Whole body vibration improves TcPO2 in the diabetic foot

NewsBot · Nov 29, 2016

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Effect of mechanical vibration on transcutaneous oxygen levels in the feet of type 2 diabetes mellitus patients
Rodríguez Reyes G et al
Med Clin (Barc). 2016 Nov 18. pii: S0025-7753(16)30507-3. doi: 10.1016/j.medcli.2016.09.045

BACKGROUND AND OBJECTIVE:
Foot conditions in patients with diabetes mellitus (DM) are major causes of morbidity and disability. Whole body vibration may promote blood circulation in the lower limbs, hence facilitating perfusion and promoting the supply of nutrients and oxygen to comprised tissues. Transcutaneous oxygen levels (TcPO2)>40mmHg in cases of diabetic foot syndrome are associated with a good prognosis in the resolution of ulcers. The objective of this study was to determine whether whole body vibration favors some parameters of interest related to complications associated with the diabetic foot syndrome.
PATIENTS AND METHODS:
Fifty-four patients with DM were included in a 12-week exercise program based on whole body vibration. Glycemic control was determined on the basis of the patients' levels of glycated hemoglobin (HbA1c); sensitivity and TcPO2 levels of each foot were also recorded. Assessments were performed prior to initiating the whole body vibration program and at the end of it.
RESULTS:
No significant changes were observed in the patients' HbA1c (P=.442) levels or sensitivity (P=.07). A significant 7mmHg increase (P<.0001; effect size: d=0.53) was observed in the concentration of TcPO2.
CONCLUSIONS:
Whole body vibration may increase TcPO2 levels with useful implications for the prevention or management of complications associated with restricted blood perfusion in the diabetic foot syndrome.
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Admin2 · Nov 29, 2016

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NewsBot · Feb 21, 2017

Effect of mechanical vibration on transcutaneous oxygen levels in the feet of type 2 diabetes mellitus patients
Gerardo Rodríguez Reyes et al
Medicina Clínica; 16 February 2017

Background and objective
Foot conditions in patients with diabetes mellitus (DM) are major causes of morbidity and disability. Whole body vibration may promote blood circulation in the lower limbs, hence facilitating perfusion and promoting the supply of nutrients and oxygen to comprised tissues. Transcutaneous oxygen levels (TcPO2) > 40 mmHg in cases of diabetic foot syndrome are associated with a good prognosis in the resolution of ulcers. The objective of this study was to determine whether whole body vibration favors some parameters of interest related to complications associated with the diabetic foot syndrome.

Patients and methods
Fifty-four patients with DM were included in a 12-week exercise program based on whole body vibration. Glycemic control was determined on the basis of the patients’ levels of glycated hemoglobin (HbA1c); sensitivity and TcPO2 levels of each foot were also recorded. Assessments were performed prior to initiating the whole body vibration program and at the end of it.

Results
No significant changes were observed in the patients’ HbA1c (P = .442) levels or sensitivity (P = .07). A significant 7 mmHg increase (P < .0001; effect size: d = 0.53) was observed in the concentration of TcPO2.

Conclusions
Whole body vibration may increase TcPO2 levels with useful implications for the prevention or management of complications associated with restricted blood perfusion in the diabetic foot syndrome.
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NewsBot · Nov 5, 2021

Effect of Vibration on Alleviating Foot Pressure-Induced Ischemia under Occlusive Compression
Weiyan Ren et al
J Healthc Eng. 2021 Oct 25;2021

Objectives: Foot ulcers often occur in people with diabetes because of pressure-induced tissue ischemia. Vibration has been reported to be helpful in alleviating mechanical damage and promoting wound healing. The objective of this study is to explore whether vibration can relieve reactive hyperemia in foot tissue under occlusive compression.

Methods: Thirteen healthy adults participated in the study. Each foot was placed under occlusive compression without or with vibration intervention, which was randomly assigned every other day. The dorsal foot skin blood flow (SBF) was measured pre- and postintervention for each subject in each test. Temporal variations and spectral features of SBF were recorded for comparison.

Results: The results showed that subjects displayed an obvious reactive hyperemia in the foot tissue after pressure occlusion, whereas they displayed a more regular SBF when vibration was applied along with occlusive compression. Moreover, the amplitude of metabolic, neurogenic, and myogenic pathways for SBF was significantly reduced during the hyperemia process when vibration was applied.

Conclusions: This study demonstrated that vibration can effectively reduce the level of hyperemia in foot tissue under occlusive compression and also induce less protective physiological regulatory activities. This is helpful for protecting foot tissue from pressure-induced ischemic injury and foot ulcers.
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NewsBot · Nov 22, 2021

Effect of whole-body vibration training on transcutaneous oxygen levels of the foot in patients with type 2 diabetes: a randomized controlled trial
GerardoRodríguez-Reyesa et al
Journal of Biomechanics; 20 November 2021, 110871

Whole body vibration (WBV) has been suggested as improving skin and blood flow. This study aimed to determine the effect of exposure to WBV on levels of partial transcutaneous oxygen pressure (TcPO2) in the foot of patients with type 2 diabetes (T2D) within the metabolic control goals. A block randomized, open, two-arm, parallel and controlled clinical trial was conducted. Participants recruited from the Center of Comprehensive Care for the Patient with Diabetes were assessed at the National Institute of Rehabilitation, Mexico City. Control group underwent multidisciplinary care for T2D; experimental group, in addition to the comprehensive diabetes care, was exposed to WBV through an exercise program, attending three times a week for a period of 3 months. TcPO2 was measured in the feet of the participants at baseline and after 12 weeks. A sample of 50 volunteers with recently-diagnosed T2D and similar baseline characteristics (demographic, cardiovascular risk, presence of diabetic polyneuropathy, and indicators of glycemic control and TcPO2) was recruited. The experimental group (n=27) showed a mean value of 47.7±6.1 mmHg in TcPO2, significantly higher (p=0.028) than the 44.3±7.5 mmHg of control group (n=23), at the end of intervention. In conclusion, exposure to WBV promoted an increase and a significant 3 mmHg difference in the foot TcPO2 levels between those subjects with T2D that underwent the 12-week exercise program and those not exposed to the treatment.
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