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Aging refers to the physiological changes that occur in the human body from the attainment of adulthood, and ending in death. These changes involve a decline of biological functions, and are accompanied by psychological, behavioural, and other changes. Some of these changes are quite obvious, while others are subtle.[1] The Aging Bone[edit | edit source]Bones undergo a lifelong process of remodeling – mature bone tissue is removed and new bone tissue is formed. Bone remodeling is a highly regulated process that maintains a balance between bone resorption and formation, thus maintaining skeletal integrity.[2] This balance changes with increasing age, resulting in loss of bone tissue. The ageing bone has reduced mineral content, and is prone to osteoporosis – a condition in which bones are less dense, more fragile, and prone to fractures.[3] As people age the rate of bone resorption by osteoclast cells (multinucleated cells which contain mitochondria and lysosomes that is responsible for bone resorption) exceeds the rate of bone formation so bone weaken.[4] And this all happens due to:
Effects of Changes in Aging Bone[6][edit | edit source]
Ageing Joints[edit | edit source]Joint motion becomes more restricted and flexibility decreases with age because of changes in tendons and ligaments. Modifiable Risk factors for Bone loss in Aging Bone[9][edit | edit source]Non-Modifiable Risk Factor for Bone loss in Aging Bone[edit | edit source]Prevention[edit | edit source]Exercise is important for preserving bone density, however care must be taken to avoid high-impact exercises and exercises that present the risk of falling. Useful exercises include: A healthy diet, including adequate dosage of Vitamin D and Calcium, is also useful for preserving bone mass. And it is important to limit coffee, alcohol and tobacco consumption as they may have deleterious effect on bone mineral density[10][11]. For more see the informative osteoporosis page. Exercise and Ageing[edit | edit source]Exercise is wonderful for health — but to get gain without pain, you must do it wisely, using restraint and judgment every step of the way. Here are a few tips:
It is important to note that in other to improve bone mineral density it requires combination of several types of exercises majorly resistance training. Kawao & Kaji [13] noted that while in healthy bone resistance training maintains and improves bone mineral density(BMD)and bone strength, however, in osteoporosis patients it takes resistance training with other types of exercises to maintain BMD. References[edit | edit source]
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