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Topic	Biden sparks TERF war on twitter with gender discrimination order
kage_53 01/21/21 5:55:26 PM #112:	ThePopcornKing posted... hey man, all you gotta do to back that up is link the science saying after transitioning and being on hormones etc for a substantial amount of time where things like muscle mass and bone density change they still have a significant advantage. https://link.springer.com/content/pdf/10.1007/s40279-020-01389-3.pdf Given the maintenance of BMD and the lack of a plau- sible biological mechanism by which testosterone sup- pression might affect skeletal measurements such as bone length and hip width, we conclude that height and skeletal parameters remain unaltered in transgender women, andthat sporting advantage conferred by skeletal size and bone density would be retained despite testosterone reductions compliant with the IOCs current guidelines. This is of particular relevance to sports where height, limb length and handspan are key (e.g. basketball, volleyball, hand- ball) and where high movement efficiency is advantageous. Male bone geometry and density may also provide pro- tection against some sport-related injuriesfor example, males have a lower incidence of knee injuries, often attrib- uted to low quadriceps (Q) angle conferred by a narrow pelvic girdle. The pioneer work by Gooren and colleagues, published in part in 1999 [61] and in full in 2004 [62], reported the effects of 1 and 3 years of testosterone suppression and estrogen supplementation in 19 transgender women (age 1837 years). After the first year of therapy, testoster- one levels were reduced to 1 nmol/L, well within typical female reference ranges, and remained low throughout the study course. As determined by MRI, thigh muscle area had decreased by 9% from baseline measurement. After 3 years, thigh muscle area had decreased by a further 3% from baseline measurement (total loss of 12% over 3 years of treatment). However, when compared with the baseline measurement of thigh muscle area in transgender men (who are born female and experience female puberty), transgender women retained significantly higher thigh muscle size. The final thigh muscle area, after three years of testosterone sup- pression, was 13% larger in transwomen than in the transmen at baseline (p < 0.05). The authors concluded that testosterone suppression in transgender women does not reverse muscle size to female levels <cite>kage_53 posted [p:949764449] in Biden spar... [t:79252066]...</cite> <quote>ThePopcornKing posted... </cite> <quote>hey man, all you gotta do to back that up is link the science saying after transitioning and being on hormones etc for a substantial amount of time where things like muscle mass and bone density change they still have a significant advantage.</quote> https://link.springer.com/content/pdf/10.1007/s40279-020-01389-3.pdf Given the maintenance of BMD and the lack of a plau- sible biological mechanism by which testosterone sup- pression might affect skeletal measurements such as bone length and hip width, we conclude that height and skeletal parameters remain unaltered in transgender women, andthat sporting advantage conferred by skeletal size and bone density would be retained despite testosterone reductions compliant with the IOCs current guidelines. This is of particular relevance to sports where height, limb length and handspan are key (e.g. basketball, volleyball, hand- ball) and where high movement efficiency is advantageous. Male bone geometry and density may also provide pro- tection against some sport-related injuriesfor example, males have a lower incidence of knee injuries, often attrib- uted to low quadriceps (Q) angle conferred by a narrow pelvic girdle. The pioneer work by Gooren and colleagues, published in part in 1999 [61] and in full in 2004 [62], reported the effects of 1 and 3 years of testosterone suppression and estrogen supplementation in 19 transgender women (age 1837 years). After the first year of therapy, testoster- one levels were reduced to 1 nmol/L, well within typical female reference ranges, and remained low throughout the study course. As determined by MRI, thigh muscle area had decreased by 9% from baseline measurement. After 3 years, thigh muscle area had decreased by a further 3% from baseline measurement (total loss of 12% over 3 years of treatment). However, when compared with the baseline measurement of thigh muscle area in transgender men (who are born female and experience female puberty), transgender women retained significantly higher thigh muscle size. The final thigh muscle area, after three years of testosterone sup- pression, was 13% larger in transwomen than in the transmen at baseline (p < 0.05). The authors concluded that testosterone suppression in transgender women does not reverse muscle size to female levels </quote> ... Copied to Clipboard!
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