Conceptualizing a load and volume autoregulation integrated velocity model to minimize neuromuscular fatigue and maximize neuromuscular adaptations in resistance training

European Journal of Applied Physiology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 26, 2025

Язык: Английский

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Interactions between neurotrophins, mood, and physical activity under the conditions of sleep deprivation

Translational Psychiatry, Год журнала: 2024, Номер 14(1)

Опубликована: Март 22, 2024

Abstract Sleep deprivation (DS) is the forced elimination of sleep. While brain-derived neurotrophic factor (BDNF) has been extensively studied in context mood changes following DS, role other neurotrophins remains elusive. This study explores impact DS on BDNF, glial cell line-derived (GDNF), neurotrophin-3 (NT3), and neurotrophin-4 (NT4) at mRNA protein level, considering their potential links to disturbances. The involved 81 participants subjected polysomnography (PSG) DS. Blood samples, assessments, actigraphy data were collected twice, after PSG NT expression serum concentrations GDNF, NT3, NT4 measured. Participants divided into Responders Non-Responders based improvement reduced BDNF all participants, with no change protein. GDNF decreased Non-Responders, while exhibited mRNA. NT3 increased both groups, Respondents. rose universally post-DS, but remained unchanged. Physical activity (PA) negatively correlated post-DS. study’s short duration exclusion immature forms limit comprehensive insights. together might play an important response PA during seems impair NTs leukocytes. Future studies subject sleep consider investigating relationship between apparent redundancy.

Язык: Английский

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Effects of Acute Sleep Deprivation on Sporting Performance in Athletes: A Comprehensive Systematic Review and Meta-Analysis

Nature and Science of Sleep, Год журнала: 2024, Номер Volume 16, С. 935 - 948

Опубликована: Июль 1, 2024

Objective: Using meta-analysis to comprehensively and quantitatively evaluate the impact of acute sleep deprivation on different sports performance athletes, this study aims provide scientific guidance for coaches in optimizing adjusting training competition arrangements. Methods: Establishing literature inclusion exclusion criteria, we conducted searches both Chinese English databases. stata 14.0, analyzed 75 indicators from 27 included literature, focusing three aspects: overall athletic performance, sporting across various abilities, disparities between morning afternoon following deprivation. Results: The effect size was − 0.56 ( P < 0.05). Sub-analyses revealed sizes 0.23 0.05) whole night deprivation, 1.17 partial at end night, 0.25 > beginning night. high intensity intermittent exercise, skill control, speed, aerobic endurance, explosive power were 1.57, 1.06, 0.67, 0.54, 0.39 respectively 0.30, 1.11, Conclusion: Acute significantly impairs with a more pronounced negative observed Various types exercise are adversely affected by magnitude ranking intermittent, power. Following athletes' is inferior that morning. Keywords: ability,

Язык: Английский

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Sleep Patterns Fluctuate Following Training and Games across the Season in a Semi-Professional, Female Basketball Team

Brain Sciences, Год журнала: 2023, Номер 13(2), С. 238 - 238

Опубликована: Янв. 31, 2023

Quantifying athlete sleep patterns may inform development of optimal training schedules and strategies, considering the competitive challenges faced across season. Therefore, this study comprehensively quantified a female basketball team examined variations in between nights. Seven semi-professional, players had their monitored using wrist-worn activity monitors perceptual ratings during 13-week in-season. Sleep variables were compared different nights (control nights, before games, non-congested game congested nights), generalized linear mixed models, as well Cohen’s d odds ratios effect sizes. Players experienced less on games to control (p < 0.05, = 0.43–0.69). also exhibited later onset times 0.01, 0.68), earlier offset following all other 0.74–0.79). Moreover, attaining better perceived quality was 88% lower than 0.001). While attained an adequate duration (7.3 ± 0.3 h) efficiency (85 2%) average in-season, they susceptible poor games. Although limited team-based case series design, these findings suggest coaches need reconsider scheduling team-based, on-court sessions prior consider implementing suitable psychological recovery strategies around optimize player sleep.

Язык: Английский

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Association between non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol ratio (NHHR) and sleep disorders in US adults: NHANES 2005 to 2016

Medicine, Год журнала: 2024, Номер 103(26), С. e38748 - e38748

Опубликована: Июнь 28, 2024

NHHR (non-high-density lipoprotein cholesterol to high-density ratio) is a novel lipid parameter. However, the association between and sleep disorders remains unknown.; A cross-sectional analysis was conducted using data from National Health Nutrition Examination Survey (NHANES) 2005 2016. The explored weighted multivariate logistic regression generalized summation models. Subgroup analyses were employed verify robustness of this association. prevalence 25.83% in total 22,221 participants. Compared lowest quartile NHHR, participants top had 14% higher odds fully adjusted model (OR: 1.14, 95% CI: 1.06–1.23). After subgroup interaction tests, sex, race, marital status, education level, body mass index (BMI), person income ratio (PIR), alcohol consumption, smoking hypertension, diabetes mellitus not significantly associated with positive (P for > 0.05). positively US adults. management monitoring may have potential role improving disorders.

