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المؤلفون: Penny L. Houghtaling, Gordon Blackburn, Zade Akhrass, Robert Wang, Muhammad Etiwy, Dermot Phelan, Hoda Javadikasgari, Lauren Gillinov, A. Marc Gillinov, Alaa Alashi, Milind Y. Desai, Stephen M. Gillinov
المصدر: Cardiovasc Diagn Ther
مصطلحات موضوعية: medicine.medical_specialty, Rehabilitation, Adult patients, business.industry, medicine.medical_treatment, Wearable computer, 030229 sport sciences, 030204 cardiovascular system & hematology, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, Heart rate, Cardiology, medicine, Original Article, In patient, Erratum, Treadmill, Cardiology and Cardiovascular Medicine, business, Standard ECG
الوصف: Background: To assess the accuracy of four wearable heart rate (HR) monitors in patients with established cardiovascular disease enrolled in phase II or III cardiac rehabilitation (CR). Methods: Eighty adult patients enrolled in phase II or III CR were monitored during a CR session that included exercise on a treadmill and/or stationary cycle. Participants underwent HR monitoring with standard ECG limb leads, an electrocardiographic (ECG) chest strap monitor (Polar H7), and two randomly assigned wrist-worn HR monitors (Apple Watch, Fitbit Blaze, Garmin Forerunner 235, TomTom Spark Cardio), one on each wrist. HR was recorded at rest and at 3, 5, and 7 minutes of steady-state exercise on the treadmill and stationary cycle. Results: Across all exercise conditions, the chest strap monitor (Polar H7) had the best agreement with ECG (r c =0.99) followed by the Apple Watch (r c =0.80), Fitbit Blaze (r c =0.78), TomTom Spark (r c =0.76) and Garmin Forerunner (r c =0.52). There was variability in accuracy under different exercise conditions. On the treadmill, only the Fitbit Blaze performed well (r c =0.76), while on the stationary cycle, Apple Watch (r c =0.89) and TomTom Spark (r c =0.85) were most accurate. Conclusions: In cardiac patients, the accuracy of wearable, optically based HR monitors varies, and none of those tested was as accurate as an electrode-containing chest monitor. This observation has implications for in-home CR, as electrode-containing chest monitors should be used when accurate HR measurement is imperative.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2412a9a0232f13e2d72b6adcbe7c997
https://doi.org/10.21037/cdt.2019.04.08 -
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المؤلفون: A. Gillinov, Dermot Phelan, Hoda Javadikasgari, Milind Y. Desai, Stephen M. Gillinov, Robert Wang, Penny L. Houghtaling, Gordon Blackburn, Muhammad Etiwy
المصدر: Medicine & Science in Sports & Exercise. 49:1697-1703
مصطلحات موضوعية: Adult, Male, medicine.medical_specialty, Optical Phenomena, Physical activity, Wearable computer, Physical Therapy, Sports Therapy and Rehabilitation, 030204 cardiovascular system & hematology, 03 medical and health sciences, 0302 clinical medicine, Heart rate, Humans, Medicine, Aerobic exercise, Orthopedics and Sports Medicine, Prospective Studies, Exercise physiology, Exercise, business.industry, Heart, Equipment Design, 030229 sport sciences, Electrocardiography, Ambulatory, Physical therapy, Female, business
الوصف: Athletes and members of the public increasingly rely on wearable HR monitors to guide physical activity and training. The accuracy of newer, optically based monitors is unconfirmed. We sought to assess the accuracy of five optically based HR monitors during various types of aerobic exercise.Fifty healthy adult volunteers (mean ± SD age = 38 ± 12 yr, 54% female) completed exercise protocols on a treadmill, a stationary bicycle, and an elliptical trainer (±arm movement). Each participant underwent HR monitoring with an electrocardiogaphic chest strap monitor (Polar H7), forearm monitor (Scosche Rhythm+), and two randomly assigned wrist-worn HR monitors (Apple Watch, Fitbit Blaze, Garmin Forerunner 235, and TomTom Spark Cardio), one on each wrist. For each exercise type, HR was recorded at rest, light, moderate, and vigorous intensity. Agreement between HR measurements was assessed using Lin's concordance correlation coefficient (rc).Across all exercise conditions, the chest strap monitor (Polar H7) had the best agreement with ECG (rc = 0.996) followed by the Apple Watch (rc = 0.92), the TomTom Spark (rc = 0.83), and the Garmin Forerunner (rc = 0.81). Scosche Rhythm+ and Fitbit Blaze were less accurate (rc = 0.75 and rc = 0.67, respectively). On treadmill, all devices performed well (rc = 0.88-0.93) except the Fitbit Blaze (rc = 0.76). While bicycling, only the Garmin, Apple Watch, and Scosche Rhythm+ had acceptable agreement (rc0.80). On the elliptical trainer without arm levers, only the Apple Watch was accurate (rc = 0.94). None of the devices was accurate during elliptical trainer use with arm levers (all rc0.80).The accuracy of wearable, optically based HR monitors varies with exercise type and is greatest on the treadmill and lowest on elliptical trainer. Electrode-containing chest monitors should be used when accurate HR measurement is imperative.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dffedf1ce13738cfb549ec1d73f03130
https://doi.org/10.1249/mss.0000000000001284 -
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المؤلفون: Zade Akras, Gordon Blackburn, Robert Wang, Muhammad Etiwy, Dermot Phelan, Milind Y. Desai, A. Marc Gillinov, Lauren Gillinov, Penny L. Houghtaling, Stephen M. Gillinov, Hoda Javadikasgari, Alaa Alashi
المصدر: Cardiovascular Diagnosis and Therapy. 10:644-645
مصطلحات موضوعية: medicine.medical_specialty, Rehabilitation, Physical medicine and rehabilitation, business.industry, medicine.medical_treatment, Published Erratum, Heart rate, medicine, MEDLINE, Wearable computer, Cardiology and Cardiovascular Medicine, business
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::a4ddf75993fcaa0a17040a443bb471ca
https://doi.org/10.21037/cdt.2019.10.05 -
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المؤلفون: Kaitlyn Korn, Chad Raymond, Margo Simon, Gordon Blackburn, Leslie Cho
المصدر: Cleveland Clinic journal of medicine. 85(7)
مصطلحات موضوعية: Class (computer programming), medicine.medical_specialty, Rehabilitation, Cardiac Rehabilitation, Referral, Risk modification, business.industry, medicine.medical_treatment, MEDLINE, General Medicine, Disease, 030204 cardiovascular system & hematology, Exercise Therapy, 03 medical and health sciences, 0302 clinical medicine, Cardiovascular Diseases, Family medicine, medicine, Humans, 030212 general & internal medicine, Program referral, business, Risk Reduction Behavior
الوصف: Cardiac rehabilitation, consisting of prescribed exercise and counseling for risk modification, has proven benefits for patients with cardiovascular disease. Nevertheless, rates of referral and use remain low. Efforts to increase program referral and participation are ongoing.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8653e1c7bca4f26f601d5e70665c13a
https://pubmed.ncbi.nlm.nih.gov/30004380 -
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المؤلفون: Joshua A Hirsch, Philip E. Martin, Claudia Voelcker-Rehage, Gordon Blackburn, Amanda L. Penko, Jay L. Alberts
المصدر: Clinical Biomechanics. 29:1089-1094
مصطلحات موضوعية: Adult, Male, medicine.medical_specialty, Parkinson's disease, Biophysics, Postural instability, Disease, Article, Physical medicine and rehabilitation, Rating scale, medicine, Humans, Orthopedics and Sports Medicine, Muscle Strength, Power output, Postural Balance, Aged, Leg, business.industry, Significant difference, Parkinson Disease, Workload, Middle Aged, medicine.disease, Gait, Bicycling, Kinetics, Lower Extremity, Exercise Test, Physical therapy, Female, business
الوصف: Background Approximately 1.5 million Americans are affected by Parkinson's disease (Deponti et al., 2013) which includes the symptoms of postural instability and gait dysfunction. Currently, clinical evaluations of postural instability and gait dysfunction consist of a subjective rater assessment of gait patterns using items from the Unified Parkinson's Disease Rating Scale, and assessments can be insensitive to the effectiveness of medical interventions. Current research suggests the importance of cycling for Parkinson's disease patients, and while Parkinson's gait has been evaluated in previous studies, little is known about lower extremity control during cycling. The