Effect of acute melatonin administration on physiological response to prolonged exercise

Souissi, Amine; Yousfi, Narimen; Dabboubi, Rim; Aloui, Ghaith; Haddad, Monoem; Souissi, Nizar

doi:10.1080/09291016.2019.1573462

Cited by 8 publications

(19 citation statements)

References 22 publications

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“…Furthermore, Deligiannis et al (1993) identified that TSH increased by 90.4% after swimming at 20°C, remained unchanged at 26°C, and then declined at 32°C ( Deligiannis et al, 1993 ). In fact, it has been reported that when exposed to cold, metabolic rates increase, whereas when exposed to heat and/or during exercise-induced hyperthermia ( Febbraio et al, 1996 ; Souissi et al, 2019 , 2021 ), metabolic rates drop ( Dempsey & Astwood, 1943 ; Febbraio, 2001 ; Febbraio et al, 1996 ). Thyroid hormones stimulate sympathetic nerves that innervate brown adipose tissue to produce metabolic heat and act on skeletal muscle to produce heat ( Cannon & Nedergaard, 2010 ).…”

Section: Discussionmentioning

confidence: 99%

“…However, the relation between melatonin, exercise, and TSH in the morning is not yet well established. Melatonin ( N -acetyl-5-methoxytryptamine), which is the pineal gland’s primary product, regulates circadian rhythm, sleep, and sexual behavior ( Dergaa, Varma, et al, 2021 ; Pandi-Perumal et al, 2008 ; Souissi et al, 2019 ). Melatonin is known to have antioxidant and anti-inflammatory effects ( Escames et al, 2012 ; Kruk et al, 2021 ; Souissi et al, 2018 , 2019 ; Watson et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

“…Melatonin ( N -acetyl-5-methoxytryptamine), which is the pineal gland’s primary product, regulates circadian rhythm, sleep, and sexual behavior ( Dergaa, Varma, et al, 2021 ; Pandi-Perumal et al, 2008 ; Souissi et al, 2019 ). Melatonin is known to have antioxidant and anti-inflammatory effects ( Escames et al, 2012 ; Kruk et al, 2021 ; Souissi et al, 2018 , 2019 ; Watson et al, 2016 ). Several researchers have looked into the effects of melatonin on endurance exercise ( Alonso et al, 2006 ; Maldonado et al, 2012 ; Souissi et al, 2018 , 2019 ; Veneroso et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

“…Melatonin is known to have antioxidant and anti-inflammatory effects ( Escames et al, 2012 ; Kruk et al, 2021 ; Souissi et al, 2018 , 2019 ; Watson et al, 2016 ). Several researchers have looked into the effects of melatonin on endurance exercise ( Alonso et al, 2006 ; Maldonado et al, 2012 ; Souissi et al, 2018 , 2019 ; Veneroso et al, 2009 ). A single dose of exogenous melatonin, given before submaximal exercise, was reported to reduce oxidative stress, inflammation, and muscle damage ( Alonso et al, 2006 ; Kruk et al, 2021 ; Maldonado et al, 2012 ; Veneroso et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Daytime Ingestion of Melatonin on Thyroid Hormones Responses to Acute Submaximal Exercise in Healthy Active Males: A Pilot Study

et al. 2022

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It is well known that exercise increases the activity of thyroid glands and raises the blood level of melatonin. The increase of melatonin during exercise may be linked to a rise in thyroid-stimulating hormone (TSH). No previous study has investigated the combined effects of melatonin ingestion and acute submaximal exercise on thyroid hormones’ responses. The purpose of this pilot study was to explore the effects of daytime ingestion of melatonin on thyroid hormones’ responses to acute submaximal exercise. After 50 min of either melatonin (6 mg) or placebo ingestion, eight physical education students (mean ± standard deviation of age: 22 ± 1 years) were asked to run for 45 min at 60% of their maximum aerobic speed. Free thyroxine (fT4) and TSH were measured in plasma samples before and immediately after exercise. After submaximal exercise, TSH increased by 54% in both placebo and melatonin conditions. There was no significant (Condition × Exercise) interaction, and no significant condition effect for TSH. The fT4 remained unchanged before/after submaximal exercise in both placebo [15.2 (1.9) and 15.0 (1.6) pmol/L, respectively, p > .05], and melatonin [16.7 (2.7) and 16.3 (2.7) pmol/L, respectively, p > .05] conditions. There was no significant (Condition × Exercise) interaction, no significant exercise effect, and no significant condition effect for fT4. To conclude, acute melatonin ingestion did not affect thyroid hormones’ responses to submaximal exercise.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Daytime Ingestion of Melatonin on Thyroid Hormones Responses to Acute Submaximal Exercise in Healthy Active Males: A Pilot Study

