Spine Specialist Team: Agility & speed are necessary for athletes and individuals who actively engage in physical activity and sports. These individuals often depend on these abilities to increase their overall performance. Quickly and gracefully, both mental and physical skills are often a key element towards overcoming challenges related to the individual’s specific sport. The key to improving agility is to minimize the loss of speed when redirecting the body’s center of gravity.
Rapid change drills that change direction forward, backward, vertically, and laterally will help improve individuals by training your body to make these changes more quickly. Dr. Alex Jimenez describes various stretches and exercises utilized to enhance agility and speed throughout his collection of articles, focusing largely on the benefits of fitness and occasional injuries or conditions resulting from overexertion.
Fitbits and other wrist-worn fitness devices promise to keep track of your heart rate, but new research suggests they are less accurate than thought during certain exercises.
“If you need to know your heart rate with accuracy when exercising — either because you are training for a marathon or have safe heart rate limits set by your doctor, perhaps due to coronary artery disease, heart failure or other heart conditions — wrist-worn monitors are less accurate than the standard chest strap,” study author Dr. Marc Gillinov said in an American College of Cardiology news release.
The heart rates on the wrist-worn devices were compared to those from a continuous 4-lead electrocardiogram (EKG) and a chest strap monitor. Like an EKG, the chest strap measures electrical activity of the heart.
Functioning Errors in Heart Rate Trackers
Depending on the type of activity, the wrist devices were up to 34 beats a minute off. The wrist trackers could either overestimate or underestimate heart rate, Gillinov said. He’s a heart valve research, thoracic and cardiovascular surgery expert at the Cleveland Clinic.
The study included 50 volunteers. Their average age was 38. They tested popular wrist-worn fitness trackers, including the Apple Watch, Fitbit Blaze, Garmin Forerunner 235, and TomTom Spark Cardio.
The volunteers’ heart rates were recorded at rest and after light, moderate and vigorous exercise on a treadmill, stationary bike and elliptical trainer. All of them exercised for 18 minutes.
The chest strap monitor closely matched the readings from the EKG, which is the gold standard for measuring heart rate. And the wrist-worn devices were fairly accurate when a person was at rest. Most wrist devices gave acceptable readings during treadmill activity, but were fairly inaccurate while bicycling or using the elliptical, the study revealed.
Fitbit’s maker took issue with the findings.
“We stand behind our heart-tracking technology. Fitbit trackers are not intended to be medical devices,” Fitbit said in a statement. “Unlike chest straps, wrist-based trackers fit conveniently and comfortably into everyday life, providing continuous heart rate for up to several days without recharging [the device’s batteries].”
The San Francisco-based company added that internal studies involving 60 volunteers showed the device has an average error of 6 percent or less for measuring a person’s heart beat. And the Fitbit was tested against devices like the chest strap during walking, running, biking, using the elliptical and more, the company added.
Of all the wrist devices tested, the Apple watch seemed to fare the best. It performed well during bicycling and on elliptical machines without arm levels. The Apple watch’s heart rate monitor was only noticeably inaccurate compared to the chest strap when used on an elliptical machine with arm levers, the researchers said.
Why Are There Heart Rate Tracker Inaccuracies?
Wrist-worn devices use optical sensing, or light, to measure blood flow, the researchers said.
“It’s not measuring what the heart does, but rather blood flow — basically the volume of blood in the tissue,” Gillinov explained.
Wrist-worn devices also introduce many more variables that can result in incorrect readings, including insufficient contact with the skin due to sweating, poor fit or skin color, he said.
“Even though all these wrist-worn monitors work by the same general principles, there is considerable variation among them,” he said. “Overall, they were most accurate when someone was using the treadmill at low intensity and worst when exercising on the elliptical at high intensity,” Gillinov added.
The study is to be presented at the upcoming annual meeting of the American College of Cardiology, in Washington, D.C. Findings presented at meetings are typically viewed as preliminary until they’ve been published in a peer-reviewed journal.
SOURCE: American College of Cardiology, news release, March 8, 2017
For more information, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
Preventing Sports Injuries
Many athletes largely depend on chiropractic care to enhance their physical performance. New research studies have determined that aside from maintaining overall health and wellness, chiropractic can also help prevent sports injuries. Chiropractic is an alternative treatment option utilized by athletes to improve their strength, mobility and flexibility. Spinal adjustments and manual manipulations performed by a chiropractor can also help correct spinal issues, speeding up an athlete’s recovery process to help them return-to-play as soon as possible.
The body is meant to move. Muscles allow that movement to happen by contracting and making joints flex, extend and rotate. Muscles attach on each side of the joint to bone by thick bands of fibrous tissue called tendons. When a muscle contracts, it shortens and pulls on the tendon, which allows the joint to go through a range of motion.
A strain occurs when the muscle tendon unit is stretched or torn. The most common reason is the overuse and stretching of the muscle. The damage may occur in three areas:
The muscle itself may tear.
The area where the muscle and tendon blend can tear.
The tendon may tear partially or completely (rupture).
