Exercise
fromwww.theguardian.com
3 days agoPower up! Could force be the secret to supercharging your fitness?
Power training is essential for maintaining physical function and preventing injuries as we age.
Body agency is a power returned after an incident took it away from the user's physical form, and some wearable devices and technologies have this exact goal in mind.
An individual's gait can reveal their emotional state from a distance, enabling social decision-making - such as whether to approach or avoid them - before their facial expressions become visible. While facial expressions can be consciously controlled, gait represents a spontaneous and habitual motor behaviour that may provide reliable cues for one's internal emotional state.
Before I retired, I taught physics at a secondary school in China. While working as a teacher, I met my wife at an event. We were as active as the students we taught, spending our free time playing badminton, basketball, volleyball, and table tennis.
The brain is the conductor of the orchestra, the muscles are the instruments. When your body is out of alignment, the orchestra is playing out of tune. Misalignment in the musculoskeletal system is frequently the root cause of chronic pain and the resulting poor posture.
An exoskeleton is a relatively new class of wearable device designed to enhance, support, or assist human movement, strength, posture, or even physical activity. The main piece goes around your waist like a belt, and from it, a pair of hinged, mechanized splints extend down over the hips to strap onto each thigh, where they provide some robotic assistance to normal movements like walking, running, or squatting.
When you have an acute injury, your body is sending signals through the peripheral and central nervous systems and the immune system to say, hold on, I need to stop doing this so we can allow the tissue to heal, says Ericka Merriwether, a physical therapist and pain researcher at New York University. Rest, after all, is the first part of the familiar RICE therapy, which stands for rest, ice, compression and elevation.
In 2018, Sharples and his research lab, now at the Norwegian School of Sport Sciences in Oslo, were the first to show that exercise could change how our muscle-building genes work over the long term. The genes themselves don't change, but repeated periods of exertion turns certain genes on, spurring cells to build muscle mass more quickly than before. These epigenetic changes have a lasting effect: Your muscles remember these periods of strength and respond favorably in the future.
Artificial intelligence (AI) machine learning is making a difference in assistive technology to help restore movement for the paralyzed. A new study in the American Institute of Physics journal APL Bioengineering shows how AI has the potential to restore lower-limb functions in those with severe spinal cord injuries (SCIs) by identifying patterns in brain signals captured noninvasively via electroencephalography (EEG).
For runners, the hips can be one of the most confounding and frustrating parts of the physiological puzzle for efficient movement. Every runner knows how crucial hip strength is - and how mobile hips are essential for both fast and pain-free running. Yet healthy, happy hips remain elusive. For many of us, our hips stay stiff no matter how much we massage and stretch them.
In this episode of the On Coaching Podcast, Steve Magness and Jon Marcus discuss the concept of 'fit but flat,' exploring the phenomenon where athletes excel in metabolic fitness but fail to perform competitively due to a lack of neuromuscular coordination. Using examples like middle-distance runner Ingram Brion, the hosts delve into how metabolic training alone can lead to race failures.
Most people think walking faster and taking longer strides equals better exercise. After all, covering more ground should mean burning more calories and getting fitter, right? But here's what I've learned after interviewing physical therapists and orthopedic specialists over the years: that aggressive, overextended walking style is actually one of the worst things you can do to your knees, especially after 50.
Betley and his colleagues were curious about what happens in the brain as people get stronger through exercise. They decided to focus on the ventromedial hypothalamus, a brain region that regulates appetite and blood sugar. The team then zeroed in on a group of neurons in that region that produce a protein called steroidogenic factor 1 (SF1), which is known to play a part in regulating metabolism. A previous study found that the deletion of the gene that codes for SF1 impairs endurance in mice.
There's something quietly radical about designing for pain. Not the dramatic, cinematic kind, but the daily grind of chronic discomfort that shapes how millions of people move through their lives. That's exactly what Madhav Binu, Kriti V, and Himvall Sindhu set out to tackle with Revive, a home-based rehabilitation device for knee osteoarthritis patients. The numbers tell a sobering story. Forty percent of India's elderly population lives with knee osteoarthritis, a condition that doesn't just hurt.
The wrist is such a complex little area, Evans says, as they have evolved to allow an extraordinary range of movement while also supporting a high level of fine motor control the wrists mean we have the capacity to do both handstands and neurosurgery. It's got eight little carpal bones they're the axis of the wrist and then you've got your radius and your ulna, which are your two forearm bones, and then that joins in with your hand bones, your metacarpals, Evans says.
It got me thinking. While everyone's obsessing over the latest fitness trends and biohacking protocols, these folks have been consistently moving their bodies for decades. No fancy equipment, no Instagram-worthy routines, just simple habits they picked up long before movement became a multibillion-dollar industry. So I started asking around, digging into research, and talking to people who've stayed active well into their golden years. What I found wasn't revolutionary or complicated. It was refreshingly simple.
So the word exercise, you know, comes from the Latin ejercicio. And it meant, you know, to train so we still do math exercises or soldiers do exercises to get fit. But eventually the term has changed it's meaning and it's developed new meetings. So one hand it means to do voluntary physical activity for the sake of health and fitness. That's the kind of sort of the sort of fitness, physical activity kind of exercise.
It's just what it looks like: I time my planks then file them away, determined to last a little longer tomorrow. And sometimes I do, for several days in a row, then one day I'll collapse nearly a minute short of my personal best. I'll pound the mat like Charlton Heston at the end of Planet of the Apes, then I'll get myself together - you've got to stay cool at Equinox - and move on with my day.
Bracesys sidesteps all these limitations with an adjustable framework of segmented units, articulating connectors, and tension dials. The entire system weighs just 150 grams and folds flat into an envelope, yet provides rigid support comparable to traditional casts. More remarkably, clinicians can customize it to each patient's anatomy in real time, adjusting the fit as swelling decreases and healing progresses.