Jet lag: an underestimated factor in reduced physical performance in athletes DOI Creative Commons
Michał Tokarski,

Angelika Tokarska,

Paula Bieganek

и другие.

Quality in Sport, Год журнала: 2024, Номер 21, С. 53879 - 53879

Опубликована: Авг. 28, 2024

Jet lag is a common issue affecting most athletes traveling across at least 2 time zones, particularly when eastward. Observational studies on over 114,000 game matches have established that teams had statistically significant higher rate of losses. manifests not only in decline athletes' physical performance but also affects cognitive abilities, attention span, and subjective feelings fatigue. Melatonin can be very important supplement helping to regulate the circadian rhythm. Other recommended methods include phototherapy, appropriate meal timing, sedative medications. This paper aims gather latest clinical research assessing predisposition jet symptoms, large-scale retrospective observational evaluating this phenomenon, discusses functioning rhythm, for alleviating its manifestations.

Язык: Английский

Body composition, exercise-related performance parameters and associated health factors of transgender women, cisgender women and cisgender men volleyball players DOI
Leonardo Azevedo Mobilia Alvares, Marcus Vinicius Lúcio dos Santos Quaresma, Fernanda Patti Nakamoto

и другие.

British Journal of Sports Medicine, Год журнала: 2025, Номер unknown, С. bjsports - 108601

Опубликована: Фев. 18, 2025

Objective The inclusion of transgender athletes in competitive sports has promoted significant dialogue and controversy among exercise-related professionals. objective this study was to investigate body composition, performance parameters associated health-related factors women (TW), cisgender (CW) men (CM) amateur volleyball players. Methods This a cross-sectional comprising TW, CW CM players eligible with the following characteristics: ‘gender incongruent’ (for TW only); age between 18 35 years; mass index (BMI) 18.0 29.9 kg/m 2 ; ‘very active’ according International Physical Activity Questionnaire, engaged regular training for at least 1 year. All participants were assessed blood biomarkers, handgrip strength, countermovement jump height (CMJ), squat (SQJ) maximum oxygen consumption (V̇O 2max ). Results 69 initially evaluated, but only 23 met criteria included (7 8 CM). Age (p=0.07) BMI (p=0.26) similar groups. Estradiol (p=0.47), total testosterone (p=1.00) haemoglobin levels did not differ CW. However, analysis adjusted by confounding variables showed that presented higher (p<0.001), (p=0.03), lean strength CMJ SQJ (p=0.012) V̇O (mL/min) (p=0.001) compared TW. When variables, all p values <0.05, except (p=0.062). Conclusion displayed exercise biomarkers lower results CM.

Язык: Английский

Процитировано

1

Sleep Varies According to Game Venue but Not Season Period in Female Basketball Players: A Team-Based Observational Study DOI Creative Commons
Aaron T. Scanlan, Nathan Elsworthy, Jordan L. Fox

и другие.

Applied Sciences, Год журнала: 2025, Номер 15(5), С. 2731 - 2731

Опубликована: Март 4, 2025

Sleep is an essential part of the recovery process that may be jeopardized during specific contexts across season. Therefore, this study aimed to examine impact key contextual factors—game venue and season period—on sleep in semi-professional, female basketball players. was monitored players using wrist-worn activity monitors entire regular For game analyses, nights were categorized as a control, before after home games, well away games. period arranged into evenly distributed four-week blocks early, middle, late periods Players slept significantly less on games (p < 0.05) than other nights, which attributed earlier wake times 0.05). While onset offset later middle early 0.05), duration quality remained consistent periods. These results suggest could experience disrupted prior has potential implications for performance upcoming Coaches staff need consider implementing suitable strategies safeguard their these scenarios.

Язык: Английский

Процитировано

0

Effects of sleep deprivation on sports performance and perceived exertion in athletes and non-athletes: a systematic review and meta-analysis DOI Creative Commons
Yan Kong,

Beibei Yu,

Ge Guan

и другие.

