Effect of time-of-day of aerobic maximal exercise on the sleep quality of trained subjects

Souissi, Mohamed Abdelkader; Chtourou, Hamdi; Zrane, Adel; Cheikh, Ridha Ben; Dogui, Mohamed; Tabka, Zouhaïr; Souissi, Nizar

doi:10.1080/09291016.2011.589159

Cited by 42 publications

(23 citation statements)

References 32 publications

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“…Our results are consistent with the previous reports which affirm that partial sleep loss affects the circadian temperature rhythm (Souissi et al 2008). After an RN, the core temperature was time-of-day dependent with highest values observed at 16:00 h. These results are coherent with those of previous studies who reported the highest body temperatures at the end of the afternoon (Souissi, Chtourou, Hdidar et al 2013;Souissi, Chtourou, Zrane et al 2012;Souissi, Chtourou, Chaouachi, Dogui et al 2012;Hammouda et al 2011;. Therefore, in agreement with the relevant literature, the present results showed that the rhythms of cognitive performance were not in phase with the rhythm of core temperature during all experimental conditions (i.e.…”

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confidence: 93%

Effect of time of day and partial sleep deprivation on the reaction time and the attentional capacities of the handball goalkeeper

Jarraya

Chtourou

et al. 2013

Biological Rhythm Research

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The aim of this study was to investigate the effects of the time of day and partial sleep deprivation on cognitive performances (i.e., attention and reaction time [RT]) of the handball goalkeeper (GK). The protocol involved 12 healthy GK volunteer males (age: 18.5 ± 1.7 years, level of experience: 8.3 ± 2.4 years, height: 1.80 ± 5.8 cm; body-mass: 79 ± 4.2 kg). They performed three cognitive tasks, i.e. the RT test, the Stroop test, and the barrage test, respectively, to evaluate the RT, the selective attention (SA), and the constant attention (CA) following the two situations of partial sleep deprivation, i.e. in the beginning (SDB) and the end (SDE) of the night, and a reference night which is a full night of habitual sleep. Resting oral temperature was measured at the beginning of each test session. Each of the three experimental conditions was separated by a 72-h period. The analysis of variance revealed a significant sleep deprivation Â test-time effect on the RT, the SA, and the CA. These variables decreased significantly from morning to afternoon for all three experimental conditions. It seems that the RT is more affected by SDE than SDB (p < 0.05; À41% vs. 49% after SDE and SDB, respectively); however, SA and CA are more affected by SDB than SDE (p < 0.05; 63% vs. 47% for SA and 39% vs. 29% for CA after SDB and SDE, respectively). Furthermore, the partial sleep deprivation causes a phase advance of the core temperature. In addition, cognitive performances are not in phase with the rhythm of core temperature for all three experimental conditions. In conclusion, the partial sleep deprivation negatively affect cognitive performances in the handball goalkeeper.

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confidence: 93%

Effect of time of day and partial sleep deprivation on the reaction time and the attentional capacities of the handball goalkeeper

Jarraya

Chtourou

et al. 2013

Biological Rhythm Research

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“…[18], [20]. However, the underlying mechanisms of these diurnal fluctuations are still debated [44], [45]. Some authors have hypothesized a causal link between the diurnal fluctuations of core temperature and short-term maximal performances [17], [37], [42], [46].…”

Section: Discussionmentioning

confidence: 99%

Effect of Static and Dynamic Stretching on the Diurnal Variations of Jump Performance in Soccer Players

et al. 2013

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PurposeThe present study addressed the lack of data on the effect of different types of stretching on diurnal variations in vertical jump height - i.e., squat-jump (SJ) and countermovement-jump (CMJ). We hypothesized that dynamic stretching could affect the diurnal variations of jump height by producing a greater increase in short-term maximal performance in the morning than the evening through increasing core temperature at this time-of-day.MethodsTwenty male soccer players (age, 18.6±1.3 yrs; height, 174.6±3.8 cm; body-mass, 71.1±8.6 kg; mean ± SD) completed the SJ and CMJ tests either after static stretching, dynamic stretching or no-stretching protocols at two times of day, 07:00 h and 17:00 h, with a minimum of 48 hours between testing sessions. One minute after warming-up for 5 minutes by light jogging and performing one of the three stretching protocols (i.e., static stretching, dynamic stretching or no-stretching) for 8 minutes, each subject completed the SJ and CMJ tests. Jumping heights were recorded and analyzed using a two-way analysis of variance with repeated measures (3 [stretching]×2 [time-of-day]).ResultsThe SJ and CMJ heights were significantly higher at 17:00 than 07:00 h (p<0.01) after the no-stretching protocol. These daily variations disappeared (i.e., the diurnal gain decreased from 4.2±2.81% (p<0.01) to 1.81±4.39% (not-significant) for SJ and from 3.99±3.43% (p<0.01) to 1.51±3.83% (not-significant) for CMJ) after dynamic stretching due to greater increases in SJ and CMJ heights in the morning than the evening (8.4±6.36% vs. 4.4±2.64%, p<0.05 for SJ and 10.61±5.49% vs. 6.03±3.14%, p<0.05 for CMJ). However, no significant effect of static stretching on the diurnal variations of SJ and CMJ heights was observed.ConclusionDynamic stretching affects the typical diurnal variations of SJ and CMJ and helps to counteract the lower morning values in vertical jump height.

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“…During the week preceding the start of the experiment, participants were familiarized with testing procedures Aloui, Chtourou, Masmoudi et al 2012;Souissi, Chtourou, Zrane et al 2012). Also, body mass was measured using a digital scale (Tanita, Tokyo, Japan; precision: 100 g).…”

Section: Methodsmentioning

confidence: 99%

The effect of time-of-day and judo match on short-term maximal performances in judokas

Chtourou

Aloui

Chaouachi

et al. 2013

Biological Rhythm Research

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Effect of time-of-day of aerobic maximal exercise on the sleep quality of trained subjects

Cited by 42 publications

References 32 publications

Effect of time of day and partial sleep deprivation on the reaction time and the attentional capacities of the handball goalkeeper

Effect of time of day and partial sleep deprivation on the reaction time and the attentional capacities of the handball goalkeeper

Effect of Static and Dynamic Stretching on the Diurnal Variations of Jump Performance in Soccer Players

The effect of time-of-day and judo match on short-term maximal performances in judokas

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