We defined DStemp as the body surface temperature measured in the distal area of the ventral forearm. DStemp was measured simultaneously with actigraphy measurements at 3-minute intervals for 7 consecutive 24-hour periods. Measurements were recorded using a wireless temperature logger (Thermochron iButton DS1992L; Maxim Integrated, Dallas, Texas) with an accuracy, range, and resolution of ± 0.5°C, from -10°C to +65°C, and 0.00624°C, respectively. The logger was fixed to the wristband of the actigraph using a plastic attachment such that the sensor of the temperature logger touched the skin surface of the ventral side. Daytime, nighttime, and mean DStemp were calculated for each 24-hour period.
Thermochron ibutton ds1992l
Manufactured by Analog Devices
Sourced in United States
The Thermochron iButton DS1992L is a programmable temperature logger that can record temperature data over an extended period of time. It features a temperature sensor, a real-time clock, and non-volatile memory to store the measured data. The device can be programmed to record temperature readings at user-defined intervals.
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Lab products found in correlation
3 protocols using thermochron ibutton ds1992l
1
Distal Skin Temperature Monitoring
2
Wireless Skin Temperature Monitoring Protocol
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STs of the abdomen, wrist, and ankle were measured using wireless temperature loggers (Thermochron iButton DS1992L, Maxim Integrated, Dallas, TX), 21 (link) which had a measurement accuracy, range, and resolution of ±0. MN). The devices were attached to a silicon band with an adjustable diameter that we then fit to the flexor surface of the wrist and to the lateral flat surface of the ankle. Daytime and nighttime ST measurements of <15 °C and <20 °C, respectively, were excluded from the analysis as measurement error.
We also excluded ST data that were greater or less than 1.96 SDs from the daytime and nighttime means of each site. Distal and proximal STs were defined as those of the abdomen and of the average of the wrist and ankle, respectively. The distalproximal ST gradient was calculated (distal skin temperature [DST]-proximal skin temperature [PST]) to reflect an indirect measure of heat loss in the distal skin regions. 14 (link)
We also excluded ST data that were greater or less than 1.96 SDs from the daytime and nighttime means of each site. Distal and proximal STs were defined as those of the abdomen and of the average of the wrist and ankle, respectively. The distalproximal ST gradient was calculated (distal skin temperature [DST]-proximal skin temperature [PST]) to reflect an indirect measure of heat loss in the distal skin regions. 14 (link)
3
Monitoring Skin Temperature Changes
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In this study, proximal and distal skin temperatures were defined as the thermal measurements obtained from the abdominal surface area and distal region of the ventral forearm, respectively. Proximal and distal skin temperatures were measured at 1-min and 3-min intervals, respectively, using wireless temperature loggers (Thermochron iButton DS1992L; Maxim Integrated, CA, US). The accuracy, range, and resolution of the temperature logger were ±0.5 °C, −10 to +65 °C, and 0.0624 °C, respectively. The temperature logger was attached to the right upper quadrant of the abdominal surface using a Tegaderm transparent dressing (3M, St. Paul, MN, US). The logger for distal skin temperature was attached to the actigraph wristband using a plastic attachment, ensuring that the temperature logger sensor touched the ventral skin surface. The means of the proximal and distal skin temperatures during the daytime and 1–60 min before and after bathing were calculated based on the self-reported diary.
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