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Edith Filaire, Alain Massart, Jiewen Hua, and Christine Le Scanff

Purpose:

The aims of study were to examine the eating behaviors among 26 professional female tennis players and to assess the diurnal patterns of stress hormones through the measurement of awakening and diurnal profiles of salivary alpha-amylase (sAA) and cortisol concentrations.

Methods:

Eating behaviors were assessed through three questionnaires (Eating Attitudes Test-26; Eating Disorders Inventory 2; and Body Shape Questionnaire), food intake by a 7-day diet record, and menstrual status by questionnaire. Perceived stress scale and anxiety state were also evaluated. Saliva samples were collected at awakening, 30 min, 60 min, and 12 hr post awakening after 6-days’ rest.

Results:

Forty-six percent of tennis players presented Disordered Eating attitudes (DE) (n = 12) with a lower body mass index, and higher state anxiety as compared with the group without DE. No differences in the Perceived Stress Scale scores were noted. Mean energy intake, protein and carbohydrates intakes were lower (p > .05) in the DE group as compared with the group without DE. Although in both groups, sAA concentrations presented a decrease in the first 30 min after awakening, and then progressively rose toward the afternoon, DE players exhibited reduced concentrations of the sAA with a decrease in its overall day secretion. Moreover, they showed a higher overall day secretion of salivary cortisol and a higher Cortisol Awakening Response.

Conclusions:

These results suggest that the activity of the sympathetic nervous system is impaired whereas the cortisol awakening response is enhanced. The long-term consequences of these modifications on health remain to be elucidated.

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Leilani A. Madrigal and Patrick B. Wilson

This study assessed the hormonal and psychological responses to a free-throw shooting competition in twelve NCAA Division I female collegiate basketball players. Salivary cortisol, alpha-amylase, and testosterone were collected before and after the competition, in addition to a self-reported measure of anxiety. Using nonparametric statistics, cortisol (Z = –3.06, p = .002) and testosterone (Z = –2.67, p = .008) levels were significantly higher precompetition compared with postcompetition. There were no statistically significant differences between winners and losers for anxiety or hormone responses. Concentration disruption (rho = .63, p = .03) and total competitive anxiety (rho = .68, p = .02) were positively correlated with precompetition cortisol. Concentration disruption also correlated positively with postcompetition cortisol (rho = .62 p = .03) and postcompetition testosterone (rho = .64, p = .03). Future studies are needed to examine the psychological and physiological stress responses of basketball players during different competition tasks.

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Anna Valenzano, Fiorenzo Moscatelli, Antonio Ivano Triggiani, Laura Capranica, Giulia De Ioannon, Maria Francesca Piacentini, Sergio Mignardi, Giovanni Messina, Stefano Villani, and Giuseppe Cibelli

Purpose:

To evaluate the effect of a solo ultraendurance open-water swim on autonomic and nonautonomic control of heart rate (HR).

Methods:

A male athlete (age 48 y, height 172 cm, body mass 68 kg, BMI 23 kg/m2) underwent HR-variability (HRV) and circulating catecholamine evaluations at different times before and after an ultraendurance swim crossing the Adriatic Sea from Italy to Albania. HRV was measured in 5-min segments and quantified by time and frequency domain. Circulating catecholamines were estimated by salivary alpha-amylase (sAA) assay.

Results:

The athlete completed 78.1 km in 23:44 h:min. After arrival, sAA levels had increased by 102.6%. Time- and frequency-domain HRV indexes decreased, as well (mean RR interval, −29,7%; standard deviation of normal mean RR interval, −63,1%; square root of mean squared successive differences between normal-to-normal RR intervals, −49.3%; total power, −74.3%; low frequency, −78.0%; high frequency, −76.4%), while HR increased by 41.8%. At 16-h recovery, sAA had returned to preevent values, while a stable tachycardia was accompanied by reduced HRV measures.

Conclusion:

To the authors’ knowledge, this is the first study reporting cardiac autonomic adjustments to an extreme and challenging ultraendurance open-water swim. The findings confirmed that the autonomic drives depend on exercise efforts. Since HRV changes did not mirror the catecholamine response 16 h postevent, the authors assume that the ultraendurance swim differently influenced cardiac function by both adaptive autonomic and nonautonomic patterns.

