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Berisha G, Sedliak M, Zeman M, Hamar D, Cvečka J, Tirpáková V, Vajda M, Oreská Ľ, Černáčková A, Čupka M, Šarabon N, Protasi F, Zampieri S, Kern H, Lofler S, Musaro A, Stebelová K, Okuliarová M. Can lifelong endurance exercise improve ageing through beneficial effects on circadian timing function, muscular performance and health status in men? Protocol for a comparative cross-sectional study. Eur J Transl Myol 2023; 33:10.4081/ejtm.2023. 12012. [PMID: 38058287 PMCID: PMC10811640 DOI: 10.4081/ejtm.2023.12012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 11/21/2023] [Indexed: 12/08/2023] Open
Abstract
A well-synchronized circadian system is a manifestation of an individual's health. A gradual weakening of the circadian timing function characterizes aging. Regular exercise has been suggested as a modality to improve many detrimental changes associated with aging. Therefore, we aim to examine the benefits and risks of lifelong endurance exercise on age-dependent changes in the circadian time-keeping function, the performance of the muscular system and health status. The study protocol has a comparative cross-sectional design, including groups of senior (65 to 75 years old, n=16) and young (20-30 years old, n=16) endurance runners and triathletes. Age-matched groups of young and elderly sedentary men are included as controls. The circadian function is evaluated mainly by measurement of urinary 6-sulphatoxymelatonin, a metabolite of the hormone melatonin shown to participate in the modulation of sleep cycles. The 6-sulphatoxymelatonin will be assessed in urine samples collected upon awakening in the morning and in the late evening, as a marker of melatonin production. In addition, sleep/activity rhythms and sleep quality will be measured by wrist actigraphy. Performance of the muscular system will be assessed by examination of muscular strength and quantifying of gene expression in the skeletal muscle tissue samples. Health status and age-induced reduction in immune function are to be analysed via the balance of pro- and anti-inflammatory immune markers in the plasma and skeletal muscle, body composition, bone density and physical fitness.
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Affiliation(s)
- Genc Berisha
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Department of Biological and Medical Sciences.
| | - Milan Sedliak
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Department of Biological and Medical Sciences.
| | - Michal Zeman
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Animal Physiology and Ethology.
| | - Dušan Hamar
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Department of Biological and Medical Sciences.
| | - Ján Cvečka
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Professor Hamar Diagnostic Centre.
| | - Veronika Tirpáková
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Professor Hamar Diagnostic Centre.
| | - Matej Vajda
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Professor Hamar Diagnostic Centre.
| | - Ľudmila Oreská
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Department of Biological and Medical Sciences.
| | - Alena Černáčková
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Department of Biological and Medical Sciences.
| | - Martin Čupka
- Comenius University in Bratislava, Faculty of Physical Education and Sport, Department of Biological and Medical Sciences.
| | - Nejc Šarabon
- University of Primorska, Faculty of Health Sciences.
| | - Feliciano Protasi
- Gabriele d'Annunzio University of Chieti and Pescara, Center for Advanced Studies and Technology, Department of Medicine and Aging Sciences.
| | - Sandra Zampieri
- University of Padova, Department of Surgery, Oncology and Gastroenterology, Department of Biomedical Sciences.
| | - Helmut Kern
- Ludwig Boltzmann Institute for Rehabilitation Research, St. Pölten, Austria and 2. Physiko- und Rheumatherapie.
| | - Stefan Lofler
- Ludwig Boltzmann Institute for Rehabilitation Research, St. Pölten, Austria and 2. Physiko- und Rheumatherapie.
| | - Antonio Musaro
- University of Rome La Sapienza, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, Scuola Superiore di Studi Avanzati Sapienza.
| | - Katarína Stebelová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Animal Physiology and Ethology.
| | - Monika Okuliarová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Animal Physiology and Ethology.
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Bruggisser F, Knaier R, Roth R, Wang W, Qian J, Scheer FAJL. Best Time of Day for Strength and Endurance Training to Improve Health and Performance? A Systematic Review with Meta-analysis. SPORTS MEDICINE - OPEN 2023; 9:34. [PMID: 37208462 DOI: 10.1186/s40798-023-00577-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 04/30/2023] [Indexed: 05/21/2023]
Abstract
BACKGROUND Current recommendations for physical exercise include information about the frequency, intensity, type, and duration of exercise. However, to date, there are no recommendations on what time of day one should exercise. The aim was to perform a systematic review with meta-analysis to investigate if the time of day of exercise training in intervention studies influences the degree of improvements in physical performance or health-related outcomes. METHODS The databases EMBASE, PubMed, Cochrane Library, and SPORTDiscus were searched from inception to January 2023. Eligibility criteria were that the studies conducted structured endurance and/or strength training with a minimum of two exercise sessions per week for at least 2 weeks and compared exercise training between at least two different times of the day using a randomized crossover or parallel group design. RESULTS From 14,125 screened articles, 26 articles were included in the systematic review of which seven were also included in the meta-analyses. Both the qualitative synthesis and the quantitative synthesis (i.e., meta-analysis) provide little evidence for or against the hypothesis that training at a specific time of day leads to more improvements in performance-related or health-related outcomes compared to other times. There was some evidence that there is a benefit when training and testing occur at the same time of day, mainly for performance-related outcomes. Overall, the risk of bias in most studies was high. CONCLUSIONS The current state of research provides evidence neither for nor against a specific time of the day being more beneficial, but provides evidence for larger effects when there is congruency between training and testing times. This review provides recommendations to improve the design and execution of future studies on this topic. REGISTRATION PROSPERO (CRD42021246468).
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Affiliation(s)
- Fabienne Bruggisser
- Department of Sport, Exercise and Health, Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Raphael Knaier
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA.
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Department of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, USA.
| | - Ralf Roth
- Department of Sport, Exercise and Health, Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Wei Wang
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Division of Sleep and Circadian Disorders, Department of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, USA
| | - Jingyi Qian
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Department of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, USA
| | - Frank A J L Scheer
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA.
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Department of Medicine and Neurology, Brigham and Women's Hospital, Boston, MA, USA.
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3
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Chang SW, Yoshihara T, Tsuzuki T, Natsume T, Kakigi R, Machida S, Naito H. Circadian rhythms modulate the effect of eccentric exercise on rat soleus muscles. PLoS One 2022; 17:e0264171. [PMID: 35213577 PMCID: PMC8880858 DOI: 10.1371/journal.pone.0264171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 02/04/2022] [Indexed: 11/23/2022] Open
Abstract
We investigated whether time-of-day dependent changes in the rat soleus (SOL) muscle size, after eccentric exercises, operate via the mechanistic target of rapamycin (mTOR) signaling pathway. For our first experiment, we assigned 9-week-old male Wistar rats randomly into four groups: light phase (zeitgeber time; ZT6) non-trained control, dark phase (ZT18) non-trained control, light phase-trained, and dark phase-trained. Trained animals performed 90 min of downhill running once every 3 d for 8 weeks. The second experiment involved dividing 9-week-old male Wistar rats to control and exercise groups. The latter were subjected to 15 min of downhill running at ZT6 and ZT18. The absolute (+12.8%) and relative (+9.4%) SOL muscle weights were higher in the light phase-trained group. p70S6K phosphorylation ratio was 42.6% higher in the SOL muscle of rats that had exercised only in light (non-trained ZT6). Collectively, the degree of muscle hypertrophy in SOL is time-of-day dependent, perhaps via the mTOR/p70S6K signaling.