et al. 2022

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“…In addition, sessions were conducted far from the full moon to avoid the effect of circa-lunar variation on the measured biological data ( Dergaa et al, 2019 , 2021 ). All physical tests were performed in normothermia ( Souissi et al, 2019 ) at a temperature of 23 ± 2°C and a relative humidity of 62 ± 4%. During the baseline week preceding the study, the participants were instructed to keep their usual bed and wake-time within a self-selected range of 8 hr of nocturnal sleep.…”

Section: Participants and Methodsmentioning

confidence: 99%

Biological Responses to Short-Term Maximal Exercise in Male Police Officers

Dergaa¹,

Saad

Romdhani³

et al. 2021

Am J Mens Health

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The specifics of short-term physical exercise are similar to the immediate reaction demands placed on police officers. Identifying the physiological predisposition to short-term high-intensity exercise in male law enforcement officers will assist in understanding their metabolism and make a significant contribution to a much more personal and individualized workout program. This will improve physical fitness of individual officers, improving their preparedness for such times of emergency. This cross-sectional study was conducted to investigate the responses of hematological (erythrocytes, hemoglobin, hematocrit, leucocytes, monocytes, neutrophils, lymphocytes), hormonal (testosterone, cortisol, melatonin), biochemical (glucose, uric-acid, lactate, creatine-phosphokinase) data to short-term maximal exercise in male police officers ( n = 20). Blood samples were collected before- and after- the running-based anaerobic sprint test (RAST), and biological values were corrected for fluid shifts. Data were mean ± standard deviation of differences (= after minus before RAST). After the RAST, values of cortisol, lactate, neutrophils, lymphocytes, and monocytes increased significantly by 7.01 ± 37.36 mmol/l, 7.55 ± 1.67 mmol/l, 0.17 ± 0.26 103/µl, 0.61 ± 0.28 103/µl, and 0.10 ± 0.13 103/µl, respectively. After the RAST, values of melatonin, uric-acid, creatine-phosphokinase, hemoglobin, and hematocrit decreased significantly by −13.24 ± 4.60 pg/ml, −13.28 ± 14.35 µmol/l, −10.23 ± 10.13 IU/l, −2.01 ± 0.81 g/dl, and −4.46 ± 0.59%, respectively. Biological data of male police officers were affected by sprint test. Understanding changes in biological data following short-term maximal exercise can further assist in a better understanding of anaerobic metabolism, which will be helpful to find available methods for coaches to quantify training loads.

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The effect of Ramadan fasting on the morning–evening difference in team-handball-related short-term maximal physical performances in elite female team-handball players

Mhenni

Souissi

Tayech

et al. 2021

Chronobiology International

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Effect of acute melatonin administration on physiological response to prolonged exercise

Cited by 8 publications

References 22 publications

The Effect of Daytime Ingestion of Melatonin on Thyroid Hormones Responses to Acute Submaximal Exercise in Healthy Active Males: A Pilot Study

The Effect of Daytime Ingestion of Melatonin on Thyroid Hormones Responses to Acute Submaximal Exercise in Healthy Active Males: A Pilot Study

Biological Responses to Short-Term Maximal Exercise in Male Police Officers

The effect of Ramadan fasting on the morning–evening difference in team-handball-related short-term maximal physical performances in elite female team-handball players

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