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Heart Rate

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The heartbeat signal: what your heart rate can reveal about health and longevity
health12 days ago

The heartbeat signal: what your heart rate can reveal about health and longevity

A recent review highlights that heart rate reflects cardiovascular health, metabolic rate, and autonomic nervous system activity. Resting heart rate is linked to lifespan, with lower rates (often seen in fit individuals) associated with longer survival, though extremes can signal issues in non-athletes. Maximum heart rate declines with age and varies by person, so individualized formulas or field tests are better than generic rules for setting training zones. Heart rate reserve (max minus resting) helps tailor workouts, while heart rate variability remains controversial and should not be the sole training guide. For measurements, use reliable monitors (chest straps over many wearables) and, above all, listen to how you feel and log your training to decide when to train.

via BikeRadar|
#health#heart-rate#heart-rate-variability
Underwater Heart Flex: How Blue Whales Lunge for Prey
science21 days ago

Underwater Heart Flex: How Blue Whales Lunge for Prey

Five blue whales and four humpbacks were tagged to measure heart rates during lunge-feeding; results show heart rates rise to about 21.9 bpm (blue whales) and 28.2 bpm (humpbacks) during lunges and then slowly fall between lunges, indicating a mix of anaerobic energy and rapid recovery that enables feeding while conserving oxygen. Resting rates were as low as 18.5 bpm, highlighting a shared metabolic pattern and potential health indicators for whales amid changing prey and noise pollution.

via ScienceAlert|
#blue-whales#foraging#heart-rate
Horses Reveal Hidden Stress as Wolves Appear on Silent Video
science1 month ago

Horses Reveal Hidden Stress as Wolves Appear on Silent Video

Ohio State researchers found horses instantly recognize predators like wolves on a silent video, triggering rapid heart-rate increases even as they appear calm and unmoved. The stress is greater in males and dominant horses, suggesting internal agitation may accompany outward composure. Eye movement data imply quick cognitive assessment within 20 seconds, challenging the idea that prey animals only panic and run. Findings have welfare and rider-safety implications, especially around canines.

via The Times of India|
#heart-rate#horses#predator-recognition
Walk to a stronger heart: pace, hills and short bursts boost cardio benefits
health-and-families1 month ago

Walk to a stronger heart: pace, hills and short bursts boost cardio benefits

Experts say walking counts as cardio when you raise your heart rate into aerobic zones: aim for a brisk pace or hills to reach about 70–90% of your max heart rate (roughly 220 minus age) with a cadence around 100 steps per minute for moderate intensity. For extra benefit, add short bursts of higher intensity (1–4 minutes at ~80% max HR). Even short walks can lower blood pressure and blood glucose and reduce all-cause mortality, while longer easy walks are fine for stress relief. The walk’s quality matters as much as its length.

via The Independent|
#cardio#exercise#health-and-families
When a Walk Turns Into Cardio: How Pace and Hills Elevate Your Heart Health
health1 month ago

When a Walk Turns Into Cardio: How Pace and Hills Elevate Your Heart Health

Walking offers cardiovascular benefits, and whether it counts as cardio depends on how much your heart rate rises. Brisk walks, hills and short high‑intensity bursts can place you in aerobic zones and boost heart health, while casual strolls may not reach training levels. Large studies link more walking with lower mortality and cardiovascular risk—5,000 steps daily is associated with lower risk, and every extra 500 steps reduces cardiovascular death risk by about 7%. For max benefit, track your heart rate to hit zones 2–4, add intervals and elevation changes, and weave walking into a broader program that includes resistance training; even without HR tracking, moving regularly improves health.

via USA Today|
#cardio#cardiovascular-health#health
Fitbit Air: solid heart-rate tracking, but calories miss the mark
technology1 month ago

Fitbit Air: solid heart-rate tracking, but calories miss the mark

A ZDNET test compared the Fitbit Air to a Polar H10 chest strap during a gym workout. Heart-rate data were fairly close with minor lag, but calories burned were consistently underestimated—about 12% during treadmill work and up to ~30% during strength training. The results reflect how wrist wearables can miss rapid heart-rate changes and rely on formulas that combine HR with other factors, so use HR data for training and calorie estimates as rough figures. The author cautions that two tests aren’t enough to draw sweeping conclusions about overall accuracy.

via ZDNET|
#calorie-burn#fitbit-air#fitness-tracker
AirPods Pro 3 Narrow the Heart-Rate Gap, Yet Apple Watch Remains King of Accuracy
technology2 months ago

AirPods Pro 3 Narrow the Heart-Rate Gap, Yet Apple Watch Remains King of Accuracy

