... main part too. The joints are a major factor when performing movement because the joints hold the bone together securely but also give the rigid skeleton mobility. All of these systems work together to form movements (voluntary or involuntary) such as adduction, abduction, circumduction, rotation, flexion, extension for example. The two skeletal disorders which are going to be discussed in this essay are Rheumatoid Arthritis and Osteoporosis as these disorders limit the movement which leads to hindering exercise participation. Also these diseases mainly occur more in adult females than adult males. This assignment will be researching in detail the exercise movement of a Jab in Boxing and will be reflecting upon the bones, joints and muscles used to perform that activity. Task one Rheumatoid Arthritis Rheumatoid Arthritis is an inflammatory and autoimmune disease. It is a systemic disorder where inflammatory changes not only affect synovial joints but ...

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