How to Use Fit Cuffs

Fit Cuffs - BFR Training: Arm Cuff V3 - Attachment & Deflation
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Leg Cuffs V3 - Attachment - Inflaltion & Pressure Calibration
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Considerations Before Attachment – Read more
  • 1. Before using Fit Cuffs please have a look at the safety concerns at this sub-page BFR & Safety Concerns.

  • 2. Go to Fit Cuffs Training App at training.fitcuffs.com and use the “Calculate Pressure” module, to acquire a personalized pressure (mmHg) recommendation. We advise You to update the pressure (mmHg) as often as possible – See our page Web App Explained for additional information concerning the app. ⇩

  • 3. The Calcuate Pressure module is a convenient and valid alternative to utilizing pressures relative to Limb Occlusion Pressure (LOP) – Please check LOP by Bluetooth for more information concerning LOP and the Bluetooth Device. ⇩

  • 4. In order to use the Calculate Pressure module you must measure the corresponding circumference of your upper arm or upper thigh and please remember to do the measurement in a relaxed position.

General Instructions For Attachment & Deflation Of The Cuffs – Read more
  • 1. Before attachment – Ensure that the cuff is completely empty – deflated. – It is very important to deflate the cuffs after every session for optimal fitting the cuff subsequently! Please mind, You must use the Fit Manometer (pressure gauge) to deflate the cuff by turning the valve (wheel/cock) counter-clockwise. ⇩

  • 2. Attachment – Slide the cuff through the nylon loop and make sure the valve is facing downwards.
    For fast and convenient attachments, be aware of left and right version of your cuffs which is relevant for the Complete & Performance models. Please check the videos on this page to distinguish “left” & “right” versions. ⇩

  • 3. Tension of the cuff – Make sure to have a semi-snug attachment, so that 3-4 fingers can easily pass underneath the cuff.
    – loose-fitting cuffs will require higher pressure to restrict blood flow and may slide during exercise. A tight fitting cuff will inhibit muscle contractions and result in excessive pressure fluctuations during muscle contractions. ⇩

  • 4. Inflation – Close the valve on the Fit Manometer by turning it clockwise and attach the male connector to the female connector on the cuff. You will hear a distinct “click” when the Fit Manometer has been connected successfully. ⇩

  • 5. Calibration – For a proper fit and to avoid pressure drop during exercise you should “calibrate” the pressure, by contracting the relevant muscles several times while the Fit Manometer is still attached. Please repeat this pressure calibration to avoid pressure drop during exercise. The goal pressure should be measured in a complete resting state, by placing the weight on the opposite leg or resting the corresponding arm, respectively.
    “Please remember to Pressure Calibrate Before Training To Avoid Pressure Drop During Exercise!”

    Velcro strap placement for cylindrical like thigh shape vs cone

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    Remember to utilize the custom fit for the Leg Cuffs V3, as it can be slightly adjusted to the shape of the thigh

Troubleshooting – Struggling With Decreasing Pressures (⇩ mmHg) During Exercise Read more
  • If You’re struggling with pressure leak during exercise, please consider the various reasons for this issue and not an actual “air-leak”: ⇩

  • When initiating inflation of the cuff the vasculature and fluids underneath the cuff will be forced downstream. This effect will only exacerbate when contracting the corresponding muscles making the circumference of the limb smaller and thereby you will experience a drop in pressure. ⇩

  • The nylon material is semi-elastic and the initial slack of the velcro attachment will lengthen during the first muscle contractions. So, the overall circumference of the cuff will expand initially creating a pressure drop because of this small but significant elongation. ⇩

  • Sufficient “calibration” is simply imperative to attenuate pressure drop as described above. Contract the relevant muscles several times while the Fit Manometer (pressure gauge) is still attached and remember to repeat this procedure accordingly. It might take about 1-2 minutes to get the pressure stable before exercising. ⇩

  • Please also consider, that even though the pressure calibration has been done accordingly, You will yet experience a drop in pressure if the cuff slides distally. Avoiding the cuffs sliding is imperative and can be fixed if You remember to completely deflate the cuffs before You detach them, considering later use. ⇩

  • If the initial pressure calibration has been implemented, but You’re still experiencing decreasing pressure. We advise You to reassess the pressure during exercise immediately after the first set or interval.

If you would like a detailed user manual for Fit Cuffs® Training System please send this request at info@fitcuffs.com. For different Training Protocols see How When & Why BFR & The Complete BFR Guide


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