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  1. Book ; Online: Hydration and Fluid Needs during Physical Activity

    Casa, Douglas J. / Kavouras, Stavros

    2022  

    Keywords Humanities ; Social interaction ; hydration ; fluid ; carbohydrate ; professional ; soccer ; hydration status ; water-electrolyte balance ; acid-base balance ; fluids osmolarity ; team sports ; nutrition ; women in sport ; heat acclimation ; dehydration ; kidney injury ; performance ; thirst ; drinking ; sweat ; sodium ; hyponatremia ; overhydration ; marathon ; triathlon ; hot temperature ; electrolyte balance ; body temperature regulation ; acclimatization ; ultra-endurance running ; running ; recreational running ; tropical climate ; sweat electrolyte ; fluid replacement ; hydration plan ; euhydration ; children ; urine ; hypohydration ; hyperhydration ; fluid loss ; fluid balance ; total body water ; physical activity ; sweat rate ; fluid consumed ; pathogenic eating behaviors ; American tackle football ; voluntary fluid intake ; thirst perception
    Language 0|e
    Size 1 electronic resource (154 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021617761
    ISBN 9783036537481 ; 3036537481
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book: Preventing sudden death in sport and physical activity

    Casa, Douglas J.

    2012  

    Author's details ed. by Douglas J. Casa
    Keywords Death, Sudden, Cardiac / prevention & control ; Athletic Injuries / prevention & control
    Subject code 617.1/027
    Language English
    Size XXXII, 367 S. : Ill., graph. Darst., 26 cm
    Publisher Jones & Bartlett Learning
    Publishing place Sudbury, Mass
    Publishing country United States
    Document type Book
    Note Includes bibliographical references and index
    HBZ-ID HT017141237
    ISBN 978-0-7637-8554-3 ; 0-7637-8554-7
    Database Catalogue ZB MED Medicine, Health

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  3. Article: Cooling Modality Effectiveness and Mortality Associate[d] with Prehospital Care of Exertional Heat Stroke Casualties.

    Stearns, Rebecca L / Jardine, John / Yeargin, Susan W / Szymanski, Michael R / Casa, Douglas J

    The Journal of emergency medicine

    2024  Volume 66, Issue 3, Page(s) e397–e399

    MeSH term(s) Humans ; Heat Stroke/complications ; Heat Stroke/therapy ; Hypothermia, Induced ; Cold Temperature ; Emergency Medical Services
    Language English
    Publishing date 2024-01-15
    Publishing country United States
    Document type Letter
    ZDB-ID 605559-x
    ISSN 0736-4679
    ISSN 0736-4679
    DOI 10.1016/j.jemermed.2023.10.034
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Comparison between digital and paper urine color to assess hydration status.

    Sekiguchi, Yasuki / Martin, David G / Yoshihara, Ayami / Casa, Douglas J

    European journal of nutrition

    2023  Volume 62, Issue 4, Page(s) 1915–1919

    Abstract: Purpose: The purpose of this study was to investigate associations between digital urine color and paper urine color with other urine indices to assess hydration status.: Methods: Twelve male subjects (mean ± standard deviation; age, 26 ± 8 years; ... ...

