I FOUND OUT SOMETHING NEW TODAY!
So, yesterday in my post about Monday's upcoming S.I.T. challenge, I mentioned that the formula for you to find your target heart rate to get to for the 30 second sprints is 220 − age × 0.85... This is the classic, old-school been used forever in gyms, and what I learned in personal training school years back.... Well, today i learned theres a new and updated version!!!! But first..... Why it’s still ok to use this formula above: 💪🏽Easy to remember 💪🏽Conservative enough for most people 💪🏽Still useful for general guidance BUT!!!! Today I learned why its actually not "ideal" for women over 35!!🤯 💪🏽It often overestimates max HR in women 💪🏽It doesn’t account well for hormonal shifts (perimeno/menopause) 💪🏽Can push some women a little too hard SOOOOOOOO.... 🧠Here is the More Accurate (Women 35 + Friendly) Formula 206 − age x 0.88 Apparently this one tends to: 💪🏽Better match how women’s hearts respond to effort 💪🏽Feel more realistic during SIT 💪🏽Reduce unnecessary stress load 🔍 Quick Comparison Example (I am age 48) 220 − 48 = 172 x 0.85 = 146 bpm 206 − 48 =158 x 0.88 = 139 bpm The Difference is only 7 bpm, not huge — but will be meaningful over time. So either formula you choose is ok - but I know which one i'm choosing!! ✨ Important Reminder before we start next week!!!!!! S.I.T. is meant to be short and intentional, not exhausting. Always: ✅Make sure you are cleared by a doctor before you do something that will push your heart like this will! ✅Take full recovery between rounds (aka let your heart rate completely come down between sprints) ✅Stop if you feel dizzy, lightheaded, or unwell ✅Modify impact as needed ✅Rest extra on high-stress or low-sleep days This challenge is about working with your body, not pushing through it 💜 Stay tuned for more each day leading up for rules, prep etc!! SO very excited to see you there!