Immediate Effect of Whole-Body Vibration on Skin Temperature and Lower-Limb Blood Flow in Older Adults with Type 2 Diabetes: Pilot Study

• Published in: Applied sciences 2020-01, Vol.10 (2), p.690
• Main Authors: Alves, Kennedy Freitas Pereira, Ferreira, Ana Paula de Lima, Parente, Luana Caroline de Oliveira, Rodrigues, François Talles Medeiros, Marques, Thais Vitorino, Antonino, Gabriel Barreto, Melo, Luiz Carlos de, Villela, Débora Wanderley, Guerino, Marcelo Renato, Leite, Wagner Souza, Campos, Shirley Lima, Lucena, Larissa Coutinho de, Taiar, Redha, Araújo, Maria das Graças Rodrigues de
• Format: Article
• Language: English
• Subjects: Adults; Arteries; Blood flow; blood flow velocity; Blood pressure; Body composition; Body mass index; Body temperature; Clinical trials; Diabetes; Diabetes mellitus; Diabetes mellitus (non-insulin dependent); Doppler effect; Endothelium; Evaluation; Exercise; Flow velocity; Glucose; Heart rate; Homeostasis; Hypertension; Insulin resistance; Older people; Oxygen saturation; Patients; Peripheral blood; Physical fitness; Skin; Skin temperature; Statistical analysis; Thermography; type 2 diabetes mellitus; Vibration; Vibration analysis; Vital signs
• ISSN: 2076-3417; 2076-3417
• DOI: 10.3390/app10020690

The purpose of this study was to evaluate the response of a single whole-body vibration (WBV) training session to peripheral skin temperature and peripheral blood flow of older adults with type 2 diabetes. A double-blind, controlled clinical trial was conducted following the Consolidated Standards of Reporting Trials (CONSORT) guidelines. A single session of WBV (24 Hz; amplitude 4 mm; vibration time 45 s, with a series of eight repetitions with recovery between repetitions of 30 s; total time of 10 min) or sham vibration on the Kikos P204 Vibrating Platform was employed. To assess skin temperature, the FLIR E40bxs thermographic camera and the ultrasonic vascular Doppler for flow velocity were used. Evaluation occurred before and after a WBV or sham intervention. The sample consisted of three men and 17 women. In the WBV group, there was a decrease in the temperature from 29.7 °C (±1.83) to 26.6 °C (±2.27), with p = 0.01. Temperature following sham decreased from 28.6 °C (±1.84) to 26.3 °C (±2.49), with p = 0.01. Regarding blood flow, there was a decrease in the analyzed arteries, especially the left posterior tibial artery, where there was a statistically significant flow reduction from 27.1 m/s (±25.36) to 20.5 m/s (±19.66), post WBV (p = 0.01). In the sham group, an increased flow velocity was observed for all the arteries analyzed, except for the left dorsal artery. Immediately following a full-body vibration session, peripheral skin temperature and lower-limb blood flow tend to decrease in diabetic patients. However, from the design of study developed, we cannot infer the maintenance of this effect in the medium and long term.