Joints are stabilized by thick bands of tissue called ligaments which surround them. These ligaments allow the joint to move only in specific directions. Some joints move in multiple planes; therefore, they need more than one group of ligaments to hold the joint in proper alignment. The ligaments are anchored to bone on each side of the joint. If a ligament is stretched or torn, the injury is called a sprain.
Causes of Sprains and Strains
Sprains and strains occur when the body is put under stress. In these situations, muscles and joints are forced to perform movements for which they are not prepared or designed to perform. An injury can occur from a single stressful incident, or it may gradually arise after many repetitions of a motion.
Signs and Symptoms of Sprains and Strains
The first symptom of a sprain or strain injury is pain. Other symptoms, such as swelling and spasm, can take time (from minutes to hours) to develop.
Pain is always a symptom that indicates that there is something wrong with the body. It is the message to the brain that warns that a muscle or joint should be protected from further harm. In work, exercise, or sport, the pain may come on after a specific incident or it may gradually progress after many repetitions of a motion.
Swelling almost always occurs with injury, but it may take from minutes to hours to be noticed. Any time fibers of a ligament, muscle, or tendon are damaged, some bleeding occurs. The bleeding (such as bruising on the surface of the skin) may take time to be noticed.
Because of pain and swelling, the body starts to favor the injured part. This may cause the muscles that surround the injured area to go into spasm. Hard knots of muscle might be felt near the site of the injury.
The combination of pain, swelling, and spasm causes the body to further protect the injured part, which results in difficulty with use. Limping is a good example of the body trying to protect an injured leg.
For more information, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
Preventing Sports Injuries
Many athletes largely depend on chiropractic care to enhance their physical performance. New research studies have determined that aside from maintaining overall health and wellness, chiropractic can also help prevent sports injuries. Chiropractic is an alternative treatment option utilized by athletes to improve their strength, mobility and flexibility. Spinal adjustments and manual manipulations performed by a chiropractor can also help correct spinal issues, speeding up an athlete�s recovery process to help them return-to-play as soon as possible.
Focusing too much on playing one favorite sport probably isn’t a good idea for kids under 12, researchers report. That’s because specializing in a single sport seems to increase a child’s risk of injury, researchers say.
“Young athletes should participate in one competitive sport per season, and take at least three months off (non-consecutive) from competition per year,” said the study’s leader, Dr. Neeru Jayanthi. He’s a physician with Emory Sports Medicine and an associate professor of orthopaedics and family medicine at Emory University in Atlanta.
For the study, Jayanthi’s team assessed the risk of sports-related injuries among nearly 1,200 young athletes. After tracking their training schedules over the course of three years, the investigators found that nearly 40 percent of the athletes suffered an injury during the study period. The findings also showed that injured athletes began specializing in one sport at an average age younger than 12 years. In addition, nearly two-thirds of these athletes in highly specialized sports sustained a repeat injury. Athletes who didn’t sustain injuries began to focus on one sport when they were older than 12, on average, according to the report.
“While different for each sport, determining a possible age of specialization, as well as other training factors, may help guide young athletes in reducing risk,” Jayanthi said in an Emory news release.
Young athletes who had sports-related injuries during the study period tended to play more year-round sports, played more organized sports each week and were more specialized in specific sports than those who didn’t have an injury, the researchers found. The study authors advise young athletes to play more than one sport. In addition, they said, younger children shouldn’t train more hours than their age each week.
The study was published online March 16 in the British Journal of Sports Medicine. The findings were also presented Thursday at the International Olympic Committee World Conference on Prevention of Injury and Illness in Sport, in Monaco.
SOURCE: Emory University School of Medicine, news release, March 13, 2017
For more information, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
Preventing Sports Injuries
Many athletes largely depend on chiropractic care to enhance their physical performance. New research studies have determined that aside from maintaining overall health and wellness, chiropractic can also help prevent sports injuries. Chiropractic is an alternative treatment option utilized by athletes to improve their strength, mobility and flexibility. Spinal adjustments and manual manipulations performed by a chiropractor can also help correct spinal issues, speeding up an athlete’s recovery process to help them return-to-play as soon as possible.
Female soccer players suffer the highest rate of concussions among all high school athletes in the United States, a new study finds.
“While American football has been both scientifically and colloquially associated with the highest concussion rates, our study found that girls, and especially those who play soccer, may face a higher risk,” said study author Dr. Wellington Hsu. He is a professor of orthopaedics at Northwestern University in Chicago.
“The new knowledge presented in this study can lead to policy and prevention measures to potentially halt these trends,” Hsu said in a news release from the American Academy of Orthopaedic Surgeons.
The researchers analyzed data on nearly 41,000 injuries suffered by high school athletes in nine sports between 2005 and 2015. The injuries included nearly 6,400 concussions. The sports studied included football, soccer, basketball, wrestling and baseball for boys; and soccer, basketball, volleyball and softball for girls. During the study period, participation in the sports rose 1.04-fold, but the number of diagnosed concussions increased 2.2-fold.
In sports played by both girls and boys, girls had much higher concussion rates than boys, Hsu’s team found. Between 2010 and 2015, the concussion rate was higher in girls’ soccer than in boys’ football, the findings showed. During the 2014-2015 school year, concussions were more common in girls’ soccer than in any other sport in the study.