purpose of this study is to examine the lower extremity coordination patterns of Parkinson's patients during cycling. Methods Twenty five participants, ages 44–72, with a clinical diagnosis of idiopathic Parkinson's disease participated in an exercise test on a cycle ergometer that was equipped with pedal force measurements. Crank torque, crank angle and power produced by right and left leg were measured throughout the test to calculate Symmetry Index at three stages of exercise (20 W, 60 W, maximum performance). Findings Decreases in Symmetry Index were observed for average power output in Parkinson's patients as workload increased. Maximum power Symmetry Index showed a significant difference in symmetry between performance at both the 20 W and 60 W stage and the maximal resistance stage. Minimum power Symmetry Index did not show significant differences across the stages of the test. While lower extremity asymmetries were present in Parkinson's patients during pedaling, these asymmetries did not correlate to postural instability and gait dysfunction Unified Parkinson's Disease Rating Scale scores. Interpretation This pedaling analysis allows for a more sensitive measure of lower extremity function than the Unified Parkinson's Disease Rating Scale and may help to provide unique insight into current and future lower extremity function.
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المؤلفون: Dermot Phelan, Robert Wang, Marc Gillinov, Penny L. Houghtaling, Lauren Gillinov, Milind Y. Desai, Gordon Blackburn
المصدر: JAMA cardiology. 2(1)
مصطلحات موضوعية: Adult, medicine.medical_specialty, business.industry, 030204 cardiovascular system & hematology, Wrist, Middle Aged, Healthy Volunteers, 03 medical and health sciences, Cardiovascular monitoring, 0302 clinical medicine, medicine.anatomical_structure, Heart Rate, Heart rate, medicine, Physical therapy, Electrocardiography, Ambulatory, Humans, 030212 general & internal medicine, Cardiology and Cardiovascular Medicine, Intensive care medicine, business, Ambulatory electrocardiography
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c588aa8efc97a5f1a38406e72c4f5e5
https://pubmed.ncbi.nlm.nih.gov/27732703 -
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المؤلفون: Greg Ewald, Ann M. Swank, Eileen M. Handberg, Lawton Cooper, John R. Horton, Eric S. Leifer, Gregg C. Fonarow, Dan Bensimhon, Marianne Vest, Jerome Fleg, Steven J. Keteyian, Marie Christine Illiou, William E. Kraus, Gordon Blackburn, Lee R. Goldberg, Gene Wolfel
المصدر: Circulation: Heart Failure. 5:579-585
مصطلحات موضوعية: Male, medicine.medical_specialty, Time Factors, Lower risk, Risk Assessment, Article, law.invention, Oxygen Consumption, Randomized controlled trial, Predictive Value of Tests, Risk Factors, law, Internal medicine, Clinical endpoint, Humans, Medicine, Aged, Proportional Hazards Models, Exercise Tolerance, business.industry, Proportional hazards model, Hazard ratio, VO2 max, Recovery of Function, Middle Aged, medicine.disease, Survival Analysis, United States, Exercise Therapy, Hospitalization, Treatment Outcome, Heart failure, Predictive value of tests, Chronic Disease, Exercise Test, Cardiology, Physical therapy, Female, Cardiology and Cardiovascular Medicine, business, Heart Failure, Systolic
الوصف: Background— The prognostic ability of a single measurement of peak oxygen uptake (VO 2 ) is well established in patients with chronic heart failure. The relation between a change in peak VO 2 and clinical outcomes is not well defined. Methods and Results— This investigation determined whether an increase in peak VO 2 was associated with a lower risk of the primary end point of time to all-cause mortality or all-cause hospitalization and 3 secondary end points. In Heart Failure and a Controlled Trial to Investigate Outcomes of Exercise Training, an exercise training trial for patients with systolic heart failure, cardiopulmonary exercise tests were performed at baseline and ≈3 months later in 1620 participants. Median peak VO 2 in the combined sample increased from 15.0 (11.9–18.0 Q1–Q3) to 15.4 (12.3–18.7 Q1–Q3) mL·kg −1 ·min −1 . Every 6% increase in peak VO 2, adjusted for other significant predictors, was associated with a 5% lower risk of the primary end point (hazard ratio=0.95; CI=0.93–0.98; P P P P Conclusions— Among patients with chronic systolic heart failure, a modest increase in peak VO 2 over 3 months was associated with a more favorable outcome. Monitoring the change in peak VO 2 for such patients may have benefit in assessing prognosis. Clinical Trial Registration— URL: http://www.clinicaltrials.gov . Unique identifier: NCT00047437.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f242e2cb6e4233896d533382953f85d
