Participants attended an orientation session via Zoom that detailed information and study protocols for participants. This included a brief overview of how to wear a heart rate monitor and the foundations of the asanas (postures). The recording was available for those who could not attend live via Zoom. They were randomly assigned to intervention arms (see Table 1 ) and then informed of their times/days when they picked up their equipment. Participants were given Polar Verity Sense heart rate monitors based on previous yoga studies and validation [21 (link)], The Polar Verity Sense is the newer version of the Polar OH1, with increased Bluetooth range and longer battery life.
Polar verity sense
Manufactured by Polar Electro
The Polar Verity Sense is a compact and versatile wearable sensor that measures heart rate and other physiological data. It is designed to be worn on the arm and provides accurate real-time heart rate monitoring data.
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Lab products found in correlation
4 protocols using polar verity sense
1
Yoga Heart Rate Monitoring Protocol
2
Optical Arm-Worn Heart Rate Sensor
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The Polar Verity Sense is a PPG device. It is an optical heart rate sensor designed to be worn on the upper arm. The sensor materials include ABS, ABS + GF, poly(methyl methacrylate) (PMMA), and steel use stainless (SUS) 316. The device was positioned with the sensor on the underside of the armband and firmly against the skin. The Polar Verity Sense has a sample rate of 135 Hz and was connected to an iPad mini via Bluetooth.
3
Wearable Device for Heart Rate Monitoring
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The participants will put on a wearable device (Polar Verity Sense by Polar Electro Europe AG, polar.ch) to their left arm with an elastic strap to monitor their heart rate. The device measures beats per minute for every second. Data will be saved on an internal memory during monitoring and will later be transferred to a computer. For statistical analysis we will use data assessed two minutes before the first task until two minutes after the prospective memory task (i.e., 24 min in total). Mean beats per minute within the first two minutes will serve as a baseline for each individual and will be used to standardize measurements of the following 22 minutes by subtracting the baseline from each of the following data points [44 (link)]. We will mainly assess the heart rate to control for a possible influence of agitation on cognition.
4
One-Mile Walk-Run Performance Test
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1-mile walk-run performance test was used. The aim of this test is to cover a distance of one mile in the shortest possible time. Participants can alternate between walking and running as desired; however, they should be encouraged to cover the distance as quickly as feasible. The time elapsed to cover a mile distance, measured in minutes and seconds. During the testing and recovery, the heart rate of the participants was monitored with a heart rate sensor (Polar Verity Sense; Kempele, Finland). Polar Verity Sense can be connected to a sports watch or app via Bluetooth®, ANT+, and internal memory to instantly track your training or view the data after training. As a result, the participant’s time for completing the 1-mile test was tracked using a smart phone GPS system. The validity of the device has been reported previously [27 ]. The participants VO2max values were calculated using the formulas below:
Male (VO2max) = 108.844 - 0.1636W - 1.438T - 0.1928 H
Female (VO2max) = 100.5 - 0.1636W - 1.438T - 0.1928 H
W = Weight in kg, T = Time for the one-mile run and H = Heart rate at the end of the run [28 (link)].
Male (VO2max) = 108.844 - 0.1636W - 1.438T - 0.1928 H
Female (VO2max) = 100.5 - 0.1636W - 1.438T - 0.1928 H
W = Weight in kg, T = Time for the one-mile run and H = Heart rate at the end of the run [28 (link)].
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