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Affiliation(s)
- Shuo-wen Chang
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
- Department of Physical Education, National University of Tainan, Tainan, Taiwan
| | - Toshinori Yoshihara
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Takamasa Tsuzuki
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
- Faculty of Pharmacy, Meijo University, Nagoya, Aichi, Japan
| | - Toshiharu Natsume
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
- School of Medicine, Tokai University, Hiratsuka, Kanagawa, Japan
| | - Ryo Kakigi
- Faculty of Management & Information Sciences, Josai International University, Chiba, Japan
| | - Shuichi Machida
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Hisashi Naito
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
- * E-mail:
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Ferchichi S, Taktak Y, Ferchichi S, Taktak H, Souissi N. Effect of time-of-day on freestyle flip turn performance: influence on 50 m event. BIOL RHYTHM RES 2021. [DOI: 10.1080/09291016.2021.1963530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Salah Ferchichi
- Department of Physiology and Lung Function Testing, Sousse Faculty of Medicine, University of Center, Sousse, Tunisia
- Department of sports and physical activities, High Institute of Sport and Physical Education, Ksar-Said, Manouba University, Manouba, Tunisia
| | - Yana Taktak
- Department of sports and physical activities, High Institute of Sport and Physical Education, Kef, Jendouba University, Kef, Tunisia
| | - Seifeddine Ferchichi
- Department of sports and physical activities, High Institute of Sport and Physical Education, Ksar-Said, Manouba University, Manouba, Tunisia
| | - Heni Taktak
- Department of sports and physical activities, High Institute of Sport and Physical Education, Ksar-Said, Manouba University, Manouba, Tunisia
| | - Nizar Souissi
- Scientific department of sports sciences, Research Laboratory “Sport Performance Optimization” National Center of Medicine and Sciences in Sports (CNMSS), Tunis, Tunisia
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Li M, Li X, Cao L, Li R, Wang X, Yao L, Yan P, Li Y, Chu X, Li H, Han X, Xin T, Chen K, White H, Yang K. PROTOCOL
: Examining the best time of day for exercise: A systematic review and network meta‐analysis. CAMPBELL SYSTEMATIC REVIEWS 2021; 17:e1144. [PMID: 37051170 PMCID: PMC8356310 DOI: 10.1002/cl2.1144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Meixuan Li
- Evidence‐Based Medicine Center, School of Basic Medical Sciences Lanzhou University Lanzhou China
| | - Xiuxia Li
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | - Liujiao Cao
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | - Rui Li
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | - Xiaoqin Wang
- The Michael G. DeGroote Institute for Pain Research and Care McMaster University Hamilton Canada
| | - Liang Yao
- Department of Health Research Methodology, Evidence and Impact McMaster University Hamilton Canada
| | - Peijing Yan
- Department of Clinical Research Management, West China Hospital Sichuan University Chengdu China
| | - Yanfei Li
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | - Xiajing Chu
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | - Huijuan Li
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | - Xue Han
- The First School of Clinical Medicine Lanzhou University Lanzhou China
| | - Tianjiao Xin
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | - Kaiyue Chen
- Evidence‐Based Social Science Research Center, School of Public Health Lanzhou University Lanzhou China
| | | | - Kehu Yang
- Evidence‐Based Medicine Center, School of Basic Medical Sciences Lanzhou University Lanzhou China
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Pivovarniček P, Kondrátová D, Jančoková Ľ, Malý T, Hank M, Hrásky P, Malá L, Zahálka F. Effect of diurnal aerobic intervention on indicators of body composition of young women. BIOL RHYTHM RES 2021. [DOI: 10.1080/09291016.2019.1586101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Pavol Pivovarniček
- Department of Physical Education and Sports, Faculty of Arts, Matej Bel University, Banská Bystrica, Slovak Republic
| | - Dominika Kondrátová
- Department of Physical Education and Sports, Faculty of Arts, Matej Bel University, Banská Bystrica, Slovak Republic
| | - Ľudmila Jančoková
- Department of Physical Education and Sports, Faculty of Arts, Matej Bel University, Banská Bystrica, Slovak Republic
| | - Tomáš Malý
- Human Movement Laboratory, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic
| | - Mikuláš Hank
- Human Movement Laboratory, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic
| | - Pavel Hrásky
- Human Movement Laboratory, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic
| | - Lucia Malá
- Human Movement Laboratory, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic
| | - František Zahálka
- Human Movement Laboratory, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic
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Diniz RCR, Tourino FD, Lacerda LT, Martins-Costa HC, Lanza MB, Lima FV, Chagas MH. Does the Muscle Action Duration Induce Different Regional Muscle Hypertrophy in Matched Resistance Training Protocols? J Strength Cond Res 2020; 36:2371-2380. [DOI: 10.1519/jsc.0000000000003883] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mirizio GG, Nunes RSM, Vargas DA, Foster C, Vieira E. Time-of-Day Effects on Short-Duration Maximal Exercise Performance. Sci Rep 2020; 10:9485. [PMID: 32528038 PMCID: PMC7289891 DOI: 10.1038/s41598-020-66342-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 04/29/2020] [Indexed: 01/22/2023] Open
Abstract
Time-of-day dependent fluctuations in exercise performance have been documented across different sports and seem to affect both endurance and resistance modes of exercise. Most of the studies published to date have shown that the performance in short-duration maximal exercises (i.e. less than 1 min - e.g. sprints, jumps, isometric contractions) exhibits diurnal fluctuations, peaking between 16:00 and 20:00 h. However, the time-of-day effects on short duration exercise performance may be minimized by the following factors: (1) short exposures to moderately warm and humid environments; (2) active warm-up protocols; (3) intermittent fasting conditions; (4) warming-up while listening to music; or (5) prolonged periods of training at a specific time of day. This suggests that short-duration maximal exercise performance throughout the day is controlled not only by body temperature, hormone levels, motivation and mood state but also by a versatile circadian system within skeletal muscle. The time of day at which short-duration maximal exercise is conducted represents an important variable for training prescription. However, the literature available to date lacks a specific review on this subject. Therefore, the present review aims to (1) elucidate time-of-day specific effects on short-duration maximal exercise performance and (2) discuss strategies to promote better performance in short-duration maximal exercises at different times of the day.
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Affiliation(s)
- Gerardo Gabriel Mirizio
- Muscle Cell Physiology Laboratory, Center of Molecular Studies of the Cell, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | | | - Douglas Araujo Vargas
- Graduate Program on Physical Education, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Carl Foster
- University of Wisconsin - La Crosse, Department of Exercise and Sport Science, La Crosse, USA
| | - Elaine Vieira
- Postgraduate Program on Physical Education, Universidade Católica de Brasília, Brasília, DF, Brazil.
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Re-Setting the Circadian Clock Using Exercise against Sarcopenia. Int J Mol Sci 2020; 21:ijms21093106. [PMID: 32354038 PMCID: PMC7247148 DOI: 10.3390/ijms21093106] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 04/25/2020] [Accepted: 04/26/2020] [Indexed: 12/14/2022] Open
Abstract
Sarcopenia is defined as the involuntary loss of skeletal muscle mass and function with aging and is associated with several adverse health outcomes. Recently, the disruption of regular circadian rhythms, due to shift work or nocturnal lifestyle, is emerging as a novel deleterious factor for the development of sarcopenia. The underlying mechanisms responsible for circadian disruption-induced sarcopenia include molecular circadian clock and mitochondrial function associated with the regulation of circadian rhythms. Exercise is a potent modulator of skeletal muscle metabolism and is considered to be a crucial preventative and therapeutic intervention strategy for sarcopenia. Moreover, emerging evidence shows that exercise, acting as a zeitgeber (time cue) of the skeletal muscle clock, can be an efficacious tool for re-setting the clock in sarcopenia. In this review, we provide the evidence of the impact of circadian disruption on skeletal muscle loss resulting in sarcopenia. Furthermore, we highlight the importance of exercise timing (i.e., scheduled physical activity) as a novel therapeutic strategy to target circadian disruption in skeletal muscle.