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Ciara Sinnott-O’Connor, Thomas M. Comyns, Alan M. Nevill, and Giles D. Warrington

previously been validated in swimmers. 8 Salivary biomarkers are easily accessible and noninvasive measures which can be quantified quickly and repeatedly. 9 Saliva contains both immunity and stress biomarkers, including immunoglobulin A (IgA), alpha-amylase (AA), and cortisol, all of which have been shown

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Suzanna Russell, Marni J. Simpson, Angus G. Evans, Tristan J. Coulter, and Vincent G. Kelly

cortisol (sal-C) and salivary alpha-amylase (sal-AA), respectively. Research in basketball 11 suggests that sal-AA is sensitive to mild psychological and physical stress, 12 and sal-C cortisol may be increased in response to more challenging physical stress. Given the heightened levels of psychological

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Ana Anton-Solanas, Barry V. O’Neill, Tessa E. Morris, and Joe Dunbar

Purpose:

To assess changes in body composition and monitor cognitive function, subjective well-being, and physiological stress, as measured by salivary hormones and markers of mucosal immunity, during an Antarctic expedition.

Methods:

A 36-y-old man (188.2 cm height, 94.5 kg body mass) took part in a world-record attempt. A total-body dual-energy X-ray absorptiometry scan and measurement of 8 skinfolds and 5 girths were performed before and after the expedition. In addition, daily subjective data were recorded (sleep quality, total hours of sleep, energy levels, perceived exertion, mood, muscle soreness, and muscle/joint pain) along with distance covered and hours of physical activity per day. As a measure of cognitive function, the athlete completed a computerized battery of tasks (Axon Sports Cognitive Priming Application) every third morning. Saliva samples were collected before, during, and after the expedition to determine salivary cortisol (sCort), testosterone (sT), alpha amylase (sAA), and secretory immunoglobulin A (sIgA).

Results:

The athlete lost 5.3 kg body mass and sum of 8 skinfolds decreased from 73 mm to 59 mm from preexpedition to postexpedition. Psychomotor speed declined over the course of the expedition. sT increased and sCort decreased throughout, and sAA and sIgA peaked toward the end of the expedition.

Conclusions:

This case study provides novel data about the physiological and cognitive impact of an Antarctic expedition. The findings may inform strategies for future expeditions, allowing individuals undertaking expeditions of this nature to better prepare for success.

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Bruno Marrier, Alexandre Durguerian, Julien Robineau, Mounir Chennaoui, Fabien Sauvet, Aurélie Servonnet, Julien Piscione, Bertrand Mathieu, Alexis Peeters, Mathieu Lacome, Jean-Benoit Morin, and Yann Le Meur

.03480090092034 18. Chrousos GP. Stress and disorders of the stress system . Nat Rev Endocrinol . 2009 ; 5 : 374 – 381 . PubMed ID: 19488073 doi:10.1038/nrendo.2009.106 19488073 10.1038/nrendo.2009.106 19. Chatterton RT Jr , Vogelsong KM , Lu YC , Ellman AB , Hudgens GA . Salivary alpha-amylase

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Ben T. Stephenson, Eleanor Hynes, Christof A. Leicht, Keith Tolfrey, and Victoria L. Goosey-Tolfrey

, Burkett B , Leicht A , McKean M . Effect of chronic training on heart rate variability, salivary IgA and salivary alpha-amylase in elite swimmers with a disability . PLoS ONE . 2015 ; 10 : e0127749 . PubMed ID: 26043224 doi:10.1371/journal.pone.0127749 26043224 10.1371/journal.pone.0127749 11

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Pedro Figueiredo, George P. Nassis, and João Brito

.3389/fpsyg.2017.00456 28439244 6. Dunbar J , Hazell G , Jehanli A . Investigating a dual sIgA and alpha-amylase point of care test in the sporting environment . Abstract presented at the 12th Symposium of the International Society of Exercise and Immunology ; July 6–9 , 2015 . Vienna, Austria

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Ben T. Stephenson, Christof A. Leicht, Keith Tolfrey, and Victoria L. Goosey-Tolfrey

; 12 ( suppl 2 ): S2-87 – S2-94 . PubMed ID: 27834554 doi:10.1123/ijspp.2016-0404 10.1123/ijspp.2016-0404 29. Leicht CA , Paulson TAW , Goosey-Tolfrey VL , Bishop NC . Salivary alpha amylase not chromogranin A reflects sympathetic activity: exercise responses in elite male wheelchair