scholarly journals Energy expenditure of nordic walking and conventional walking assessed by accelerometer

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
Władysław Mynarski ◽  
Małgorzata Grabara ◽  
Michał Rozpara ◽  
Agnieszka Nawrocka ◽  
Aneta Powerska-Didkowska ◽  
...  

Summary Study aim: the objective was to assess and compare the energy expenditure (EE) and exercise heart rate (EHR) during Nordic Walking (NW), and conventional walking (W) in physical education and tourism/recreation university students. Material and methods: a total of 53 women and 65 men, students at the Academy of Physical Education in Katowice, and Polytechnic in Opole, in Poland, were investigated to assess the EE of Nordic Walking and conventional walking, and to measure the EHR, a uniaxial accelerometer – Caltrac Monitor, and a pulsometer – Polar RS 400 SD were used. After a standard warm-up, the participants (joined group) were marching with poles for 30 minutes, at a speed regulated by the group’s leader, who used footpod’s indications: 5.5–6.5 km/h – in Katowice, and 7.5–8.5 km/h – in Opole. After a break, during which the participants’ heart rate decreased below 100 bpm, the above actions and measurements were repeated, during normal walking. Results: energy expenditure during Nordic Walking (EE NW), expressed in kcals and METs, was in women and in men, at both analyzed speeds, significantly higher (p < 0.05) than during conventional walking (EE W). EHR was higher during NW, compared to W, and the statistically significant differences were revealed both in female’s and male’s groups. Conclusions: our study data have shown that EE and EHR during Nordic Walking, have been significantly higher than during conventional walking, regardless of the moving speed and gender. NW might present a useful modality in prevention of hypokinetic disorders.

Author(s):  
Pooya Soltani ◽  
João Paulo Vilas-Boas

Sports active video games (exergames) are accessible forms of physical activity which might also be used in physical education (PE) curriculum. The purpose of this book chapter is to firstly, review some of the relevant applications of sports exergames for inclusion in PE and secondly, to characterize one of these games (swimming) from different aspects of biomechanics, physiology, and psychology. We compared movement patterns, muscle activation, energy expenditure, enjoyment, usability, and game experience in participants with different performing levels (real-swimmers vs. non-swimmers, experienced vs. novice) and gender. Understanding these parameters may help in the development of more realistic sports exergames and meaningful gameplay and may give PE teachers a better idea of the inclusion of such games in their practice.


2020 ◽  

Introduction: Purpose of this study was to investigate the changes in Tp-e/QTc rates and Tp-e intervals in patients poisoned with tricyclic antidepressants. Methods: 187 patients who were poisoned with tricyclic antidepressants and admitted to our emergency department were included in this study. Control group consisted of 187 healthy individuals with similar age and gender characteristics. All patients underwent 12-lead electrocardiograms (ECG). In addition to QTc measurement, Tp-e/QTc ratios and Tp-e interval were measured in the ECG. Study data were divided two groups as patients and healthy controls. Results: It was found that the QTc interval, Tp-e interval, and Tp-e/QTc ratio were significantly higher in the patient group compared to control group. The analysis demonstrated that QTc interval; Tp-e interval and Tp-e/QTc ratio were independently associated with heart rate. Conclusion: In poisoning with TCAs, the rate of QTc interval, Tp-e/QTc and Tp-e interval has increased and is independently associated with the heart rate in these patients. This may be the precursor of possible fatal ventricular arrhythmias in tricyclic antidepressants.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Michael J. Duncan ◽  
Neil D. Clarke

