scholarly journals THE RATE OF CARDIAC RHYTHM RECOVERY POST EXERTION IN PHYSICAL REHABILITATION OF CARDIOLOGICAL PATIENTS

2018 ◽  
Vol 17 (2) ◽  
pp. 95-100
Author(s):  
O. А. Ivanova ◽  
S. G. Kuklin

Taken the rising mortality and morbidity of the population due to cardiovascular diseases (CVD), rehabilitation of cardiovascular patients remains actual. Regular exercises are the leading components of cardiorehabilitation, that is evidently beneficial. Taken this, the question raises on the adequacy and efficacy of training regimens. Utilization of the parameter representing the velocity of heart rate decline by every minute of recovery phase after the exertion, is quite informative. The borderline set for heart rate, with increasing cardiovascular risk if below. Dynamics of such parameter during the programs of physical rehabilitation might be a marker of the events efficacy. Recently, there is a deficiency of information on the normal parameters of heart rate recovery rate in CVD patients. Hence a question raises, on the unification of approaches in evaluation of recovery period and data collection on the influence of long term exercises on CVD prognosis.

2022 ◽  
Vol 28 (1) ◽  
pp. 31-33
Author(s):  
Xiumei Zhang

ABSTRACT Introduction: Heart rate and blood pressure are important physiological indicators that reflect cardiovascular function, and they are widely used because they are convenient and practical to measure. Objective: To study the characteristics of cardiovascular changes in athletes under different training conditions. Methods: Thirty-four male students majoring in physical education in universities (group A) and 22 male non-sports majors (group B) with no formal training history were randomly selected. Heart rate before and after exercise and heart rate recovery rate at different stages of the recovery period were compared. Results: As regards heart rate changes in the recovery phase after loading, both groups showed a continuous decline, although the drop in heart rate of group A was slightly lower than that of group B (153.03± 15.88 beats/min, dropped to 110.69± 15.78 beats/minute, 171.00± 14.67 beats/minute dropped to 122. 82± 13.77 beats/min, respectively). However, the heart rate recovery rate of group A (59.40%) was significantly higher than that of group B (49.42%) (P<0.05). Conclusions: Physical exercise plays a significant role in promoting physical fitness and its effect on improving cardiovascular function is especially evident. Level of evidence II; Therapeutic studies - investigation of treatment results.


Author(s):  
Jeremy A. Bigalke ◽  
Ian M. Greenlund ◽  
Jennifer R. Nicevski ◽  
Carl A. Smoot ◽  
Benjamin Oosterhoff ◽  
...  

Chronic insufficient sleep is a common occurrence around the world, and results in numerous physiological detriments and consequences, including cardiovascular complications. The purpose of the present study was to assess the relationship between habitual total sleep time (TST) measured objectively via at-home actigraphy and heart rate (HR) reactivity to nocturnal cortical arousals. We hypothesized that short habitual TST would be associated with exaggerated cardiac reactivity to nocturnal cortical arousals. Participants included in 35 healthy individuals (20 male, 15 female, age: 24 ± 1, BMI: 27 ± 1 kg/m2), and were split using a median analysis into short (SS; n = 17) and normal sleeping (NS; n = 18) adults based on a minimum of 7 days of at-home actigraphy testing. All participants underwent a full overnight laboratory polysomnography (PSG) testing session, including continuous HR (electrocardiogram, ECG) sampling. HR reactivities to all spontaneous cortical arousals were assessed for 20 cardiac cycles following the onset of the arousal in all participants. Baseline HR was not significantly different between groups (P > .05). Spontaneous nocturnal arousal elicited an augmented HR response in the SS group, specifically during the recovery period [F (4.192, 134.134) = 3.413, p = .01]. There were no significant differences in HR reactivity between sexes [F (4.006, 128.189) = .429, p > .05]. These findings offer evidence of nocturnal cardiovascular dysregulation in habitual short sleepers, independent from any diagnosed sleep disorders.


2011 ◽  
Vol 1 (2) ◽  
pp. 59-63
Author(s):  
Tabish Hussain ◽  
Li Yu Shu ◽  
A Seid Adji ◽  
Tumenjavkhlan Sosorburam