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Aoyama S, Shibata S. Time-of-Day-Dependent Physiological Responses to Meal and Exercise. Front Nutr 2020; 7:18. [PMID: 32181258 PMCID: PMC7059348 DOI: 10.3389/fnut.2020.00018] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 02/13/2020] [Indexed: 12/26/2022] Open
Abstract
The mammalian circadian clock drives the temporal coordination in cellular homeostasis and it leads the day-night fluctuation of physiological functions, such as sleep/wake cycle, hormonal secretion, and body temperature. The mammalian circadian clock system in the body is classified hierarchically into two classes, the central clock in the suprachiasmatic nucleus (SCN) of the hypothalamus and the peripheral clocks in peripheral tissues such as the intestine and liver, as well as other brain areas outside the SCN. The circadian rhythm of various tissue-specific functions is mainly controlled by each peripheral clock and partially by the central clock as well. The digestive, absorptive, and metabolic capacities of nutrients also show the day-night variations in several peripheral tissues such as small intestine and liver. It is therefore indicated that the bioavailability or metabolic capacity of nutrients depends on the time of day. In fact, the postprandial response of blood triacylglycerol to a specific diet and glucose tolerance exhibit clear time-of-day effects. Meal frequency and distribution within a day are highly related to metabolic functions, and optimal time-restricted feeding has the potential to prevent several metabolic dysfunctions. In this review, we summarize the time-of-day-dependent postprandial response of macronutrients to each meal and the involvement of circadian clock system in the time-of-day effect. Furthermore, the chronic beneficial and adverse effects of meal time and eating pattern on metabolism and its related diseases are discussed. Finally, we discuss the timing-dependent effects of exercise on the day-night variation of exercise performance and therapeutic potential of time-controlled-exercise for promoting general health.
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Affiliation(s)
- Shinya Aoyama
- Graduate School of Biomedical Science, Nagasaki University, Nagasaki, Japan
| | - Shigenobu Shibata
- Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
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Grgic J, Lazinica B, Garofolini A, Schoenfeld BJ, Saner NJ, Mikulic P. The effects of time of day-specific resistance training on adaptations in skeletal muscle hypertrophy and muscle strength: A systematic review and meta-analysis. Chronobiol Int 2019; 36:449-460. [PMID: 30704301 DOI: 10.1080/07420528.2019.1567524] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The present paper endeavored to elucidate the topic on the effects of morning versus evening resistance training on muscle strength and hypertrophy by conducting a systematic review and a meta-analysis of studies that examined time of day-specific resistance training. This systematic review was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines with searches conducted through PubMed/MEDLINE, Scopus, and SPORTDiscus databases. The Downs and Black checklist was used for the assessment of the methodological quality of the included studies. Studies that examined the effects of time of day-specific resistance training (while equating all other training variables, such as training frequency and volume, between the groups) on muscle strength and/or muscle size were included in the present review. The random effects model was used for the meta-analysis. Meta-analyses explored (1) the differences in strength expression between morning and evening hours at baseline; (2) the differences in strength within the groups training in the morning and evening by using their post-intervention strength data from the morning and evening strength assessments; (3) the overall differences between the effects of morning and evening resistance training (with subgroup analyses conducted for studies that assessed strength in the morning hours and for the studies that assessed strength in the evening hours). Finally, a meta-analysis was also conducted for studies that assessed muscle hypertrophy. Eleven studies of moderate and good methodological quality were included in the present review. The primary findings of the review are as follows: (1) at baseline, a significant difference in strength between morning and evening is evident, with greater strength observed in the evening hours; (2) resistance training in the morning hours may increase strength assessed in the morning to similar levels as strength assessed in the evening; (3) training in the evening hours, however, maintains the general difference in strength across the day, with greater strength observed in the evening hours; (4) when comparing the effects between the groups training in the morning versus in the evening hours, increases in strength are similar in both groups, regardless of the time of day at which strength assessment is conducted; and (5) increases in muscle size are similar irrespective of the time of day at which the training is performed.
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Affiliation(s)
- Jozo Grgic
- a Institute for Health and Sport (IHES) , Victoria University , Melbourne , Australia
| | - Bruno Lazinica
- b Faculty of Education, Department of Kinesiology , J.J. Strossmayer University , Osijek , Croatia
| | - Alessandro Garofolini
- a Institute for Health and Sport (IHES) , Victoria University , Melbourne , Australia
| | | | - Nicholas J Saner
- a Institute for Health and Sport (IHES) , Victoria University , Melbourne , Australia
| | - Pavle Mikulic
- d Faculty of Kinesiology , University of Zagreb , Zagreb , Croatia
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Krčmárová B, Krčmár M, Schwarzová M, Chlebo P, Chlebová Z, Židek R, Kolesárová A, Zbyňovská K, Kováčiková E, Walker S. The effects of 12-week progressive strength training on strength, functional capacity, metabolic biomarkers, and serum hormone concentrations in healthy older women: morning versus evening training. Chronobiol Int 2018; 35:1490-1502. [PMID: 29985671 DOI: 10.1080/07420528.2018.1493490] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Previous findings suggest that performing strength training (ST) in the evening may provide greater benefit for young individuals. However, this may not be optimal for the older population. The purpose of this study was to compare the effects of a 12-week ST program performed in the morning vs. evening on strength, functional capacity, metabolic biomarker and basal hormone concentrations in older women. Thirty-one healthy older women (66 ± 4 years, 162 ± 4 cm, 75 ± 13 kg) completed the study. Participants trained in the morning (M) (07:30, n = 10), in the evening (E) (18:00, n = 10), or acted as a non-training control group (C) (n = 11). Both intervention groups performed whole-body strength training with 3 sets of 10-12 repetitions with 2-3 minutes rest between sets. All groups were measured before and after the 12-week period with; dynamic leg press and seated-row 6-repetition maximum (6-RM) and functional capacity tests (30-second chair stands and arm curl test, Timed Up and Go), as well as whole-body skeletal muscle mass (SMM) (kg) and fat mass (FM-kg, FM%) assessed by bioelectrical impedance (BIA). Basal blood samples (in the intervention groups only) taken before and after the intervention assessed low-density lipoprotein (LDL-C), high-density lipoprotein (HDL-C), blood glucose (GLU), triglycerides (TG), high-sensitive C-reactive protein (hsCRP) concentrations and total antioxidant status (TAS) after a 12 h fast. Hormone analysis included prolactin (PRL), progesterone (P) estradiol (ESTR), testosterone (T), follicle stimulating hormone (FSH), and luteinizing hormone (LH). While C showed no changes in any variable, both M and E significantly improved leg press (+ 46 ± 22% and + 21 ± 12%, respectively; p < 0.001) and seated-row (+ 48 ± 21% and + 42 ± 18%, respectively; p < 0.001) 6-RM, as well as all functional capacity outcomes (p < 0.01) due to training. M were the only group to increase muscle mass (+ 3 ± 2%, p < 0.01). Both M and E group significantly (p < 0.05) decreased GLU (-4 ± 6% and -8 ± 10%, respectively), whereas significantly greater decrease was observed in the E compared to the M group (p < 0.05). Only E group significantly decreased TG (-17 ± 25%, p < 0.01), whereas M group increased (+ 15%, p < 0.01). The difference in TG between the groups favored E compared to M group (p < 0.01). These results suggest that short-term "hypertrophic" ST alone mainly improves strength and functional capacity performance, but it influences metabolic and hormonal profile of healthy older women to a lesser extent. In this group of previously untrained older women, time-of-day did not have a major effect on outcome variables, but some evidence suggests that training in the morning may be more beneficial for muscle hypertrophy (i.e. only M significantly increased muscle mass and had larger effect size (M: g = 2 vs. E: g = 0.5).