Frontiers in Physiology, Год журнала: 2025, Номер 16

Опубликована: Апрель 1, 2025

Sleep deprivation can significantly affect sports performance and the perception of fatigue. However, impact sleep on remains a subject ongoing debate across different populations. This study aimed to investigate effects ratings perceived exertion (RPE) in groups, as well how types these aspects. systematic review followed PRISMA guidelines (PROSPERO CRD42023492792). Randomized controlled trials (RCTs) randomized crossover studies published any language or up date were eligible based P.I.C.O.S. criteria. The search included databases such PubMed, Cochrane, Embase, Web Science, EBSCO, covering September 2024. Cochrane RoB 2 tool was used assess risk bias. Meta-analysis conducted using either fixed-effect model random-effects model. subgroup analyses populations, deprivation, testing times. includes 45 studies, comprising 16 aerobic endurance (AE) performance, 8 anaerobic (AnE) 23 explosive power (EP), 10 maximum force (MF), 4 speed, skill control, 12 rating (RPE). results indicate that impaired AE athletes [SMD = -0.66; 95% CI (-1.28, -0.04); P 0.04], EP -0.63; (-0.94, -0.33); < 0.00001], MF -0.35; (-0.56, -0.14); 0.001], speed -0.52, (-0.83, -0.22); 0.0008], control -0.87; (-1.7, RPE 0.39; (0.11, 0.66); 0.006]. Additionally, also reduced healthy non-athletes -1.02; (-1.84, -0.21); 0.01]. During process, early (PSDE) -1.04; (-1.58, -0.5); 0.0002], -0.57; -0.19); 0.003], -0.78; (-1.35, -0.2); 0.008], 0.6; (0.17, 1.02); Late (PSDB) impacted (-1.15, 0.01); 0.05], -2.12; (-3.01, -1.24); 0.47; (0.02, 0.92); 0.04]. Overall, total primarily affected -0.56; (-1.08, -0.05); 0.03]. In terms phases, p.m. tests had significant -1.4; (-2.47, -0.34); 0.01], -0.68; (-1.06, -0.31); 0.0004], -0.3; (-0.51, -0.09); 0.005], 0.72; (0.20, 1.24); 0.007]. contrast, a.m. -0.81; (-1.52, -0.1); 0.03] 0.44; (0.01, 0.86); impairs athletes' various domains, including AE, MF, while exacerbating RPE. although negatively affects non-athletes. Furthermore, PSDE appears have more pronounced effect overall. assessments been shown further performance. These findings are crucial for understanding impacts both non-athletes, particularly context training competitive settings.

Язык: Английский

Процитировано

0

Influence of Sleep Quality on Recovery and Performance in Endurance and Ultra-Endurance Runners: Sex Differences Identified Through Hierarchical Clustering DOI Open Access
Júlia Pagotto Matos, Larissa Quintão Guilherme, Samuel Encarnação

и другие.

Healthcare, Год журнала: 2025, Номер 13(7), С. 812 - 812

Опубликована: Апрель 3, 2025

Background: Assessing sleep quality is essential in sports science, particularly ultra-endurance sports, where recovery critical for performance and health. Objective: This study aimed to identify patterns among endurance athletes using hierarchical clustering analysis, with comparisons by sex modality. Method: Data were collected during the La Misión Brasil competitions 2023 2024, Pittsburgh Sleep Quality Index (PSQI). The questionnaire was emailed all registered runners two weeks before event. A total of 490 participated, including 276 men (mean ± SD age: 43 11 years) 214 women 13 years). Statistical analyses included Cohen's d r effect sizes, a 95% confidence interval hypothesis testing. Residuals between-cluster proportions assessed within range -3.3, ensuring 99.7% level significant differences. Results: results showed that had better quality, most scoring low on PSQI. In contrast, displayed greater variability, higher prevalence poor women. Conclusions: method effectively identified distinct patterns, providing insights into dynamics performance. These findings highlight impact increased physical psychological demands emphasize need tailored monitoring strategies optimize athletes.

