Not all of it, with curl ups no matter how many you do you will not get any results, with plain curl ups, you only get flextion, but you also need extension, in order to get this, take like a very small rubber ball place it behind your back so you never touch the floor without arching your back,
for your routine i would-
100 curl ups (with rubber ball)
50 squats
75 lunges
and try only 3 minutes on the elliptical
and only 50 weight lifts
with this routine i guarantee results. and it wont put to much strain on your body.
the lunge is a great exercise for the legs.
the downward dog
Squats, Jumping jacks, Lunges
Exercise: jogging, lunges, deep knee bends
Try to do some squats and Lunges
Lunges. see: http://en.wikipedia.org/wiki/Lunge_(exercise)
A dynamic warm-up routine that includes movements like leg swings, arm circles, high knees, and lunges is effective for preparing your body for exercise. These movements help increase blood flow, improve flexibility, and activate the muscles you'll be using during your workout.
Box squats, front squats, back squats, and leg presses are a few alternatives to lunges.
Squats and lunges are effective exercises for toning and strengthening the thighs.
Floor exercises provide a wide range of possibilities. Basic crunches to work your abs and push-ups for an all over muscle toning are a great start to the floor exercise routine, also there are lunges, squats, and bridges to get you started.
Squats and lunges are the best exercises to work your glutes and get quick results.
Some effective leg workouts you can incorporate into your fitness routine are squats, lunges, deadlifts, leg presses, and calf raises.