    Abstract Purpose: The purpose of this study was to investigate associations between digital urine color and paper urine color with other urine indices to assess hydration status.
    Methods: Twelve male subjects (mean ± standard deviation; age, 26 ± 8 years; body mass, 57.8 ± 5.3 kg; height, 177.5 ± 8.9 cm; VO
    Results: There were extremely large associations found between digital urine color and paper urine color (r = 0.926, p < 0.001). Correlation coefficients showing associations with USG and UOsmo were similar between digital urine color (USG, r = 0.695, p < 0.001; UOsmo, r = 0.555, p < 0.001) and paper urine color (USG, r = 0.713, p < 0.001; UOsmo, r = 0.570, p < 0.001). Bland-Altman analysis indicated that no proportional bias was observed between digital and paper urine colors (bias, - 0.148; SD of bias, 0.492; 95% LOA, - 1.11, 0.817; p = 0.094).
    Conclusions: Strong associations were found between digital and paper urine colors with no proportional bias. Furthermore, the degree of associations with USG and UOsmo was similar between digital and paper urine color. These results indicate that digital urine color is a useful tool to assess hydration status and this method could be used as an alternative method to using paper urine color.
    MeSH term(s) Humans ; Male ; Adolescent ; Young Adult ; Adult ; Dehydration/diagnosis ; Dehydration/urine ; Osmolar Concentration ; Urinalysis/methods ; Hot Temperature ; Biomarkers/urine ; Urine ; Specific Gravity ; Color
    Chemical Substances Biomarkers
    Language English
    Publishing date 2023-02-01
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1466536-0
    ISSN 1436-6215 ; 1436-6207
    ISSN (online) 1436-6215
    ISSN 1436-6207
    DOI 10.1007/s00394-022-03037-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The effect of heat mitigation strategies on thermoregulation and productivity during simulated occupational work in the heat in physically active young men.

    Morrissey-Basler, Margaret C / Brewer, Gabrielle J / Anderson, Travis / Adams, William M / Navarro, John S / Marcelino, Monique / Martin, David G / Casa, Douglas J

    Frontiers in sports and active living

    2024  Volume 5, Page(s) 1274141

    Abstract: Purpose: To investigate heat stress mitigation strategies on productivity and thermoregulatory responses during simulated occupational work in the heat.: Methods: Thirteen physically active men (age, 25 ± 4 years; body mass,77.8 ± 14.7 kg; VO: ... ...

    Abstract Purpose: To investigate heat stress mitigation strategies on productivity and thermoregulatory responses during simulated occupational work in the heat.
    Methods: Thirteen physically active men (age, 25 ± 4 years; body mass,77.8 ± 14.7 kg; VO
    Results: [COOL + VEST + H
    Conclusion: Our results suggest that during a simulated occupational shift in a laboratory setting, additional heat mitigation strategies ([COOL + VEST + H
    Language English
    Publishing date 2024-01-11
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2624-9367
    ISSN (online) 2624-9367
    DOI 10.3389/fspor.2023.1274141
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Heatstroke.

    Mayer, Thom / Casa, Douglas J

    The New England journal of medicine

    2019  Volume 381, Issue 12, Page(s) 1186–1187

    MeSH term(s) Heat Stroke ; Humans
    Language English
    Publishing date 2019-09-18
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 207154-x
    ISSN 1533-4406 ; 0028-4793
    ISSN (online) 1533-4406
    ISSN 0028-4793
    DOI 10.1056/NEJMc1909690
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Perceived challenges and barriers for females working in the heat.

    Morrissey-Basler, Margaret C / Eason, Christianne M / Clines, Stephanie H / Kaufman, Cecilia E / Casa, Douglas J

    Journal of occupational and environmental hygiene

    2023  Volume 21, Issue 2, Page(s) 97–107

    Abstract: Given rising temperatures, globally, heat exposures and catastrophic heat illnesses are a major concern in laborer and industrial sectors. The purpose of this study was to evaluate the perceptions of females laboring in the heat regarding challenges and ... ...