The aim of this study was to examine the effect of acuteRhodiola rosea(R. rosea) ingestion on substrate utilisation, mood state, RPE, and exercise affect. Ten males (mean age ± S.D. = 26 ± 6 years) completed two 30-minute cycling trials at an intensity of 70% ofV˙O2max⁡following ingestion of either 3 mg·kg−1body mass ofR. roseaor placebo using a double-blind, crossover design. During exercise, heart rate and RPE were recorded. Participants completed measures of mood state and exercise affect before and after exercise. Expired air samples were taken during exercise to determine substrate utilisation. Repeated measures analysis of variance indicated that RPE was significantly lower at 30 minutes into exercise versus placebo (P=0.003). Perceptions of arousal (P=0.05) and pleasure were significantly higher after exercise withR. roseacompared to placebo (P=0.003). Mood state scores for vigor were also higher inR. roseacondition compared to placebo (P=0.008). There were no significant differences in energy expenditure, carbohydrate, or fat oxidation between conditions (P>0.05). Ingestion ofR. roseafavourably influenced RPE and exercise affect without changes in energy expenditure or substrate utilization during 30-minute submaximal cycling performance.


2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Paweł Wolański ◽  
Jarosław Muracki ◽  
Dawid Goliński ◽  
Jarosław Nosal ◽  
Ewa Bakońska-Pacoń ◽  
...  

AbstractPurpose. Futsal is a very dynamic indoor team sport. Like in soccer, futsal players perform a number of efforts of different intensity during a match. In each match there are a few return substitutions to allow players to have some rest. The aim of the study was to assess the intensity and energy expenditure of single efforts and the dynamics of restitution after the efforts during successive futsal matches.Methods. The study consisted in measuring the players′ (n = 11) heart rate (HR) during four matches: A, B, C, D. The HR measurement started during a pre-match warm-up and ended 5 min after the match.Results. The highest intensity of single efforts was noticed in match A. It equalled 90.22 ± 4.90% HRConclusions. The intensity was very high, much higher than that of players′ efforts in 11-a-side soccer. It should be concluded that an appropriate reduction in the time players spend on the pitch during their successive efforts in one match and the consecutive tournament matches can result in reducing the decrease in the effort intensity.


PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0244412
Author(s):  
Christoph Schneider ◽  
Thimo Wiewelhove ◽  
Shaun J. McLaren ◽  
Lucas Röleke ◽  
Hannes Käsbauer ◽  
...  

Purpose To investigate short-term training and recovery-related effects on heart rate during a standardized submaximal running test. Methods Ten elite badminton players (7 females and 3 males) were monitored during a 12-week training period in preparation for the World Championships. Exercise heart rate (HRex) and perceived exertion were measured in response to a 5-min submaximal shuttle-run test during the morning session warm-up. This test was repeatedly performed on Mondays after 1–2 days of pronounced recovery (‘recovered’ state; reference condition) and on Fridays following 4 consecutive days of training (‘strained’ state). In addition, the serum concentration of creatine kinase and urea, perceived recovery–stress states, and jump performance were assessed before warm-up. Results Creatine kinase increased in the strained compared to the recovered state and the perceived recovery–stress ratings decreased and increased, respectively (range of average effects sizes: |d| = 0.93–2.90). The overall HRex was 173 bpm and the observed within-player variability (i.e., standard deviation as a coefficient of variation [CV]) was 1.3% (90% confidence interval: 1.2% to 1.5%). A linear reduction of -1.4% (-3.0% to 0.3%) was observed in HRex over the 12-week observational period. HRex was -1.5% lower (-2.2% to -0.9%) in the strained compared to the recovered state, and the standard deviation (as a CV) representing interindividual variability in this response was 0.7% (-0.6% to 1.2%). Conclusions Our findings suggest that HRex measured during a standardized warm-up can be sensitive to short-term accumulation of training load, with HRex decreasing on average in response to consecutive days of training within repeated preparatory weekly microcycles. From a practical perspective, it seems advisable to determine intra-individual recovery–strain responses by repeated testing, as HRex responses may vary substantially between and within players.


