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J Sports Sci. 2019 Oct;37(19):2175-2183. doi: 10.1080/02640414.2019.1626048. Epub 2019 Jun 4.

Exercise training increases the S-Klotho plasma levels in sedentary middle-aged adults: A randomised controlled trial. The FIT-AGEING study.

Author information

1
a Department of Medical Physiology, School of Medicine, University of Granada , Granada , Spain.
2
b PROFITH "PROmoting FITness and Health through physical activity" Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada , Granada , Spain.
3
c Unidad de Gestión Clínica de Laboratorios Clínicos, Hospital, H.U. Virgen de las Nieves, Ibs, Granada, Complejo Hospitalario de Granada , Granada , Spain.
4
d Unidad de Gestión Clínica de Laboratorios Clínicos, H.U San Cecilio, Ibs, Granada, Complejo Hospitalario de Granada , Granada , Spain.

Abstract

This study aimed to investigate the effects of different training modalities on the soluble Klotho (S-Klotho) plasma levels in sedentary middle-aged adults. A total of 74 middle-aged adults (53.4 ± 5.0 years old; 52.7% women) were enrolled in the FIT-AGEING study. We conducted a 12-week randomised controlled trial. The participants were randomly assigned to 4 different groups: (i) a control group (no exercise), (ii) a physical activity recommendation from the World Health Organization group (PAR), (iii) a high intensity interval training group (HIIT), and (iv) a high intensity interval training group adding whole-body electromyostimulation training group (HIIT-EMS). S-Klotho plasma levels, anthropometric measurements, and body composition variables were measured before and after the intervention programme. All exercise training modalities induced an increase in the S-Klotho plasma levels (all P ≤ 0.019) without statistical differences between them (all P ≥ 0.696). We found a positive association between changes in lean mass index and changes in the S-Klotho plasma levels, whereas a negative association was reported between changes in fat mass outcomes and changes in the S-Klotho plasma levels after our intervention study. In conclusion, our results suggest that the link between exercise training and the increase in S-Klotho plasma levels could be mediated by a decrease of fat mass and an increase of lean mass.

KEYWORDS:

Aging; HIIT (High Intensity Interval Training); WB-EMS (Whole-Body Electromyostimulation); body composition; longevity

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