Study: Men Have Bigger Noses Than Women Because They Have More Muscle

What Causes Muscle Growth?

18 (UPI) -- Men have bigger noses than women, and it's due to the sexes' different builds and energy demands, researchers at the University of Iowa say. Males in general have more lean muscle mass, which requires more oxygen for muscle tissue growth and maintenance, they said, and larger noses mean more oxygen can be breathed in and transported in the blood to supply the muscle. "We have shown that as body size increases in males and females during growth, males exhibit a disproportionate increase in nasal size," researchers Nathan Holton said in a university release Monday. Males and females begin to show differences in nose size at about age 11, generally when puberty starts, the researchers said, Physiologically speaking, they said, males begin to grow more lean muscle mass from that time, while females grow more fat mass. "This follows the same pattern as energetic variables such as oxygenate consumption, basal metabolic rate and daily energy requirements during growth," Holton said. It also explains why our noses are smaller than those of our ancestors, such as the Neanderthals, he said, because our distant lineages had more muscle mass and needed larger noses to maintain that muscle. "So, in [modern] humans, the nose can become small, because our bodies have smaller oxygen requirements than we see in archaic humans," Holton said. Rib cages and lungs are also smaller in modern humans, reinforcing the idea that we don't need as much oxygen to feed our frames as our ancestors did, he said. 2013 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent. Orginal Article -

3. Rest - it is during the rest or recovery phase that the muscles repair the microscopic damage and grow. Muscle size increases due to hypertrophic adaptation and an increase in the cross section area of individual muscle fibers. Intensive exercise impacts more on the strength influencing fast twitch type II fibers, therefore the increase in muscle size is accompanied by greater strength. This will deplete the muscle's energy stores and cause microscopic damage to the muscle tissue. During recovery, these stores of glycogen and phosphocreatine will replenish from carbohydrates and creatine ingested as food or supplements. Amino acids supplied in the diet will trigger the protein synthesis that repairs the damaged muscle and lead to the creation of bigger muscle fibers. To achieve continuous improvement you will need to keep reaching for higher levels of training intensity otherwise the improvement process will grind to a halt. Fortunately, this is relatively easy to plan for provided certain basic principles and rules are clearly followed. Subsequent articles in this series will examine these principles in detail. In the meantime you can find out more about building muscle by visiting the site listed below. Orginal Article -

Death of the gym workouts? 'Hulk' protein discovered by scientists that could be behind huge muscle growth

'Hulk' protein discovered by scientists that could be behind huge muscle growth But doctor warns: 'Don't turn in your gym membership just yet' comments If you hate the idea of working out in a gym to look toned and muscle-bound, then this could be the news you have been waiting for. Scientists in Australia believe they have found one of the molecular keys to a protein that promotes weight and muscle mass gain - without any exercise involved. Researchers have found that by blocking the function of Grb10 - nicknamed the 'Hulk' protein - while mice were in the womb, they were considerably stronger and more muscular at birth than normal mice. Mr Muscles: Getting toned like the Incredible Hulk will be a thing of the past if the protein discovered by scientists helps muscle growth in humans The study, published in the September issue of the respected FASEB Journal, has important implications for a wide range of conditions such as muscular dystrophy, Type 2 diabetes, and problems produced by muscle inflammation. One in a hundred children are 'psychopathic', warn researchers - and they say there is nothing parents can do to control them Grb10 seems to have a significant role in promoting muscle growth without any change in activity, diet, or adverse health effects, according to researchers. 'By identifying a novel mechanism regulating muscle development, our work has revealed potential new strategies to increase muscle mass,' said Lowenna J. Holt from the Diabetes and Obesity Research Program at the Garvan Institute of Medical Research in Sydney. Holt and her colleagues compared two groups of mice. One with the Grb10 gene and the other where it was blocked. Working out: No more gym work may be on the cards following tests on mice which showed the blocking of a protein helped muscle growth Researchers examined the properties of the muscles in both adult and newborn mice and discovered that the increase caused by the loss of Grb10 had mainly occurred during prenatal development. These results suggested that it may in future be possible to alter muscle growth and help faster healing, as the processes involved in muscle regeneration and repair are similar to those for the initial formation of muscle. Orginal Article -

Muscle Growth in Teenagers

So today, I want to share five quick tips to jump-start growth in any muscle. Nothing crazy, no groundbreaking secrets from some kind of black ops training camp. Just five tried-and-true methods I use with my clients to get their stubborn muscles growing. 1. Dont just lift - lift fast Unless youre doing a programme that specifically calls for a dedicated lifting and lower speed (like lactic acid training), dont worry about tempo. As an industry, were really getting away from tempo prescriptions as a whole. In fact, Jason Ferruggia (excellent trainer, top man) has cited the prescription of slow tempos for muscle growth as one of the biggest mistakes and wastes of time in his career. While I dont think we need to write tempos off completely - everything has its place - I do think that getting away from structured speed for a few months speeds (pun intended) results. Anyway, rather than wasting you mental energy timing your rep, always try to lift explosively. Increasing bar speed will force you to amplify recruitment of fast-twitch muscle. This simple trick will affect your body in profound ways. Orginal Article -

Rethinking How Muscle Growth In Weightlifting Happens

Common injuries are sprains, strains, tendinitis, fractures and dislocations. Over time, improper technique can develop chronic injuries such as nerve damage, rotator cuff damage, muscle overload and bone stress issues. These injuries will, at least, cause a temporary halt of training. Serious injuries could interrupt training for months. Additionally, teens should avoid supplements that affect testosterone or growth hormone, according to Teen Bodybuilding. Misconceptions The leading misconception concerning teen weight training is that it will stunt growth. There have been no documented studies to prove this. Girls often fear that weight training will make them bulky and masculine, or stiff and muscle bound. Neither is true, notes Teen Bodybuilding. Orginal Article -

Gain Muscle Fast

The rest of the force, he says, should be credited to the lattice work of filaments as it expands outward in bulging muscle whether in a body builder's buff biceps or the calves of a sinewy marathon runner. "One of the major discoveries that David Williams brought to light is that force is generated in multiple directions, not just along the long axis of muscle as everyone thinks, but also in the radial direction. This aspect of muscle force generation has flown under the radar for decades and is now becoming a critical feature of our understanding of normal and pathological aspects of muscle," said co-author Thomas Daniel, University of Washington professor of biology and one of Williams' advisers while they did the work. C. David Williams created a 3-D computer model of filaments of myosin (in red) reaching out and tugging along filaments of actin (in blue, looking like stands of pearls twined together) during the contraction of a muscle. The model allowed researchers to consider the geometry and physics at work on the filaments when a muscle bulges. Credit: D Williams/University of Washington "In the heart especially, because the muscle surrounds the chambers that fill with blood, being able to account for forces that are generated in several directions during muscle contraction allows for much more accurate and realistic study of how pressure is generated to eject blood from the heart," said co-author Michael Regnier, a bioengineering professor at University of Washington. "The radial and long axis forces that are generated may be differentially compromised in cardiac diseases and these new, detailed models allow this to be studied at a molecular level for the first time. They also take us to a new level in testing therapeutic treatments targeted to contractile proteins for both cardiac and skeletal muscle diseases." Williams developed computer models to consider the geometry and physics at work on the filaments at all those points. "The ability to model in three dimensions and separate the effects of changes in lattice spacing from changes in muscle length wouldn't even have been possible without the advent of cloud computing in the last 10 years, because it takes ridiculous amounts of computational resources," Williams said. Orginal Article -