Recovery & Sleep
55 items
Inter-Set Blood-Flow Restriction Increases Peripheral Physiological Stress While Preserving Repeated-Sprint Mechanical Output in Trained Athletes.
Researchers had 26 national-level male badminton players do repeated 5-second cycling sprints, applying blood-flow restriction cuffs (or a sham low-pressure cuff) to the legs during the rest periods between sets. Sprint power was unaffected by the cuffs, but BFR lowered muscle oxygen levels and slowed reoxygenation during recovery, raised leg discomfort and perceived effort, and led to a drop in countermovement jump height afterward.
Impact of Combined Core Strength, Balance and Visual Skill Training on Selected Skill-Related Physical Fitness and Performance Variables of School-Level Badminton Players in Tirupathur District: A Quasi-Experimental Study
Researchers gave school-age badminton players in Tamil Nadu a 12-week programme combining core strength, balance, and visual (eye-tracking/coordination) training, then compared them with players doing their usual training. The trained group showed greater gains in agility, dynamic balance, explosive power, eye-hand coordination, and badminton skill performance than the control group.
A Biopsychosocial Model of Athlete Performance: Integrating Psychological Skills, Coaching Competence, Nutritional Readiness and Well-Being Among Nigerian University Athletes
Researchers surveyed 149 university athletes in Nigeria to see how psychological skills, coaching quality, nutritional readiness and general well-being related to their self-reported competitive performance. Together these four factors explained about 61% of the differences in performance, with coaching competence the strongest single contributor, followed by well-being, mental skills and nutrition.
Evaluation of GFAP, UCH-L1 and S100B Blood Biomarkers for the Management of Sports-Related Concussion in Professional Rugby Players: A Prospective Observational Study
Researchers tracked 68 elite French rugby players over two seasons, measuring three brain-injury blood markers (GFAP, UCH-L1, S100B) at baseline, after matches, and after 23 suspected concussions. S100B and UCH-L1 rose 2 hours after normal matches in line with how many contacts a player had, but all markers returned to baseline by 36 hours; at 36 hours, a rise in S100B or elevated GFAP flagged concussion with 100% specificity but low sensitivity (52% combined).
Clinical Limitations of Oral Contraceptives in the Management of Functional Hypothalamic Amenorrhea in Female Athletes
This review examined whether birth control pills are a good way to protect bone health in female athletes who have lost their periods due to low energy availability (functional hypothalamic amenorrhea). It reports that the pill creates a withdrawal bleed without actually restoring normal hormonal function, which can hide an ongoing energy deficit, and that oral estrogen may lower IGF-1 and blunt bone benefits, whereas transdermal (patch) estradiol avoids liver first-pass metabolism and preserves IGF-1.
Effect Of Fatigue Mitigation On Kicking Precision During Penalty Shootout In Soccer
Researchers tested whether refuelling during a match protects penalty-kick accuracy: 20 elite young male players played 120 minutes, with one group given a rice-stew-fish meal (4 g/kg body mass) plus a glucose-fructose electrolyte drink (1.2 g/kg) and the other not. The fed group kept higher blood glucose, reported less general fatigue, and shot more accurately after extra time, while the unfed control group's kicking precision dropped significantly.
Preferences of Female Triathletes and Their Coaches for Education on REDs: A Qualitative Study
Researchers interviewed 12 female triathletes and 8 coaches about how they learn about Relative Energy Deficiency in Sport (REDs) and what education formats they prefer. Both groups were keen to learn more, but the sport's ingrained 'leaner is faster' culture and reluctance to change training habits were seen as barriers; participants favoured podcasts mixing expert content with real athletes' stories.
Gut microbiome and functional adaptations to paleo and rational diets in professional athletes: a pilot study
Ten professional male handball players were randomly assigned to eat either a Paleo diet or a conventional ("rational") diet of equal calories for 8 weeks, with stool samples analyzed at the start, 4 weeks and 8 weeks to track gut bacteria. Neither diet substantially changed the core gut microbiome, though the rational diet produced some specific bacterial and functional shifts; the Paleo diet was lower in carbs and higher in (mostly unsaturated) fats, and both diets fell short on vitamin D, with the Paleo group also low in calcium.
Carbon monoxide and other “tricks” in sports: does the winner take it all?