    Abstract Given rising temperatures, globally, heat exposures and catastrophic heat illnesses are a major concern in laborer and industrial sectors. The purpose of this study was to evaluate the perceptions of females laboring in the heat regarding challenges and barriers encountered in their respective industries while working in the heat. A consensual qualitative research (CQR) design was employed to gain information related to participant occupational and job characteristics, feelings while working in the heat, adjustments made by employers when they work in the heat, and their experience working in the heat specific to their identified sex. Females were eligible to participate if they were currently employed in an environment that required them to work in the heat. Twelve females participated in a single, 45-60 min one-on-one semi-structured interview. Participants reported working in the manufacturing, agriculture, tourism, and railroad industries. Upon completion of data analysis, one primary theme was identified: heat stress mitigation strategies, which were further broken down into two subthemes of formal strategies provided by the employer and informal strategies driven by the employees. Participants indicated there was a lack of heat stress prevention strategies implemented by their employers, which resulted in employees creating their own strategies to protect themselves and their coworkers from heat stress. Results indicated there are limited heat stress prevention strategies that are provided in industries that include females working in the heat. Unique considerations should be made to protect this population from the dangers of heat stress and must go beyond workers protecting themselves.
    MeSH term(s) Humans ; Female ; Qualitative Research ; Industry ; Heat Stress Disorders/prevention & control ; Heat Stress Disorders/epidemiology ; Temperature ; Agriculture
    Language English
    Publishing date 2023-11-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 2131820-7
    ISSN 1545-9632 ; 1545-9624
    ISSN (online) 1545-9632
    ISSN 1545-9624
    DOI 10.1080/15459624.2023.2268725
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Recommended water immersion duration for the field treatment of exertional heat stroke when rectal temperature is unavailable.

    Flouris, Andreas D / Notley, Sean R / Stearns, Rebecca L / Casa, Douglas J / Kenny, Glen P

    European journal of applied physiology

    2023  Volume 124, Issue 2, Page(s) 479–490

    Abstract: Introduction: The recommended treatment for exertional heat stroke is immediate, whole-body immersion in < 10 °C water until rectal temperature (T: Methods: We compiled data for 54 men and 18 women from 7 previous laboratory studies and derived ... ...

    Abstract Introduction: The recommended treatment for exertional heat stroke is immediate, whole-body immersion in < 10 °C water until rectal temperature (T
    Methods: We compiled data for 54 men and 18 women from 7 previous laboratory studies and derived immersion durations for reaching 38.6 °C T
    Results: Age, height, weight, body surface area, body fat, fat mass, lean body mass, and peak oxygen uptake were weakly associated with the cooling time to a safe T
    Conclusion: The reported immersion durations are effective for > 90% of exertional heat stroke patients with pre-immersion T
    MeSH term(s) Male ; Humans ; Female ; Body Temperature ; Temperature ; Immersion ; Water ; Exercise ; Heat Stroke/therapy ; Heat Stroke/diagnosis ; Cold Temperature
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2023-08-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 124793-1
    ISSN 1439-6327 ; 1432-1025 ; 0301-5548 ; 1439-6319
    ISSN (online) 1439-6327 ; 1432-1025
    ISSN 0301-5548 ; 1439-6319
    DOI 10.1007/s00421-023-05290-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Relationship Between Running Biomechanics and Core Temperature Across a Competitive Road Race.

    DeJong Lempke, Alexandra F / Szymanski, Michael R / Willwerth, Sarah B / Brewer, Gabrielle J / Whitney, Kristin E / Meehan, William P / Casa, Douglas J

    Sports health

    2024  , Page(s) 19417381241236877

    Abstract: Background: Outdoor races introduce environmental stressors to runners, and core temperature changes may influence runners' movement patterns. This study assessed changes and determined relationships between sensor-derived running biomechanics and core ... ...