New tests show AirPods Pro 3 track heart rate with surprising accuracy—averaging around 1.67% error against a Polar chest strap—nearly matching many smartwatches, but the Apple Watch Series 11 still offers the best precision; earbuds are becoming a credible secondary health tracker and hint at a future where wearables beyond the wrist lead heart-rate data collection.

via CNET|
#airpods-pro-3#apple-watch#health-tracking
10km Showdown: Fitbit Air vs Apple Watch Ultra 3 on heart rate and calories
technology2 months ago

10km Showdown: Fitbit Air vs Apple Watch Ultra 3 on heart rate and calories

On a 10km run, the author compares Google's new screenless Fitbit Air with the Apple Watch Ultra 3, using a Polar H10 chest strap as a backstop (which malfunctioned). Both devices rely on optical HR to estimate calories, but the Air piggybacks on the iPhone’s GPS (no built‑in GPS) while the Ultra 3 has built‑in GPS, so Apple is expected to be more accurate for distance metrics. Health data from Google Health and Apple Health aren’t linked in this test. The piece also touches on Fitbit’s app changes and the Air’s AI Health Coach, with the run results shown in a navigable on‑page chart detailing heart rate, calories, and pace differences.

via TechRadar|
#apple-watch-ultra-3#calories#google-fitbit-air
Seven essential first steps to set up Google's Fitbit Air
wearables3 months ago

Seven essential first steps to set up Google's Fitbit Air

Google’s Fitbit Air is a $99, screenless fitness tracker that works with the Google Health app. This seven‑step setup guide walks you through enabling alarms, setting wrist preference to improve step accuracy, adjusting vibration, sharing heart‑rate data with apps/equipment, selecting a main fitness goal, configuring heart‑rate warnings, and turning on AFib irregular rhythm alerts—delivering a quick, subscription‑free path to start tracking sleep and workouts.

via Android Central|
#afib-detection#alarms#fitbit-air
Rectal exam unexpectedly slows AFib heartbeat in case report
health3 months ago

Rectal exam unexpectedly slows AFib heartbeat in case report

A 29-year-old man with atrial fibrillation experienced a racing heartbeat at hospital admission. A routine digital rectal exam, combined with a Valsalva maneuver, is thought to have stimulated the vagus nerve and slowed his heart rate to about 80 bpm, with the irregular rhythm resolving and not returning months later. Standard AFib treatments typically involve medications or electrical cardioversion; this rectal-exam approach is not established therapy and requires more research. The patient was also prescribed an anticoagulant to prevent clots.

via Yahoo|
#arrhythmia#atrial-fibrillation#health
Samsung Sensor OLED Unites Privacy Display with Heart-Rate Sensing in a 500ppi Panel
technology3 months ago

Samsung Sensor OLED Unites Privacy Display with Heart-Rate Sensing in a 500ppi Panel

Samsung Display’s Sensor OLED Display, unveiled at SID 2026, pairs a 6.8-inch 500ppi OLED panel with built-in privacy via Flex Magic Pixel and integrated organic photodiodes that can measure heart rate (and potentially blood pressure and fingerprints). The 33% jump in pixel density over last year’s 374ppi version matches modern flagship sharpness, leveraging a co-deposition process to fuse OLED and OPD elements in one layer, a technology also seen in the Galaxy S26 Ultra’s Privacy Display.

via SamMobile|
#heart-rate#organic-photodiodes#privacy-display
Unlock Your Workout: The Heart-Rate Zones That Maximize Fitness
health4 months ago

Unlock Your Workout: The Heart-Rate Zones That Maximize Fitness

A concise guide to using heart rate to tailor workouts: understanding resting and max heart-rate, aiming for about 50–85% of max HR for general fitness, with zone guidance for walking, steady-state cardio, weightlifting, and HIIT. It also warns about signs of overtraining or bradycardia, and offers practical tips (diaphragmatic breathing, warm-ups, hydration, sleep) and the use of wearables to track progress and improve efficiency.

via GQ|
#exercise#health#heart-rate
Zone 2 cardio: the sustainable fat-burn pace experts favor over HIIT
health4 months ago

Zone 2 cardio: the sustainable fat-burn pace experts favor over HIIT

Experts are embracing Zone 2 training—maintaining roughly 60-70% of your maximum heart rate (max HR is commonly estimated as 220 minus your age)—as a sustainable path to fat loss and heart health. Zone 2 workouts like brisk walking, steady cycling, swimming, or easy jogging stay oxygen-rich and promote fat as fuel longer than high-intensity efforts. While HIIT can yield faster VO2 max gains, meta-analyses show similar or variable effects on body fat when comparing HIIT and steady aerobic training. Athletes often mix intensities, commonly with an 80/20 split favoring Zone 2 most of the time, and overreliance on Zone 2 alone may limit improvements. A smartwatch or fitness tracker can help you stay in the right zone.

via Daily Mail|
#endurance-training#fat-burning#health