Objective: Cardiac failure is a global burden among cardiovascular diseases, and major cause of morbidity and mortality especially among elderly age group. Angiotensin Converting Enzyme(ACE) inhibitors, remained the choice of treatment as they inhibit the renin angiotensin aldosterone system along with reduction in levels of pro-inflammatory cytokines, both of them are key factors in progression and complications of heart failure. The aim of this study was to rule out the effect of aging and efficacy of ACE inhibitor, Captopril, among Chinese cardiovascular patients with acute myocardial infarction (MI) during the hospitalization phase of therapy. Material & Methods: Randomized control trial at hospital of Tongji Medical College Wuhan, China over a period of more than 1 year from April 2009 till July 2010 recruiting patients in two stages. A total of 260 patients with mean age 65±8 years were recruited. All suffered from first time myocardial infarction and arrived in Cardiac emergency within 72 hours of the event. The participants were then randomly divided in study and control groups which were then further classified in sub-groups depending upon their age. Study group received ACE inhibitor Captopril in addition to standardized therapy while control group just received the conventional therapy for the event. Statistical analyses were done to formulate the corre-lation between multi-variables. Results: Participants were divided in Study group (N=150) (A and C, Young and Old) and the control group (N=110) (B and D, Young and Old). Survival rate was better among elderly on captopril in comparison to younger ones during the hospitalization. The Systolic blood pressure among study group was significantly lower than control group (132.9±16.3mmHg/84.7 ±9.1mmHg vs. 147.1±17.4mmHg/85.1 ±10.9mmHg, P<0.05).Patient’s survival was statistically significant with respect to age (P<0.001). Conclusion: Treatment with Captopril is definitely associated with improved short as well as long term cardiac prognosis and markedly. Captopril therapy is associated with improved long term prognosis and reduced cardiac mortality during the hospitalization phase of the therapy and recovery period. But the most significant finding is that the increased survival after taking Captopril was higher in elderly patients than in younger patients. ACE inhibitors like Captopril in proper dosage play a real vital beneficial role among elderly patients as compared to the younger ones, but still there is need to recruit a large cohort in different ethnic groups with different genetic makeup. Key Words: Myocardial infarction (MI); Ace-inhibitor; Aging DOI: 10.3126/ajms.v1i2.2947Asian Journal of Medical Sciences 1 (2010) 59-63


2014 ◽  
Vol 113 (7) ◽  
pp. S16
Author(s):  
E. Pancar Yüksel ◽  
S. Yüksel ◽  
M. Yenerçağ ◽  
K. Soylu ◽  
F. Aydın ◽  
...  

2015 ◽  
Vol 27 (06) ◽  
pp. 1550055
Author(s):  
Ren-Guey Lee ◽  
Chih-Yang Chen ◽  
Chun-Chieh Hsiao ◽  
Robert Lin

According to statistics in Taiwan, the proportion of students engaged in regular exercise has declined drastically with the increase in education level. This study thus aims to provide a platform for monitoring of group cardiorespiratory fitness to allow users such as teachers or coaches to easily monitor a group’s exercise condition, intensity and duration to increase exercise efficiency, promote exercise motivation and reduce exercise risk. Based on group measurement concept and wearable chest strap textiles integrated with heart rate monitoring devices, teachers or coaches can immediately acquire and display all heart rate information on a notebook computer together with synchronous field projection display. The acquired heart rate data can also be automatically recorded and analyzed to assist in assessing the physical fitness. Our proposed platform aims to monitor the cardiorespiratory fitness in group mainly for college students and young office worker. To validate the stability of our platform in the long term, we recruited the college students in a physical fitness class, 35 in total, as the subjects for long term observation. In the experiments the subjects are divided into “varsity group” and “sedentary group” according to whether they are with or without regular exercise habits. Subjects wearing chest straps were instructed to take the 3-minute Step Test and the 5-minute constant intensity exercise test. The results show that the “varsity group” has a lower resting heart rate ([Formula: see text][Formula: see text]bpm vs. [Formula: see text][Formula: see text]bpm), a lower exercise heart rate ([Formula: see text][Formula: see text]bpm vs. [Formula: see text][Formula: see text]bpm) and a lower mean heart rate ([Formula: see text][Formula: see text]bpm vs. [Formula: see text][Formula: see text]bpm). The “Varsity group” also has a higher heart rate recovery percentage at the first minute ([Formula: see text] vs. [Formula: see text]) and the second minute ([Formula: see text] vs. [Formula: see text]). Moreover, all these indexes have a high correlation with the fitness index in the 3-minute Step Test, among which the percentage of heart rate recovery in the first minute shows the highest positive correlation ([Formula: see text], [Formula: see text]). Our wearable heart rate monitoring system can thus be deemed as effective to provide a platform for measurement of group heart rates and for assessment of cardiorespiratory fitness.


2019 ◽  
Vol 19 (1) ◽  
pp. 109-115
Author(s):  
Sadık Volkan Emren ◽  
Rahman Bilal Gediz ◽  
Oktay Şenöz ◽  
Uğur Karagöz ◽  
Ersin Çağrı Şimşek ◽  
...  

