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Effects of Preconditioning Local Vibrations on Subsequent Plantar Skin Blood Flow Response to Walking
- Source :
- The International Journal of Lower Extremity Wounds. 20:143-149
- Publication Year :
- 2020
- Publisher :
- SAGE Publications, 2020.
-
Abstract
- Weight-bearing exercise such as walking may increase risk of foot ulcers in people with diabetes mellitus (DM) because of plantar ischemia due to repetitive, high plantar pressure. Applications of local vibrations on plantar tissues as a preconditioning intervention before walking may reduce plantar tissue ischemia during walking. The objective of this study was to explore whether preconditioning local vibrations reduce reactive hyperemia after walking. A double-blind, repeated-measures, and crossover design was tested in 10 healthy participants without DM. The protocol included 10-minute baseline, 10-minute local vibrations (100 Hz or sham), 10-minute walking, and 10-minute recovery periods. The order of local vibrations was randomly assigned. Skin blood flow (SBF) was measured over the first metatarsal head during baseline and recovery periods. SBF responses were characterized as peak SBF, total SBF, and recovery time of reactive hyperemia. SBF was expressed as a ratio of recovery to baseline SBF to quantify the changes. Peak SBF in the vibration protocol (6.98 ± 0.87) was significantly lower than the sham control (9.26 ± 1.34, P < .01). Total SBF in the vibration protocol ([33.32 ± 7.98] × 103) was significantly lower than the sham control ([48.09 ± 8.9] × 103, P < .05). The recovery time in the vibration protocol (166.08 ± 32.71 seconds) was not significantly different from the sham control (223.53 ± 38.85 seconds, P = .1). Local vibrations at 100 Hz could reduce walking-induced hyperemic response on the first metatarsal head. Our finding indicates that preconditioning local vibrations could be a potential preventive intervention for people at risk for foot ulcers.
- Subjects :
- medicine.medical_specialty
Skin blood flow
business.industry
Plantar pressure
Ischemia
030209 endocrinology & metabolism
Walking
General Medicine
030204 cardiovascular system & hematology
medicine.disease
Vibration
03 medical and health sciences
0302 clinical medicine
Regional Blood Flow
Diabetes mellitus
Internal medicine
Diabetes Mellitus
medicine
Cardiology
Humans
Surgery
Foot ulcers
business
Reactive hyperemia
Skin
Subjects
Details
- ISSN :
- 15526941 and 15347346
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- The International Journal of Lower Extremity Wounds
- Accession number :
- edsair.doi.dedup.....149824eac4e56ba067d909955270a6a8