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  1. #1
    Senior Member CommuteCommando's Avatar
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    Question for women HRM users.

    I work for a company that makes supplied-air hazmat suits. A product we need to test is a breather helmet with a built in ventilation fan. OSHA requires we test the device with human subjects, male and female. Our plan is to put them on a tread mill and run them up to several cardio levels, based on HR, then test for CO2 levels inside the respirator at each level.

    My question is do HRM chest straps work in the presence of under-wire bras? We will be using some female employees as test subjects, and do not want to have to dictate to them what kind of undergarments to wear.
    As much as you paid for that Beemer [Mercedies, Audi, Escalade], I'm surprised it didn't come equipped with turn signals.

  2. #2
    Administrator CbadRider's Avatar
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    I've never worn one with an underwire bra, but I don't see why it wouldn't work. The monitor chest straps are usually plastic or fabric and have the electrodes embedded on the side worn next to the skin. The bra would be on top of the strap, on the nonconductive side.

    If you're worried, you could always have the women wear an exercise bra. That might be more comfortable on a treadmill.
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  3. #3
    Senior Member Looigi's Avatar
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    Agree it shouldn't be an issue, but FWIW, there are a couple of optical based sensors that measure heart rate from blood flow in the wrist:

    http://www.dcrainmaker.com/2013/10/i...ts-adidas.html
    http://www.dcrainmaker.com/2013/02/m...-smartant.html

  4. #4
    Senior Member CommuteCommando's Avatar
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    Thanks for the answers. We found a strapless wrist model. Our test subjects generally come from our employee pool, come in a variety of shapes and sizes and sports bras are not an option for some.
    As much as you paid for that Beemer [Mercedies, Audi, Escalade], I'm surprised it didn't come equipped with turn signals.

  5. #5
    Senior Member Looigi's Avatar
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    The non-optical wrist HRMs I've seen usually require that you touch and hold a contact on the wrist strap with the opposite hand to get a reading. Is this the type you plan to use?

  6. #6
    Senior Member CommuteCommando's Avatar
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    Got this one. http://www.mioglobal.com/Shop/MIO-Al...tID=1&DeptID=1 It appears to be continuous, which we need since we will have to time sync the data to CO2 readings.
    As much as you paid for that Beemer [Mercedies, Audi, Escalade], I'm surprised it didn't come equipped with turn signals.

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