Preliminary Study of Effects of “in vivo” Emotive Imagery on Dental Discomfort

1976 ◽  
Vol 42 (1) ◽  
pp. 105-106 ◽  
Author(s):  
John J. Horan ◽  
Frank C. Layng ◽  
Carol H. Pursell
Keyword(s):  
Heart Rate ◽  
Pilot Study ◽  
Pulse Rate ◽  
Self Report ◽  
Treatment Conditions ◽  
Order Promising ◽  
Preliminary Study ◽  
Female Subjects

To examine the effects of “in vivo” emotive imagery on dental discomfort (as measured by pulse rate and self-report) 27 female subjects undergoing tooth prophylaxis were exposed to three tape-recorded treatment conditions (relaxation imagery, neutral imagery, and a blank tape) in counterbalanced order. Promising findings of a pilot study were not confirmed on heart rate; however, on self-reported discomfort, positive differences appeared between the relaxation imagery and each of the control conditions.

scholarly journals Ergonomical Assessment on Hand Operated Chaff Cutter by Rural Women Workers

2021 ◽  
Vol 12 (5) ◽  
pp. 490-495
Author(s):  
Sathish Akki ◽  
◽  
Nirmala Bangi ◽  
Suresh Batta ◽  
Nagaraj Basani ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Energy Expenditure ◽  
Pulse Rate ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Age Group ◽  
Female Workers ◽  
Expenditure Rate ◽  
Female Subjects

A study was conducted to ease the fodder cutting operations a commercially available hand chaff cutter (Sokhiya Agricultural Industries, Jaipur, India) during 2019–20 in the Department of Farm Machinery and Power Engineering at College of Agricultural Engineering, Sangareddy, Telangana, India. The assessment was done using with 3 different age group female workers who regularly feed to the animals to assess its suitability for workers of the southern region of India. The parameters used for the Ergonomical evaluation include machine operation at different forces are heart rate, pulse rate, oxygen consumption rate, and energy expenditure rate. The average heart rate for female subjects of P1, P2 and P3 was recorded before the operation is 79, 76 and 81 beats min-1 and after the operation is 109, 108 and 113 beats min-1 for various fodders. The average pulse rate for female subjects of P1, P2, and P3 was recorded before the operation is 62, 68, and 63 beats min-1 and after the operation is 80, 80, and 82 beats min-1 for various fodders. The average oxygen consumption rate and energy expenditure rate of female subjects of P1, P2 and P3 were found to be 0.61, 0.59 and 0.66 liter min-1, and 12.68, 12.36 and 13.74 KJ min-1 respectively after operation of chaff cutter. The physiological parameters are heart rate, pulse rate, oxygen consumption rate, and energy consumption rate increased more rapidly for all age group female workers after operation of chaff cutter with 3 various fodders.

scholarly journals Penggunaan Monitor Detak Jantung dalam Intensitas 500 Meter pada Atlet Canoeing Stkip Pasundan Cimahi

2019 ◽  
Vol 5 (1) ◽  
pp. 26-31
Author(s):  
Syahid Nur Yasin
Keyword(s):  
Heart Rate ◽  
Pilot Study ◽  
Pulse Rate ◽  
Training Process ◽  
Heart Rate Monitor ◽  
Total Distance ◽  
The World ◽  
Coaching Training ◽  
Sports Coaches

The use of Heart Rate monitor technology has developed rapidly in the world of sports. However, there are still few accomplished sports coaches who use it during their coaching, although it can help the trainer to know the progress of the athlete's movements. This research is a pilot study that aims to determine the motion intensity of canoeing athletes by using a Heart Rate monitor in the PE training process. A total of 24 canoeing athletes aged 15 years and above were involved in this study. The instruments used were Polar GPS (Heart Rate monitor) RC3 and Polar GPS RC3 to measure the pulse and distance of canoeing athletes during training. During the process of coaching the training canoeing athletes obtain an average pulse rate of 138.94 ± 5.48 bpm, with a maximum pulse rate of 191.75 ± 10.36 bpm. The total distance traveled by a canoeing athlete is 0.23 ± 0.10 km. Coaching training carried out on average is in the low to moderate and medium to high categories. The use of a Heart Rate monitor in the training process is strongly recommended to be able to measure the intensity of motion.

