Very warm today, upper 80ºs but not real humid. I did my standard pre running workout with dynamic stretches and bands, focusing on the R leg I'm rehabbing. I did numerous drills and high knee running, which felt pretty good. I tried some short runs on turf to test out the knee but it's still not ready yet. Don't want to force it as I'm just 5 mo post op. I ran a few bleacher sprints and they felt fine. I could probably start running hills soon but I'm going to wait another couple weeks.
143.9 lbs after workout.
Afterward I did my usual interval workout on the bike:
4 x 440m w/ 2:30 rest - top speeds: 28.7, 28.5, 28.7, 28.2
It was the fastest such set I've done. I didn't save anything, went all out every time. Pushed HR to 173.
143.9 lbs after workout.
The high knee running felt great, and actually quite tiring. HR to 155. Might try some tempo intervals of high knee running.
One thing this break from running has done for me, dramatically improved my R foot arthritis. It feels virtually gone.
Your heart rate data looks much cleaner. No weird rise during the rest period, possibly because you aren’t lying down adding stress to the heart. No irregular spikes during the interval. What do you think?
ReplyDelete"lying down adding stress to the heart"?? I doubt that, but no... riding back to start then stopping for a drink. I recently dropped caffeine for a while due to the occasional premature ventricle contraction. Comes and goes.
DeletePVC’s are generally harmless. Lying down after intense exercise definitely stresses the heart. The mechanism is the sudden change to a supine position redistributes blood volume centrally, increasing venous return which in turn increases preload which increases stroke volume which causes blood pressure to spike. This was explained to me by my cardiologist after the Bruce protocol echo stress test. They have you lay down immediately upon failure and all the data collection is still ongoing. From 11 to 16.5 minutes systolic blood pressure was stable at 190 (appropriate for endurance athletes at max output) but it spiked to 230 when they had me lay down to take echo images, which they want to get within seconds of stopping. This is why the recommendation is to keep moving and not change positions. About your data, I’m really surprised you haven’t noticed and remarked on how much cleaner it is. Clearly it works fine for your cycling sprints, from this data I hypothesize the obvious inaccuracy (ha ha, teasing here) from your running data is probably from the foot strikes or arm swings adding noise. Data looks as expected and believable now.
ReplyDeleteYes Arm swing interference and impact vibrations from running can interfere with hr monitoring. Cycling is less intrusive in these matters since the limbs and body position are more stable
ReplyDeleteChest strap hrs are considered more precise.
The device also matters. I find my Fitbit to be more erratic and spiky for hr data during high intensity exercise but my Garmin to be more stable particularly when there are rapid hr changes.