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Human skeletal muscle transcriptome in response to high-intensity interval training

ABSTRACT: Human skeletal muscle transcriptome in response to high-intensity interval training

PROVIDER: PRJNA685799 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13260900.fastq.gz	Fastqsanger.gz
	SRR13260901.fastq.gz	Fastqsanger.gz
	SRR13260902.fastq.gz	Fastqsanger.gz
	SRR13260903.fastq.gz	Fastqsanger.gz
	SRR13260904.fastq.gz	Fastqsanger.gz

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Human skeletal muscle transcriptome in response to high-intensity interval training

Project description:Skeletal muscle tissue is a highly adaptable tissue, responding to the specific demands it is subjected to. High-intensity interval training (HIIT) has been shown to generate similar, or even greater, molecular changes in skeletal muscle as that of constant load longer-lasting endurance-type training at moderate intensities. Despite shorter exposure times, the higher intensity provided by HIIT training leads to greater metabolic perturbations and thereby larger improvements in mitochondrial content and maximal oxygen uptake. During a period of regular exercise training, the performance improvements follow a non-linear pattern with a relatively faster pace initially and a gradual ‘plateauing-off’ after weeks and months. It is believed that this ‘plateau effect’ is due to a blunting of the molecular responses to acute exercise with exercise training. In the present study we utilised an explorative global transcriptomic approach to investigate the phenomenon of transcriptional-level blunting of the acute exercise response in human skeletal muscle over the course of a three-week HIIT intervention. We hypothesize that the blunting of transcription at this time-point is specific to certain pathways, including metabolic regulation and that these genes have communal transcriptional regulation.

2021-09-01 | GSE163356 | GEO

High intensity interval training remodels the proteome and acetylome in human skeletal muscle

Project description:Exercise is an effective strategy in the prevention and treatment of metabolic diseases. Alterations in the skeletal muscle proteome, including post-translational modifications, regulate its metabolic adaptations to exercise. Here, we examined the effect of high-intensity interval training (HIIT) on the proteome and acetylome of human skeletal muscle, revealing the response of 3168 proteins and 1263 lysine acetyl-sites on 464 acetylated proteins. We identified novel protein adaptations to exercise training involved in metabolism and excitation-contraction coupling. Furthermore, HIIT increased the acetylation of mitochondrial proteins, particularly those of complex V, likely via non-enzymatic mechanisms. We also highlight the regulation of novel exercise-responsive histone acetyl-sites. These data demonstrate the plasticity of the skeletal muscle proteome and acetylome, providing insight into the regulation of contractile, metabolic and transcriptional processes within skeletal muscle. Herein, we provide a substantial hypothesis-generating resource to stimulate further mechanistic research investigating how exercise improves metabolic health.

2022-06-09 | PXD023084 | Pride

Human skeletal muscle possesses an epigenetic memory of high intensity interval training

Project description:Human skeletal muscle possesses an epigenetic memory of high intensity interval training

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Human skeletal muscle possesses an epigenetic memory of high intensity interval training

Project description:Twenty healthy subjects (25±5yrs) completed two high-intensity interval training interventions (training and retraining) lasting 8 weeks separated by 12 weeks of detraining. Measurements at baseline and after training, detraining and retraining included maximal oxygen consumption (V̇O2max), along with vastus lateralis biopsy for genome wide DNA methylation using Illumina Epic arrays in 5 of the participants for all conditions (baseline, training, detraining and retraining).

2024-05-30 | GSE268211 | GEO

Type I and Type II fibre-type-specific and whole muscle DNA methylation profiles across both males and females before and after 12 weeks High Intensity Interval Training

Project description:Skeletal muscle is an important organ for health and movement, largely driven by specific muscle fibres. However, the assessment of fibre-type-specific DNA methylation in human skeletal muscle has been limited. We generated methylome profiles of Type I muscle fibres (T1), Type II muscle fibres (T2) and whole skeletal muscle (WM) from males and females before and after 12 weeks high intensity interval training. We compared the TI and TII pooled fibre samples (per individual) and whole muscle samples at the baseline timepoint and generated TI, TII and WM profiles of human skeletal muscle from both males and females.

