https://t.co/iK6vmw9ixz
Here follows my quick first thoughts of Roberts et al., 2020.
I predict this paper will generate much discussion over the coming weeks and months.
Highly-active people, albeit not specifically-trained athletes. Mean age 26.6 yrs +/- 5.5 yrs.
The performance of TW/TM over 30 months of treatment was retrieved from official records and compared with pre-treatment “baseline” performance.
(I think I’m reading that correctly...)
TW were weaker than control men (CM) pre-treatment and throughout transition. The authors speculate this may be explained by aversion to upper body training and its aesthetic outcomes.
TW were equivalent to CM pre-treatment and to 2 yrs of transition. The authors argue that there is no clear aversion to abdominal training and its effect on body shape.
This is where it gets really interesting. While TW clearly lose speed from baseline, they appear to recover some speed after 2yrs.
Note: ‘weak’ is relative. These females are pretty hardcore :)
The push-up/sit-up data are interesting. These fitness tests come with targets that must be reached and the targets are different for males and females. My first question is therefore: after 2 yrs of transition, are TW are being set female targets?
Is it possible the apparent sharp drop off in performance is actually an artifact of the test conditions?
Are CM not bothering more than necessary, while TM go the extra mile? The authors also speculate that, again for aesthetic reasons, TM may train - hard - and thus, genuinely outperform CM. I’m not convinced.
Could be mirrored in TM?
1. TW are genuinely losing all their muscular endurance advantage after 2 yrs, in which case the running data shows it is impossible to undo the benefits of a male skeleton.
I’d argue that, when viewed as part of the ever-increasing body of knowledge, there is a retained strength advantage *and* unaltered skeletal advantage.
Thus, this study presents far more robust running data than that of Harper 2015.
More from Emma Hilton
@Hogshead3Au @BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 OK.
Fitness data from over 85k AUS children aged 9–17 yrs showed that, compared with 9 yr females, 9 yr males were 9.8% faster in sprints, 16.6% faster over 1 mile, could jump 9.5% further, could complete 33% more push-ups in 30 s and had 13.8% stronger grip.
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 Here is my full description of that data.
Example:
1.6km timed run (CV endurance)
The *best* 17 yr old girls are matched by *average* 17 yr old boys, and beaten, by some measure, by the best 9 yr old
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 Male advantage of a similar magnitude was detected in a study of Greek children, where, compared with 6-year-old females, 6-year-old males completed 16.6% more shuttle runs in a given time and could jump 9.7% further from a standing
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 In terms of aerobic capacity, 6- to 7-year-old males have been shown to have a higher absolute and relative (to body mass) VO2max than 6- to 7-year-old
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 Pre-puberty performance differences are not negligible, and could be mediated, to some extent, by genetic factors and/or activation of the hypothalamic–pituitary–gonadal axis during the neonatal period, sometimes referred to as “minipuberty”.
Fitness data from over 85k AUS children aged 9–17 yrs showed that, compared with 9 yr females, 9 yr males were 9.8% faster in sprints, 16.6% faster over 1 mile, could jump 9.5% further, could complete 33% more push-ups in 30 s and had 13.8% stronger grip.
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 Here is my full description of that data.
Example:
1.6km timed run (CV endurance)
The *best* 17 yr old girls are matched by *average* 17 yr old boys, and beaten, by some measure, by the best 9 yr old
Here is summary data from Catley and Tomkinson, 2012, who collated performance data from 85347 Australian schoolchildren aged 9-17 years old. pic.twitter.com/qKdxqywpoq
— Emma Hilton (@FondOfBeetles) November 19, 2020
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 Male advantage of a similar magnitude was detected in a study of Greek children, where, compared with 6-year-old females, 6-year-old males completed 16.6% more shuttle runs in a given time and could jump 9.7% further from a standing
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 In terms of aerobic capacity, 6- to 7-year-old males have been shown to have a higher absolute and relative (to body mass) VO2max than 6- to 7-year-old
@BARBARABULL11 @boysvswomen @cbrennansports @Martina @devarona64 Pre-puberty performance differences are not negligible, and could be mediated, to some extent, by genetic factors and/or activation of the hypothalamic–pituitary–gonadal axis during the neonatal period, sometimes referred to as “minipuberty”.
More from Transgender
Okay #trans allies - what are you going to do to help us? Actual, concrete actions? What will you do:
- today?
- over the course of a week?
- before the end of the year?
- throughout 2021?
I want to hear about it - and I want you to spread the word to other cis people.
Some ideas, if you're stuck. If you have the money, donate to one (or all) of these fundraisers/organisations:
1. @GoodLawProject Transgender Lives
2. A trans healthcare/mutual aid fund:
- @BlkTAlliance
- @BlackTransUK
- https://t.co/4sIT4GJ08r
- @transMAMCR
- @SWTNMutualAid
3. @Genderintell, to get help to the young trans people under attack right now.
4. Educate yourself about #trans lives so that you can confidently spread that knowledge amongst your cis networks. Buy a trans-authored book today, read it cover to cover, then PASS IT ON TO A CIS FRIEND. Is there a trans resource you love? Give it to ALL your cis friends.
- today?
- over the course of a week?
- before the end of the year?
- throughout 2021?
I want to hear about it - and I want you to spread the word to other cis people.
Some ideas, if you're stuck. If you have the money, donate to one (or all) of these fundraisers/organisations:
1. @GoodLawProject Transgender Lives
2. A trans healthcare/mutual aid fund:
- @BlkTAlliance
- @BlackTransUK
- https://t.co/4sIT4GJ08r
- @transMAMCR
- @SWTNMutualAid
3. @Genderintell, to get help to the young trans people under attack right now.
4. Educate yourself about #trans lives so that you can confidently spread that knowledge amongst your cis networks. Buy a trans-authored book today, read it cover to cover, then PASS IT ON TO A CIS FRIEND. Is there a trans resource you love? Give it to ALL your cis friends.
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The YouTube algorithm that I helped build in 2011 still recommends the flat earth theory by the *hundreds of millions*. This investigation by @RawStory shows some of the real-life consequences of this badly designed AI.
This spring at SxSW, @SusanWojcicki promised "Wikipedia snippets" on debated videos. But they didn't put them on flat earth videos, and instead @YouTube is promoting merchandising such as "NASA lies - Never Trust a Snake". 2/
A few example of flat earth videos that were promoted by YouTube #today:
https://t.co/TumQiX2tlj 3/
https://t.co/uAORIJ5BYX 4/
https://t.co/yOGZ0pLfHG 5/
Flat Earth conference attendees explain how they have been brainwashed by YouTube and Infowarshttps://t.co/gqZwGXPOoc
— Raw Story (@RawStory) November 18, 2018
This spring at SxSW, @SusanWojcicki promised "Wikipedia snippets" on debated videos. But they didn't put them on flat earth videos, and instead @YouTube is promoting merchandising such as "NASA lies - Never Trust a Snake". 2/
A few example of flat earth videos that were promoted by YouTube #today:
https://t.co/TumQiX2tlj 3/
https://t.co/uAORIJ5BYX 4/
https://t.co/yOGZ0pLfHG 5/