scholarly journals Intrapulpal venous injection. Pilot study

2021 ◽  
Vol 19 (1) ◽  
pp. 7-10
Author(s):  
A. Zh. Petrikas ◽  
E. V. Chestnykh ◽  
D. V. Medvedev ◽  
I. O. Larichkin ◽  
K. V. Kulikova
Keyword(s):  
Heart Rate ◽  
Pilot Study ◽  
Pulse Rate ◽  
Pulse Oximeter ◽  
Root Canal ◽  
Sharp Increase ◽  
Pulp Chamber ◽  
Vascular Reaction ◽  
Prospective Pilot Study ◽  
Histological Specimen

Relevance. The reason for the study was our histological specimen with intrapulpal dye injection from the monograph "Anesthesia in Endodontics". Outside the pulp chamber, in the root canal, the ink is diffusely distributed throughout the vessels. There was a hypothesis about the vascular nature of intrapulpal injection.Aim. Тo prove vascular mechanism intrapulpal injection.Materials and methods. A randomized prospective pilot study was performed in 15 patients (9 men, 6 women) with 15 teeth vital pulpectomy. Traditional anesthesia conducted articaine 4% with epinephrine 1:100 000. When accessed in the pulpintroduced drop the same anesthetic. Heart rate was determined after 30 seconds for 3 minutes pulse oximeter MD 300.Results. There was expressed vascular reaction to intrapulpal introduction anesthetic with epinephrine. It has resulted in a sharp increase in pulse rate by an average of 11.3 beats /min, return to the original level after 3 minutes. Conclusions. Based on the results obtained, we assume the vascular-venous nature of intrapulpal anesthesia.

Identifying Patterns in Complex Field Data

2017 ◽  
Vol 225 (3) ◽  
pp. 268-284 ◽  
Author(s):  
Andrew J. White ◽  
Dieter Kleinböhl ◽  
Thomas Lang ◽  
Alfons O. Hamm ◽  
Alexander L. Gerlach ◽  
...  
Keyword(s):  
Heart Rate ◽  
Panic Disorder ◽  
Latent Class ◽  
Treatment Protocol ◽  
Situational Factors ◽  
Self Report ◽  
Complex Field ◽  
Cluster Assignment ◽  
Experimental Conditions ◽  
Conventional Analysis

Abstract. Ambulatory assessment methods are well suited to examine how patients with panic disorder and agoraphobia (PD/A) undertake situational exposure. But under complex field conditions of a complex treatment protocol, the variability of data can be so high that conventional analytic approaches based on group averages inadequately describe individual variability. To understand how fear responses change throughout exposure, we aimed to demonstrate the incremental value of sorting HR responses (an index of fear) prior to applying averaging procedures. As part of their panic treatment, 85 patients with PD/A completed a total of 233 bus exposure exercises. Heart rate (HR), global positioning system (GPS) location, and self-report data were collected. Patients were randomized to one of two active treatment conditions (standard exposure or fear-augmented exposure) and completed multiple exposures in four consecutive exposure sessions. We used latent class cluster analysis (CA) to cluster heart rate (HR) responses collected at the start of bus exposure exercises (5 min long, centered on bus boarding). Intra-individual patterns of assignment across exposure repetitions were examined to explore the relative influence of individual and situational factors on HR responses. The association between response types and panic disorder symptoms was determined by examining how clusters were related to self-reported anxiety, concordance between HR and self-report measures, and bodily symptom tolerance. These analyses were contrasted with a conventional analysis based on averages across experimental conditions. HR responses were sorted according to form and level criteria and yielded nine clusters, seven of which were interpretable. Cluster assignment was not stable across sessions or treatment condition. Clusters characterized by a low absolute HR level that slowly decayed corresponded with low self-reported anxiety and greater self-rated tolerance of bodily symptoms. Inconsistent individual factors influenced HR responses less than situational factors. Applying clustering can help to extend the conventional analysis of highly variable data collected in the field. We discuss the merits of this approach and reasons for the non-stereotypical pattern of cluster assignment across exposures.

