Dr. Alex Jimenez, El Paso's Chiropractor
I hope you have enjoyed our blog posts on various health, nutritional and injury related topics. Please don't hesitate in calling us or myself if you have questions when the need to seek care arises. Call the office or myself. Office 915-850-0900 - Cell 915-540-8444 Great Regards. Dr. J

Some Heart Rate Trackers May Work Inaccurately

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, 2017blog picture of a green button with a phone receiver icon and 24h underneath

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.

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Dr. Alexander Jimenez ♛
Advanced Chiropractic & Wellness Authority ⚕ Healthcare Educator • Injury, Sciatica Specialist • 915-850-0900 📞
We Welcome You 👊🏻.
Purpose & Passions: I am a Doctor of Chiropractic specializing in progressive, cutting-edge therapies and functional rehabilitation procedures focused on clinical physiology, total health, practical strength training, and complete conditioning. We focus on restoring normal body functions after neck, back, spinal and soft tissue injuries.

We use Specialized Chiropractic Protocols, Wellness Programs, Functional & Integrative Nutrition, Agility & Mobility Fitness Training and Cross-Fit Rehabilitation Systems for all ages.

As an extension to effective rehabilitation, we too offer our patients, disabled veterans, athletes, young and elder a diverse portfolio of strength equipment, high-performance exercises and advanced agility treatment options. We have teamed up with the cities premier doctors, therapist and trainers to provide high-level competitive athletes the possibilities to push themselves to their highest abilities within our facilities.

We’ve been blessed to use our methods with thousands of El Pasoans over the last three decades allowing us to restore our patients’ health and fitness while implementing researched non-surgical methods and functional wellness programs.

Our programs are natural and use the body’s ability to achieve specific measured goals, rather than introducing harmful chemicals, controversial hormone replacement, un-wanted surgeries, or addictive drugs. We want you to live a functional life that is fulfilled with more energy, a positive attitude, better sleep, and less pain. Our goal is to ultimately empower our patients to maintain the healthiest way of living.

With a bit of work, we can achieve optimal health together, no matter the age or disability.

Join us in improving your health for you and your family.

It’s all about: LIVING, LOVING & MATTERING! 🍎

Welcome & God Bless

EL PASO LOCATIONS

Central:
6440 Gateway East, Ste B
Phone: 915-850-0900

East Side:
11860 Vista Del Sol, Ste 128
Phone: 915-412-6677

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