Running
Running is a dynamic physical activity that allows individuals to traverse distances more swiftly than walking. It is characterized by a gait where both feet momentarily leave the ground between strides, enabling a range of speeds from jogging to competitive sprinting. Historically, running has deep roots, with evidence suggesting that humans developed the ability to run over two million years ago, possibly as an adaptation to hunting. This evolution has contributed to physical changes in human anatomy that facilitate long-distance running.
Running serves both as a recreational activity and a competitive sport, encompassing a wide range of events from sprints to marathons, with origins tracing back to ancient civilizations such as Greece. While engaging in this activity has numerous health benefits—including improved cardiovascular fitness and mood enhancement—it's also associated with various injuries, often due to improper technique or overtraining. Runners are encouraged to adopt good posture and proper foot strike patterns to minimize injury risk. With minimal equipment required, running is accessible to many and can be practiced almost anywhere, making it a popular choice for fitness and competition alike.
Running
Running is a physical activity that allows people to cover distances at a more rapid pace than walking. Running is usually classified as a gait in which both of the runner’s legs are in the air between strides, whereas a person who is walking almost always has one foot touching the ground. A person who is running also keeps their legs straighter than when walking. Running can refer to a variety of speeds, including fast-paced sprinting and slower-paced jogging. Competitive running covers distances as short as 100 meters and as far as 300 kilometers in endurance sports such as the twenty-four-hour ultramarathon. Running is also a significant factor in other competitive sports, such as basketball and soccer.
Brief History
Based on fossil evidence, scientists believe that the ability to walk on two feet (bipedalism) evolved more than four million years ago, and that humans gained the ability to run about two million years ago. Some biologists have suggested that the evolution of humans was driven by adaptations for long-distance running. The adaptations that gave human ancestors the ability to run long distances are thought to have developed because they facilitated the hunting technique of chasing faster prey until it became too exhausted to flee. As a result of these adaptations, other physical changes evolved, including larger glutei maximi, longer legs, longer and thicker tendons such as the Achilles tendon, and larger kneecaps and other joint surfaces in the lower body.
Running as a competition developed in several ancient cultures in Asia, Africa, and, most famously, Greece. Agriculture and animal husbandry eventually replaced the need to chase animals over long distances while hunting, and it is likely that competitive running developed after these societal advancements, although the dates and origins of the earliest competitive races are unknown. The Sed festival in ancient Egypt included a running course. The Greek Olympics were first recorded in 776 BCE, and at first the only Olympic events were foot races. The renowned Greek physician Hippocrates (ca. 460–370 BCE) recommended running as a way to improve one’s health.
The Anatomy of Running
Running is typically divided into three phases: the stance, float, and swing phases. The stance phase occurs when one foot is in contact with the ground, the float phase occurs when neither leg is in contact with the ground, and the swing phase occurs when the other leg swings forward. The entire gait cycle of a runner includes two cycles of the stance, float, and swing phases, alternating between the legs.
When the foot makes contact with the ground, it is called foot strike. Foot-strike patterns vary based on a runner’s speed, running surface, footwear, and training. There are two main foot-strike types: the forefoot strike and the heel strike. The heel-strike pattern tends to be favored by runners who wear running sneakers; the cushioning of the shoe absorbs most of the impact from the heel strike, lessening the risk of injuries such as stress fractures. On the other hand, the forefoot strike is more typical among barefoot runners, as the arch of the foot absorbs most of the impact.
Midstance occurs when the leg in contact with the ground is directly under the body. At this time, the body is propelled forward and extension of the knee joint occurs to move the body forward. This continues until the leg is fully extended behind the body. The forces on the body are at their peak when a runner is in midstance, with loads of more than twice one’s body weight bearing down on the joints of the hip, knee, ankle, and foot. Many running injuries occur while a runner is in midstance, and good technique and proper form can reduce one’s risk of injury.
Good Technique and Common Injuries
Runners should try to be relaxed and keep a straight posture to keep their core muscles engaged. Furthermore, maintaining good posture while running can prevent a runner from overstriding, which occurs when the foot hits the ground well ahead of the knee. Overstriding is a leading cause of injury. Runners are advised to loosen their hands rather than clench them to encourage the entire body to relax. Runners should also try to keep their elbows bent at 90 degrees or less and keep them close to the torso. The arms should swing forward and back rather than across the body, which can cause the shoulders to rotate and reduces core stability. Runners are also encouraged to focus on landing on the ground lightly and leading with their hips rather than their chests or shoulders to maintain proper form.