The Effect of Searching Versus Surfing on Cognitive and Emotional Responses to Online News

2009 ◽  
Vol 21 (2) ◽  
pp. 49-59 ◽  
Author(s):  
Kevin Wise ◽  
Hyo Jung Kim ◽  
Jeesum Kim
Keyword(s):  
Heart Rate ◽  
Skin Conductance ◽  
Skin Conductance Level ◽  
Emotional Responses ◽  
Online News ◽  
Self Report ◽  
Mixed Design ◽  
Information Need ◽  
News Stories ◽  
Rate Acceleration

A mixed-design experiment was conducted to explore differences between searching and surfing on cognitive and emotional responses to online news. Ninety-two participants read three unpleasant news stories from a website. Half of the participants acquired their stories by searching, meaning they had a previous information need in mind. The other half of the participants acquired their stories by surfing, with no previous information need in mind. Heart rate, skin conductance, and corrugator activation were collected as measures of resource allocation, motivational activation, and unpleasantness, respectively, while participants read each story. Self-report valence and recognition accuracy were also measured. Stories acquired by searching elicited greater heart rate acceleration, skin conductance level, and corrugator activation during reading. These stories were rated as more unpleasant, and their details were recognized more accurately than similar stories that were acquired by surfing. Implications of these results for understanding how people process online media are discussed.

scholarly journals Differential effects of the blood pressure state on pulse rate variability and heart rate variability in critically ill patients

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Elisa Mejía-Mejía ◽  
James M. May ◽  
Mohamed Elgendi ◽  
Panayiotis A. Kyriacou
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Pulse Rate ◽  
Pulse Transit Time ◽  
Pulse Rate Variability ◽  
Physiological Factors ◽  
Ecg Signals ◽  
Non Invasive ◽  
Electrocardiogram Ecg

AbstractHeart rate variability (HRV) utilizes the electrocardiogram (ECG) and has been widely studied as a non-invasive indicator of cardiac autonomic activity. Pulse rate variability (PRV) utilizes photoplethysmography (PPG) and recently has been used as a surrogate for HRV. Several studies have found that PRV is not entirely valid as an estimation of HRV and that several physiological factors, including the pulse transit time (PTT) and blood pressure (BP) changes, may affect PRV differently than HRV. This study aimed to assess the relationship between PRV and HRV under different BP states: hypotension, normotension, and hypertension. Using the MIMIC III database, 5 min segments of PPG and ECG signals were used to extract PRV and HRV, respectively. Several time-domain, frequency-domain, and nonlinear indices were obtained from these signals. Bland–Altman analysis, correlation analysis, and Friedman rank sum tests were used to compare HRV and PRV in each state, and PRV and HRV indices were compared among BP states using Kruskal–Wallis tests. The findings indicated that there were differences between PRV and HRV, especially in short-term and nonlinear indices, and although PRV and HRV were altered in a similar manner when there was a change in BP, PRV seemed to be more sensitive to these changes.

scholarly journals Partial Decellularization for Segmental Tracheal Scaffold Tissue Engineering: A Preliminary Study in Rabbits

Biomolecules ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 866
Author(s):  
Luong Huu Dang ◽  
Yuan Tseng ◽  
How Tseng ◽  
Shih-Han Hung
Keyword(s):  
Mechanical Stability ◽  
Vital Staining ◽  
Potential Method ◽  
Term Survival ◽  
Long Term Survival ◽  
Cartilage Cells ◽  
Preliminary Study ◽  
Epithelial Layers

In this study, we developed a new procedure for the rapid partial decellularization of the harvested trachea. Partial decellularization was performed using a combination of detergent and sonication to completely remove the epithelial layers outside of the cartilage ring. The post-decellularized tracheal segments were assessed with vital staining, which showed that the core cartilage cells remarkably remained intact while the cells outside of the cartilage were no longer viable. The ability of the decellularized tracheal segments to evade immune rejection was evaluated through heterotopic implantation of the segments into the chest muscle of rabbits without any immunosuppressive therapy, which demonstrated no evidence of severe rejection or tissue necrosis under H&E staining, as well as the mechanical stability under stress-pressure testing. Finally, orthotopic transplantation of partially decellularized trachea with no immunosuppression treatment resulted in 2 months of survival in two rabbits and one long-term survival (2 years) in one rabbit. Through evaluations of posttransplantation histology and endoscopy, we confirmed that our partial decellularization method could be a potential method of producing low-immunogenic cartilage scaffolds with viable, functional core cartilage cells that can achieve long-term survival after in vivo transplantation.

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