2025-10-23 | GSE304045 | GEO

Skeletal muscle response to high-intensity intermittent exercise training in young men

Project description:High-intensity intermittent exercise training (HIIT) has been proposed as an effective approach for improving both anaerobic and aerobic capacities. However, the molecular response of muscles to HIIT remains unknown. We used microarray to examine the effects of HIIT on global gene expression in human skeletal muscle.

2018-11-30 | GSE109657 | GEO

Two weeks of high-intensity interval training increases skeletal muscle mitochondrial respiration via complex-specific remodeling in sedentary humans

Project description:Aerobic training remodels the quantity and quality (function per unit) of skeletal muscle mitochondria to promote substrate oxidation, however, there remain key gaps in understanding the underlying mechanisms during initial training adaptations. We used short-term high-intensity interval training (HIIT) to determine changes to mitochondrial respiration and regulatory pathways that occur early in remodeling. Fifteen normal-weight sedentary adults started seven sessions of HIIT over fourteen days and fourteen participants completed the intervention. We collected vastus lateralis biopsies before and 48-hours after HIIT to determine mitochondrial respiration, RNA sequencing, and western blotting for proteins of mitochondrial respiration and degradation via autophagy. HIIT increased respiration per mitochondrial protein for lipid (+23% P=0.020), complex I (+18%, P=0.0015), complex I+II (+14%, P<0.0001) and complex II (+24% P<0.0001). Transcripts that increased with HIIT identified several gene sets of mitochondrial respiration, particularly for complex I, while transcripts that decreased identified pathways of DNA and chromatin remodeling. HIIT lowered protein abundance of autophagy markers for p62 (-19%, P=0.012) and LC3 II/I (-20%, P=0.004) in whole-tissue lysates but not isolated mitochondria. Meal tolerance testing revealed HIIT increased the change in whole-body respiratory exchange ratio and lowered cumulative plasma insulin concentrations. Gene transcripts and respiratory function indicate remodeling of mitochondria within 2 weeks of HIIT. Overall changes are consistent with increased protein quality driving rapid improvements in substrate oxidation.

2023-01-10 | GSE221894 | GEO

Two weeks of high-intensity interval training increases skeletal muscle mitochondrial respiration via complex-specific remodeling in sedentary humans

Project description:Two weeks of high-intensity interval training increases skeletal muscle mitochondrial respiration via complex-specific remodeling in sedentary humans

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Skeletal muscle response to high-intensity intermittent exercise training in young men

Project description:Skeletal muscle response to high-intensity intermittent exercise training in young men

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Beneficial Effects of High Intensity Interval Training in a Mouse Model of Hypertrophic Cardiomyopathy

Project description:High intensity exercise (HIE) has become a prominent training modality used to ameliorate cardiac disease conditions. The effects of HIE training on Hypertrophic Cardiomyopathy (HCM) have not been previously studied in animal models or in patients, largely due to concerns about triggering sudden arrhythmic events. Employing a transgenic cardiac troponin (cTnT-160E or TG) preclinical murine model that closely recapitulates human HCM, we evaluated the effects of a High Intensity Interval Training (HIIT) protocol on cardiorespiratory capacity (i.e., peak oxygen consumption or pVO2), which is a significant prognostic indicator of disease trajectory. 14 month old TG male mice had lower peak VO2 than non-transgenic (NTG) male mice of the same age at baseline, but there was no difference in pVO2 in female TG compared to nTG mice. HIIT significantly improved pVO2 in both nTG female (18%) , nTG male (18%), TG female (16%) and TG male (12%) mice compared to sedentary controls. There were no changes in structure, function or LV mass as measured by echocardiography or post mortem analyses in any of the groups, and no effect of HIIT on cardiac fibrosis. HIIT led to significant increases in lean muscle mass in both nTG and TG male mice, and nTG female mice but not TG female mice. The results of our study provide foundational evidence that HIE can improve pVO2 in HCM without adverse effects on disease phenotype.

2025-05-20 | GSE297707 | GEO

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