scholarly journals Heart rate responses of the hooded rat to low intensity white noise onset and offset

1974 ◽  
Vol 2 (3) ◽  
pp. 310-312 ◽  
Author(s):  
I. R. Inglis
Keyword(s):  
Heart Rate ◽  
White Noise ◽  
Low Intensity ◽  
Noise Onset

Controlled 5-mo aerobic training improves heart rate but not heart rate variability or baroreflex sensitivity

2000 ◽  
Vol 89 (5) ◽  
pp. 1825-1829 ◽  
Author(s):  
Antti Loimaala ◽  
Heikki Huikuri ◽  
Pekka Oja ◽  
Matti Pasanen ◽  
Ilkka Vuori
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
High Intensity ◽  
Baroreflex Sensitivity ◽  
Aerobic Training ◽  
Control Group ◽  
Resting Heart Rate ◽  
Endurance Time ◽  
Low Intensity

Endurance-trained athletes have increased heart rate variability (HRV), but it is not known whether exercise training improves the HRV and baroreflex sensitivity (BRS) in sedentary persons. We compared the effects of low- and high-intensity endurance training on resting heart rate, HRV, and BRS. The maximal oxygen uptake and endurance time increased significantly in the high-intensity group compared with the control group. Heart rate did not change significantly in the low-intensity group but decreased significantly in the high-intensity group (−6 beats/min, 95% confidence interval; −10 to −1 beats/min, exercise vs. control). No significant changes occurred in either the time or frequency domain measures of HRV or BRS in either of the exercise groups. Exercise training was not able to modify the cardiac vagal outflow in sedentary, middle-aged persons.

scholarly journals Effect of Chair aerobics as low intensity exercise training on heart rate, blood pressure and six minute walk distance in post coronary artery bypass graft surgery patients through phase I cardiac rehabilitation

2016 ◽  
Vol 13 (1) ◽  
pp. 19-23
Author(s):  
Shaili Thapa ◽  
Renu B. Pattanshetty
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Exercise Training ◽  
Cardiac Rehabilitation ◽  
Phase I ◽  
Walk Distance ◽  
Low Intensity ◽  
Low Intensity Exercise ◽  
Minute Walk Distance ◽  
Minute Walk

Background and Aims: Cardiac Rehabilitation after Coronary arteries bypass graft (CABG) surgery is known to have several favorable effects. Aerobics exercise in the form of chair aerobics shown to have beneficial effects with little evidence. The purpose of the present study was to demonstrate the effect of chair aerobics as low intensity exercise training in heart rate, blood pressure and six minute walk distance in post CABG patients during phase I cardiac rehabilitation.   Methods: It was a single centre, prospective study carried out in Indian tertiary care set-up. Fifty patients post CABG patients were included. Chair aerobics as a low intensity exercise training was given.  Pre and post-exercise outcome measurements in the form of heart rate, blood pressure and six-minute walk distance test were recorded. Results: The study showed statistically significant difference in systolic blood pressure (p= 0.018), heart rate (p≤0.001) and increase in six minute walk distance (p≤0.001). Conclusion: Chair aerobics as low intensity exercise training demonstrated improvement in heart  rate, systolic blood pressure and six minute walk distance test in subjects with CABG through phase I  cardiac rehabilitation.  Nepalese Heart Journal 2016; 13(1) 19-23

scholarly journals Comparative Analysis of Load Profile between Small-Sided Games and Official Matches in Youth Soccer Players

Sports ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 173 ◽  
Author(s):  
Carlos Gómez-Carmona ◽  
José Gamonales ◽  
José Pino-Ortega ◽  
Sergio Ibáñez
Keyword(s):  
Heart Rate ◽  
Comparative Analysis ◽  
National Level ◽  
Soccer Players ◽  
Specific Training ◽  
Maximum Heart Rate ◽  
Internal Load ◽  
Youth Soccer ◽  
Low Intensity ◽  
Competition Period

The purposes of the present study are: (a) to characterize the external (eTL) and internal load (iTL) of official matches and small-sided games (SSGs) in relation to their objective, (b) to compare demands between SSG, and (c) to analyze the SSG requirements in relation to official matches during a one-month competition period. Twenty under-18 national-level soccer players were recorded using WIMUTM inertial devices (RealTrack Systems, Almeria, Spain) during four official matches and 12 training sessions where four SSGs with different objectives were performed: (SSG1) keeping the ball; (SSG2) keeping the ball and progressing; (SSG3) keeping the ball, progressing and ending in mini-goals; and (SSG4) keeping the ball, progressing and ending in an official goal with a goalkeeper. Statistical analysis included Kruskall-Wallis’ H and Mann-Whitney’s U with Cohen’s d effect size. The SSGs presented walking and jogging intensity movements (0.7–7 to 7–14 km/h), with a 5-to-8 %HIA (high intensity activity, >16 km/h), where low intensity accelerations, decelerations and impacts were predominant (1–2.5 m/s2; 5–7 G), and %HRMAX (maximum heart rate percentage) was between 70–90%. Only SSG4 presented similar demands to competition, finding differences between SSGs (p < 0.05; d = 1.40 − 0.36). In conclusion, the objective of the SSGs directly influenced the demands on the players in training sessions. For this reason, it is important to monitor demands for designing specific training sessions.

