In this study, women will be required to wear a chest heart rate monitor and wrist heart rate monitor daily and collect daily early morning urine samples for the duration of one complete menstrual cycle. This will enable comparisons between data collected from the heart rate monitor and hormone analysis in urine samples to be made.
This study is a prospective observational study of women's heart rate and heart rate variability throughout one complete menstrual cycle. A minimum of 10 volunteers aged 18 years of age or over will be recruited via a variety of methods according to the criteria detailed in section 9. They will be required to wear a chest heart rate monitor and wrist heart rate monitor for 1 hour each day, and throughout the night for one menstrual cycle. In addition, a daily early morning urine sample will be collected throughout the study. Urine samples will be returned to SPD on a regular basis for measurement of urinary hormones related to pregnancy and fertility. Data collected via the monitors including heart rate and heart rate variability will be downloaded for comparison.
Study Type
OBSERVATIONAL
Enrollment
28
SPD Development Company Ltd
Bedford, Bedfordshire, United Kingdom
Heart rate
Heart rate at time points throughout the menstrual cycle
Time frame: 1 month
Heart Rate
Heart rate variability at time points throughout the menstrual cycle
Time frame: 1 month
Day of Ovulation
Day of ovulation determined by urinary LH surge +1 day
Time frame: 1 month
Fertile Window
Fertile window onset determined by E3G surge
Time frame: 1 month
Fertile window
Fertile window closure determined by P3G rise
Time frame: 1 month
Comparisons between wrist and chest band monitors
Agreement between wrist band and chest band heart rate data
Time frame: 1 month
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