https://doi.org/10.1161/circheartfailure.111.965186 -
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المؤلفون: Timothy R. McConnell, Marianne Vest, Mary Norine Walsh, Clinton A. Brawner, Gordon Blackburn, Jerome L. Fleg, Gregg C. Fonarow, Dan Bensimhon, Mahesh J. Patel, Paul Chase, William E. Kraus, Hf-Action Investigators, Ileana L. Piña, Gregory A. Ewald, Eric S. Leifer, Jonathan K. Ehrman, Lucy W. Piner, Christopher M. O'Connor, Steven J. Keteyian, Stuart D. Russell
المصدر: Journal of the American College of Cardiology, vol 67, iss 7
مصطلحات موضوعية: Male, Pediatrics, Time Factors, 030204 cardiovascular system & hematology, Cardiorespiratory Medicine and Haematology, Cardiovascular, 0302 clinical medicine, Cause of Death, 030212 general & internal medicine, Respiratory exchange ratio, Cause of death, Chronic systolic heart failure, Cardiopulmonary exercise testing, Stroke volume, Middle Aged, Prognosis, Survival Rate, Heart Disease, Predictive value of tests, Cardiology, Public Health and Health Services, Disease Progression, Female, Cardiology and Cardiovascular Medicine, Adult, medicine.medical_specialty, Clinical Trials and Supportive Activities, survival, Article, 03 medical and health sciences, Oxygen Consumption, Clinical Research, Predictive Value of Tests, Internal medicine, medicine, sex, Humans, HF-ACTION Investigators, Survival rate, peak Vo(2), 6.7 Physical, Aged, Heart Failure, peak VO2, business.industry, Evaluation of treatments and therapeutic interventions, Stroke Volume, medicine.disease, respiratory exchange ratio, United States, Good Health and Well Being, Cardiovascular System & Hematology, Heart failure, Exercise Test, business, Systolic, Follow-Up Studies, Heart Failure, Systolic
الوصف: BackgroundData from a cardiopulmonary exercise (CPX) test are used to determine prognosis in patients with chronic heart failure (HF). However, few published studies have simultaneously compared the relative prognostic strength of multiple CPX variables.ObjectivesThe study sought to describe the strength of the association among variables measured during a CPX test and all-cause mortality in patients with HF with reduced ejection fraction (HFrEF), including the influence of sex and patient effort, as measured by respiratory exchange ratio (RER).MethodsAmong patients (n= 2,100, 29% women) enrolled in the HF-ACTION (HF-A Controlled Trial Investigating Outcomes of exercise traiNing) trial, 10 CPX test variables measured at baseline (e.g., peak oxygen uptake [Vo2], exercise duration, percent predicted peak Vo2 [%ppVo2], ventilatory efficiency) were examined.ResultsOver a median follow-up of 32 months, there were 357 deaths. All CPX variables, except RER, were related to all-cause mortality (all p< 0.0001). Both %ppVo2 and exercise duration were equally able to predict (Wald chi-square: ∼141) and discriminate (c-index: 0.69) mortality. Peak Vo2 (ml·kg(-1)·min(-1)) was the strongest predictor of mortality among men (Wald chi-square: 129) and exercise duration among women (Wald chi-square: 41). Multivariable analyses showed that %ppVo2, exercise duration, and peak Vo2 (ml·kg(-1)·min(-1)) were similarly able to predict and discriminate mortality. In men, a 10% 1-year mortality rate corresponded to a peak Vo2 of 10.9 ml·kg(-1)·min(-1) versus 5.3ml·kg(-1)·min(-1) in women.ConclusionsPeak Vo2, exercise duration, and % ppVo2 carried the strongest ability to predict and discriminate the likelihood of death in patients with HFrEF. The prognosis associated with a given peak Vo2 differed by sex. (Exercise Training Program to Improve Clinical Outcomes in Individuals With Congestive Heart Failure; NCT00047437).
