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Articles by Nina Zeng
Effects of cold water immersion versus active recovery on oxidative stress, redox gene expression and mitochondrial adaptations after strength training
1 INTRODUCTION Redox signalling during exercise is an important factor affecting skeletal muscle adaptations to exercise training (Margaritelis et al., 2018; Merry & Ristow, 2016). Reactive oxygen species, such as the superoxide anion (·O2−) are formed in skeletal muscle by electron chain complexes I and III (C-I and C-III), and by the activity of NADPH oxidase and xanthine oxidase (Egan & Zierath, 2013).
Cold water immersion in recovery following a single bout resistance exercise suppresses mechanisms of miRNA nuclear export and maturation
Abstract Cold water immersion (CWI) following intense exercise is a common athletic recovery practice. However, CWI impacts muscle adaptations to exercise training, with attenuated muscle hypertrophy and increased angiogenesis. Tissue temperature modulates the abundance of specific miRNA species and thus CWI may affect muscle adaptations via modulating miRNA expression following a bout of exercise.
The effects of dietary protein intake on appendicular lean mass and muscle function in elderly men: a 10-wk randomized controlled trial
Supported by New Zealand Ministry of Business, Innovation and Employment International Relationships and the European Union (IRSES-318962-BIOAGE) and AgResearch Limited (nutritional strategies for an aging population). Background: The Recommended Daily Allowance (RDA) for protein intake in the adult population is widely promoted as 0.8 g · kg?1 · d?1. Aging may increase protein requirements, particularly to maintain muscle mass.
Acute resistance exercise induces Sestrin2 phosphorylation and p62 dephosphorylation in human skeletal muscle
AbstractSestrins (1, 2, 3) are a family of stress?inducible proteins capable of attenuating oxidative stress, regulating metabolism, and stimulating autophagy. Sequestosome1 (p62) is also a stress?inducible multifunctional protein acting as a signaling hub for oxidative stress and selective autophagy. It is unclear whether Sestrin and p62Ser403 are regulated acutely or chronically by resistance exercise (RE) or training (RT) in human skeletal muscle.
Minimal dose of milk protein concentrate to enhance the anabolic signalling response to a single bout of resistance exercise; a randomised controlled trial | Journal of the International Society of Sports Nutrition | Full Text
Resistance exercise is a potent stimulator of muscle hypertrophy [35], MPS [36] and downstream mTORC1 signalling [12]. Protein feeding acts synergistically with resistance exercise to augment the signalling and MPS response observed with resistance training alone [12, 37]. Although less clear for muscle hypertrophy, the dose of protein required to maximally stimulate MPS and anabolic signalling after resistance exercise has been established and is known to increase with age [38].
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