This is an opinion piece, not an experiment: it uses the trend of athletes repeatedly inhaling carbon monoxide (and using simulated-altitude hypoxia) as an example of risky shortcuts chased in elite sport. The author notes CO inhalation has been banned by cycling's governing body and WADA over safety concerns, that its performance benefits are unproven and possibly offset by inflammation and toxicity, and argues that lasting success comes from years of consistent, evidence-based training rather than tricks.
A common WBGT limit activates unequally across Grand Slam tennis venues because dry heat suppresses the wet-bulb term
Researchers used a decade of hourly weather data to calculate wet-bulb globe temperature (WBGT) at the four tennis Grand Slam venues and check whether the same WBGT heat-policy thresholds get triggered equally. They found they don't: the very hot but dry Australian Open never hit the suspension threshold despite air temperatures up to 44 °C, while the humid US Open came closest, and at matched air temperatures (33–37 °C) WBGT ran about 3.2 °C higher in New York than in Melbourne.
Run Smart, Run Strong: Exploring the Role of Physiotherapy in Running Load Management and Injury Prevention Among Recreational Runners
This narrative review pulled together six randomized trials on recreational runners to see whether physiotherapy-style exercise and smarter training-load management reduce running injuries and improve performance. It reported that a multi-component exercise programme cut overall and overuse running injuries, HIIT and plyometrics improved power, sprint speed and agility, while isolated hip/core or ankle/foot drills produced only small biomechanical changes with no clear clinical benefit.
Implementation Challenges and Enablers of Wearable Health Technologies in Physiotherapy Among English-Speaking Participants in India: A Qualitative Study
Researchers surveyed 62 practicing physiotherapists in India (via an English-language online questionnaire) about what helps or hinders using wearable health devices like activity and movement trackers in clinical practice. Therapists saw real potential for wearables to improve care and personalise treatment, but flagged limited time, lack of training, poor market access, data privacy and reliability concerns, and high cost as the main barriers.
Auditory-cued terminal knee extension enhances vastus medialis motor unit function in the early phase following ACL reconstruction: a randomized controlled trial
Researchers tested whether adding a rhythmic auditory cue (like a beep to time each rep) to terminal knee extension exercises changed inner-quad (vastus medialis) nerve-muscle activity in people two weeks after ACL reconstruction. In the 20 participants analyzed, the cued group showed significantly bigger increases in motor unit action potential size and muscle activity, plus a rise in firing rate, while the uncued group did not — though this was only a single session with immediate measurements.
Predicting athletic performance in track and field athletes based on wearable physiological and psychological indicators: an interpretable machine learning study
Researchers tracked 132 track-and-field athletes for about 14 weeks, using wearable data (heart rate variability, resting heart rate, sleep, training load) plus psychological measures (anxiety, self-efficacy) to predict how each athlete's performance would change the following week. A machine-learning model combining both types of data predicted weekly performance change better than physiological monitoring alone, and psychological readiness—especially self-efficacy—mattered most for technical events, though much of the model's accuracy came simply from knowing an athlete's competitive level.
CDE-Driven Time-Series Analysis of Training Load and Injury Risk Prediction for Football Players
Researchers built a computer model that combines wearable-sensor data from professional footballers \u2014 acceleration, heart rate, speed, distance and recovery markers \u2014 with machine learning to track training load over time and estimate injury risk. Tested on long-term training data from pro players, the system reportedly predicted injury risk accurately and performed consistently across different training load levels.
Improvement of Sports Training Efficiency Driven by Artificial Intelligence Practice of Monitoring and Dynamic Adjustment of Training Load through Multimodal Physiological Data Fusion
This paper proposes an AI system that combines several types of physiological sensor data (rather than a single metric like heart rate) to estimate an athlete's training load in real time and automatically adjust the training plan. The authors report that their experiments showed more accurate load assessment, better performance, faster recovery, and fewer injuries, though the abstract gives no specific numbers, athlete details, or comparison conditions.
Altered kinematics and muscle activities during half squats in people with ankle sprain history
Researchers compared 10 physically active people who had recovered well from an ankle sprain ("copers") with 10 people who had never sprained an ankle, measuring joint angles and muscle activity during half squats and walking. During half squats, the copers showed less thigh rotation, more foot angle, and lower activity in the hamstring, quadriceps, and shin muscles, while walking showed almost no differences between groups.
