Physiological responses of the Australian cattle dog to mustering exercise

2007 ◽  
Vol 4 (1) ◽  
pp. 37-41 ◽  
Author(s):  
B A Hampson ◽  
C M McGowan
Keyword(s):  
Heart Rate ◽  
Physiological Responses ◽  
Exercise Physiology ◽  
Gps Tracking ◽  
Positive Linear Relationship ◽  
Global Positioning ◽  
Working Dogs ◽  
Gps Devices ◽  
Work Done

AbstractThe aim of this study was to determine the heart rate (HR) and work variables of working cattle dogs during actual mustering exercise using a global positioning satellite (GPS) tracking unit‡ with an integrated HR monitor§. The GPS units allowed tracking of seven different Collie and Kelpie working cattle dogs over a total of ten sessions while employed in their usual role of mustering cattle in three locations in Queensland, Australia. Speed, distance and HR data were collected from the dogs during mustering in a variety of working situations. The working dogs covered distances between 13.3 and 30.2 km during mustering sessions ranging from 1 h 59 min to 4 h 24 min at working speeds of up to 43.7 km h− 1. Working temperatures ranged from 29 to 38°C. HR during working exercise ranged between 120 and 237 bpm and was above 180 bpm for 51–68% of the duration of work sessions. There was a positive linear relationship between speed and HR until HRmax (speed 26.0 km h− 1, 233 ± 4.2 bpm), then HR plateaued (R2 = 97.14%, P < 0.001). This study has documented the type of work done by cattle dogs and has shown that GPS devices and HR monitors can be utilized in field conditions to assess the exercise physiology of dogs.

scholarly journals Recovery heart rates as a predictor of race position in race-fit National Hunt racehorses

2019 ◽  
Vol 15 (5) ◽  
pp. 307-312
Author(s):  
G. Wilson ◽  
C.M. McGowan
Keyword(s):  
Heart Rate ◽  
Outcome Measure ◽  
Heart Rate Recovery ◽  
Exercise Physiology ◽  
Exercise Tests ◽  
Post Exercise ◽  
Interval Exercise ◽  
Global Positioning ◽  
Race Horses ◽  
Peak Speed

Prediction of race-fitness using the principles of excess post-exercise oxygen consumption is a potentially valuable applied exercise physiology tool. We hypothesised that horses with a faster heart rate recovery (HRR) after a field test would perform better in their subsequent race. Twenty mature (17 experienced, 3 unraced) National Hunt horses (15 geldings, 5 mares; 6.5±1.1 years; 489±33.5 kg), underwent 34 pre-race 3-interval field exercise tests using telemetric heart rate (HR) and global positioning satellite (GPS) monitoring on a 1,400 m track inclined 32 m. Horses were classified into 3 groups based on post-exercise HRR values obtained 1 minute after peak HR during interval 3 (>140 bpm; unfit; 120-140 bpm; fit-to-race; <120 bpm; fully fit). All horses were from the same yard, under the same management and in their final stage of training (race-ready). Horses were excluded if they were lame or clinically unwell. The outcome measure of finishing in the top third of the field was compared to classification using 2×2 tables (Statcalc, EpiInfo). Peak HR, peak speed and 1 min HRR were 213.4±5.1 bpm, 49.3±1.8 kph and 125.3±15.8 for interval 3. Horses classified as unfit (n=8) did not race. Fully fit and fit-to-race horses competed in 26 jump races (23 hurdles, 3 bumper; 3,200-5,000 m). Fully fit (n=16) horses were more likely to finish in the top 3rd of the field than fit-to-race (n=10) (odds ratio 12.0; 95% confidence interval 1.8-81.7; P=0.01). We conclude that HRR following interval exercise can be used as a predictor of race position in National Hunt racehorses and a useful guide for trainers.

The content and load of preseason field-based training in a championship-winning professional rugby league team: A case study

2022 ◽  
pp. 174795412110648
Author(s):  
Matthew Fairbank ◽  
Jamie Highton ◽  
Matthew Daniels ◽  
Craig Twist
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
High Speed ◽  
Physiological Responses ◽  
Skill Training ◽  
Rugby League ◽  
Positioning System ◽  
Global Positioning ◽  
Metabolic Distance

This study reports on the content and periodisation of the preseason field-based training for a professional rugby league team. Thirty professional male rugby league players (26 ± 5 years, 180.9 ± 6.5 cm, 94 ± 9 kg) completed an 8-week preseason. Global positioning system devices and heart rate were used to monitor physical and physiological responses of different field-based training components (speed, conditioning, rugby skill and game-based training). Rugby skill training contributed the most to the total distance covered, conditioning was the greatest contributor to high-speed running (>15 km/h) and game-based training provided the greatest high metabolic distance (>20 W/kg) and overall external load. Game-based training provided the greatest time with heart rate ≥80% estimated maximum. The weekly preseason cycle had lower loads on Monday and Thursday whereas Tuesday and Friday produced the highest loads. The preseason described herein adopted a progressive overload comprising a weekly undulating cycle. This study emphasises how skill and games-based training contributes significantly to the overall load of a professional rugby league team's preseason with more traditional conditioning promoting high-speed running load and high metabolic load.

