Bruce Rogers @bjrmd

muscleoxygentraining.com Florida, USA Joined July 2009

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Bruce Rogers @bjrmd

2 weeks ago

An informative look at why blood flow restriction training works from a molecular/hormonal viewpoint frontiersin.org/journals/physi…

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@OPro00 @the5krunner Very correct! The concept may be partly valid (other things besides "strain" cause ST cgs), but the signal will be very noisy at high intensity and we don't have multiple lead confirmation.

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Bruce Rogers @bjrmd

6 months ago

@lmagallego Very well done! Is the backend similar to alphaHRV?

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Bruce Rogers @bjrmd

6 months ago

@neuromanter Yes, so has my wife (she is doing it too). The La thresholds did increase after 6 wks, but not 12 wks, but CP did at both. I don't have an explanation but will repeat tests again in 3 mos.

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Bruce Rogers @bjrmd

6 months ago

New post: 3 months of cycling blood flow restriction training - outcomes including critical power boost tinyurl.com/nyuddzpv

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Bruce Rogers @bjrmd

6 months ago

New post: Outcomes after 3 months of training with cycling blood flow restriction tinyurl.com/nyuddzpv

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Bruce Rogers @bjrmd

9 months ago

New post: Performance changes from 6 weeks of cycling blood flow restriction training (Power stats and lactate thresholds) tinyurl.com/ycy5mbhu

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Bruce Rogers @bjrmd

10 months ago

Better journal link for full text (thanks @MuriasLab )- rdcu.be/eNKrI

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Bruce Rogers @bjrmd

10 months ago

New article: Validation of Fatmaxxer DFA a1 and HRV thresholds. Thanks to co-authors @MuriasLab and @FleitasPaniagua and of course @IanDPeake for writing this outstanding app. Post with full text - tinyurl.com/24rj5dmf Journal link - tinyurl.com/336jh6ez

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Bruce Rogers @bjrmd

10 months ago

@JimGalanes I'm using the Saga. It's not the cuff per se; it's the ischemia that ramps up over time. I have been gradually acclimating, which has also been reported. They are 10 cm which is preferable to narrow with respect to surface pressure needed for occlusion.

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Bruce Rogers @bjrmd

10 months ago

New post - Implementing BFR during Cycling - a practical guide and illustration of metrics (DFA a1 and SmO2) monitoring - tinyurl.com/3a9ra5rc

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Bruce Rogers @bjrmd

10 months ago

@JimGalanes Many studies do that, but for me the pain is too much and DVT risk too high with near 30min under pressure. My hypothesis was that HR, lactate, SmO2 and DFA a1 would point to strong metabolic effects anyway (which they did). BTW I am an MD (endocrinology) x 40 yrs😀

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Bruce Rogers @bjrmd

10 months ago

@willkirousis @JimGalanes Very much appropriate for those with minor injuries (knee tendonitis, small meniscal tears that don't need surg, etc). For the "pros" in great shape - no, for the rest of us who have trouble doing 10 Wingates in a row, it may be of benefit (La+, cap density, type 2 fibers)

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Bruce Rogers @bjrmd

10 months ago

New post - Blood flow restriction, effects on SmO2, DFA a1 and HR. The first of several planned. This is an intro to BFR use during cycling and some of my personal data. tinyurl.com/28sjske5

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Bruce Rogers @bjrmd

11 months ago

@ekgpress Very important point made, thanks, Ken:

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Bruce Rogers @bjrmd

11 months ago

@the5krunner The sacrifices we make for science......

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Bruce Rogers @bjrmd

11 months ago

Can optical PPG accurately measure DFA a1 during exercise? See tinyurl.com/2s3hmrtm for a look at the Polar Verity Sense.

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Bruce Rogers @bjrmd

11 months ago

@the5krunner If you want an idea of how "noisy" the signal is, use Polar Sensor Logger on the wrist vs upper arm vs forehead for a similar activity. The contrast is huge and explains (in part) the difficulties with PPG interference. No algorithm can correct such distortion/loss of data.

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Bruce Rogers @bjrmd

11 months ago

@youpmelone There are only 2 validated devices for a1 (other than gold standard, high resolution ECG), the Polar H10 (as RR output) and the Movesense Medical ECG (as ECG, not RRs). You will need Kubios for the MS ECG to get a1 values. mdpi.com/1424-8220/22/5…

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Bruce Rogers @bjrmd

a year ago

New post - An annotated conversation with ChatGPT (V5/Thinking) about DFA a1 and exercise. I critique the responses, which were for the most part pretty good. tinyurl.com/b3fujpph