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Affiliation(s)
- Bohumila Krčmárová
- a Department of Physical Education and Sports , Constantine the Philosopher University , Nitra , Slovakia
| | - Matúš Krčmár
- b Hamar Institute for Human Performance, Faculty of Physical Education and Sport , Comenius University , Bratislava , Slovakia
| | - Marianna Schwarzová
- c Department of Human Nutrition, Faculty of Agrobiology and Food Resources , Slovak University of Agriculture in Nitra , Nitra , Slovakia
| | - Peter Chlebo
- c Department of Human Nutrition, Faculty of Agrobiology and Food Resources , Slovak University of Agriculture in Nitra , Nitra , Slovakia
| | - Zuzana Chlebová
- c Department of Human Nutrition, Faculty of Agrobiology and Food Resources , Slovak University of Agriculture in Nitra , Nitra , Slovakia
| | - Radoslav Židek
- d Department of Food Hygiene and Safety, Faculty of Agrobiology and Food Resources , Slovak University of Agriculture in Nitra , Nitra , Slovakia
| | - Adriana Kolesárová
- e Department of Animal Physiology, Faculty of Biotechnology and Food Sciences , Slovak University of Agriculture in Nitra , Nitra , Slovakia
| | - Katarína Zbyňovská
- e Department of Animal Physiology, Faculty of Biotechnology and Food Sciences , Slovak University of Agriculture in Nitra , Nitra , Slovakia
| | - Eva Kováčiková
- f AgroBioTech Research Centre , Slovak University of Agriculture in Nitra , Nitra , Slovakia
| | - Simon Walker
- g Biology of Physical Activity, Neuromuscular Research Center, Faculty of Sport and Health Sciences , University of Jyväskylä , Jyväskylä , Finland
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Ocampo NV, Ramírez-Villada JF. El efecto de los programas de fuerza muscular sobre la capacidad funcional. Revisión sistemática. REVISTA DE LA FACULTAD DE MEDICINA 2018. [DOI: 10.15446/revfacmed.v66n3.62336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introducción. El número de estudios relacionados con la fuerza muscular y la funcionalidad invitan al análisis en profundidad de sus resultados antes de su aplicación profesional.Objetivo. Desarrollar una revisión sistemática para la construcción de programas de actividad física centrados en el entrenamiento de fuerza muscular y la capacidad funcional de sedentarios entre los 19 y 79 años.Materiales y métodos. Se emplearon los parámetros PRISMA, Chocrane y de la Universidad de York para el diseño y ejecución de revisiones sistemáticas. Además, se garantizaron criterios de calidad y especificidad estrictos que permitieron identificar 14 categorías de análisis, de las cuales emergieron las pautas de programación que se informan en la revisión sistemática.Resultados. 49 estudios con nivel de evidencia 1+ (24%), 1- (33%), 2++ (4%), 2+ (29%) y 2- (10%) cumplieron con los criterios de selección establecidos y permitieron alimentar las 14 categorías propuestas y hacer una síntesis de contenido.Conclusión. Es posible elevar el efecto de los programas de actividad física sobre la fuerza muscular y la funcionalidad a partir de la identificación y consideración de unas variables de programación (categoría) básicas que se sustentan en la calidad de evidencia científica circulante.
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Camera DM. Anabolic Heterogeneity Following Resistance Training: A Role for Circadian Rhythm? Front Physiol 2018; 9:569. [PMID: 29875682 PMCID: PMC5974096 DOI: 10.3389/fphys.2018.00569] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/30/2018] [Indexed: 02/05/2023] Open
Abstract
It is now well established that resistance exercise stimulates muscle protein synthesis and promotes gains in muscle mass and strength. However, considerable variability exists following standardized resistance training programs in the magnitude of muscle cross-sectional area and strength responses from one individual to another. Several studies have recently posited that alterations in satellite cell population, myogenic gene expression and microRNAs may contribute to individual variability in anabolic adaptation. One emerging factor that may also explain the variability in responses to resistance exercise is circadian rhythms and underlying molecular clock signals. The molecular clock is found in most cells within the body, including skeletal muscle, and principally functions to optimize the timing of specific cellular events around a 24 h cycle. Accumulating evidence investigating the skeletal muscle molecular clock indicates that exercise-induced contraction and its timing may regulate gene expression and protein synthesis responses which, over time, can influence and modulate key physiological responses such as muscle hypertrophy and increased strength. Therefore, the circadian clock may play a key role in the heterogeneous anabolic responses with resistance exercise. The central aim of this Hypothesis and Theory is to discuss and propose the potential interplay between the circadian molecular clock and established molecular mechanisms mediating muscle anabolic responses with resistance training. This article begins with a current review of the mechanisms associated with the heterogeneity in muscle anabolism with resistance training before introducing the molecular pathways regulating circadian function in skeletal muscle. Recent work showing members of the core molecular clock system can regulate myogenic and translational signaling pathways is also discussed, forming the basis for a possible role of the circadian clock in the variable anabolic responses with resistance exercise.
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Affiliation(s)
- Donny M Camera
- Exercise and Nutrition Research Program, Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, VIC, Australia
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Sedliak M, Zeman M, Buzgó G, Cvecka J, Hamar D, Laczo E, Okuliarova M, Vanderka M, Kampmiller T, Häkkinen K, Ahtiainen JP, Hulmi JJ, Nilsen TS, Wiig H, Raastad T. Morphological, molecular and hormonal adaptations to early morning versus afternoon resistance training. Chronobiol Int 2017; 35:450-464. [PMID: 29283292 DOI: 10.1080/07420528.2017.1411360] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
It has been clearly established that maximal force and power is lower in the morning compared to noon or afternoon hours. This morning neuromuscular deficit can be diminished by regularly training in the morning hours. However, there is limited and contradictory information upon hypertrophic adaptations to time-of-day-specific resistance training. Moreover, no cellular or molecular mechanisms related to muscle hypertrophy adaptation have been studied with this respect. Therefore, the present study examined effects of the time-of-day-specific resistance training on muscle hypertrophy, phosphorylation of selected proteins, hormonal concentrations and neuromuscular performance. Twenty five previously untrained males were randomly divided into a morning group (n = 11, age 23 ± 2 yrs), afternoon group (n = 7, 24 ± 4 yrs) and control group (n = 7, 24 ± 3 yrs). Both the morning and afternoon group underwent hypertrophy-type of resistance training with 22 training sessions over an 11-week period performed between 07:30-08:30 h and 16:00-17:00 h, respectively. Isometric MVC was tested before and immediately after an acute loading exclusively during their training times before and after the training period. Before acute loadings, resting blood samples were drawn and analysed for plasma testosterone and cortisol. At each testing occasion, muscle biopsies from m. vastus lateralis were obtained before and 60 min after the acute loading. Muscle specimens were analysed for muscle fibre cross-sectional areas (CSA) and for phosphorylated p70S6K, rpS6, p38MAPK, Erk1/2, and eEF2. In addition, the right quadriceps femoris was scanned with MRI before and after the training period. The control group underwent the same testing, except for MRI, between 11:00 h and 13:00 h but did not train. Voluntary muscle strength increased significantly in both the morning and afternoon training group by 16.9% and 15.2 %, respectively. Also muscle hypertrophy occurred by 8.8% and 11.9% (MRI, p < 0.001) and at muscle fibre CSA level by 21% and 18% (p < 0.01) in the morning and afternoon group, respectively. No significant changes were found in controls within these parameters. Both pre- and post-training acute loadings induced a significant (p < 0.001) reduction in muscle strength in all groups, not affected by time of day or training. The post-loading phosphorylation of p70S6Thr421/Ser424 increased independent of the time of day in the pre-training condition, whereas it was significantly increased in the morning group only after the training period (p < 0.05). Phosphorylation of rpS6 and p38MAPK increased acutely both before and after training in a time-of-day independent manner (p < 0.05 at all occasions). Phosphorylation of p70S6Thr389, eEF2 and Erk1/2 did not change at any time point. No statistically significant correlations were found between changes in muscle fibre CSA, MRI and cell signalling data. Resting testosterone was not statistically different among groups at any time point. Resting cortisol declined significantly from pre- to post-training in all three groups (p < 0.05). In conclusion, similar levels of muscle strength and hypertrophy could be achieved regardless of time of the day in previously untrained men. However, at the level of skeletal muscle signalling, the extent of adaptation in some parameters may be time of day dependent.
