Circadian rhythms and athletic performance

Winget, C. M.; Deroshia, C. W.; Holley, Daniel C.

doi:10.1249/00005768-198510000-00002

Cited by 196 publications

(118 citation statements)

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“…A previous study (16) did not find differences in responses to exercise between morning and evening types; however, another investigation demonstrated that evening individuals had a higher energetic arousal in the evening than in the morning (17). The influence of exercise on melatonin secretion supports the hypothesis that physical activity may be a significant zeitgeber ("time-giver") in humans (18).…”

Section: Introductionmentioning

confidence: 62%

Evaluation of behavioral states among morning and evening active healthy individuals

Hidalgo

Camozzato

Cardoso

et al. 2002

Braz J Med Biol Res

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The Horne-Östberg questionnaire partly covers some factors that may be important determinants of peak time and characterize patterns of behavior. We conducted a study for the evaluation of self-reported behavioral states (hunger sensation, availability for study, physical exercise, solving daily problems, and time preferences) as expressions of underlying cyclic activity. Three hundred and eighteen community subjects without history of medical, psychiatric, or sleep disorders were evaluated in a cross-sectional design. A self-report about daily highest level of activity was used to categorize individuals into morning, evening, and indifferently active. Time-related behavioral states were evaluated with 23 visual analog questions. The responses to most analogic questions were significantly different between morning and evening active subjects. Logistic regression analysis identified a group of behaviors more strongly associated with the self-reported activity pattern (common wake up time, highest subjective fatigue, as well as wake up, bedtime, exercise and study preferences). These findings suggested that the patterns of activity presented by normal adults were related to specific common behavioral characteristics that may contribute to peak time.

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Section: Introductionmentioning

confidence: 62%

Evaluation of behavioral states among morning and evening active healthy individuals

Hidalgo

Camozzato

Cardoso

et al. 2002

Braz J Med Biol Res

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“…It can, thus, be concluded that there is a circadian rhythm in some specific skills performance in boy's footballer. Indeed, the association between the diurnal temperature variation and the different aspects of physical (Souissi et al, 2010;Winget et al, 1985), mental , perceptual, sensory motor, psychomotor (Weipeng et al, 2011) and cognitive performances (Winget et al, 1985) were found on many studies in adults Winget et al, 1985) and in children ( (Souissi et al, 2010) performances. Usually, peak performances were found to occur in the early evening and correspond to the maximum body (Aloui et al, 2012;Reilly et al, 2007, Bernard et al, 1998Melhim et al, 1993;Souissi et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Time of Day Effect on Soccer—Specific Field Tests in Tunisian Boy Players

Gharbi¹,

Masmoudi²,

Ghorbel³

et al. 2013

APE

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The purpose of this study was to investigate the diurnal variation in some specific skills performance during field testing in boy's footballer. In a balanced and randomized study design, 15 boys (mean ± SD; age 12.7 ± 1.1 years; height 1.54 ± 9.1 m; body mass 45.1 ± 3.2 kg) participated in the study. Subjects performed some specific soccer skills (kicking accuracy, ball control with the body, ball control with the head, coordination test, zigzag running (i.e., agility), zigzag with the Ball (i.e., dribbling) and the skill index (i.e., the ratio of the zigzag running without and with the ball) at two different times of day: 07:00 and 17:00 h. Moreover, intra-aural temperature was measured at both time-of-days. Intra-aural temperature was higher in the evening than the morning (P < 0.01). Likewise, a significant time-of-day effect was found for dribbling (P < 0.05) and agility (P < 0.001) with higher performances observed at 17:00 h. However, no significant differences were noticed between 07:00 and 17:00 h for the skill index, kicking accuracy, ball control with the body, ball control with the head and coordination tests. The intra-aural temperature was found to be significantly correlated with the speed of dribbling and agility (P < 0.001). In conclusion, a diurnal variation in intra-aural temperature, agility and dribbling were shown to be present. No time-of-day effect was observed for the coordination, skill index, kicking accuracy and juggling performance.

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“…In order to assess the measurement tools in a relevant context for endurance exercise in the heat, an incremental exercise test was completed on each athlete volunteer. Re-tests of T SKIN measurements were separated by one week to prevent an acclimation effect (Barnett & Maughan 1993) and taken at the same time of day (Winget 1985), with the second trial data used for validity analysis. Participants were asked to replicate their diet in the 12 hours prior to each session and refrain from alcohol, caffeine and strenuous activity for 24 hours prior to the measurements as has been previously controlled in similar studies in the field (Harper-Smith et al 2010).…”

Section: Experimental Designmentioning

confidence: 99%

Reliability and validity of skin temperature measurement by telemetry thermistors and a thermal camera during exercise in the heat

James

Richardson

Watt

et al. 2014

Journal of Thermal Biology

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Abstract. New technologies afford convenient modalities for skin temperature (T SKIN ) measurement, notably involving wireless telemetry and non-contact infrared thermometry. The purpose of this study was to investigate the validity and reliability of skin temperature measurements using a telemetry thermistor system (TT) and thermal camera (TC) during exercise in a hot environment. Each system was compared against a certified thermocouple, measuring the surface temperature of a metal block in a thermostatically controlled waterbath. Fourteen recreational athletes completed two incremental running tests, separated by one week. Skin temperatures were measured simultaneously with TT and TC compared against a hard-wired thermistor system (HW) throughout rest and exercise. Post hoc calibration based on waterbath results displayed good validity for TT (mean bias [MB] = -0.18°C, typical error [TE] = 0.18°C) and reliability (MB = -0.05°C, TE = 0.31°C) throughout rest and exercise. Poor validity (MB = -1.4°C, TE = 0.35°C) and reliability (MB = -0.65°C, TE = 0.52°C) was observed for TC, suggesting it may be best suited to controlled, static situations. These findings indicate TT systems provide a convenient, valid and reliable alternative to HW, useful for measurements in the field where traditional methods may be impractical.

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Circadian rhythms and athletic performance

Cited by 196 publications

References 0 publications

Evaluation of behavioral states among morning and evening active healthy individuals

Evaluation of behavioral states among morning and evening active healthy individuals

Time of Day Effect on Soccer—Specific Field Tests in Tunisian Boy Players

Reliability and validity of skin temperature measurement by telemetry thermistors and a thermal camera during exercise in the heat

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