D. Hahn

Eccentric exercise is not equal to eccentric contraction

This study shows that eccentric exercise involves fascicle-level shortening-stretch contractions rather than isolated eccentric contractions, with pre-activation affecting fascicle kinematics and work.

Residual force depression is not related to positive muscle fascicle work during submaximal voluntary dorsiflexion contractions in humans

This study investigates the relationship between residual force depression and muscle work during voluntary dorsiflexion contractions, finding that rFD is linearly related to MTU work but not fascicle work.

Skeletal muscle Nox4 knockout prevents and Nox2 knockout blunts loss of maximal diaphragm force in mice with heart failure with reduced ejection fraction

This study shows that Nox4 knockout prevents diaphragm force loss in HFrEF mice, while Nox2 knockout provides partial protection and improves survival after myocardial infarction.

Residual force enhancement within the human quadriceps is greatest during submaximal stretch-hold contractions at a very long muscle length

This study investigates residual force enhancement (rFE) in human quadriceps at different muscle lengths and finds that rFE is most significant at very long lengths.

Rapid brain development and reduced neuromodulator titres correlate with host shifts in Rhagoletis pomonella

The paper correlates rapid brain development and reduced neuromodulator levels with host shifts in Rhagoletis pomonella, showing synchronization between life history traits and neurochemical changes.

Cardiac and respiratory muscle responses to dietary N-acetylcysteine in rats consuming a high-saturated fat, high-sucrose diet

This study examines the effects of a high-saturated fat, high-sucrose diet and N-acetylcysteine supplementation on cardiac and respiratory muscle function in rats, finding diet-induced cardiac hypertrophy and dysfunction that were partially mitigated by NAC.

Short-term heritable variation overwhelms two hundred generations of mutational variance for metabolic traits in Caenorhabditis elegans

The paper quantifies short-term heritable variation in metabolic traits of C. elegans and finds it comparable to mutational variance, suggesting epigenetic factors may significantly contribute to metabolic disease heritability.

Triceps surae torque-length relationships relevant for walking activity levels with and without an ankle exoskeleton

This study examines how ankle exoskeletons affect torque-length properties of plantar flexor muscles during walking, finding that reduced muscle activity shifts these properties to longer fascicle lengths and dorsiflexed angles.

3D microenvironment stiffness regulates tumor spheroid growth and mechanics via p21 and ROCK

This study shows that 3D microenvironment stiffness affects tumor spheroid growth and mechanics through p21 and ROCK pathways.

Genetic characterization of chytrids isolated from larval amphibians collected in central and east Texas

The paper genetically characterizes Bd isolates from Texas, finding high diversity in central Texas and no genetic structure associated with host species or location.