The research was presented at the Heart Failure Congress 2012, 19-22 May, in Belgrade, Serbia. The Congress is the main annual meeting of the Heart Failure Association of the European Society of Cardiology.
Aerobic exercise in patients with heart failure improves quality of life and reduces heart failure related hospitalisations. However, many heart failure patients find it difficult to exercise. In Nordic walking, people use poles and their arms copy the motions of cross country skiing. It is one of the fastest developing forms of physical activity in Europe and is safe for older patients, especially those above the age of 65, making it a good possibility for patients with heart failure.
For the study (abstract P939) 12 patients with heart failure and 12 healthy adults did two submaximal six-minute walking tests on a level treadmill at a constant speed of 5km per hour. Participants did one test with Nordic walking poles and one without.
The researchers compared the cardiorespiratory responses during walking with and without poles. In the healthy group, compared to walking without poles Nordic walking increased oxygen consumption (VO2) by 4.9 ml/kg/minute (a median increase of 37%) and led to a higher respiratory quotient (median increase of 5%). Peak heart rate was 20 beats per minute higher, maximal systolic blood pressure (BP) was 15 mmHg higher, and fatigue level was increased by 2 points on the Borg Scale. All results were significant (p=0.05).
In patients with heart failure, compared to walking without poles Nordic walking increased VO2 by 2.9 ml/kg/minute (14.7%) and respiratory quotient by 18%. Peak heart rate was 15 beats per minute higher, maximal BP was 10 mmHg higher, and fatigue level was increased by 2 points. All results were significant (p=0.05).
In both the healthy group and patients with heart failure, there were no signs of cardiac ischaemia and no significant arrhythmias during the tests.
The researchers concluded that Nordic walking allows healthy people and patients with heart failure to safely increase the intensity of exercise and gain additional cardiorespiratory benefits from exercise.
"In Nordic walking we have a big workload because we use additional muscle groups," says lead author Andrzej Lejczak, a physiotherapist at the Military Hospital in Wroclaw, Poland, and a PhD student at the University School of Physical Education in Wroc³aw. "We walk with four limbs, so we're exercising our arms and legs at the same time - that's why we have such a beneficial response."
He adds: "The implication is that Nordic walking is safe to include in cardiac rehabilitation programmes for patients with heart failure."
Patients simply need to purchase Nordic walking poles, which cost about €50, then take two or three one-hour lessons. After that they can exercise on their own outdoors, without needing to visit the gym.
Previous studies by Mr Lejczak have shown that Nordic walking improves quality of life, aerobic capacity and physical fitness in heart failure patients.
References"Poster session 3: Exercise testing & training" Poster Session – Poster Area
Heart Failure2012 is the annual meeting of Heart Failure Association (HFA) a registered branch of the European Society of Cardiology (ESC). HeartFailure2012 takes place 19 to 22 May 2012 at Sava Centar, Belgrad – Serbia. The full scientific programme is accessible here.About Heart Failure 2012 Registration
ESC Press Office | EurekAlert!
A whole-body approach to understanding chemosensory cells
13.12.2017 | Tokyo Institute of Technology
Research reveals how diabetes in pregnancy affects baby's heart
13.12.2017 | University of California - Los Angeles Health Sciences
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
13.12.2017 | Health and Medicine
13.12.2017 | Physics and Astronomy
13.12.2017 | Life Sciences