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Affiliation(s)
- Milan Sedliak
- a Department of Sport Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Bratislava , Slovakia
| | - Michal Zeman
- b Department of Animal Physiology and Ethology, Faculty of Natural Sciences , Comenius University in Bratislava , Bratislava , Slovakia
| | - Gabriel Buzgó
- a Department of Sport Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Bratislava , Slovakia
| | - Jan Cvecka
- a Department of Sport Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Bratislava , Slovakia
| | - Dusan Hamar
- a Department of Sport Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Bratislava , Slovakia
| | - Eugen Laczo
- a Department of Sport Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Bratislava , Slovakia
| | - Monika Okuliarova
- b Department of Animal Physiology and Ethology, Faculty of Natural Sciences , Comenius University in Bratislava , Bratislava , Slovakia
| | - Marian Vanderka
- a Department of Sport Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Bratislava , Slovakia
| | - Tomas Kampmiller
- a Department of Sport Kinanthropology, Faculty of Physical Education and Sports , Comenius University in Bratislava , Bratislava , Slovakia
| | - Keijo Häkkinen
- c Neuromuscular Research Center, Biology of Physical Activity, Faculty of Sport and Health Sciences , University of Jyväskylä , Jyväskylä , Finland
| | - Juha P Ahtiainen
- c Neuromuscular Research Center, Biology of Physical Activity, Faculty of Sport and Health Sciences , University of Jyväskylä , Jyväskylä , Finland
| | - Juha J Hulmi
- c Neuromuscular Research Center, Biology of Physical Activity, Faculty of Sport and Health Sciences , University of Jyväskylä , Jyväskylä , Finland
| | - Tormod S Nilsen
- d Department of Physical Performance , Norwegian School of Sport Sciences , Oslo , Norway
| | - Håvard Wiig
- d Department of Physical Performance , Norwegian School of Sport Sciences , Oslo , Norway
| | - Truls Raastad
- d Department of Physical Performance , Norwegian School of Sport Sciences , Oslo , Norway
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Küüsmaa M, Schumann M, Sedliak M, Kraemer WJ, Newton RU, Malinen JP, Nyman K, Häkkinen A, Häkkinen K. Effects of morning versus evening combined strength and endurance training on physical performance, muscle hypertrophy, and serum hormone concentrations. Appl Physiol Nutr Metab 2016; 41:1285-1294. [DOI: 10.1139/apnm-2016-0271] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study investigated the effects of 24 weeks of morning versus evening same-session combined strength (S) and endurance (E) training on physical performance, muscle hypertrophy, and resting serum testosterone and cortisol diurnal concentrations. Forty-two young men were matched and assigned to a morning (m) or evening (e) E + S or S + E group (mE + S, n = 9; mS + E, n = 9; eE + S, n = 12; and eS + E, n = 12). Participants were tested for dynamic leg press 1-repetition maximum (1RM) and time to exhaustion (Texh) during an incremental cycle ergometer test both in the morning and evening, cross-sectional area (CSA) of vastus lateralis and diurnal serum testosterone and cortisol concentrations (0730 h; 0930 h; 1630 h; 1830 h). All groups similarly increased 1RM in the morning (14%–19%; p < 0.001) and evening (18%–24%; p < 0.001). CSA increased in all groups by week 24 (12%–20%, p < 0.01); however, during the training weeks 13–24 the evening groups gained more muscle mass (time-of-day main effect; p < 0.05). Texh increased in all groups in the morning (16%–28%; p < 0.01) and evening (18%–27%; p < 0.001), however, a main effect for the exercise order, in favor of E + S, was observed on both testing times (p < 0.051). Diurnal rhythms in testosterone and cortisol remained statistically unaltered by the training order or time. The present results indicate that combined strength and endurance training in the evening may lead to larger gains in muscle mass, while the E + S training order might be more beneficial for endurance performance development. However, training order and time seem to influence the magnitude of adaptations only when the training period exceeded 12 weeks.
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Affiliation(s)
| | | | - Milan Sedliak
- Faculty of Physical Education and Sport, Comenius University in Bratislava, 81499, Bratislava, Slovakia
| | - William J. Kraemer
- Department of Human Sciences, The Ohio State University, Columbus, OH 43210 USA
| | - Robert U. Newton
- Exercise Medicine Research Institute, Edith Cowan University, 6027, Joondalup, Australia
| | | | - Kai Nyman
- Central Hospital of Central Finland, 40620, Jyväskylä, Finland
| | - Arja Häkkinen
- University of Jyväskylä, 40014, Jyväskylä, Finland
- Central Hospital of Central Finland, 40620, Jyväskylä, Finland
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Boussetta N, Abedelmalek S, Aloui K, Souissi N, Souissi N. The effect of strength training by electrostimulation at a specific time of day on immune response and anaerobic performances during short-term maximal exercise. BIOL RHYTHM RES 2016. [DOI: 10.1080/09291016.2016.1245379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Zbidi S, Zinoubi B, Vandewalle H, Driss T. Diurnal Rhythm of Muscular Strength Depends on Temporal Specificity of Self-Resistance Training. J Strength Cond Res 2016; 30:717-24. [PMID: 26907843 DOI: 10.1519/jsc.0000000000001144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The study investigated the effect of the time-of-day at which maximal isometric voluntary co-contraction (MIVCC) training is conducted on the adaptation and diurnal variation of maximal and explosive force production. Twenty active men underwent a 6-week (3 times per week) MIVCC training of the right elbow joint. The participants were randomly assigned to a morning training group (MTG, 07:00-08:00 hours) and evening training group (ETG, 17:00-18:00 hours). The maximal voluntary force (MVF) and maximal rate of force development (MRFD) during isometric elbow flexion (MVFF and MRFD(F)) and extension (MVF(E) and MRFD(E)) were recorded before (T0) and after (T1) training in the morning and evening. At T0, MVF and MRFD were higher in the evening compared with those in the morning for the MTG and ETG (p ≤ 0.05). At T1, MVFF and MVFE increased in the morning and evening for both groups (p < 0.001). The MRFD(F) and MRFD(E) increased only if training and test session were scheduled at the same time. The relative increase of MVF was greater at the specific time of training for the MTG (12 and 17.6% in MVF(F) and MVF(E), respectively) and ETG (9.8 and 13.4% in MVF(F) and MVF(E), respectively). The diurnal variations in MVF and MRF(D) during flexion and extension disappeared in the MTG and persisted in the ETG. Maximal isometric voluntary co-contraction training enhanced muscle strength whatever the time-of-day at which the training was scheduled without alteration of explosive force. In contrast, to optimize the muscle strength, our results suggested that morning training may be accompanied by the greatest muscle strength gain and blunted muscle strength variation observed between the morning and evening.
