Department of Rehabilitation Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
Department of Internal Medicine, Division of Endocrinology, Maastricht UMC, Maastricht University, P. Debyelaan 25, 6229 HX Maastricht, The Netherlands.
Sensors (Basel). 2021 May 24;21(11):3645. doi: 10.3390/s21113645.
At-home foot temperature monitoring may be useful in the early recognition of imminent foot ulcers that occur through biomechanical loading in people with diabetes. We assessed the concurrent validity, test-retest reliability, and usability of a new plantar foot temperature monitoring device in 50 people with diabetes and peripheral neuropathy. We compared plantar foot temperature measurements with a platform system that consists of embedded temperature sensors with those from a handheld infrared thermometer that was used as a reference. Repeated platform assessments were compared for test-retest reliability. Usability was assessed in 15 participants who used both devices daily for two weeks at home, after which they completed a questionnaire. Agreement between devices was excellent for the metatarsal heads and heel (ICCs ≥ 0.98, LOA: -0.89 °C; 1.16 °C) and hallux and lateral midfoot (0.93 ≤ ICC ≤ 0.96, LOA: -2.87 °C; 2.2 °C), good for digits 2-5 (0.75 ≤ ICC ≤ 0.88, LOA: -5.04 °C; 2.76 °C), and poor for the medial midfoot (ICC = 0.19, LOA: -8.21 °C; -0.05 °C). Test-retest reliability was high (ICC = 0.99, LOA: -0.59 °C; 1.35 °C). Participants scored between 3.8 and 4.3 on a 5-point Likert scale for willingness to measure, ease of use, measurement comfort, and duration. In conclusion, the platform shows good concurrent validity in foot regions where most ulcers occur, good test-retest reliability, and good usability for measuring plantar foot temperature. Further research should assess the clinical validity of the platform to help prevent plantar diabetic foot ulcers.
家庭足部温度监测可能有助于早期识别糖尿病患者因生物力学负荷导致的即将发生的足部溃疡。我们评估了一种新的足底足部温度监测设备在 50 名糖尿病合并周围神经病变患者中的同时效度、重测信度和可用性。我们将足底足部温度测量值与一个由嵌入式温度传感器组成的平台系统进行了比较，该系统的测量值与手持式红外温度计（作为参考）的测量值进行了比较。为了评估重测信度，我们对平台进行了重复评估。在 15 名参与者中评估了可用性，他们在两周内每天在家中使用这两种设备，然后完成了一份问卷。设备之间的一致性非常好，跖骨头部和脚跟（ICC≥0.98，LOA：-0.89°C；1.16°C）和大脚趾和外侧中足（0.93≤ICC≤0.96，LOA：-2.87°C；2.2°C），良好的足趾 2-5（0.75≤ICC≤0.88，LOA：-5.04°C；2.76°C），中足内侧（ICC=0.19，LOA：-8.21°C；-0.05°C）较差。重测信度很高（ICC=0.99，LOA：-0.59°C；1.35°C）。参与者在 5 分制的量表上对测量意愿、易用性、测量舒适度和持续时间的评分在 3.8 到 4.3 之间。总之，该平台在发生大多数溃疡的足部区域具有良好的同时效度、良好的重测信度和良好的足底足部温度测量可用性。进一步的研究应该评估该平台的临床有效性，以帮助预防糖尿病足底溃疡。