Язык: Английский

Процитировано

0

The Sleep–Wake Cycle Pattern of a Blind Trail Ultramarathon Runner and His Guide: The World’s First Case DOI Creative Commons
Larissa Quintão Guilherme, Júlia Pagotto Matos, Ana Claudia Pelissari Kravchychyn

и другие.

Clocks & Sleep, Год журнала: 2025, Номер 7(2), С. 20 - 20

Опубликована: Апрель 15, 2025

Trail running has seen a surge in participants, including individuals with disabilities, particularly ultratrail (UTRs). Sleep–wake patterns are crucial for optimal performances UTRs, which present unique physiological and behavioral challenges. This case study evaluated the sleep–wake cycle of blind trail ultramarathoner (BTR) his guide (GTR) before, during, after an 80 km UTR. Two male participants (BTR: 54 years, BMI: 26.1 kg/m2; GTR: 48 24.2 kg/m2) were assessed using validated questionnaires (MEQ, ESS, ISI, PSQI) actigraphy over 35 days. The BTR exhibited morning chronotype (MEQ = 63), mild insomnia (ISI 11), poor sleep quality (PSQI 5), prolonged latency (>60 min), while GTR showed indifferent 52), good 3), shorter (10 min). Post-competition, both athletes experienced increased total time (TST): by 17.8% (05:32:00 vs. 04:25:00) 5.5% (07:01:00 06:39:00). demonstrated greater Wakefulness onset (WASO 01:00:00 00:49:00) awakenings (15.4 6.1). A series analysis revealed variability BTR’s post-competition efficiency TST, stability circadian phase. These findings highlight intricate challenges faced athletes, informing strategies to optimize recovery performance.

Язык: Английский

Процитировано

0

Relationships between smart ring-measured sleep variables and next-day basketball game performance: A case series DOI

Jennifer B. Fields,

Joseph Hahn,

Andrew R. Jagim

и другие.

International Journal of Sports Science & Coaching, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Sleep is critical to athlete health and sport performance. Purpose To evaluate the relationship between objective sleep data next-day basketball game Methods Collegiate men athletes (n = 4) wore smart ring trackers night before games 22). variables included hours of total (TS), rapid eye movement duration (RM), deep (DS), heart rate variability (HRV). Game performance was evaluated using field goal percentage (FG%) player efficiency (EFF). Results TS, RM, DS, HRV demonstrated very weak relationships with FG% ( p > 0.05) EFF 0.05). Individual analysis revealed one exhibited strong moderate correlations for TS-EFF (r 0.67), RS-EFF 0.41), TS-FG% 0.51), RM-FG% 0.67) < metrics had no effect on (R 2 0.025) 0.053) Conclusions suggest a lack group-level associations ring-measured This highlights need individualized monitoring rather than relying solely metrics.

Язык: Английский

Процитировано

0

Jet lag: an underestimated factor in reduced physical performance in athletes DOI Creative Commons
Michał Tokarski,

Angelika Tokarska,

Paula Bieganek

и другие.

Quality in Sport, Год журнала: 2024, Номер 21, С. 53879 - 53879

Опубликована: Авг. 28, 2024

Jet lag is a common issue affecting most athletes traveling across at least 2 time zones, particularly when eastward. Observational studies on over 114,000 game matches have established that teams had statistically significant higher rate of losses. manifests not only in decline athletes' physical performance but also affects cognitive abilities, attention span, and subjective feelings fatigue. Melatonin can be very important supplement helping to regulate the circadian rhythm. Other recommended methods include phototherapy, appropriate meal timing, sedative medications. This paper aims gather latest clinical research assessing predisposition jet symptoms, large-scale retrospective observational evaluating this phenomenon, discusses functioning rhythm, for alleviating its manifestations.

Язык: Английский

Процитировано

0