An impaired heart rate recovery (HRR) has been associated with increased risk of cardiovascular events, cardiovascular, and all‐cause mortality. However, the diagnostic ability of HRR for the presence and severity of coronary artery disease (CAD) has not been clearly elucidated. Our aim was to investigate the relationship between HRR and the SYNTAX (SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery) score in patients with stable CAD (SCAD). A total of 406 patients with an abnormal treadmill exercise test and ≥50% coronary stenosis on coronary angiography were included. The HRR was calculated by subtracting the HR in the first minute of the recovery period from the maximum HR during exercise. The SYNTAX score ≥23 was accepted as high. Correlation of HRR with SYNTAX score and independent predictors of high SYNTAX score were determined. A high SYNTAX score was present in 172 (42%) patients. Mean HRR was lower in patients with a high SYNTAX score (9.8 ± 4.5 vs. 21.3 ± 9, p < 0.001). The SYNTAX score was negatively correlated with HRR (r: -0.580, p < 0.001). In multivariate logistic regression analysis, peripheral arterial disease (OR: 13.3; 95% CI: 3.120–34.520; p < 0.001), decreased HRR (OR: 0.780; 95% CI: 0.674–0.902; p = 0.001), peak systolic blood pressure (OR: 1.054; 95% CI: 1.023–1.087; p = 0.001), and peak HR (OR: 0.950; 95% CI: 0.923–0.977; p < 0.001) were found to be independent predictors of a high SYNTAX score. Our results showed that HRR is significantly correlated with the SYNTAX score, and a decreased HRR is an independent predictor of a high SYNTAX score in patients with SCAD.


2017 ◽  
Vol 23 (6) ◽  
pp. 578-582
Author(s):  
Emrah Aytac ◽  
Murat Gonen ◽  
Orhan Dogdu ◽  
Mehmet Balin

Objective Although carotid artery stenting (CAS) is an effective treatment for severe carotid stenosis, it has been associated with alterations in autonomic functions long term after the procedure. Patients with CAS have been reported to have autonomic nervous system (ANS) dysfunction. This study aimed to evaluate heart rate recovery (HRR) indices and exercise test parameters after CAS. Methods Patients (10 male, 11 female) suitable for CAS, without a history of hypertension, diabetes mellitus, severe coronary artery or valvular heart disease, were enrolled in our study. Basal electrocardiography, echocardiography, and treadmill exercise testing were performed in all patients pre- and post-procedure. The HRR index was defined as the reduction in the heart rate from the rate at peak exercise to the rate first minute (HRR1), second minute (HRR2), third minute (HRR3) and fifth minute (HRR5) after the cessation of exercise stress testing. Results The exercise time, maximal heart rate, maximal blood pressure and maximal metabolic equivalents values were significantly decreased after the procedure. The first- and second-minute HRR indices of patients before procedure were significantly lower than after procedure (23.5 ± 6.6 vs 25.8 ± 8.3; p < 0.001 and 41.8 ± 12.3 vs 50.2 ± 16.3; p < 0.001, respectively). Similarly, HRR indices after the third and fifth minutes of the recovery period were significantly lower in patients before procedure, when compared with those indices after procedure (52.9 ± 13.1 vs 60.7 ± 14.4; p < 0.001 and 62.4 ± 12.8 vs 71.9 ± 14.1; p < 0.001). Conclusion We have demonstrated that HRR indices increased in the first, second, third and fifth minutes of the recovery period after maximal exercise testing in patients after the CAS procedure, which may be a reflection of parasympathetic dominance after CAS.


Author(s):  
Wafa Douzi ◽  
Benoit Dugué ◽  
Dimitri Theurot ◽  
Ludwig Vinches ◽  
Stéphane Hallé ◽  
...  

AbstractThe aim of this study was to evaluate the impact of using a cooling vest during physical exercise (per-cooling) in humid and temperate conditions (≈22°C, ≈80% relative humidity) on perceptual and physiological responses (tissue oxygenation and heart rate). 20 physically active men performed twice a 30-min cycling exercise at 70% of their theoretical maximum heart rate while using an activated (experimental condition) and a deactivated (control condition) cooling system in a randomized crossover study. Heart rate and tissue (cerebral and muscular) oxygenation were continuously measured during exercise and recovery, and skin temperature was measured every 10 min. Perception of temperature, humidity and comfort were assessed at the end of the recovery period. Results showed a decrease in trunk skin temperature (p<0.05), a faster heart rate recovery and an increase in the concentration of total hemoglobin at the brain level (p<0.05) compared with control condition. Moreover, an improved subjective rating of thermal sensations, wetness and comfort compared to control values (p<0.05) was noted. In conclusion, wearing a cooling vest during submaximal exercise improves perceptual and physiological responses in humid temperate conditions, which may be due to a better blood perfusion at the brain level and a better parasympathetic reactivation.


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