scholarly journals Predicting the SARS-CoV-2 effective reproduction number using bulk contact data from mobile phones

2021 ◽  
Vol 118 (31) ◽  
pp. e2026731118
Author(s):  
Sten Rüdiger ◽  
Stefan Konigorski ◽  
Alexander Rakowski ◽  
Jonathan Antonio Edelman ◽  
Detlef Zernick ◽  
...  
Keyword(s):  
Reproduction Number ◽  
Gps Tracking ◽  
Contact Behavior ◽  
Social Distancing ◽  
The Social ◽  
Global Positioning ◽  
Specific Contact ◽  
Contact Data ◽  
Nonpharmaceutical Interventions

Over the last months, cases of SARS-CoV-2 surged repeatedly in many countries but could often be controlled with nonpharmaceutical interventions including social distancing. We analyzed deidentified Global Positioning System (GPS) tracking data from 1.15 to 1.4 million cell phones in Germany per day between March and November 2020 to identify encounters between individuals and statistically evaluate contact behavior. Using graph sampling theory, we estimated the contact index (CX), a metric for number and heterogeneity of contacts. We found that CX, and not the total number of contacts, is an accurate predictor for the effective reproduction number R derived from case numbers. A high correlation between CX and R recorded more than 2 wk later allows assessment of social behavior well before changes in case numbers become detectable. By construction, the CX quantifies the role of superspreading and permits assigning risks to specific contact behavior. We provide a critical CX value beyond which R is expected to rise above 1 and propose to use that value to leverage the social-distancing interventions for the coming months.

scholarly journals Cardiorespiratory interactions in humans and animals: rhythms for life

2018 ◽  
Vol 315 (1) ◽  
pp. H6-H17 ◽  
Author(s):  
Maja Elstad ◽  
Erin L. O’Callaghan ◽  
Alex J. Smith ◽  
Alona Ben-Tal ◽  
Rohit Ramchandra
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Physiological Role ◽  
Prognostic Indicator ◽  
Heart Beat ◽  
Cardiorespiratory System ◽  
Sinus Arrhythmia ◽  
The Right ◽  
Work Done

The cardiorespiratory system exhibits oscillations from a range of sources. One of the most studied oscillations is heart rate variability, which is thought to be beneficial and can serve as an index of a healthy cardiovascular system. Heart rate variability is dampened in many diseases including depression, autoimmune diseases, hypertension, and heart failure. Thus, understanding the interactions that lead to heart rate variability, and its physiological role, could help with prevention, diagnosis, and treatment of cardiovascular diseases. In this review, we consider three types of cardiorespiratory interactions: respiratory sinus arrhythmia (variability in heart rate at the frequency of breathing), cardioventilatory coupling (synchronization between the heart beat and the onset of inspiration), and respiratory stroke volume synchronization (the constant phase difference between the right and the left stroke volumes over one respiratory cycle). While the exact physiological role of these oscillations continues to be debated, the redundancies in the mechanisms responsible for its generation and its strong evolutionary conservation point to the importance of cardiorespiratory interactions. The putative mechanisms driving cardiorespiratory oscillations as well as the physiological significance of these oscillations will be reviewed. We suggest that cardiorespiratory interactions have the capacity to both dampen the variability in systemic blood flow as well as improve the efficiency of work done by the heart while maintaining physiological levels of arterial CO2. Given that reduction in variability is a prognostic indicator of disease, we argue that restoration of this variability via pharmaceutical or device-based approaches may be beneficial in prolonging life.

scholarly journals Wandering as a Sociomaterial Practice: Extending the Theorization of GPS Tracking in Cognitive Impairment

2018 ◽  
Vol 29 (3) ◽  
pp. 328-344 ◽  
Author(s):  
Joseph Wherton ◽  
Trisha Greenhalgh ◽  
Rob Procter ◽  
Sara Shaw ◽  
James Shaw
Keyword(s):  
Cognitive Impairment ◽  
Professional Staff ◽  
Ethnographic Study ◽  
Gps Tracking ◽  
Positioning Systems ◽  
Health And Social Care ◽  
Global Positioning ◽  
Gps Devices ◽  
The Individual ◽  
Electronic Tracking

