• support@fourthfrontier.com
  • Does anybody know which activity is best to use for a Crossfit workout? I’ve been using Other, is that OK?

    Profile Photo liked this
    1 Comment
  • Profile picture of CoachTerry

    CoachTerry is feeling Determined

    Meditation this AM, little walk in the fresh air with the wife and dog; great start to the day

    Profile PhotoProfile PhotoProfile Photo liked this
  • Is body shock as given by the device a combination of impact forces from the feet hitting the ground and physiological forces within the body such as vascular and muscular problems?

    2 Comments
    • Body Shock is measured by the accelerometers/IMU on the device and is related to a concept called Peak Loadring rate in Sports science. It has to do with the impact forces of the feet hitting the ground!

  • Ordered my device on Friday. Looking forward to trying it soon. I have an extremely rare progressive snd incurable neurological condition Superficial Siderosis. Very fit and active. I have a Kardia 6 lead ECG device which I use regularly. Only heart problems high BP.

    Profile PhotoProfile Photo liked this
    1 Comment
  • Two weeks in: interesting gadget. I’m a fit, heathly, active 55 year old cyclist (RHR 50, maxHR ~180, normal blood pressure, BMI 21). During my 1-2 hour daily workouts on Zwift, my heart rate is typically in the yellow zone with a few excursions above. I see nice regular rhythms (by eye anyway, no tools provided to analyse), pretty low strain…Read More

    Profile Photo liked this
    1 Comment
    • That’s great to hear Mark. As you age, it’s not uncommon for individuals to have a few early beats. However, if they’re increasing with exercise or you are symptomatic they may warrant getting checked. Please consult a health expert with your data to ensure you’re exercising safely!

  • Load More Posts