When sitting, the weight is frequently placed upon the ischial tuberosity.
2.
Its origin is the superolateral aspect of the ischial tuberosity and it inserts on the semitendinosus.
3.
It gives twigs to the muscles attached to the ischial tuberosity and anastomoses with the inferior gluteal artery.
4.
Continuing down the posterior side, the ischial tuberosity is a thick, rough surfaced prominence below the lesser sciatic notch.
5.
Avulsion fractures occur where muscles are attached : anterior superior and inferior iliac spines, ischial tuberosities, and ischiopubic rami.
6.
Also, many seats are hard and wooden, without the cushion to prevent compression at the area of the ischial tuberosities.
7.
A lower seat may shift too much weight to the " seat bones " ( " ischial tuberosities " ).
8.
The seat, he said, should support the ischial tuberosities, the two bones at the bottom of the pelvis that bear the rider's weight.
9.
The short head may be absent; additional heads may arise from the ischial tuberosity, the linea aspera, the medial supracondylar ridge of the femur, or from various other parts.
10.
The studies have shown that wider saddles tend to increase penile blood flow while cycling, though wider seats also induce ischial tuberosities ), thus improving a cyclist's perineal blood flow.
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