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Affiliation(s)
- Sana Zbidi
- 1Research Center on Sport and Movement (CeRSM, EA 2931), Sciences and Techniques of the Physical and Sporting Activities (UFR STAPS), University of Paris West Nanterre La Defense, Nanterre, France; and2Laboratory of Physiology, UFR Health, Medicine and Human Biology, University of Paris XIII, Bobigny, France
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Burley SD, Whittingham-Dowd J, Allen J, Grosset JF, Onambele-Pearson GL. The Differential Hormonal Milieu of Morning versus Evening May Have an Impact on Muscle Hypertrophic Potential. PLoS One 2016; 11:e0161500. [PMID: 27583459 PMCID: PMC5008805 DOI: 10.1371/journal.pone.0161500] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 08/05/2016] [Indexed: 11/21/2022] Open
Abstract
Substantial gains in muscle strength and hypertrophy are clearly associated with the routine performance of resistance training. What is less evident is the optimal timing of the resistance training stimulus to elicit these significant functional and structural skeletal muscle changes. Therefore, this investigation determined the impact of a single bout of resistance training performed either in the morning or evening upon acute anabolic signalling (insulin-like growth factor-binding protein-3 (IGFBP-3), myogenic index and differentiation) and catabolic processes (cortisol). Twenty-four male participants (age 21.4±1.9yrs, mass 83.7±13.7kg) with no sustained resistance training experience were allocated to a resistance exercise group (REP). Sixteen of the 24 participants were randomly selected to perform an additional non-exercising control group (CP) protocol. REP performed two bouts of resistance exercise (80% 1RM) in the morning (AM: 0800 hrs) and evening (PM: 1800 hrs), with the sessions separated by a minimum of 72 hours. Venous blood was collected immediately prior to, and 5 min after, each resistance exercise and control sessions. Serum cortisol and IGFBP-3 levels, myogenic index, myotube width, were determined at each sampling period. All data are reported as mean ± SEM, statistical significance was set at P≤0.05. As expected a significant reduction in evening cortisol concentration was observed at pre (AM: 98.4±10.5, PM: 49.8±4.4 ng/ml, P<0.001) and post (AM: 98.0±9.0, PM: 52.7±6.0 ng/ml, P<0.001) exercise. Interestingly, individual cortisol differences pre vs post exercise indicate a time-of-day effect (AM difference: -2±2.6%, PM difference: 14.0±6.7%, P = 0.03). A time-of-day related elevation in serum IGFBP-3 (AM: 3274.9 ± 345.2, PM: 3605.1 ± 367.5, p = 0.032) was also evident. Pre exercise myogenic index (AM: 8.0±0.6%, PM: 16.8±1.1%) and myotube width (AM: 48.0±3.0, PM: 71.6±1.9 μm) were significantly elevated (P<0.001) in the evening. Post exercise myogenic index was greater AM (11.5±1.6%) compared with PM (4.6±0.9%). No difference was observed in myotube width (AM: 48.5±1.5, PM: 47.8±1.8 μm) (P>0.05). Timing of resistance training regimen in the evening appears to augment some markers of hypertrophic potential, with elevated IGFBP-3, suppressed cortisol and a superior cellular environment. Further investigation, to further elucidate the time course of peak anabolic signalling in morning vs evening training conditions, are timely.
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Affiliation(s)
- Simon D. Burley
- HEAL Research Centre, Exercise & Sport Science, Manchester Metropolitan University, Crewe Green Road, Crewe, CW1 5DU, United Kingdom
| | - Jayde Whittingham-Dowd
- Faculty of Life Sciences, The University of Manchester, AV Hill Building, Oxford Road, Manchester, M13 9PT, United Kingdom
| | - Jeremy Allen
- School of Health, Sport & Rehabilitation Sciences, University of Salford, Salford, Greater Manchester M5 4WT, United Kingdom
| | - Jean-Francois Grosset
- HEAL Research Centre, Exercise & Sport Science, Manchester Metropolitan University, Crewe Green Road, Crewe, CW1 5DU, United Kingdom
- CNRS UMR 7338, Biomécanique et Bioingénierie, Université de Technologie de Compiègne, 60205 Compiègne cedex, France
| | - Gladys L. Onambele-Pearson
- HEAL Research Centre, Exercise & Sport Science, Manchester Metropolitan University, Crewe Green Road, Crewe, CW1 5DU, United Kingdom
- * E-mail:
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Drummond MD, Szmuchrowski LA, Goulart KN, Couto BP. Effect of strength training on regional hypertrophy of the elbow flexor muscles. Muscle Nerve 2016; 54:750-5. [DOI: 10.1002/mus.25088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 12/29/2015] [Accepted: 02/19/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Marcos D.M. Drummond
- Federal University of Minas Gerais, Av. Antônio Carlos; 6627 - Pampulha - Belo Horizonte - Minas Gerais Brazil CEP 31270-901
| | - Leszek A. Szmuchrowski
- Federal University of Minas Gerais, Av. Antônio Carlos; 6627 - Pampulha - Belo Horizonte - Minas Gerais Brazil CEP 31270-901
| | - Karine N.O. Goulart
- Federal University of Minas Gerais, Av. Antônio Carlos; 6627 - Pampulha - Belo Horizonte - Minas Gerais Brazil CEP 31270-901
| | - Bruno P. Couto
- Federal University of Minas Gerais, Av. Antônio Carlos; 6627 - Pampulha - Belo Horizonte - Minas Gerais Brazil CEP 31270-901
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Goljanek-Whysall K, Iwanejko LA, Vasilaki A, Pekovic-Vaughan V, McDonagh B. Ageing in relation to skeletal muscle dysfunction: redox homoeostasis to regulation of gene expression. Mamm Genome 2016; 27:341-57. [PMID: 27215643 PMCID: PMC4935741 DOI: 10.1007/s00335-016-9643-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/05/2016] [Indexed: 12/17/2022]
Abstract
Ageing is associated with a progressive loss of skeletal muscle mass, quality and function—sarcopenia, associated with reduced independence and quality of life in older generations. A better understanding of the mechanisms, both genetic and epigenetic, underlying this process would help develop therapeutic interventions to prevent, slow down or reverse muscle wasting associated with ageing. Currently, exercise is the only known effective intervention to delay the progression of sarcopenia. The cellular responses that occur in muscle fibres following exercise provide valuable clues to the molecular mechanisms regulating muscle homoeostasis and potentially the progression of sarcopenia. Redox signalling, as a result of endogenous generation of ROS/RNS in response to muscle contractions, has been identified as a crucial regulator for the adaptive responses to exercise, highlighting the redox environment as a potentially core therapeutic approach to maintain muscle homoeostasis during ageing. Further novel and attractive candidates include the manipulation of microRNA expression. MicroRNAs are potent gene regulators involved in the control of healthy and disease-associated biological processes and their therapeutic potential has been researched in the context of various disorders, including ageing-associated muscle wasting. Finally, we discuss the impact of the circadian clock on the regulation of gene expression in skeletal muscle and whether disruption of the peripheral muscle clock affects sarcopenia and altered responses to exercise. Interventions that include modifying altered redox signalling with age and incorporating genetic mechanisms such as circadian- and microRNA-based gene regulation, may offer potential effective treatments against age-associated sarcopenia.
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Affiliation(s)
- Katarzyna Goljanek-Whysall
- MRC-Arthritis Research UK Centre for Integrated research into Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 8XL, UK.
| | - Lesley A Iwanejko
- MRC-Arthritis Research UK Centre for Integrated research into Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 8XL, UK
| | - Aphrodite Vasilaki
- MRC-Arthritis Research UK Centre for Integrated research into Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 8XL, UK
| | - Vanja Pekovic-Vaughan
- MRC-Arthritis Research UK Centre for Integrated research into Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 8XL, UK
| | - Brian McDonagh
- MRC-Arthritis Research UK Centre for Integrated research into Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 8XL, UK.