وصف الملف: application/pdf
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المؤلفون: Ellen Rome, Gordon Blackburn
المصدر: ITF Coaching & Sport Science Review. 19:30-33
مصطلحات موضوعية: Earth-Surface Processes
الوصف: La recuperación puede definirse como la habilidad del cuerpo para retornar al estado de normalidad tras un esfuerzo físico o mental. En el tenis esto se aplica a la habilidad del jugador para estar listo para jugar el próximo tiro, el próximo punto, el próximo set o el próximo partido. Para un rendimiento óptimo, el jugador debe estar listo para ejecutar cada golpe con la mejor habilidad y luego recuperarse desde el punto de vista fisiológico, psicológico, táctico y de habilidad para el próximo tiro. Este artículo se centra tanto en los aspectos fisiológicos como en algunos aspectos psicológicos de la recuperación del joven tenista.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::40e01e2d3b79daba1b19eb742ac4022b
https://doi.org/10.52383/itfcoaching.v19i55.387 -
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المؤلفون: Ole J. Bjerrum, Gordon Blackburn-Munro, Frederik Rode, Tine Broløs, Dorthe G. Jensen, Mads Krogsgaard Thomsen
المصدر: European Journal of Pharmacology. 564:103-111
مصطلحات موضوعية: Male, Pain Threshold, Cyclohexanecarboxylic Acids, Gabapentin, Analgesic, Pharmacology, Rats, Sprague-Dawley, Species Specificity, Peripheral Nerve Injuries, Rats, Inbred BN, Threshold of pain, medicine, Animals, Amines, gamma-Aminobutyric Acid, Pain Measurement, Analgesics, Dose-Response Relationship, Drug, Morphine, business.industry, Reproducibility of Results, Isoxazoles, Nerve injury, Rats, Inbred F344, Hindlimb, Rats, Analgesics, Opioid, Disease Models, Animal, Allodynia, Pharmacogenetics, Rats, Inbred Lew, Anesthesia, Neuropathic pain, Hyperalgesia, Neuralgia, medicine.symptom, business, Gaboxadol, medicine.drug
الوصف: Neuropathic pain conditions can encompass a diverse constellation of signs and symptoms consisting of sensory deficits, allodynia and hyperalgesia. Animal models of neuropathic pain have enabled the identification of key pathophysiological changes occurring within nociceptive pathways as a result of injury, and serve an invaluable role for preclinical screening of novel analgesic candidates. We have produced the first systematic description of the development and maintenance, and the pharmacological sensitivity of nociceptive behaviours in four rat strains with different genetic background (outbred Sprague-Dawley and inbred Brown Norway, Lewis and Fischer 344 rats), using the spared nerve injury model of peripheral neuropathic pain. Hindpaw mechanical hypersensitivity was evident from 7 to 30 days post-injury in all four strains, developing most quickly and severely in Fischer 344 rats; Lewis rats were least affected. Morphine (6 but not 3 mg/kg, s.c.) and gabapentin (100 but not 50 mg/kg, s.c.) had significant antiallodynic and antihyperalgesic actions in all four strains after spared nerve injury, although marked differences in potency across strains were observed. Two strains (Fischer 344 rats and Lewis) were insensitive to the antihyperalgesic properties of gaboxadol (15 mg/kg) whereas gaboxadol (6 mg/kg) was equipotent to morphine (6 mg/kg) in two other strains (Sprague-Dawley and Brown Norway). The observed pharmacogenetic variations have important implications for the preclinical testing of drugs, and provide a basis for development of pharmacogenomics in neuropathic pain.
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