In my latest research, I've discovered that tendonitis and osteoporosis are indeed related. This connection is due to the fact that both conditions involve a degeneration process in our body tissues, such as bones and tendons. If you have osteoporosis, you're at a higher risk of developing tendonitis because your bones are weaker and more susceptible to injury. It's also been found that certain medications used for osteoporosis may potentially cause tendonitis. So, it's clear that the two conditions can influence each other, making it even more crucial to take care of our bone health.