Girls may be at greater risk of concussion while playing soccer due to “heading” the ball, a lack of protective gear, and an emphasis on contact during the game, the researchers suggested.
Each year, about 300,000 U.S. teens suffer concussions or mild traumatic brain injuries while participating in high school sports, the study authors said.
The findings were presented Tuesday at the American Academy of Orthopaedic Surgeons meeting in San Diego. Research presented at meetings should be considered preliminary until published in a peer-reviewed journal.
SOURCE: American Academy of Orthopaedic Surgeons, news release, March 14, 2017
For more information, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
Additional Topics: Headache and Auto Injury
Whiplash is a common type of automobile accident injury. Characterized by symptoms of neck pain, whiplash is caused when the complex structures and tissues of the neck are stretched beyond their limit as a result of an abrupt back-and-forth motion of the head. While neck pain is the most common symptom associated with the auto injury, headaches can also occur due to complications along the cervical spine.
“Runners need an incredible amount of nourishment to stay healthy, since running puts stress on not only muscles but every system in our body,” notes Elyse Kopecky, a chef, nutrition coach, and coauthor (with four-time Olympian Shalane Flanagan) of Run Fast. Eat Slow. “We often obsess about having the right amount of protein, carbs, and fat in our diet while forgetting about important micronutrients, including vitamins and minerals like iron, magnesium, potassium, and calcium, all of which can become depleted from distance training.”
Her post-run smoothie to replenish muscle stores and restock nutrients: whole-milk yogurt, frozen blueberries and banana, peeled carrot, a handful of kale, ginger, coconut water (or regular water), and coconut oil.
Working out in the gym is great, but even the biggest treadmill loyalists can get bored on the moving belt. Our advice? Mix up your sweat sessions whenever you can. Introducing different types of movement into your fitness routine can actually help you get in shape faster because they challenge your muscles in new ways.
That�s why we love with this samba reggae dance workout. It�s a total change of pace from your standard barre class. And you don�t need to be a pro dancer to try the moves either.
Samba Workout
In the video, dance teacher Quenia�Ribeiro, of the�renowned dance school Ailey Extension demonstrates basic samba reggae moves that work up a solid sweat. Ready to get down and groove? Follow along for a heart-pumping, fat-blasting workout you�ll actually have fun doing.
Samba reggae basic step: Standing with your feet slightly wider than hip-width, bounce from one foot to the other, moving your hips from side to side as you bounce.
The snake: Adding on to the basic step, roll your upper body and arms in a snake-like movement to the right as you step to the right side. Clap as you return your torso to center, then repeat on the left.
The shake: Standing with your feet slightly wider than hip-width, step your right leg out to the side as you sit into a squat and pop the hips forward and back. Continue to stay low as you repeat this movement on the other side, stepping out with the left leg. Stay loose in the hips as you alternate stepping out onto each leg.
Cross-and-pull: From standing, step and cross the right leg over the left as you pull the right arm down in front of the body. Return to center and repeat on the left. Bounce from side to side as you alternate doing this cross-and-pull movement on the left and right.
Window washers: Standing with your feet slightly wider than hip-width, shift your weight as you bounce your hips from one side to the other, holding your arms out to each side and moving them in quick circular movements, as if washing windows.
The bodies of runners who put in a lot of mileage appear to be more efficient at running compared to those who run less, a new study finds. Jasper Verheul and colleagues at Liverpool John Moores University in the United Kingdom compared two groups of runners. One group ran more than 27 miles a week, the other group ran fewer than nine miles a week.
Anatomy of Runners
The researchers examined the activity of muscle groups in the thigh and the motion of knee joints with a variety of tools as the participants ran at different speeds during the research study.
“Given the importance of the knee joint in running, it was hoped that by examining knee joint stiffness and muscle activation levels across a range of running speeds, the adaptations of neuromuscular factors due to running training could be closely explored for the first time,” the researchers wrote.
When their feet landed on the ground, the knees of the runners who put in the most miles had less muscle activity and more stiffness. The researchers also saw that the tendons in the high-mileage runners worked more efficiently at pushing the body forward.
“From this, we concluded that high-mileage training leads to changes in the muscles and tendons that likely reduce energy expenditure during running, and these adaptations are enhanced the faster you go,” the researchers said.
The study appeared in the Journal of Applied Physiology.
News stories are written and provided by HealthDay and do not reflect federal policy, the views of MedlinePlus, the National Library of Medicine, the National Institutes of Health, or the U.S. Department of Health and Human Services.
For more information, please feel free to ask Dr. Jimenez or contact us at 915-850-0900 .
Additional Topics: Chiropractic and Athletic Performance
The prevention of sports injuries through the practice of proper stretches and exercises is essential for athletes. When an injury caused by an accident does occur however, many athletes seek chiropractic care to help diagnose and treat any possible sport-related injuries and conditions. Chiropractic treatment focuses on the prevention, diagnosis and treatment of injuries and conditions associated with the musculoskeletal and nervous system through the use of spinal adjustments and manual manipulations. Chiropractic is beneficial for many athletes’s performance.
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