Dart throwing can cause chronic injuries such as dart elbow, which consists of swelling around the tip of the elbow. More severe cases will look red and inflamed. (This answer provided for NATA by the California University of Pennsylvania Athletic Training Education Program.)
Patrick A Noel, MD
Specialty: Orthopedic Surgery
Location and Office HoursDrs Noel & Raiford
Greenbelt, MD 20770
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- What injuries can be caused by throwing darts?
What does the pelvis do?
Rick Olderman, Physical Therapy, answeredFirst, the pelvis dictates how the spine rests and moves. The pelvis is the keystone of spinal mechanics. Second, the way the pelvis is oriented also affects the abdominal muscles' ability to stabilize the spine. And third, the way we bend and straighten our spine both affects and is affected by the pelvic and abdominal function.
The pelvis is composed of three bones: the sacrum and two ilia. Each ilium houses the hip socket into which the thigh bone connects to form the hip joint. Where the sacrum meets the ilia is called the SI joint ("S" is the sacrum and "I" is the ilium). The vertebrae are stacked on the sacrum, and their movement is dictated by the sacrum's orientation -- and the sacrum moves based on how the ilia move, and the ilia move based on both how the hip joints move and some other muscles that attach to them. So to make things simple, I just say that the spine moves based on how the pelvis moves.
When the pelvis is in a normal (or neutral) position and moves well, the spine is very happy. It has its normal lordotic curve (the natural inward curve of the lower back), and it bends and straightens easily.
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How much does bone mass decrease as I age?
David Slovik, Endocrinology, Diabetes & Metabolism, answeredDuring the first 20 years of life, new bone is built more quickly than old bone is removed. By the late teens, most bone formation has already occurred. By age 20, most women have already built 98% of their skeletal mass, and by age 30 most men and women reach their peak bone mass.
Among women, bone mass usually remains level until the onset of menopause, when bone is lost rapidly. But many women also start to lose bone in the years just preceding menopause. While the pace of bone loss slows after the first few years of menopause, women continue to lose bone. In the five to seven years after menopause, women can lose up to one-fifth of their bone mass. Bone loss usually begins later for men -- in their 50s -- and progresses more slowly. But by ages 65 to 70, men and women lose bone at the same rate.Helpful? 1 person found this helpful.
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