Electronic tracking through global positioning systems (GPSs) is used to monitor people with cognitive impairment who “wander” outside the home. This ethnographic study explored how GPS-monitored wandering was experienced by individuals, lay carers, and professional staff. Seven in-depth case studies revealed that wandering was often an enjoyable and worthwhile activity and helped deal with uncertainty and threats to identity. In what were typically very complex care contexts, GPS devices were useful to the extent that they aligned with a wider sociomaterial care network that included lay carers, call centers, and health and social care professionals. In this context, “safe” wandering was a collaborative accomplishment that depended on the technology’s materiality, affordances, and aesthetic properties; a distributed knowledge of the individual and the places they wandered through, and a collective and dynamic interpretation of risk. Implications for design and delivery of GPS devices and services for cognitive impairment are discussed.

scholarly journals Development of a Simulated Round of Golf

2009 ◽  
Vol 4 (4) ◽  
pp. 506-516 ◽  
Author(s):  
Philip R. Hayes ◽  
Kjell van Paridon ◽  
Duncan N. French ◽  
Kevin Thomas ◽  
Dan A. Gordon
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
Physiological Responses ◽  
Gps Data ◽  
Positioning System ◽  
Typical Error ◽  
Global Positioning ◽  
The Mean ◽  
Physiological Demands ◽  
The Impact

Purpose:The aim of this study was to develop a laboratory-based treadmill simulation of the on-course physiological demands of an 18-hole round of golf and to identify the underlying physiological responses.Methods:Eight amateur golfers completed a round of golf during which heart rate (HR), steps taken, and global positioning system (GPS) data were assessed. The GPS data were used to create a simulated discontinuous round on a treadmill. Steps taken and HR were recorded during the simulated round.Results:During the on-course round, players covered a mean (±SD) of 8,251 ± 450 m, taking 12,766 ± 1,530 steps. The mean exercise intensity during the on-course round was 31.4 ± 9.3% of age-predicted heart rate reserve (%HRR) or 55.6 ± 4.4% of age-predicted maximum HR (%HRmax). There were no significant differences between the simulated round and the on-course round for %HRR (P = .537) or %HR max (P = .561) over the entire round or for each individual hole. Furthermore, there were no significant differences between the two rounds for steps taken. Typical error values for steps taken, HR, %HRmax, and %HRR were 1,083 steps, ±7.6 b·min-1, ±4.5%, and ±8.1%, respectively.Conclusion:Overall, the simulated round of golf successfully recreated the demands of an on-course round. This simulated round could be used as a research tool to assess the extent of fatigue during a round of golf or the impact of various interventions on golfers.

MOTOR VEHICLE SAFETY SYSTEM BASED MIKROKONTROLLER ATmega328 USE SMS GATE WAY AND MODUL GPS

2020 ◽  
Vol 4 (1) ◽  
pp. 34
Author(s):  
Zul Azhar ◽  
Fathurrahman Fathurrahman
Keyword(s):  
Global Positioning System ◽  
Motor Vehicle ◽  
Tracking System ◽  
Security System ◽  
Motor Vehicles ◽  
Gps Tracking ◽  
Successful Case ◽  
Global Positioning ◽  
System Module ◽  
Gps Devices

<p><em>Motorcycle theft cases are increasing lately. However, the level of successful case disclosure by the police is classified as minimal. One of the reasons is the difficulty of the investigating team to locate the stolen vehicle. One solution that can be done is to install a tracker on a motorcycle. With the development of technology, we can use GPS devices as a</em><em></em><em> tool to track vehicles from theft. The general objective of this research is to reduce the crime rate of motorcycle theft that currently occurs in Indonesia. The specific design objectives are: (1). Facilitate the security apparatus (2). Eliminate public anxiety about motorbike theft cases. For that we need a better security system as a safety for motor vehicles. This tool is equipped with features or services that support services on motorbikes, namely: SMS / SMS Gateway/ SIM800L Module, ATMega328 Microcontroller, GPS (Global Positioning System) Module, and other supporting devices. This tool is connected to an Android device with a GPS tracking system by showing the location of the missing motor vehicle. It is hoped that this security system design can increase the level of security and reduce cases of theft in motor vehicles. This system has also been tested on motorbikes with good results.</em></p>

Game Activity and Physiological Responses of Young Tennis Players in a Competition With 2 Consecutive Matches in a Day

2019 ◽  
Vol 14 (7) ◽  
pp. 887-893 ◽  
Author(s):  
Cesar Gallo-Salazar ◽  
Juan Del Coso ◽  
David Sanz-Rivas ◽  
Jaime Fernandez-Fernandez
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
Perceived Exertion ◽  
Physiological Responses ◽  
Total Duration ◽  
Tennis Players ◽  
Global Positioning ◽  
Recovery Strategies ◽  
Game Activity ◽  
Rest Time