Язык: Английский

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Modeling the repetitions‐in‐reserve‐velocity relationship: a valid method for resistance training monitoring and prescription, and fatigue management

Physiological Reports, Год журнала: 2024, Номер 12(5)

Опубликована: Фев. 28, 2024

Abstract Establishing a relationship between repetitions left in reserve and the mean absolute velocity (RIR‐velocity relationship) during resistance training (RT) could allow for objective monitoring, prescription, real‐time adjustment of load set‐volume. Therefore, we examined goodness fit prediction accuracy general individual RIR‐velocity relationships free‐weight back squat exercise. The effects sex, status history, as well personality traits, on these were also investigated. Forty‐six resistance‐trained people (15 females 31 males) performed one‐repetition maximum (1RM) test, two to failure (RTF) tests 72 h apart. We found greater compared relationships. Individual, but not established first testing session yielded acceptable RIR (mean error <2 repetitions) subsequent session, regardless used. Similar results obtained when both averaged across loads, suggesting that single covering range loads can be used instead traditional RT methods, potentially allowing better fatigue management more efficient adaptation.

Язык: Английский

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Implementing a velocity-based approach to resistance training: the reproducibility and sensitivity of different velocity monitoring technologies

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Май 2, 2023

Abstract This study examined the reproducibility of GymAware, PUSH2 and Vmaxpro velocity monitoring devices during resistance training (RT). The sensitivity these to detect smallest changes in that correspond true RT performance was also investigated. Fifty-one resistance-trained men women performed an incremental loading (1RM) test, two repetitions failure tests with different loads, 72 h apart. During all repetitions, mean (MV) peak (PV) were simultaneously recorded by each brand. Overall, GymAware most reliable sensitive device for detecting performance, regardless metric used. can be considered as equivalent, cheaper alternative prescription, but only if MV is Caution should exercised when using practice due their comparatively higher, unacceptable measurement error generally low performance. Collectively, findings support use PV from prescription magnitudes error; thus, allowing detection meaningful neuromuscular status functional RT.

Язык: Английский

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Associations of sleep time, quality of life, and obesity indicators on physical literacy components: a structural equation model

BMC Pediatrics, Год журнала: 2024, Номер 24(1)

Опубликована: Март 7, 2024

Abstract Aim To verify the association between ideal sleep time and physical literacy components while also considering multiple mediators, such as quality of life obesity, using a sample adolescents. Methods This cross-sectional study consisted 470 adolescents aged 11–17 years from southern Brazil. Sleep time, health-related life, (i.e., education enjoyment, sports participation, sedentary behavior, moderate to vigorous activity, sex, age) were evaluated through self-reported questionnaires. In addition, body mass index (BMI), waist circumference determined. The theoretical/statistical support structural equation model was according fit parameters strength association. Results A direct observed more lower levels obesity. obesity indicators had negative with HqOL, HqOL positive literacy. indirect associations indicated that positively associated components, mediation effect explains in 31% variance ( R = 0.31). Conclusion There an duration both variables These relationships occur even influence Therefore, child who sleeps adequately has higher likelihood being physically active, regardless potentially enhancing overall across various domains.

Язык: Английский

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Nocturnal Smartphone Use Affects Sleep Quality and Cognitive and Physical Performance in Tunisian School-Age Children

European Journal of Investigation in Health Psychology and Education, Год журнала: 2024, Номер 14(4), С. 856 - 869

Опубликована: Март 28, 2024

Nocturnal smartphone use emits blue light, which can adversely affect sleep, leading to a variety of negative effects, particularly in children. Therefore, the present study aimed determine effect acute (AC) (one night) and repeated (RC) (five nights) nocturnal exposure on cortisol, next-day performance Tunisian Thirteen participants (seven girls six boys, age 9 ± 0.6, height 1.32 0.06, weight 34.47 4.41) attended experimental nights. The experiment started with baseline night (BL) no exposure, followed by sessions lasting 90 minutes (08:00 pm–09:30 pm). Actigraphy; salivary cortisol; Stroop test (selective attention); choice reaction time (CRT); N-back (working memory); counter-movement jump (CMJ), composed flight (time spent CMJ phase) height; 30 m sprint were assessed morning after each condition. Both AC RC shortened total sleep (TST) (p < 0.01), greater decrease (−46.7 min, ∆% = −9.46) than (−28.8 −5.8) compared BL. significantly increased waking onset (3.5 15.05, 9.9 43.11%) number errors made (1.8 error, 74.23, 3.07 97.56%). Children 0.15 0.8 more (∆% 6.2 57.61%) 46.9 s 71.6 CRT tasks 7.22 11.11%) RC, respectively, high-interference index task, performance, speed only altered 0.01) following (0.36, Δ% 41.52%; −34 s, −9.29%, for −1.23 m, −8.72%, 0.49 6.48, respectively) when In conclusion, one- or five-night smartphones disturbed children’s quality their pronounced effects RC.

Язык: Английский

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Effect of Peanut Butter Intake on Sleep Health in Firefighters: A Randomized Controlled Trial

International Journal of Environmental Research and Public Health, Год журнала: 2024, Номер 21(5), С. 571 - 571

Опубликована: Апрель 29, 2024

Sleep is often impaired in firefighters due to the psychologically and physiologically intense nature of their work working shift schedules. Peanut butter affordable a substantial source monounsaturated fatty acids, which may aid sleep health. Thus, this study sought determine if daily serving peanut consumed before bedtime for seven weeks altered quality quantity among full-time firefighters. Forty (peanut group = 20; control 20) participated eight-week randomized controlled trial. All participants completed subjective questionnaire on mood, focus, alertness twice wore an Actigraph wristwatch measure variables, including latency, efficiency, time bed, asleep, wake after onset, number awakenings, spent awake. After baseline week, two tablespoons hours prior weeks. Compared group, did not demonstrate significant changes (p > 0.05) measures or feelings consuming Therefore, as peanuts alter

Язык: Английский

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