It doesn't. The Earth orbits the sun in the same direction that it rotates. That's because both the orbit and the rotation are the result of the rotation of the cloud of gas and dust that collapsed to form the solar system. Our rotation and axis were changed when Earth was wacked by the impactor that resulted in the moon.
Find out how many calories you burn for Seated Leg Extension Machine. The number of calories you burn while exercising is dependent on the exercise you do, your weight, and the time spent doing the exercise. Use the calories burned calculator below to see how many calories you burned during your workout. Calculate. âº Calories Burned: 36. Seated Leg Curl Machine. Preacher Curl Machine.
Lift your left leg off the chair, stick it out straight for 2 seconds and then lower it for 2 seconds. Repeat 10 to 15 times with each leg. 1  This exercise works your lower abdominals, lower back and transverse abdominus. 2  Ask your doctor if you should do it, if you have chronic back pain.