Abstract
(1) Background: Regucalcin or senescence marker protein 30 (SMP30) is a Ca2+ binding protein discovered in 1978 with multiple functions reported in the literature. However, the impact of exercise training on SMP30 in humans has not been analyzed. Aging is associated with many detrimental physiological changes that affect body composition, functional capacity, and balance. The present study aims to investigate the effects of whole body vibration (WBV) in postmenopausal women. (2) Methods: A total of 13 women (aged 54.3 ± 3.4 years) participated in the study. SMP30, body composition (fat mass, lean mass, and bone mass) and physical fitness (balance, time up and go (TUG) and 6-min walk test (6MWT)) were measured before and after the 12 weeks of WBV training. (3) Results: The WBV training program elicited a significant increase in SPM30 measured in plasma (27.7%, p = 0.004) and also in 6MWT (12.5%, p < 0.001). The WBV training also significantly reduced SPM30 measured in platelets (38.7%, p = 0.014), TUG (23.1%, p < 0.001) and total body fat mass (4.4%, p = 0.02). (4) Conclusions: There were no significant differences in balance, lean mass or bone mass. The present study suggests that 12 weeks of WBV has the potential to improve SPM30, fat mass, TUG and 6MWT in postmenopausal women.
Highlights
Regucalcin (SMP30) is a calcium binding protein discovered in 1978 [1], and it has been shown to be a downregulated protein in aging rats [2]
The present study suggests that 12 weeks of whole body vibration (WBV) has the potential to improve SPM30, fat mass, TUG and 6MWT in postmenopausal women
senescence marker protein 30 (SMP30) has been tied to osteoporosis [5], due to the studies done on bone metabolism in rats [8]
Summary
Regucalcin (SMP30) is a calcium binding protein discovered in 1978 [1], and it has been shown to be a downregulated protein in aging rats [2]. SMP30 has been tied to osteoporosis [5], due to the studies done on bone metabolism in rats [8]. Despite that the beneficial effect of exercise in bone mineralization has been reported [9], no studies have analyzed the effect of exercise on SMP30 in humans. Fractures and obesity are major health concerns in the elderly. One-third of women, over the age of 50, suffer at least one fracture during their lifetime, with the consequences of morbidity and economic cost to the health system [10]. Falls are a common cause of fracture in the elderly [11]
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