The aim of this study was to evaluate the effects of a single-session of whole-body vibration (WBV) exercise on haematological and serum biochemical parameters and serum cortisol levels in healthy adult cats. Ten healthy neutered crossbred cats, five males and five females, aged 2 to 4 years and weighing 3.25-5.15 kg, were enrolled. All cats were tested in the same period starting at 12:00 a.m. and under same environmental conditions. A 1 h period of acclimatisation and rest was completed prior to the WBV session. During the WBV session, the cat was placed in a standing position on the centre of the vibrating platform. Each cat was exposed to a single WBV session. The protocol was 30 Hz for 5 min, followed by 50 Hz for 5 min and finishing with 30 Hz for 5 min. The peak displacements were 3.10 mm and 3.98 mm and the peak accelerations 55.0 m/s and 195.96 m/s. Complete blood cell count, serum biochemistry (alanine aminotransferase, creatinine, creatine phosphokinase) and serum cortisol were determined at three time-points: before (T0), immediately after (T1), and at 4 h after the end of the WBV session (T2). Immediately after increasing the frequency from 30 to 50 Hz, two cats (20%) tried to sit and showed signs of agitation that ceased after 15 s. No cat tried to jump out. The variables presented no statistically significant differences among the time-points. In conclusion, a 15 min session of WBV exercise at frequencies of 30, 50 and 30 Hz does not cause significant changes in haematological or serum biochemical parameters, nor in serum cortisol levels in healthy adult cats.
This study investigated the effects of WBV in clinical, cardiac, and ambulatory electrocardiographic (Holter) parameters of healthy young and aged male non-athletic dogs. Fourteen dogs were divided into two groups of seven animals: Group I (GI) - young dogs (12.0 and 84.0 months old); Group II (GII) - aged dogs (above 84.0 months old). Dogs were submitted to a single session of WBV (frequencies of 30 and 50 Hz), for 15-min. Variations were identified in the thickness of the interventricular septum and thickness of the left ventricle-free wall values: GI < GII at 5-min before the session. The diameter of the left atrium values showed a difference: GI < GII at 5-min before and 1-min after the session; and a decrease in GII between 5-min before and 1 min after the WBV. Several ambulatory electrocardiography (Holter) parameters demonstrated significant differences between both groups and time-points. A single session of WBV at frequencies of 30 and 50 Hz during 15-min by using a vibrating platform that delivered a vortex wave circulation did not induce significant changes in clinical, cardiac, and ambulatory electrocardiographic (Holter) parameters in healthy young and aged dogs.
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