You might want to think again before doing a set of jump squats or challenging a neighbour to a tennis match if you have osteoporosis. While your mind might be in it, your body will have a hard time keeping up, and it could further cause damage to your bones.

Osteoporosis is a common condition where there’s loss in bone mineral density and bone quality, says Dr Tanuj P. Palvia. You’re losing bone at a faster rate, and this can increase risk of injury, like fractures and pain with ageing.

While anyone can get it, post-menopausal women are at higher risk for osteoporosis due to lower levels of oestrogen, a hormone that is responsible for bone mass, he says. And, you might not know you have it unless you are tested with a bone density exam or have a fractured bone, where you’re forced to get one and check levels.

As with osteoporosis, there’s an “abnormally thin and weakened skeleton that is more susceptible to fractures or breaks, these fractures can result in severe morbidity and even mortality,” he says. So, you’ll really need to avoid any exercise moves or sports that can decrease bone health and cause strain.

Here are the worst moves for people with osteoporosis—remember, it’s still important to be active and even build bone to mitigate symptoms. That means, strength training (which fortifies bones and muscles) and lower-impact exercises that protect the bones and joints.

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