scholarly journals Correction: Are wearable heart rate measurements accurate to estimate aerobic energy cost during low-intensity resistance exercise?

PLoS ONE ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. e0230323
Author(s):  
Victor M. Reis ◽  
Jeferson M. Vianna ◽  
Tiago M. Barbosa ◽  
Nuno Garrido ◽  
Jose Vilaça Alves ◽  
...  
Keyword(s):  
Heart Rate ◽  
Resistance Exercise ◽  
Energy Cost ◽  
Low Intensity

Heart-Rate Variability and Training-Intensity Distribution in Elite Rowers

2014 ◽  
Vol 9 (6) ◽  
pp. 1026-1032 ◽  
Author(s):  
Daniel J. Plews ◽  
Paul B. Laursen ◽  
Andrew E. Kilding ◽  
Martin Buchheit
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Intensity Distribution ◽  
Lactate Threshold ◽  
Training Intensity ◽  
Training Time ◽  
Low Intensity ◽  
Elite Rowers ◽  
And Training ◽  
Intensity Training

Purpose:Elite endurance athletes may train in a polarized fashion, such that their training-intensity distribution preserves autonomic balance. However, field data supporting this are limited.Methods:The authors examined the relationship between heart-rate variability and training-intensity distribution in 9 elite rowers during the 26-wk build-up to the 2012 Olympic Games (2 won gold and 2 won bronze medals). Weekly averaged log-transformed square root of the mean sum of the squared differences between R-R intervals (Ln rMSSD) was examined, with respect to changes in total training time (TTT) and training time below the first lactate threshold (>LT1), above the second lactate threshold (LT2), and between LT1 and LT2 (LT1–LT2).Results:After substantial increases in training time in a particular training zone or load, standardized changes in Ln rMSSD were +0.13 (unclear) for TTT, +0.20 (51% chance increase) for time >LT1, –0.02 (trivial) for time LT1–LT2, and –0.20 (53% chance decrease) for time >LT2. Correlations (±90% confidence limits) for Ln rMSSD were small vs TTT (r = .37 ± .80), moderate vs time >LT1 (r = .43 ± .10), unclear vs LT1–LT2 (r = .01 ± .17), and small vs >LT2 (r = –.22 ± .50).Conclusion:These data provide supportive rationale for the polarized model of training, showing that training phases with increased time spent at high intensity suppress parasympathetic activity, while low-intensity training preserves and increases it. As such, periodized low-intensity training may be beneficial for optimal training programming.

Effects of Synchronous and Asynchronous Music on Heart rate and Perceived Exertion during Aerobic Exercise: Pilot study

2020 ◽  
Vol 12 (2) ◽  
pp. 92
Author(s):  
Pongsakorn Chaisurin ◽  
Jakkrit Klapajone ◽  
Pongson Yaicharoen
Keyword(s):  
Heart Rate ◽  
White Noise ◽  
Perceived Exertion ◽  
Rating Scale ◽  
Positive Impact ◽  
Rating Of Perceived Exertion ◽  
Prior History ◽  
Target Heart Rate ◽  
Satisfactory Level ◽  
Significant Difference

