Effect of Blood Flow Occlusion on Foot Temperature Change During and After Walking

Advisor Information

Kota Takahashi

Location

MBSC 201

Presentation Type

Poster

Start Date

6-3-2020 2:00 PM

End Date

6-3-2020 3:15 PM

Abstract

Previous works have found that there is a strong correlation between plantar surface temperature and blood flow during rest in healthy populations. However, there is no work highlighting the role of blood flow during walking in healthy subjects. The purpose of this study is to investigate the effect of different levels of blood flow occlusion in one of the lower limbs in healthy subjects. We hypothesize that the temperature of the plantar surface of the occluded foot will be lower than that of the unoccluded foot after walking.

There will be three walking conditions. Each condition will include three different levels of blood flow occlusion. The subject will rest for 20 minutes before walking to allow the body to equilibrate with the room. A thermal image of the bottom of both feet will serve as a baseline for that walking condition. The subject will walk for 10 minutes around a track at a fixed speed. After walking, another image will be taken to be compared with the pre-walking image. A time-lapse will start after the post-walking image is taken to record the rate of change of temperature of the foot. The tourniquet will be deflated halfway through the time-lapse. We will repeat this process for the other two walking conditions.

We expect temperatures in the occluded foot to be significantly lower than the unoccluded foot after walking. We also expect to see higher rates of change of temperature after the deflation of the tourniquet after higher levels of occlusion.

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Mar 6th, 2:00 PM Mar 6th, 3:15 PM

Effect of Blood Flow Occlusion on Foot Temperature Change During and After Walking

MBSC 201

Previous works have found that there is a strong correlation between plantar surface temperature and blood flow during rest in healthy populations. However, there is no work highlighting the role of blood flow during walking in healthy subjects. The purpose of this study is to investigate the effect of different levels of blood flow occlusion in one of the lower limbs in healthy subjects. We hypothesize that the temperature of the plantar surface of the occluded foot will be lower than that of the unoccluded foot after walking.

There will be three walking conditions. Each condition will include three different levels of blood flow occlusion. The subject will rest for 20 minutes before walking to allow the body to equilibrate with the room. A thermal image of the bottom of both feet will serve as a baseline for that walking condition. The subject will walk for 10 minutes around a track at a fixed speed. After walking, another image will be taken to be compared with the pre-walking image. A time-lapse will start after the post-walking image is taken to record the rate of change of temperature of the foot. The tourniquet will be deflated halfway through the time-lapse. We will repeat this process for the other two walking conditions.

We expect temperatures in the occluded foot to be significantly lower than the unoccluded foot after walking. We also expect to see higher rates of change of temperature after the deflation of the tourniquet after higher levels of occlusion.