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Ferchichi S, Taktak Y, Taktak H, Chtourou H, Zarrouk F, Tabka Z, Souissi N. The effect of training at the same time-of-day on the diurnal variations of technical ability and swimming performance. BIOL RHYTHM RES 2016. [DOI: 10.1080/09291016.2015.1133110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mayeuf-Louchart A, Staels B, Duez H. Skeletal muscle functions around the clock. Diabetes Obes Metab 2015; 17 Suppl 1:39-46. [PMID: 26332967 DOI: 10.1111/dom.12517] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 05/03/2015] [Indexed: 12/16/2022]
Abstract
In mammals, the central clock localized in the central nervous system imposes a circadian rhythmicity to all organs. This is achieved thanks to a well-conserved molecular clockwork, involving interactions between several transcription factors, whose pace is conveyed to peripheral tissues through neuronal and humoral signals. The molecular clock plays a key role in the control of numerous physiological processes and takes part in the regulation of metabolism and energy balance. Skeletal muscle is one of the peripheral organs whose function is under the control of the molecular clock. However, although skeletal muscle metabolism and performances display circadian rhythmicity, the role of the molecular clock in the skeletal muscle has remained unappreciated for years. Peripheral organs such as skeletal muscle, and the liver, among others, can be desynchronized from the central clock by external stimuli, such as feeding or exercise, which impose a new rhythm at the organism level. In this review, we discuss our current understanding of the clock in skeletal muscle circadian physiology, focusing on the control of myogenesis and skeletal muscle metabolism.
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Affiliation(s)
- A Mayeuf-Louchart
- University of Lille, U1011, EGID, F-59000, Lille, France
- INSERM, U1011, F-59000 Lille, France
- CHU Lille, F-59000, Lille, France
- Institut Pasteur de Lille, U1011, F-59000 Lille, France
| | - B Staels
- University of Lille, U1011, EGID, F-59000, Lille, France
- INSERM, U1011, F-59000 Lille, France
- CHU Lille, F-59000, Lille, France
- Institut Pasteur de Lille, U1011, F-59000 Lille, France
| | - H Duez
- University of Lille, U1011, EGID, F-59000, Lille, France
- INSERM, U1011, F-59000 Lille, France
- CHU Lille, F-59000, Lille, France
- Institut Pasteur de Lille, U1011, F-59000 Lille, France
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Chtourou H, Ammar A, Nikolaidis PT, Abdel Karim O, Souissi N, Chamari K, Chaouachi A. Post-resistance training detraining: time-of-day effects on training and testing outcomes. BIOL RHYTHM RES 2015. [DOI: 10.1080/09291016.2015.1063204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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West DJ, Cook CJ, Beaven MC, Kilduff LP. The Influence of the Time of Day on Core Temperature and Lower Body Power Output in Elite Rugby Union Sevens Players. J Strength Cond Res 2014; 28:1524-8. [DOI: 10.1519/jsc.0000000000000301] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kraemer WJ, Boyd BM, Hooper DR, Fragala MS, Hatfield DL, Dunn-Lewis C, Comstock BA, Szivak TK, Flanagan SD, Looney DP, Newton RU, Vingren JL, Häkkinen K, White MT, Volek JS, Maresh CM. Epinephrine preworkout elevation may offset early morning melatonin concentrations to maintain maximal muscular force and power in track athletes. J Strength Cond Res 2014; 28:2604-10. [PMID: 24513613 DOI: 10.1519/jsc.0000000000000392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The optimal time of day for training has become an important question for many strength and conditioning specialists, and this study was designed to add some insights into this complex question. The primary purpose of this investigation was to examine physical performance within the temporal context of the relationship between physical performance, epinephrine, and melatonin concentrations in the early morning (0530 hours) and late (1500 hours) afternoon in elite collegiate male track and field athletes (jumpers and sprinters). Subjects had a mean (±SD) age, height, and body mass of 20.4 (±1.6) years, 185.8 (±9.4) cm, and 77.9 (±8.5) kg, respectively. Blood was obtained before each AM and PM testing session. Mean plasma melatonin concentrations were 34.9 ± 22.7 pg·ml and 4.8 ± 3.3 pg·ml for the AM vs. PM trials, respectively, demonstrating a significant (p ≤ 0.05) difference between time points. Mean resting plasma epinephrine concentrations for AM (171.7 ± 33.7 pmol·L) and PM (127.6 ± 47.8 pmol·L) also differed significantly between trails at the different times. In addition, significant differences were observed with respect to foot quickness in the AM (5.14 ± 1.06 seconds) and PM (4.39 ± 0.76 seconds). Mean peak power output for vertical jump power was 5,407.1 ± 1,272.9 W, 5,384.6 ± 888.3 W for AM vs. PM trials, respectively, which were not significantly different. The results of this investigation indicate that time of day did not negatively impact whole body physical performance in trained track athletes but did impact the quality of quickness. Thus in the morning, whole body power performances may be enhanced through adrenergic arousal when melatonin is elevated. However, this was not the case for movements requiring quickness and accuracy of movement. To compensate for the "sleepiness" associated with high concentrations of melatonin, being secreted from the pineal gland representing a continued "sleepiness" effect on the body, early morning practices may require greater adrenergic arousal to potentially offset melatonin's effects. The results of this study raise important questions on the use of early morning practices for more complex tasks that require high reaction speeds, even under conditions of adrenergic arousal.
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Affiliation(s)
- William J Kraemer
- 1Department of Kinesiology, Human Performance Laboratory, University of Connecticut, Storrs, Connecticut; 2Institute of Exercise Physiology and Wellness, Department of Educational and Human Sciences, University of Central Florida, Orlando, Florida; 3Department of Kinesiology, University of Rhode Island, Kingston, Rhode Island; 4School of Exercise and Health and Sports Sciences, Edith Cowan University, Joondalup, Australia; 5Department of Kinesiology, Health Promotion and Recreation, University of North Texas, Denton, Texas; 6Department of Biology of Physical Activity, University of Jyväskylä, Finland; and 7Department of Human Sciences, Ohio State University, Columbus, Ohio
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Seo DY, Lee S, Kim N, Ko KS, Rhee BD, Park BJ, Han J. Morning and evening exercise. Integr Med Res 2013; 2:139-144. [PMID: 28664065 PMCID: PMC5481716 DOI: 10.1016/j.imr.2013.10.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 10/04/2013] [Accepted: 10/04/2013] [Indexed: 11/21/2022] Open
Abstract
A growing body of evidence suggests that exercise may contribute to preventing pathological changes, treating multiple chronic diseases, and reducing mortality and morbidity ratios. Scientific evidence moreover shows that exercise plays a key role in improving health-related physical fitness components and hormone function. Regular exercise training is one of the few strategies that has been strictly adapted in healthy individuals and in athletes. However, time-dependent exercise has different outcomes, based on the exercise type, duration, and hormone adaptation. In the present review, we therefore briefly describe the type, duration, and adaptation of exercise performed in the morning and evening. In addition, we discuss the clinical considerations and indications for exercise training.
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Affiliation(s)
- Dae Yun Seo
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan, Korea
| | - SungRyul Lee
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan, Korea
| | - Nari Kim
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan, Korea
| | - Kyung Soo Ko
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan, Korea
| | - Byoung Doo Rhee
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan, Korea
| | - Byung Joo Park
- Division of Leisure and Sports Science, Dong Seo University, Busan, Korea
| | - Jin Han
- National Research Laboratory for Mitochondrial Signaling, Department of Physiology, College of Medicine, Cardiovascular and Metabolic Disease Center, Inje University, Busan, Korea
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Sedliak M, Zeman M, Buzgó G, Cvečka J, Hamar D, Laczo E, Zelko A, Okuliarová M, Raastad T, Nilsen TS, Kyröläinen H, Häkkinen K, Ahtiainen JP, Hulmi JJ. Effects of time of day on resistance exercise-induced anabolic signaling in skeletal muscle. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2012.740314] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
This article focuses on physical performances after training at a specific time of day. To date, although the effect of time of day on aerobic performances appears to be equivocal, during anaerobic exercises, the effect of time of day has been well established with early morning nadirs and peak performances in the late afternoon. These diurnal rhythms can be influenced by several factors such as the regular training at a specific time of day. Indeed, regular training in the morning hours may increase the lower morning performances to the same or even higher level as their normal diurnal peak typically observed in the late afternoon by a greater increase of performance in the evening. However, regular training in the evening hours may increase the morning-evening (i.e., amplitude of the rhythm) difference by a greater increase of performance in the late afternoon. Therefore, adaptations to training are greater at the time of day at which training is regularly performed than at other times. Nevertheless, although modifications in resting hormones concentrations could explain this time-of-day specific adaptations, precise information on the underlying mechanisms is lacking.
