. I'm just starting my fourth week (since I'm doing the six month version, that means M1W2).
I've had two intense business trips so far, and a third one scheduled next week. Because most hotel exercise rooms do not have enough equipment for me to do STS comfortably, I do that part when I'm home. My flights usually depart at 6am (meaning I am out the door by 4am) and I check in about 10pm, so I'll get half an hour of light recovery work in by walking through the concourses between planes and after checkin. I take business calls on my bluetooth phone at the same time. That's my active rest day - I need it after three days of STS! In the hotel, I'll do cardio, usually Cardio Coach on the hotel equipment or a kickbox dvd in my room. For the flight home, same thing as the flight out - active rest by walking, carrying my 20-30 pounds of luggage. I can sometimes squeeze in an early morning workout, because I'm flying west not east (three hour time change in my favor!) I shift the start of my "week" based on when the flights are, so sometmes I'm working with six day weeks and sometimes with eight.
My typical usual travel rotations will probably be these:
This one assumes I can't start the rotation earlier than Saturday - often because the previous week's travel involved returning on Friday!
Sat: STS Triceps
Sun: STS Legs
Mon: STS Biceps
Tues: flight out/active rest by walking with luggage; stretch in the hotel room
Wed: Cardio HIIT, ab workout
Thurs: Cardio - longer intervals, or kickbox
Friday: optional Cardio in hotel; active rest by walking with luggage
This rotation assumes I returned home Thursday, or else was not on travel the week before:
Fri: STS Triceps
Sat: Cardio Kickbox
Sun: STS Legs
Mon: STS Biceps
Tues: flight out/active rest by walking with luggage; stretch in the hotel room
Wed: Cardio HIIT, Ab workout
Thurs: Cardio - longer intervals, or kickbox
Friday: optional Cardio in hotel; active rest by walking with luggage
When at home, I use a normal STS rotation with a full day in between, sometimes add cardio on an STS day, and do more ab workouts, just making sure that I have two days away from strength training before doing a compressed three days. During the compressed periods, I don't do cardio on the same day as STS.
So far I'm seeing great endurance and strength gains with STS and the compressed schedule isn't causing a problem. If I had to travel every single week, it might be too hard on my body to compress STS this way, but as it is, each body part gets its minimum 48 hours rest/repair and in my non-travel weeks, twice that. Also, I decided to do the six month program because of the travel, for more gradual weight increases. This is essentially the same travel rotation I was using last fall/winter before STS, except then I used Gym Style, Body Max, Leaner Legs, Pyramids for the strength work, and a resistance band workout in the hotel in addition to the cardio. And I was not working as hard! The 1RMs were a real eye opener
