Abstract：
:Abstract: Heart failure (HF) is associated with skeletal muscle wasting and exercise intolerance. This study aimed to evaluate the exercise-induced clinical response and histological alterations. One hundred and forty-four HF patients were enrolled. The individual training program was determined as a workload at or close to the lactate threshold (LT1); clinical data were collected before and after 12 weeks/6 months of training. The muscle biopsies from eight patients were taken before and after 12 weeks of training: histology analysis was used to evaluate muscle morphology. Most of the patients demonstrated a positive response after 12 weeks of the physical rehabilitation program in one or several parameters tested, and 30% of those showed improvement in all four of the following parameters: oxygen uptake (VO2) peak, left ventricular ejection fraction (LVEF), exercise tolerance (ET), and quality of life (QOL); the walking speed at LT1 after six months of training showed a significant rise. Along with clinical response, the histological analysis detected a small but significant decrease in both fiber and endomysium thickness after the exercise training course indicating the stabilization of muscle mechanotransduction system. Together, our data show that the beneficial effect of personalized exercise therapy in HF patients depends, at least in part, on the improvement in skeletal muscle physiological and biochemical performance.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Lelyavina TA,Galenko VL,Ivanova OA,Komarova MY,Ignatieva EV,Bortsova MA,Yukina GY,Khromova NV,Sitnikova MY,Kostareva AA,Sergushichev A,Dmitrieva RIdoi
10.3390/ijms20215514subject
Has Abstractpub_date
2019-11-05 00:00:00issue
21issn
1422-0067pii
ijms20215514journal_volume
20pub_type
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