Purpose: To determine whether the game activity and physiological responses of young tennis players differed depending on the session of play (eg, morning [MOR] vs afternoon [AFT]) and the final match outcome (eg, winners vs losers) during a simulated competition with 2 matches on the same day. Methods: A total of 12 well-trained male tennis players (age 14.5 [0.8] y) took part in a simulated competition of two 3-set matches separated by 3 h. All the matches were video recorded, and the participants were monitored using 10-Hz global positioning system units including a heart-rate monitor. Effect-size (ES) statistics were used to investigate the magnitudes of the differences. Results: During the AFT matches, in absolute terms, players covered longer total distance (ES = moderate) and ran more distance between 0 and ≤4 m·s−1 (ES = small to large) than in MOR matches. Total duration was also longer (ES = large) in the AFT, where the rest time between rallies was also longer (ES = very large). Heart rate was similar during AFT and MOR matches, but higher rates of perceived exertion (ES = moderate) were reported in the AFT. Only peak running velocity was observed to be likely higher for losers than for winners (ES = small). Conclusions: Game activity and physiological responses of young tennis players differ when 2 consecutive matches are played on the same day. These data might help elucidate the need for specific precompetition training loads and/or between-matches/sessions recovery strategies when facing overloaded competitions.

scholarly journals How Do Avalanche Dogs (and Their Handlers) Cope with Physical Exercise? Heart Rate Changes during Endurance in a Snowy Environment

Animals ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 168
Author(s):  
Laura Menchetti ◽  
Martina Iaboni ◽  
Michele Matteo Santoro ◽  
Gabriella Guelfi ◽  
Silvana Diverio
Keyword(s):  
Heart Rate ◽  
Working Environment ◽  
Exercise Heart Rate ◽  
Physical Conditions ◽  
Global Positioning ◽  
Working Dogs ◽  
Physical Distress ◽  
Exercise Endurance ◽  
Multivariable Models ◽  
Endurance Activity

This study aimed to assess the heart rate (HR) responses of avalanche SAR dogs and handlers under working field conditions. Thirteen SAR units (dogs and handlers) performed an exercise (Endurance) consisting of approximately 5.5 km of rough tracks through deep snow, at an altitude of 1991–2250 m.a.s.l. The exercise was repeated twice for each of the two different tracks. Both handlers and dogs were equipped with a global positioning satellite/heart rate (GPS/HR) system (Polar®). Multivariable models were used to evaluate the effects of environmental (i.e., gradient, altitude, track, and time) and intrinsic (i.e., speed, repetition, and breed) factors on changes from baseline HR (Δ%HR). The dog’s Δ%HR was greater in the flat and uphill compared with downhill, and increased progressively as the speed increased (p < 0.001). Moreover, it rose at altitudes above 2100 m.a.s.l. and peaked after 30 min of the Endurance activity (p < 0.01). These findings indicated that HR monitors could be a valuable tool to contribute to the evaluation of avalanche dogs’ fitness in their real working environment. In contrast, the lack of correlation between the dogs’ and handlers’ HR changes suggests that handlers might not perceive the physical conditions of their dog in real-time. Thus, implementing protocols to monitor avalanche SAR dogs’ fitness using a GPS/HR monitoring system could help handlers to tailor the training and workload and to detect the risk factors for physical distress of working dogs.

Role of expectancy in physiological responses to sound recognition of musical dissonance and timbral change

2021 ◽  
pp. 030573562110102
Author(s):  
Marino Jover-Fernández ◽  
Miguel-Angel Serrano ◽  
Elena Saiz-Clar ◽  
José-Manuel Reales
Keyword(s):  
Heart Rate ◽  
Prediction Error ◽  
Skin Conductance Response ◽  
Physiological Responses ◽  
Sound Recognition ◽  
Music Listening ◽  
Musical Excerpts ◽  
Events Detection ◽  
Brain Stem Reflex

Recently, it has been suggested that tonal violations produce greater skin conductance response (SCR) than timbral violations in music listening. However, it is unknown how people focus their attention during musical excerpts. The aim of this study is to replicate previous research considering two psychophysiological mechanisms: prediction error and brain stem reflex. Twenty-seven nonmusicians were instructed to listen six melodies and detect three altered conditions in one note: a dissonance (note out-of-key), a timbral change, and dissonance which changes in timbre and tone ( timdis). Amplitudes of SCR, heart rate (HR), and respiration rate (RSPR) were analyzed. In addition, the frequency of SCR and the percentage of musical events detection were measured. Results showed no significant differences either on amplitude of SCR or on respiratory rate. However, perception of timdis produced an increase in HR higher than dissonance ( p < .05) and the timbre condition had a higher frequency of SCR than dissonance ( p < .05). In addition, participants only detected 59.3% of dissonances but they were aware of 90% of notes in-key ( original melody). Finally, there was no significant correlation between percentage of detection and frequency of SCR. Results are discussed based on the prediction error mechanism, a theoretical model of expectation.

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