Tag: other sports

Is Static Stretching the Key to Muscular Gains?

In the present day, it can seem as though nearly every young person wants to be muscular. Phrases such as “winter arc” or “the bulk” are frequently used on social media platforms to describe people changing their physique through weight training. With this resurgent fitness craze, it is evident that there are many gym-goers who are actively looking for ways to maximize muscular growth gains. Researchers have recently discovered that one unconventional method for making those gains is through static stretching.

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Static Stretching Explained

Static stretching, which entails maintaining a stationary position where a muscle is at full extension, has often been a topic of discussion in weightlifting communities in years past. There have been many unsettled debates on whether or not stretching techniques can improve strength performance and muscle size. In recent years, however, new studies have been conducted which may point towards the potentially massive benefits of static stretching for muscle growth.

The current understanding is that static stretching induces mechanical stresses, primarily tension, on the muscles of the body. If performed for a long enough duration, this induced stress can lead to muscle hypertrophy. During hypertrophy, the organelles inside of muscle fibers, called myofibrils, which are made up of actin and myosin proteins surrounded by a gel like substance called sarcoplasm, experience some damaging and deformation. In the reconstruction process, new proteins are then generated through muscle protein synthesis, which causes the myofibrils to become thicker and denser, ultimately leading to increased strength. Thus, to achieve any significant muscle growth, hypertrophy must be reached.

First Human Testing

Man performing a static stretch of his calf using a stretching device while seated.
Stretching device utilized for prolonged holds (Obtained from Warneke et al. 2022)

Multiple studies within the last two years have demonstrated that prolonged static stretching in humans can lead to similar levels of muscle hypertrophy in comparison to traditional weight lifting methods. One such study conducted by Wohlann et al. concluded that multiple fifteen minute stretching sessions focused on the pectoral muscles had a nearly equivalent increase in muscle strength when compared to performing traditional weighted exercises concentrated on the same muscles. Another study, by Warneke et al. obtained similar results with the plantar flexors, although in this case the static stretch was held for one hour every day. These findings indicate that regardless of the mechanism or method for creating stress, as long as muscle fibers are kept in constant tension there can be hypertrophy and thereby growth.

To achieve constant stress, the studies mentioned utilized external loads and re-adjusted positioning. Study participants would strap into simple devices which allowed for continual tightening as their muscles loosened over time after being initially stretched. Although uncomfortable to maintain, this constant stress is crucial for breaking down the myosin proteins. Only after the proteins are broken down mechanically does the body generate an inflammatory response which signals to begin the repairing process.

Graph showing the re-tightening of stretched muscles over time. Y axis is Measured Tensile force in Newtons and X-axis is measurement times. Whenever the force decreases substantially is when the device is retightened.
Graph of tension force over time from stretching device (Obtained from Wohlann et al. 2024)

Current Applications

Although the practicality of static stretching as a primary means of achieving muscle growth still remains in question, there is no doubt that the potential benefits of stretching are much greater than sole flexibility. These findings grant deeper insights into the large role tension plays in muscle growth which can be taken and applied to weight training. As more research is conducted, it is highly possible that the answer to the long-asked question of how to achieve maximum hypertrophy may involve some combination of traditional weight lifting techniques and more novel static stretching holds.

Additional Reading:

Muscular Hypertrophy

Myofibril Structure

Feature photo by Andrea Piacquadio from Pexels.

Limiting Repetitive Subconcussive Impacts in Rugby

It is no secret the danger head injuries can pose for player safety in contact sports. While the public is aware of the danger of large hits and concussions, many remain unaware of the danger small blows to the head can have on an individual. Formally, these incidents are known as subconcussive impacts, which are defined as blows to the head that result in mild brain trauma without the presentation of typical concussion symptoms. Recent studies have indicated repetitive subconcussive impacts can lead to cumulative, long-term brain damage. This discovery has been increasingly alarming for rugby players who can average 77 of these impacts per game! With the discovery of this newfound danger, the question must be asked: what is being done to protect at risk rugby players?   

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Are We Fumbling the Ball on Player Safety?

an opposing team's football player tackling another football player by the legs
A football player tackling an opposing team’s player by the legs. Photo by KeithJJ on Pixabay.

Sports fans, especially those that watch college football (CFB) and the National Football League (NFL), are familiar with players going on “concussion protocol”. The consistent and often violent hits endured each game prompts the discussion of traumatic brain injuries players may experience trying to make a catch or tackle an opponent.

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Bend it like Beckham?: Genu Varum (Bow Leg) in Soccer Players

Soccer, or football for those outside of the United States of America, is the most popular sport in the world, and its popularity is only rising. In the United States, although soccer is not the most popular sport, it is growing rapidly. Part of the reason behind this growth, around 20% American parents think soccer to be a safer sport for their children to play compared to American football. However, soccer players still suffer injuries.

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Nature vs. Nurture: who is responsible for bone shape?

A figure showing muscles acting on a skeleton during a tennis serve
Figure adapted from Taylor et. al

Bones are more than just spooky installments – they are the structural elements of the human body, like the steel girders of a skyscraper. They contain calcium-rich minerals and collagen fibers which are usually aligned along the long axis of the bone, known as the major axis. As a result, bones typically have material properties that are stronger in the axial direction. Nowadays, human bones can regularly experience forces much larger than loads that were experienced thousands of years ago. Especially in sports like powerlifting, these loads may be applied to bones in directions different than normally experienced during development. How does this affect bone structure in athletes today?

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How Lower Body Mechanics Unlock Performance in the Pitching Delivery

Why can some pitchers throw 105 mph and some only 85? Baseball players are continuously trying to throw the ball faster and hit the ball further. The lower body muscles, especially the gluteus maximus/medius, adductors and and other pelvic movers, are essentially what power the throw and what can directly increase pitch velocity. Learning how to efficiently use the muscles in the lower body while pitching will allow players to optimize their performance, train correctly off the field, and prevent injuries.

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They need some milk! The Link between Cycling and Osteoporosis

Athletes often are pestered about the importance of cross training by coaches and trainers alike. Football players work on flexibility through ballet. Runners, who primarily train in forward movements, practice calisthenics to build up their lateral strength. Similarly, cyclists are encouraged to participate in some contact-related activity. These are all good reasons for why athletes should cross-train, but will something actually happen if they refuse to cross-train? It’s crossed every athlete’s mind, from professionals to enthusiasts: “What’s the worst that could happen?”.

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Ski Racing: Where Champions are Made on the Course and in the Lab

If you have ever watched the winter Olympics, you have probably watched in awe as the alpine ski racers flew down the course. Years of training to perfect technique and build strength are essential for any athlete trying to compete with the best, but in a sport where hundredths of a second can separate first and second place, racers are always looking for ways to shave time. Understanding the forces that slow them down and their relationship to body positioning gives these athletes a competitive advantage.

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How to Optimize Biomechanics Forces of Olympic Giant Slalom Skiers

            Do you ever wonder what differentiates a casual skier from an Olympic level skier? The distinction lies in the immense forces these Olympic skiers’ output as they naturally transition from incredibly high speeds to sharp turns on the icy slopes. The four famous alpine skiing events held at the Winter Olympics are the slalom, giant slalom, downhill, and super-G events. In these events the human body is pushed to its limit with skiers experiencing forces of up to 2000N during turns through closely spaced poles and gates. Which is the equivalent of a 440-pound weight laying on top of you. These forces are integral in achieving faster times, better technique, and winning Olympic gold. How can these forces and techniques be optimized for the best possible ski run?

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