    Abstract Background: Outdoor races introduce environmental stressors to runners, and core temperature changes may influence runners' movement patterns. This study assessed changes and determined relationships between sensor-derived running biomechanics and core temperature among runners across an 11.27-km road race.
    Hypothesis: Core temperatures would increase significantly across the race, related to changes in spatiotemporal biomechanical measures.
    Study design: Cross-sectional cohort study.
    Level of evidence: Level 3.
    Methods: Twenty runners (9 female, 11 male; age, 48 ± 12 years; height, 169.7 ± 9.1 cm; mass, 71.3 ± 13.4 kg) enrolled in the 2022 Falmouth Road Race were recruited. Participants used lightweight technologies (ingestible thermistors and wearable sensors) to monitor core temperature and running biomechanics throughout the race. Timestamps were used to align sensor-derived measures for 7 race segments. Observations were labeled as core temperatures generally within normal limits (<38°C) or at elevated core temperatures (≥38°C). Multivariate repeated measures analyses of variance were used to assess changes in sensor-derived measures across the race, with Bonferroni post hoc comparisons for significant findings. Pearson's
    Results: Eighteen participants developed hyperthermic core temperatures (39.0°C ± 0.5°C); core temperatures increased significantly across the race (
    Conclusion: Core temperatures and kinetics increased significantly across a race, yet these outcomes were not strongly correlated. The observed kinetic changes may have been attributed to fatigue-related influences over the race.
    Clinical relevance: Clinicians may not expect changes in biomechanical movement patterns to signal thermal responses during outdoor running in a singular event.
    Language English
    Publishing date 2024-03-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2508802-6
    ISSN 1941-0921 ; 1941-7381
    ISSN (online) 1941-0921
    ISSN 1941-7381
    DOI 10.1177/19417381241236877
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Exertional Heatstroke Survivors' Knowledge and Beliefs about Exertional Heatstroke Diagnosis, Treatment, and Return to Play.

    Miller, Kevin C / Amaria, Noshir Y / Casa, Douglas J / Jardine, John F / Stearns, Rebecca L / O'Connor, Paul / Scarneo-Miller, Samantha E

    Journal of athletic training

    2024  

    Abstract: Context: Little information exists regarding what exertional heatstroke (EHS) survivors know and believe about EHS best practices. Understanding this would help clinicians focus educational efforts to ensure survival and safe return-to-play following ... ...

    Abstract Context: Little information exists regarding what exertional heatstroke (EHS) survivors know and believe about EHS best practices. Understanding this would help clinicians focus educational efforts to ensure survival and safe return-to-play following EHS.
    Objective: We sought to better understand what EHS survivors knew about EHS seriousness (e.g., lethality, short- and long-term effects), diagnosis and treatment procedures, and recovery. Design: Multi-year, cross-sectional, descriptive design.
    Setting: An 11.3-km road race located in the Northeastern United States in August 2022 and 2023.
    Patients or other participants: Forty-two of 62 runners with EHS (15 women, 27 men; age: 33±15 y; pre-treatment rectal temperature [TREC]: 41.5±0.9°C).
    Interventions: Medical professionals evaluated runners requiring medical attention at the finish line. If they observed TREC ≥40°C with concomitant central nervous system dysfunction (CNS) EHS was diagnosed and patients were immersed in a 189.3-L tub filled with ice-water. Before medical discharge, we asked EHS survivors 15 questions about their experience and knowledge of select EHS best practices. Survey items were piloted and validated by experts and laypersons a priori (content validity index ≥0.88 for items and scale).
    Main outcome measures: Survey responses.
    Results: Sixty-seven percent (28/42) of patients identified EHS as potentially fatal and 76% (32/42) indicated it negatively affected health. Seventy-nine percent (33/42) correctly identified TREC as the best temperature site to diagnose EHS. Most patients (74%, 31/42) anticipated returning to normal exercise within 1 week post-EHS; 69% (29/42) stated EHS would not impact future race participation. Patients (69%, 29/42) indicated it was important to tell their primary care physician about their EHS.
    Conclusions: Our patients were knowledgeable on the potential seriousness and adverse health effects of EHS and the necessity of TREC for diagnosis. However, educational efforts should be directed towards helping patients understand safe recovery and return-to-play timelines following EHS.
    Language English
    Publishing date 2024-04-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2070051-9
    ISSN 1938-162X ; 1062-6050
    ISSN (online) 1938-162X
    ISSN 1062-6050
    DOI 10.4085/1062-6050-0677.23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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