14/02/2020
Osteoporosis and Exercise
Osteoporosis is a condition in which bones become weak and brittle – significantly increasing the chance of fracture. According to the International Osteoporosis Federation, in Australia 42% of Men and 51% of women over the age of 60 are Osteoporotic or Osteopenic (i.e. the midpoint between healthy bones and osteoporosis). The cost of Osteoporosis to Australians is predicted to be 3.84billion per year by 2022 and is ever growing.
Non-modifiable risk factors include age and genetics. But there are several modifiable risk factors: poor diet, low calcium/vitamin D intake, smoking, alcohol consumption, and certain medications can all increase the rate of bone deterioration. In recent years the evidence for the use of exercise in preventing and managing Osteoporosis has become overwhelming. Exercise has been shown to not only halt bone deterioration, but to even increase bone density in those at risk .
However, we are not talking about traditional forms of exercise e.g. walking, cycling, swimming, or even your average gym program. Whilst all great for one’s health, these activities do not provide a significant enough stimulus to bone that will result in a sufficient adaptive response. That is, we require more significant tugging/pushing on bone and much greater ground reaction forces than those elicited in the above activities. Such an effect can only be achieved via Progressive Strength Training and High Impact Training.
A 2018 study done on postmenopausal woman with low bone mass, led by researchers at Griffith University, provides very strong evidence that Progressive Strength Training and High Impact Exercise is needed to prevent and manage Osteoporosis. Using the big three strength movements (Deadlift, Squat, and Overhead Press) along with a high impact Jumping protocol, this study showed incredible results right across the board. It also demonstrated that such exercise is very safe (regardless of age!), provided it is programmed and supervised by an Exercise Specialist.
At Zen we have ongoing small group classes specifically aimed at increasing bone strength for the over 60 population. The classes are affordable, never have more than 6 people, and will always be devised and directly supervised by an Accredited Exercise Physiologist.
References:
Iofbonehealth.org. (2017). International Osteoporosis Foundation. [online] Available at: https://www.iofbonehealth.org/
Watson SL, Weeks BK, Weis LJ, Harding AT, Horan SA, Beck BR (2018) High-intensity resistance and impact training improves bone mineral density and physical function in postmenopausal women with osteopenia and osteoporosis: the LIFTMOR randomized controlled trial. J Bone Miner Res 33(2):211–220. https://doi.org/10.1002/jbmr.3284