HEART RATE

This study tested whether painting roofs with a special reflective coating can help people in Niue stay healthier as temperatures rise. 187 adults wore smartwatches to track their heart rate, sleep, and physical activity. The goal was to see if cooler homes lead to better heart h…

This study tested whether briefly cutting off blood flow to the legs (ischemic preconditioning) before resistance exercise could lower heart strain in women aged 60 and older. Thirty physically active older women did two exercise sessions—one with the real cuff procedure and one …

This study tested whether a 10-minute daily mindfulness session via a smartphone app could improve sleep and lower stress in healthy adults. 81 participants wore an Ōura Ring to track sleep and heart rate, and were randomly assigned to either the mindfulness program or a waitlist…

This study looked at whether adding acupuncture to standard recovery care helps colon cancer patients get their digestion back on track faster after surgery. 70 patients were split into two groups: one got standard care, the other got standard care plus acupuncture sessions. Thos…

This study compares two methods of placing a breathing tube during general anesthesia without using opioid painkillers. The goal is to see which method—fiberoptic or direct laryngoscopy—causes less change in heart rate and blood pressure. Researchers will study 90 adults aged 18 …

This pilot study tests whether wearing a custom-fit thermoformable mouthguard affects neck posture, heart rate, and running performance in non-professional runners. Ten healthy adults aged 18–25 who run regularly will have their craniovertebral angle and heart rate measured with …

This crossover trial in 23 healthy adults asks whether heart rate at key ventilatory thresholds differs between cycling and treadmill running. Each participant performs both exercise tests in random order. The goal is to see if a fixed heart rate bias exists between the two modal…

This study aimed to make heart rate monitors more accurate for people with heart conditions. Researchers collected data from 138 participants, including cardiac patients and athletes, using Fitbit and Polar devices over 13 weeks. The goal was to remove false readings and develop …

This completed study tested three different intensities of gentle neck movements designed to stimulate the vagus nerve in 128 healthy adults. Researchers measured changes in heart rate, balance, pain sensitivity, and digestion (via stool samples). The goal was to find the best 'd…

This study tested whether using an indoor air purifier changes health measures like heart rate, sleep, and oxygen levels. 42 healthy adults wore Apple Watches while using a real or fake (sham) air purifier at home. The goal was to see if cleaner air makes a short-term difference …

This study looked at how nicotine pouches affect heart rate and heart electrical activity (ECG) in 20 adults who already use nicotine. Participants used high-dose, low-dose, or placebo pouches for 20 minutes. The goal was to see if nicotine pouches cause changes that could mean h…

This study tested whether Shen.AI software can accurately measure heart rate, breathing rate, and blood pressure by analyzing video of a person's face. 132 adults participated, and their results were compared to standard medical devices like ECG and blood pressure cuffs. The goal…