Yunan Zhou1, Matthias Hellberg1, Thomas Hellmark1, Peter Höglund2, Naomi Clyne1. 1. Department of Clinical Sciences Lund, Nephrology, Faculty of Medicine, Skåne University Hospital, Lund University, Lund, Sweden. 2. Department of Laboratory Medicine, Division of Clinical Chemistry & Pharmacology, Skåne University Hospital, Lund University, Lund, Sweden.
Abstract
BACKGROUND: Sarcopenia increases as renal function declines and is associated with higher morbidity and mortality. Myostatin is a negative regulator of muscle growth. Its expression in response to exercise is unclear. In this prespecified substudy of the Renal Exercise (RENEXC) trial, we investigated the effects of 12 months of exercise training on sarcopenia, muscle mass and plasma myostatin and the relationships between physical performance, muscle mass and plasma myostatin. METHODS:A total of 151 non-dialysis-dependent patients (average measured glomerular filtration rate 23 ± 8 mL/min/1.73 m2), irrespective of age or comorbidity, were randomly assigned to either strength or balance in combination with endurance training. Body composition was measured with dual-energy X-ray absorptiometry. Plasma myostatin was analysed using enzyme-linked immunosorbent assay kits. RESULTS: After 12 months, the prevalence of sarcopenia was unchanged, leg and whole-body lean mass increased significantly in the balance group and was unchanged in the strength group. Whole fat mass decreased significantly in both groups. There were no significant between-group differences in sarcopenia or body composition. Plasma myostatin levels increased significantly in both groups, with a significant difference in favour of the strength group. Plasma myostatin was significantly positively related to muscle mass and physical performance at baseline, but these relationships were attenuated after 12 months. CONCLUSIONS:Exercise training seems to be effective in preventing sarcopenia and maintaining muscle mass in non-dialysis-dependent patients with chronic kidney disease (CKD). However, the role of plasma myostatin on muscle mass and physical performance in patients with CKD warrants further study.
RCT Entities:
BACKGROUND:Sarcopenia increases as renal function declines and is associated with higher morbidity and mortality. Myostatin is a negative regulator of muscle growth. Its expression in response to exercise is unclear. In this prespecified substudy of the Renal Exercise (RENEXC) trial, we investigated the effects of 12 months of exercise training on sarcopenia, muscle mass and plasma myostatin and the relationships between physical performance, muscle mass and plasma myostatin. METHODS: A total of 151 non-dialysis-dependent patients (average measured glomerular filtration rate 23 ± 8 mL/min/1.73 m2), irrespective of age or comorbidity, were randomly assigned to either strength or balance in combination with endurance training. Body composition was measured with dual-energy X-ray absorptiometry. Plasma myostatin was analysed using enzyme-linked immunosorbent assay kits. RESULTS: After 12 months, the prevalence of sarcopenia was unchanged, leg and whole-body lean mass increased significantly in the balance group and was unchanged in the strength group. Whole fat mass decreased significantly in both groups. There were no significant between-group differences in sarcopenia or body composition. Plasma myostatin levels increased significantly in both groups, with a significant difference in favour of the strength group. Plasma myostatin was significantly positively related to muscle mass and physical performance at baseline, but these relationships were attenuated after 12 months. CONCLUSIONS: Exercise training seems to be effective in preventing sarcopenia and maintaining muscle mass in non-dialysis-dependent patients with chronic kidney disease (CKD). However, the role of plasma myostatin on muscle mass and physical performance in patients with CKD warrants further study.
Authors: Luke A Baker; Daniel S March; Thomas J Wilkinson; Roseanne E Billany; Nicolette C Bishop; Ellen M Castle; Joseph Chilcot; Mark D Davies; Matthew P M Graham-Brown; Sharlene A Greenwood; Naushad A Junglee; Archontissa M Kanavaki; Courtney J Lightfoot; Jamie H Macdonald; Gabriella M K Rossetti; Alice C Smith; James O Burton Journal: BMC Nephrol Date: 2022-02-22 Impact factor: 2.388
Authors: Soo Jeong Choi; Min Sung Lee; Duk-Hee Kang; Gang Jee Ko; Hee-Sook Lim; Byung Chul Yu; Moo Yong Park; Jin Kuk Kim; Chul-Hee Kim; Seung Duk Hwang; Jun Chul Kim; Chang Won Won; Won Suk An Journal: Int J Environ Res Public Health Date: 2021-07-09 Impact factor: 3.390