Abstract
Whole-body vibration (WBV) exercises have recently been introduced as a nonpharmacological therapeutic strategy for sarcopenic older people. The present study aimed to evaluate the effect of WBV exercise on hemodynamic parameters in sarcopenic older people. Forty older people, divided into groups of nonsarcopenic (NSG = 20) and sarcopenic (SG = 20), participated in the study and were cross randomized into two interventions of eight sets of 40 s each, these being squatting with WBV and squatting without WBV. Heart rate (HR), peak heart rate (peak HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), double product (DP), mean arterial pressure (MAP), and subjective perception of effort (SPE), were assessed at baseline, during, and after a single WBV session. The HR, peak HR, and DP variables were similar at baseline between groups. WBV exercise increased all the hemodynamic parameters both during and immediately after the intervention, in both groups (SG and NSG). The MAP values were similar at baseline between groups; however, in the NSG there was a significant increase during and immediately after the squatting with WBV intervention (p < 0.05). The HR behavior, in both groups, showed that there was an increase in HR after the first set of exercises with vibration and this increase was maintained until the final set. The absence of adverse effects of WBV exercise on the cardiovascular system and fatigue suggests this exercise modality is adequate and safe for sarcopenic older people.
Highlights
Sarcopenia is a progressive and generalized disease of skeletal muscle, recognized in ICD-10 (International Code of Diseases), which is associated with a greater likelihood of adverse outcomes, including falls, fractures, physical disability, mortality [1], and higher health costs [2]
Over of either sex, who met the criteria of sarcopenia diagnosis, according to relative skeletal muscle index (RSMI) cutoff points described by the European Working Group Consensus on Sarcopenia in Older People—EWGSOP [1]
This study demonstrated that the addition of Whole-body vibration (WBV) promoted greater variations in hemodynamic variables compared to the squatting exercise alone
Summary
Sarcopenia is a progressive and generalized disease of skeletal muscle, recognized in ICD-10 (International Code of Diseases), which is associated with a greater likelihood of adverse outcomes, including falls, fractures, physical disability, mortality [1], and higher health costs [2]. The progressive loss of skeletal muscle mass occurring with aging may be associated with an inadequate supply of blood flow to the skeletal muscle. This plays an important role in the development of sarcopenia, as demonstrated in a study in which the blood pressure (BP) variability index was significantly higher at rest in both male and female participants in the group with the lowest appendicular skeletal muscle mass (ASM) [7]. Studies show that aging attenuates coronary blood flow and myocardial perfusion and predisposes older people to adverse cardiac events [8,9].
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