2017 ◽  
Vol 16 (3) ◽  
pp. 197-206 ◽  
Author(s):  
Y. Oh ◽  
L. E. Johnson ◽  
J. R. Olson ◽  
K. R. Shea ◽  
S. Braun

Abstract The purpose of this study was twofold: 1) to discover the differences in degree of energy expenditure (EE) during Just Dance 2015 using Xbox 360 Kinect, Wii-U, PS3 Move, and Control YouTube video; and 2) to uncover whether or not exergaming could elicit moderate to vigorous levels of intensity (≥ 40% Heart Rate Reserve (HRR)) based on heart rate average (HRavg) measurements. Twenty-five healthy college-aged students participated in this study. Data collection was comprised of baseline testing, a 30 second familiarization period with each gaming console, and a gaming session. Participants danced to the song “Love Me Again” on a Just Dance 2015 program on Xbox 360 Kinect, Wii-U, PS3 Move, and a control YouTube. EE and HRR were calculated using FT4 Polar Heart Rate Monitor. One-way repeated measures ANOVA indicated no significant differences in energy expenditure across the consoles, F(2.74, 65.86)=0.65, p=.570. The paired samples t-test indicated the HRavg for the Xbox 360 Kinect (117±18 bpm) was significantly greater than the HRavg for the Control (112±16 bpm), t(24)=3.03, p=.006. About a third (28%-36%) of participants met moderate levels of intensity while exergaming. Dancing on all three major gaming consoles and YouTube video increase energy expenditures and can be used as an alternative form of exercise with the ability to achieve moderate levels of intensity.


2003 ◽  
Vol 28 (3) ◽  
pp. 356-369 ◽  
Author(s):  
Anne Delextrat ◽  
Thierry Bernard ◽  
Christophe Hausswirth ◽  
Fabrice Vercruyssen ◽  
Jeanick Brisswalter

The aim of this study was to investigate the effects of swimming with a wetsuit on energy expenditure during subsequent cycling. Nine well-trained triathletes underwent three submaximal trials. The first trial (SC) consisted of a 750-m swim realised at a competition pace, followed by a 10-min cycling exercise at a power output corresponding to the ventilatory threshold +5%. The two other trials were composed of the same cycling exercise, preceded either by a 750-m swim with a wetsuit (WSC) or by a cycling warm-up (Ctrl). The main results are that the WSC trial was characterised by significantly lower swimming cadence (−14%), heart rate (−11%), and lactate values (−47%) compared to the SC trial, p < 0.05. Moreover, cycling efficiency was significantly higher in the WSC trial compared to the SC trial (12.1% difference, p < 0.05). The lower relative intensity observed during swimming with a wetsuit suggest the relative importance of swimming condition on the total performance in a sprint triathlon. Key words: triathlon, energy cost, cycling efficiency, locomotion


2011 ◽  
Vol 26 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Kåre Karlsson ◽  
Patrik Niemelä ◽  
Anders Jonsson

AbstractIntroduction: Studies have demonstrated the presence of stress and post-traumatic stress among ambulance personnel, but no previous research has focused on the body's reaction in the form of the change in heart rate of ambulance staff in association with specific occupational stress.Hypothesis: The purpose of this study is to investigate whether work as an ambulance professional generates prolonged physiological arousal that can be measured by heart rate in different situations.Methods: Twenty participants carried a pulse-meter in the form of a wristwatch, which continuously measured and stored their heart rate 24 hours per day for a period of seven days. All ambulance alarms that occurred during the test period were recorded in journals, and the participants completed diaries and a questionnaire describing their experiences. The alarms were divided into different phases. Correlations between heart rate in the different phases were computed.Results: Analysis of study data indicated a significant rise of heart rate unrelated to physical effort during an emergency alarm and response. This increased heart rate was noticed throughout the mission and it was not related to the length of experience the staff had in the ambulance profession. In addition, a non-significant trend suggested that alarms involving acutely ill children lead to an even higher increase in heart rate. In addition, this research showed that constant tension existed during sleep, while available for an emergency, indicated by a noticeable increase in heart rate during sleep at work compared to sleeping at home.Conclusions: A rise in heart rate was experienced during all acute emergency missions, regardless of a subject's experience, education, and gender. Missions by themselves generated a rate increase that did not seem to correlate with physical effort required during an emergency response. This study shows that working on an ambulance that responds to medical emergencies is associated with a prolonged physiological arousal.


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