Shadow zone is an area where seismograph can not be detect earthquake after the seismic wave have passed through the earth. When earthquake strikes, seismic wave radiate out spherically from the earthquake's epicenter. At the angular distances of 104 degree to 140 degree from the earthquake focus, any direct P waves are not received.
Questions about bending over after Hip replacement. I just read in another thread a reminder of not bending over for 6 weeks after surgery. It has prompted this question. I guess I should ask the PT, but I'd also like input from folks who have been there. First, let me tell you about my job.
If you have osteoporosis, you should avoid any movements that require you to bend forward from the waist, such as doing a toe touch. When you bend forward from the waist, your shoulders and back become rounded. This is also known as spine flexion and can increase the risk of a spine fracture.