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Affiliation(s)
- Hamdi Chtourou
- Research Laboratory Sports Performance Optimization, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.
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Chaouachi A, Leiper JB, Chtourou H, Aziz AR, Chamari K. The effects of Ramadan intermittent fasting on athletic performance: recommendations for the maintenance of physical fitness. J Sports Sci 2012; 30 Suppl 1:S53-73. [PMID: 22738880 DOI: 10.1080/02640414.2012.698297] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The behavioural modifications that accompany Ramadan intermittent fasting (RIF) are usually associated with some alterations in the metabolic, physiological, and psychological responses of athletes that may affect sport performance. Muslim athletes who are required to train and/or compete during the month-long, diurnal fast must adopt coping strategies that allow them to maintain physical fitness and motivation if they are to perform at the highest level. This updated review aims to present the current state of knowledge of the effects of RIF on training and performance, focusing on key-factors that contribute to the effects of Ramadan on exercise performance: energy restriction, sleep deprivation, circadian rhythm perturbation, dehydration, and alterations in the training load. The available literature contain few studies that have examined the effects of RIF on physical performance in athletes and, to date, the results are inconclusive, so the effects of RIF on competition outcomes are not at present wholly understood. The diverse findings probably indicate individual differences in the adaptability and self-generated coping strategies of athletes during fasting and training. However, the results of the small number of well-controlled studies that have examined the effects of Ramadan on athletic performance suggest that few aspects of physical fitness are negatively affected, and where decrements are observed these are usually modest. Subjective feelings of fatigue and other mood indicators are often cited as implying additional stress on the athlete throughout Ramadan, but most studies show that these factors may not result in decreases in performance and that perceived exercise intensity is unlikely to increase to any significant degree. Current evidence from good, well-controlled research supports the conclusion that athletes who maintain their total energy and macronutrient intake, training load, body composition, and sleep length and quality are unlikely to suffer any substantial decrements in performance during Ramadan. Further research is required to determine the effect of RIF on the most challenging events or exercise protocols and on elite athletes competing in extreme environments.
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Affiliation(s)
- Anis Chaouachi
- Tunisian Research Laboratory Sports Performance Optimization National Center of Medicine and Science in Sports, Tunis, Tunisia.
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Chtourou H, Chaouachi A, Driss T, Dogui M, Behm DG, Chamari K, Souissi N. The effect of training at the same time of day and tapering period on the diurnal variation of short exercise performances. J Strength Cond Res 2012; 26:697-708. [PMID: 21857363 DOI: 10.1519/jsc.0b013e3182281c87] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The purpose of this investigation was to assess the effects of training and tapering at the same time of the day on the diurnal variations of short exercise performances. Thirty-one physically active men underwent 12 weeks of lower-extremity resistance training and 2 weeks of tapering. These subjects were matched and randomly assigned to a morning training group (MTG, training times 0700-0800 hours, n = 10), an evening training group (ETG, training times 1700-1800 hours, n = 11), and a control group (CG, completed all tests but did not train, n = 10). Muscular strength and power testing was conducted before (T0) and after 12 weeks of training (T1) and after 2 weeks of tapering (T2) in the morning (0700-0800 hours) and in the evening (1700-1800 hours). All morning and evening tests were performed in separate sessions (minimum interval = 36 hours) in a randomized design. In T0, the oral temperature and performances during the Wingate, vertical jump (squat jump and countermovement jump), and maximal voluntary contraction tests were higher in the evening than in the morning for all the groups. In T1, these diurnal variations were blunted in the MTG and persisted in the ETG and CG. In T2, the 2 weeks of tapering resulted in further time of day-specific adaptations and increases in short-term maximal performances. However, there was no significant difference in the relative increase between the MTG and the ETG after both training and tapering. From a practical point of view, if the time of competition is known, training and tapering sessions before a major competition must be conducted at the same time of the day at which one's critical performance is programmed. Moreover, if the time of the competition is not known, a tapering phase after resistance training program could be performed at any time of the day with the same benefit.
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Affiliation(s)
- Hamdi Chtourou
- Tunisian Research Laboratory Sports Performance Optimization National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.
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Chtourou H, Driss T, Souissi S, Gam A, Chaouachi A, Souissi N. The effect of strength training at the same time of the day on the diurnal fluctuations of muscular anaerobic performances. J Strength Cond Res 2012; 26:217-25. [PMID: 21993020 DOI: 10.1519/jsc.0b013e31821d5e8d] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The aim of this study was to examine the effects of training at the same time of the day on the diurnal variations of anaerobic performances to provide some recommendations to adjust training hours with the time of the day of competitive events. Thirty participants underwent 8 weeks of lower-extremity progressive resistance training performed 3 times per week designed to promote muscular strength and power. These subjects were randomly assigned to a morning training group (MTG, 07:00-08:00 hours, n = 10), an evening training group (ETG, 17:00-18:00 hours, n = 10), and a control group (CG, completed all tests but did not train, n = 10). Performance in the squat jump, the countermovement jump, the Wingate and 1 repetition maximum (1RM) during leg extension, leg curl, and squat tests was recorded just before and 2 weeks after an 8-week course of regular training. For all the subjects, the morning and evening tests were scheduled at the same time of the day as for the morning and evening training sessions. Before training, the results indicated a significant increase in performance from morning to evening tests (ca. 2.84-17.55% for all tests) for all groups. After training, the diurnal variations in anaerobic performances were blunted in the MTG. In fact, there was no significant difference in muscular power or strength between morning and evening tests. However, these intradaily variations in anaerobic performances persisted in the ETG and CG. From a practical point of view, adaptation to strength training is greater at the time of the day at which training was scheduled than at other times.
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Affiliation(s)
- Hamdi Chtourou
- Research Laboratory Sports Performance Optimization, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia
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Romero FG, Lira FS, Marques FA, Muzy PC, Peres RA, Caperuto EC. PAKs supplement improves immune status and body composition but not muscle strength in resistance trained individuals. J Int Soc Sports Nutr 2010; 7:36. [PMID: 21059194 PMCID: PMC2992039 DOI: 10.1186/1550-2783-7-36] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 11/08/2010] [Indexed: 12/30/2022] Open
Abstract
Mixed formula supplements are very popular among recreational and professional weightlifters. They are usually known as PAKs and they are supposed to have a synergistic effect of their different nutrients. The purpose of this study was to determine the effects of chronic (4 weeks) PAKS supplementation in combination with strength training on body composition, immune status and performance measures in recreationally trained individuals with or without PAKs supplementation. Methods: Twelve male subjects (Placebo n = 6 and PAKs supplement n = 6) were recruited for this study. The body composition, one maximum strength repetition tests and immune status were assessed before and after 4 week supplementation. Our data showed that, 4 week PAK supplementation associated with strength exercise not was effective in change strength than compared with placebo group. However, we observed that, PAK supplement was able to improve immune status and reduced body composition when compared with placebo group. These results indicate that, a mixed formula supplement is able to improve immune status and body composition but not maximum strength in recreational strength trained subjects in a 4 weeks period.
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Affiliation(s)
- Frederico G Romero
- Department of Biodynamic, Mackenzie Presbiterian University, São Paulo, Brazil.
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