Effects of Post-Hypnotic Suggestions on Muscular Endurance

1975 ◽  
Vol 40 (1) ◽  
pp. 131-139 ◽  
Author(s):  
Ira Albert ◽  
Melvin H. Williams
Keyword(s):  
Heart Rate ◽  
Perceived Exertion ◽  
Endurance Capacity ◽  
Ratings Of Perceived Exertion ◽  
Endurance Time ◽  
Heart Rate Data ◽  
Control Subjects ◽  
Experimental Subjects ◽  
And Control ◽  
Hypnotic Suggestions

This study examined the effects of post-hypnotic suggestions upon maximal endurance capacity, Borg ratings of perceived exertion, and heart rate. Experimental subjects were administered post-hypnotic suggestions to improve or decrease performance, and control subjects were given similar instructions during the awake state. Endurance time could be decreased significantly when the fatigue suggestion was given to experimental subjects, but performance could not be enhanced with the facilitating suggestion. Control subjects showed no significant changes across conditions. The Borg ratings indicated that experimental subjects experienced subjective changes as suggested by the hypnotist. In addition, analysis failed to find any significant differences for the heart-rate data.

scholarly journals Acute Affective Responses and Frontal Electroencephalographic Asymmetry to Prescribed and Self-selected Exercise

2016 ◽  
Vol 12 (1) ◽  
pp. 108-119 ◽  
Author(s):  
Eduardo Lattari ◽  
Eduardo Portugal ◽  
Renato Sobral Monteiro Junior ◽  
Bruno Ribeiro Ramalho Oliveira ◽  
Tony Meireles Santos ◽  
...  
Keyword(s):  
Heart Rate ◽  
Perceived Exertion ◽  
Exercise Intervention ◽  
Randomized Study ◽  
Affective Responses ◽  
Ratings Of Perceived Exertion ◽  
Alpha Asymmetry ◽  
Feeling Scale ◽  
Frontal Alpha Asymmetry ◽  
And Control

Objective: Our goal was to compare affective responses and frontal electroencephalographic alpha asymmetry induced by prescribed exercise (PE) and self-selected exercise (SS). Method: Twenty active participants underwent a submaximal exercise test to estimate maximal oxygen consumption (VO2max). Participants enrolled a cross-over randomized study where each participant completed three conditions: PE (50%PVO2max), SS and Control. The electroencephalography was performed before and after exercise. The feeling scale, felt arousal scale and heart rate were recorded before, during and after each condition. The ratings of perceived exertion were recorded during and after each condition. Results: The heart rate and ratings of perceived exertion showed higher values in the PE and SS conditions compared to controls, with no differences between the PE and SS conditions. For the feeling scale, the SS presented higher values compared to the PE and Control conditions. The felt arousal scale presented higher values in the PE and SS conditions compared to control. There was no interaction between condition and moment, or main effect for condition and moment for frontal alpha asymmetry (InF4-InF3). Conclusion: The SS provided better affective responses compared to PE, thus can consider self-selected intensity as an appropriate option. In general, no frontal alpha asymmetry was seen due to an exercise intervention.

scholarly journals The Impact of Cell Phone Functions on the Intensity and Liking of Bike Exercise

2021 ◽  
Vol 5 (1) ◽  
pp. 1-5
Author(s):  
Michael J. Rebold ◽  
◽  
Mallory S. Kobak ◽  
Kaitlyn Morse ◽  
Lauren Caldwell ◽  
...  
Keyword(s):  
Heart Rate ◽  
Exercise Intensity ◽  
Cell Phone ◽  
Perceived Exertion ◽  
Ratings Of Perceived Exertion ◽  
Cell Phone Use ◽  
College Age ◽  
And Control ◽  
The Impact

This study assessed the effect of cell phone use (e.g., texting, talking, and listening to music) during 30-minute bouts of bike exercise and its affects on intensity (e.g., heart rate and ratings of perceived exertion) and liking (e.g., enjoyment). Thirty college-age students participated in four, separate, 30-minute exercise conditions (texting, talking, music, and control) on a bike in a randomized order. Heart rate was significantly (t  4.54, p  0.004) higher when comparing the music (147.58  4.19 beatsmin-1 ) to the texting (117.79  3.42 beatsmin-1 ) and talking (122.89  3.89 beatsmin-1 ) conditions. Ratings of perceived exertion was significantly (t = 2.1, p = 0.05) higher when comparing the texting (11.4  0.45) to the control (10.06  0.52) condition. Liking was significantly (t = 3.85, p = 0.01) higher when comparing the talking (7.64  0.63) to the control (6.2  0.71) condition. Liking was also significantly (t = 3.09, p = 0.01) higher when comparing the music (8.27  0.38) to the control condition. In conclusion, using your cell phone for texting and talking instead of listening to music can interfere with bike exercise, resulting in reduced exercise intensity and enjoyment, and perceiving exercise to be more difficult than what it really is.

Psychophysical and physiological comparison of squat and semi-squat lifting by young males

1999 ◽  
Vol 2 (1) ◽  
pp. 17-26
Author(s):  
Leon Straker ◽  
Carol Cain
Keyword(s):  
Heart Rate ◽  
Perceived Exertion ◽  
Ratings Of Perceived Exertion ◽  
Lower Heart Rate ◽  
Young Males ◽  
Squat Lifting

A comparison between semi-squat and squat techniques was made for floor to knuckle height lifting using maximum acceptable weight (MAW), ratings of perceived exertion (RPE) and heart rate. Semi-squat lifting resulted in greater MAW with lower RPE and lower heart rate compared to squat lifting. Discomfort was most commonly reported in knees/quadriceps with squat lifting. Twelve of the 13 subjects preferred the semi-squat technique. The results provide evidence that the semi-squat technique may have benefits over the squat technique for lifting a medium sized box from floor to knuckle height.

