For your needs... Hills are better than flat but stairs are not actually a good alternative. Stairs have fixed heights which are not good for much at all and are dangerous...
If I was coaching you I would really really really really try to get you off the concrete surface of the parking lot and onto field turf or grass or hills...
But if that's all you got I have a question...
If the parking lot is only 80-90 meters how do you do 100m sprints?
BTW, in my journal, Acole suggested me to use Weight Vest and said, To00day have some good use of it with great result, can u please tell me more about the Vest usage? (i had just PMed u about this before i saw ur reply)
For your body composition goals and knee health of all you have is flat hard surfaces... Just shorten the distance drastically. Use a modified standing three point stance (force yourself to touch the ground) and do repeated short sprints.
Do you have a watch w a chronometer? You can set it to beep at intervals?
Most of the energy expenditure in a sprint occurs during acceleration and if you properly do it (contrary to popular opinion) it is a glute dominant (think prone glute push) exercise rather than quad dominant movement and should be very easy on the knees. This is one of my favorite protocols we have done for leaning out and it would be perfect for you - especially because it allows you to drop upper body more, modify it for your times.
Starting position is hand on start line.
1) 60 meter sprint in < 8 or 9 seconds (watch beep)
2) 20 seconds to return to start (running back the other way)
3) Repeat for 4-10 reps for a set
- between sets do - 100 push-ups, 100 back extensions and 100 leg raises
Do three sets.
This will get u super lean.
When I mention 100m sprint.. it is not really 100m... I was referring to trying to MAX out and sprint like 100m..
I dont think i can find a hill.. even if i can.. it will still have pavement or steps ...
When u mentioned touching the ground and change direction, isnt that like Suicide in basketball training?
I always thought all those change of direction is bad for joint and gear more toward endurance than max explosive.
But u are right about leaning fwd accelerating with the dropped upperbody.
reading the following with some questions:
Starting position is hand on start line.
1) 60 meter sprint in < 8 or 9 seconds (watch beep),
(slow down... no need to touch ground?)2) 20 seconds to return to start (running back the other way)
(Reset with hand on starting line?)3) Repeat for 4-10 reps for a set
(4-10 reps is alot is not it?)- between sets do - 100 push-ups, 100 back extensions and 100 leg raises
(doing this many between set is killing my CNS... how can i even do run set 2 ?)It take me 30 min to complete 10 reps of the max effort sprint. (with 2.5 min rest bettwen each reps..)
with T000day suggestion and doing 3 set (so 200 pushup, back ext and leg raise?).. seems like it is going to be a LOOONg day....
btw, in my journal Acole mentioned the use of weight vest and suggested me to seek your advice... can u tell me abit more how to utilize the weight vest? i have one sitting at home at 20lbs.
I had just PMed you about this... before i read ur reply here, sorry about that.