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Why strength depends on more than muscle

Researchers found that high-load training conditions the nervous system to transmit electrical signals from the brain to muscles, increasing force production. The study replicated previous findings with similar growth in muscle but greater strength gains in the high-load group.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Exercise keeps muscles -- and you -- young: Study

A University of Guelph professor found that elite athletes in their 80s and 90s have stronger legs and more muscle mass than non-athletes. The study, published in the Journal of Applied Physiology, compared world-class track and field athletes with individuals of the same age who are living independently.

Nerve and muscle activity vary across menstrual cycle

Researchers found that motor unit firing patterns varied significantly across the menstrual cycle, with a significant increase in the late luteal phase, potentially affecting joint stability and injury risk. The study suggests that hormone fluctuations may play a role in knee injuries among female athletes.

A nano car with molecular 4-wheel drive

Researchers at Empa have successfully designed a molecule with four rotating motor units that can travel straight ahead in a controlled manner. The smallest electric car in the world, measuring approximately 4x2 nanometres, requires refueling with electricity after every half revolution of its wheels.

DNA unwinding protein runs on two motors

Researchers have discovered that the DNA unwinding protein RecBCD uses two motors to move along the DNA, one from 3' to 5' and another from 5' to 3'. This allows the complex to travel long distances before stopping or getting derailed.