Oxygen Uptake, Heart Rate, and Ratings of Perceived Exertion at the PWC&OV0312;o2

2009 ◽  
Vol 23 (4) ◽  
pp. 1292-1299 ◽  
Author(s):  
Michelle Mielke ◽  
Terry J Housh ◽  
C Russell Hendrix ◽  
Clayton L Camic ◽  
Jorge M Zuniga ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Perceived Exertion ◽  
Ratings Of Perceived Exertion

A Pilot Study Comparing Physiological Responses of Phase III Cardiac Patients to Recumbent and Upright Exercise Using the RPE Scale

2005 ◽  
Vol 100 (2) ◽  
pp. 357-361 ◽  
Author(s):  
Meir Magal ◽  
Robert F. Zoeller
Keyword(s):  
Heart Rate ◽  
Pilot Study ◽  
Cardiac Rehabilitation ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Cardiac Patients ◽  
Phase Iii ◽  
Ratings Of Perceived Exertion ◽  
Physiological Differences ◽  
Stepping Exercise

Ratings of perceived exertion (RPE) are used for exercise programming of cardiac rehabilitation patients, whenever it is difficult to use heart rate to set intensity due to medication or other factors. This investigation examined the physiological responses to two stepping exercise modes (upright and recumbent) at the same RPE. Analysis indicated significant physiological differences between the modes of exercise which may be mediated by postural differences. Specifically, the physiological responses to the recumbent exercise, but not the upright exercise, had the expected relationship with RPE, with recumbent stepping requiring less physiological effort than the upright stepping at the same RPE. As such, we cannot recommend with confidence that the prescription for upright exercise be made based on data from recumbent exercise or vice-versa.

scholarly journals Recovery behavior after matches for returning to training in volleyball athletes

2021 ◽  
Vol 38 (5) ◽  
pp. 343-349
Author(s):  
Ananda S. Cardoso ◽  
Guilherme P. Berriel ◽  
Pedro Schons ◽  
Rochelle R. Costa ◽  
Luiz Fernando M. Kruel
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Negative Correlation ◽  
Perceived Exertion ◽  
Recovery Period ◽  
Ratings Of Perceived Exertion ◽  
Significance Level ◽  
Recovery Behavior ◽  
Vertical Jumps ◽  
And Training

The aim of this research was to evaluate the behavior of vertical jumps performance in professional volleyball athletes during matches and training and their relationships with fatigue and recovery through heart rate variability (HRV), ratings of perceived exertion (RPE) and perceived recovery status (PRS). Nine male professional volleyball athletes participated in the study, with mean age: 25.66 ± 5.7 years, mean body mass: 97.81 ± 8.65 Kg and mean height: 200.94 ± 5.19 cm, with experience in national and international competitions. HRV and PRS were evaluated in the morning of matches and in the presentation for the first day of training after matches. RPE was collected immediately after matches and at the end of training days. Jumps performance was monitored during the matches and during the first days of training. The data was grouped by matches and training sessions. Significance level adopted was α ≤ 0.05. There were no alterations in HRV and PRS evaluated after matches and before training sessions, as well as in RPE after training. Jumps height was greater during the matches (p< 0.013) and there were no differences in the number of jumps. There was a positive correlation between the number of jumps during matches and PRS before matches (r= 0.336, p= 0.015) and a negative correlation between the number of jumps during training and pre-training PRS (r= -0.318, p= 0.002). We conclude that the recovery period proposed by the team proved to be sufficient for the athletes to maintain the same condition for returning to training. This information can assist physical trainers to prescribe training loads for the return to training.

scholarly journals Strength Decrease, Perceived Physical Exertion and Endurance Time for Backpacking Tasks

2019 ◽  
Vol 16 (7) ◽  
pp. 1296 ◽  
Author(s):  
Kai Way Li ◽  
Jenn Chun Chu ◽  
Ching Chung Chen
Keyword(s):  
Heart Rate ◽  
Material Handling ◽  
Perceived Exertion ◽  
Walking Speed ◽  
Physical Exertion ◽  
Rating Of Perceived Exertion ◽  
Endurance Time ◽  
Manual Material Handling ◽  
Human Participants ◽  
Do So

Manual material handling (MMH) tasks create a burden for workers which could result in musculoskeletal injuries. Assessments of the decrease of muscular strength and the maximum endurance time (MET) for MMH tasks are essential in studying the ergonomic risk of MMH tasks. A backpacking experiment was conducted for measuring the MET for MMH tasks. Human participants carried a load on their back and walked on a treadmill under various load, walking speed, and ramp angle conditions until they coud no longer do so. It was found that the participants were able to walk for approximately 15 min to two hours before they needed to have a pause. Their back and leg strengths declined moderately due to performing the tasks. These tasks resulted in an increase in heart rate and elevated perceived physical exertion. The rating of perceived exertion (RPE)/heart rate ratio in our backpacking tasks was 31% higher than that in the literature, implying the calibration of the RPE may be required for such tasks. A MET model incorporating the fMVC_back, body weight, walking speed, and ramp angle was established. This model may be used to determine the work/rest allowance for backpacking tasks under conditions similar to this study.

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