However, proper form varies from runner to runner depending on their body type, footwear, running surface, and type of running. For example, one of the main differences between long-distance and short-distance runners is the length of the stride, which is the amount of ground covered in one step. Long-distance runners typically have a much longer stride length than short-distance runners. Cadence describes a runner’s step rate, or the number of footfalls per minute. Increasing one’s cadence can reduce the likelihood of overstriding and minimize joint stress.
Some running injuries develop more frequently depending on the running surface, with cement sidewalks being one of the most injurious. The slight slope on the side of a paved road can also contribute to injuries over time. Many experts recommend that runners vary their terrain on an occasional basis. Another way to avoid injury is to improve one’s overall strength, which helps to improve one’s form and braces the body against the ground impact. Strong core and gluteal muscles help to stabilize the pelvis and leg, reducing the likelihood of knee, ankle, and hip injuries.
There are a number of common running injuries, such as patellofemoral pain syndrome, medial tibial stress syndrome ("shin splints"), iliotibial (IT) band syndrome, Achilles tendonitis, plantar fasciitis, and stress fractures. Dramatic increases in the frequency, duration, or intensity of one’s runs are a leading cause of injuries. Continuous stress without rest days can lead to many of these issues. Warming up, stretching, using proper form, and doing strength-building exercises can greatly help runners avoid injuries. Replacing old, worn-out shoes can also reduce the likelihood of certain injuries. Chafing is also common and occurs when skin rubs against something, such as a shirt or another part of the body. Often, this will develop between the runner’s upper thighs and it can look like a rash. If a runner experiences an injury, ice, ibuprofen, and resting can help them heal more quickly.
Benefits of Running
Some of the benefits associated with running include improved respiratory health, strengthening of bones and muscles, increased cardiovascular fitness, increased calorie burn, and more. Running can improve one’s mood and increase self-esteem. Many runners claim to experience a sense of euphoria called a "runner’s high," and high-intensity workouts have been shown to release endorphins and endocannabinoids in the brains of runners. Running can also increase one’s overall fitness, endurance, and speed, which can improve performance in several other sports. Furthermore, running does not require expensive equipment and can be undertaken in most places.
Running Events and Competitions
Running has been considered a competitive sport since ancient times. It is most commonly divided into events by distance and may include obstacles such as hurdles. The fastest recorded human footspeed was accomplished by Usain Bolt at 27.8 miles (44.7 kilometers) per hour between the 60- and 80-meter marks during a 100-meter sprint at the 2009 World Championships in Athletics in Berlin, where Bolt also set a world record of 9.58 seconds for the men’s 100 meters.
Track running is usually divided into sprinting, middle-distance, and long-distance. Individual and relay races are also common at track-and-field events. Road running often features a course that follows streets and includes events such as half-marathons (13.1 miles, or 21.1 kilometers) and marathons (26.2 miles, or 42.2 kilometers). These are similar to cross-country events, which tend to take place over more difficult terrain, such as a trail.
Sprinting is typically done over short distances during track-and-field events. There are three types of sprinting races that are held at the Summer Olympics. These include the 100-meter, the 200-meter, and the 400-meter races. Middle-distance running covers distances of 800 meters, 1,500 meters, and 3,000 meters. Long-distance running covers distances of 5,000 and 10,000 meters as well as marathons and ultramarathons. Many road races are open to the public and cover a variety of distances, while some road races are used as charity events to raise money for a specific cause.
Bibliography
Cheever, Benjamin. Strides: Running through History with an Unlikely Athlete. Rodale, 2007.
Daniels, Jack. Daniels’ Running Formula. 4th ed., Human Kinetics, 2022.
Mackie, Joe, and Kate Carter. "How to Avoid Running Injuries." Runner's World, 30 May 2023, www.runnersworld.com/uk/health/injury/a30281450/avoid-running-injuries/. Accessed 20 Dec. 2024.
Nicola, Terry L., and David J. Jewison. "The Anatomy and Biomechanics of Running." Clinics in Sports Medicine, vol. 31, no. 2, 2012, pp. 187–201.
Pfitzinger, Pete. Faster Road Racing: 5K to Half Marathon. Human Kinetics, 2015.
Sears, Edward S. Running through the Ages. MacFarland, 2009.
Van Allen, Jennifer, and Monique Lebrun. "All the Benefits of Running You Can Gain for Your Body and Mind." Runner’s World, 20 Dec. 2024, www.runnersworld.com/beginner/a20847956/benefits-of-running/. Accessed 20 Dec. 2024.
Ward, Tom. "14 Expert Tips for Improving Your Running Game." GQ, 14 Sept. 2022, www.gq-magazine.co.uk/fitness/article/how-to-improve-your-running-stamina-endurance. Accessed 20 Dec. 2024.