Objectives: Our objective was to investigate physiological effects of three types of sounds (synchronous, non-synchronous and white noise) on heart rate, rating of perceived exertion (RPE) and satisfactory level during aerobic exercise.Study design: Pilot cross-over study, single-blindSetting: SuanDok fitness center, Faculty of Medicine, Chiang Mai University.Subjects: Fifteen healthy individuals, aged 18-40 years (mean ± SD = 30.2 ± 4.0) with no prior history of pain, musculoskeletal disorders, cardiopulmonary diseases, neurological diseases and hearing impairment.Methods: Subjects who were asked to exercise to exhaustion (with target heart rate in an aerobic zone) on elliptical machines were randomly assigned to listen to 1) a music with beats matching the exercise cadence; synchronous music or 2) a music with variable beats not matching the cadence; asynchronous music or 3) a control sound using white noise in each of 3 exercise sessions. Heart rate and Borg’s Ratings of Perceived Exertion (RPE) were measured at 10 and 20 minutes after starting the exercise. Satisfactory level was also assessed.Results: All fifteen participants with an average age of 30.2 ± 4.0 years completed the exercise protocol. The synchronous music session gave a significant reduction in heart rate at 10 and 20 minutes when compared with asynchronous and white noise sessions. There was no significant difference of heart rate between asynchronous music and white noise sessions at 10 and 20 minutes. Regarding Borg’s RPE, the synchronous session showed significantly lower RPE at 10 and 20 minutes when compared with asynchronous music and white noise sessions. There was no significant difference between RPE in asynchronous music and white noise session. Overall satisfaction using numeric rating scale of 0-10 revealed average satisfactory levels for synchronous music, asynchronous music and white noise of 8.27 ± 1.16, 5.2 ± 2.65 and 2.73 ± 1.62 respectively. Conclusion: Synchronous music had a positive impact on an exercise as it could reduce heart rate and perceived exertion during the exercise. A consistent pace could be auditorily stimulated by coupling exercise cadence on the elliptical machine to the synchronous music tempo, leading to better auditory-motor synchronization.Keywords: synchronous music, exercise, RPE, tempo, elliptical machine 

Psychophysiological Changes following Auditory Subliminal Suggestions for Activation and Deactivation

1983 ◽  
Vol 56 (3) ◽  
pp. 759-766 ◽  
Author(s):  
François Borgeat ◽  
Jean Goulet
Keyword(s):  
Heart Rate ◽  
Multivariate Analysis ◽  
White Noise ◽  
Skin Temperature ◽  
Analysis Of Variance ◽  
Skin Conductance ◽  
Physiological Measures ◽  
Psychophysiological Responses ◽  
Skin Conductance Levels ◽  
Control Situation

This study was to measure eventual psychophysiological changes resulting from auditory subliminal activation or deactivation suggestions. 18 subjects were alternately exposed to a control situation and to 25-dB activating and deactivating suggestions masked by a 40-dB white noise. Physiological measures (EMG, heart rate, skin-conductance levels and responses, and skin temperature) were recorded while subjects listened passively to the suggestions, during a stressing task that followed and after that task. Multivariate analysis of variance showed a significant effect of the activation subliminal suggestions during and following the stressing task. This result is discussed as indicating effects of consciously unrecognized perceptions on psychophysiological responses.

Effects of Bout Duration on Players’ Internal and External Loads During Small-Sided Games in Young Soccer Players

2017 ◽  
Vol 12 (10) ◽  
pp. 1370-1377 ◽  
Author(s):  
Yusuf Köklü ◽  
Utku Alemdaroğlu ◽  
Hamit Cihan ◽  
Del P. Wong
Keyword(s):  
Heart Rate ◽  
High Intensity ◽  
Perceived Exertion ◽  
Young Male ◽  
Rating Of Perceived Exertion ◽  
Soccer Players ◽  
Moderate Intensity ◽  
Low Intensity ◽  
Playing Time ◽  
External Loads

Purpose: To investigate the effects of different bout durations on internal and external loads of young soccer players during different small-sided games (SSGs). Methods: Fifteen young male soccer players (average age 17 ± 1 y) participated in 2 vs 2, 3 vs 3, and 4 vs 4 SSGs. All games lasted 12 min playing time in total, but each SSG format further consisted of 4 bout durations: continuous (CON: 1 bout × 12 min) or interval with short (SBD: 6 bouts  × 2 min), medium (MBD: 3 bouts × 4 min), or long (LBD: 2 bouts × 6 min) bout durations. During the SSGs, heart-rate (HR) responses and distance covered in different speed zones (walking and low-intensity, moderate-intensity, and high-intensity running) were measured. Rating of perceived exertion (RPE) and blood lactate (La−) were determined at the end of each SSG. Results: The SBD format elicited significantly lower %HRmax responses compared to LBD and CON in all formats (P < .05). The SBD format also showed significantly shorter distances covered in walking and greater distances covered in moderate-intensity running, as well as significantly greater total distance covered compared to LBD and CON in all formats (P < .05). In addition, LBD produced significantly lower La− and RPE responses than SBD and CON in all formats (P < .05). Conclusions: These results suggest that coaches and sport scientists who want to achieve higher internal loads could use SBD and CON timing protocols, while those who want to achieve higher external loads might prefer to use SBD and MBD when planning all SSG formats.

scholarly journals Characteristics of Heart Rate in Low Intensity Constant Load Arm Exercise:

2011 ◽  
Vol 26 (1) ◽  
pp. 7-11
Author(s):  
Miku WAKUDA ◽  
Yuusuke NISHIDA
Keyword(s):  
Heart Rate ◽  
Constant Load ◽  
Arm Exercise ◽  
Low Intensity
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