“Happiness because I could play again”: professional mother footballers’ experiences of pregnancy and postpartum
Researchers interviewed nine professional footballers who had children, asking how they handled pregnancy and their return to play afterwards. Four themes emerged: stepping away from play is highly individual, returning requires gradually rebuilding strength, progress often comes with setbacks, and while support has improved there is still room to grow.
Objective Return-to-Sport (RTS) Decision Frameworks for Adolescent Shoulder and Elbow Injuries: Tests, Thresholds and Exercise Targets
This paper discusses objective frameworks for deciding when adolescent athletes can safely return to sport after shoulder and elbow injuries, including specific tests, pass/fail thresholds and exercise targets. No abstract was available, so the actual findings and recommendations can't be summarized here.
Optimization of Textile Material Properties for Sports Protection Needs and Analysis of Design Compatibility for Athletic Protective Gear
This engineering paper looks at how to match textile material properties (impact absorption, stretch recovery, breathability, abrasion resistance) to the protective needs of different sports, using injury data and user feedback from six sport scenarios. It proposes a framework linking protection requirements to material optimization and gear design, but the abstract reports no tested performance results.
Influence of Isokinetic Muscle Strength Training Combined With Early Functional Exercise on Joint Function After Knee Cruciate Ligament Reconstruction
Researchers looked back at 252 matched patients recovering from knee cruciate ligament (ACL/PCL) reconstruction, comparing those who did early functional rehab alone with those who added isokinetic strength training starting 4 weeks after surgery. The combined group scored higher on knee function questionnaires (IKDC and KOOS) at 8, 12 and 24 weeks, and by 24 weeks also had greater range of motion and stronger knee extensors and flexors.
Influence of Aerobics Training on Physical Health: The Auxiliary Effect of Sportswear Design on Cardiopulmonary Function and Sports Performance
Researchers put 20 female aerobics athletes through 8 weeks of training, with one group wearing gradient compression sportswear and the other ordinary cotton kit. The compression group showed bigger gains in VO2max (13.4% more) and lactate threshold (14.4% higher), used 10.6% less energy, had 33.3% less muscle vibration, and reported less perceived exertion and better thermal comfort.
Endocrine markers of energy deficiency and within-day energy balance metrics in elite athletes
Researchers assessed 43 Swedish national-team athletes for Relative Energy Deficiency in Sport (REDs) using body composition scans, resting metabolic rate, blood markers, questionnaires and 4-day food/energy tracking. Over half (53.5%) were classified with REDs — more often women — and these athletes had higher cortisol, lower resting metabolic rate ratio, lower energy intake and availability, and spent more time in energy deficit during the day; similar patterns showed up in half the 'control' athletes too, suggesting a continuum rather than clear-cut categories.
DA PREVENÇÃO AO RETORNO AO ESPORTE: UMA REVISÃO DE LITERATURA INTEGRATIVA SOBRE CONCUSSÃO EM ATLETAS JOVENS
This review pooled 25 studies (2021-2025) on sport-related concussion in athletes aged 5-21, covering prevention, rehab, return to play, and biological monitoring. It reports that supervised early aerobic exercise sped up symptom recovery, neuromuscular training cut new sports injuries by 52%, psychosocial factors like anxiety and school load affected recovery, and past concussions were linked to higher depression and suicidal ideation risk; blood markers (GFAP, UCH-L1, NfL, t-tau) and retinal markers showed promise for objective monitoring.
Comparative effects of different sport psychology interventions on anxiety in competitive athletes: a Bayesian network meta-analysis
Researchers pooled 24 randomized trials to test whether sport psychology interventions reduce anxiety in competitive athletes and to rank which approaches work best. Overall the interventions produced a moderate-to-large anxiety reduction versus control, with cognitive-behavioral therapy, arousal regulation, and mindfulness/acceptance methods all beating passive control and CBT most likely to rank first; effects were largest when training was delivered during the regular training period rather than right before competition.
<b>MAGNÉSIO E DESEMPENHO FÍSICO EM ATLETAS: UMA REVISÃO INTEGRATIVA</b>
This integrative review pooled 6 studies (from 175 initially found in PubMed, BVS and Cochrane) on whether magnesium intake or supplementation improves athletes' health and physical performance. It found that while supplementation reliably raises magnesium levels in the body, performance benefits were inconsistent in people who weren't already deficient "" gains seemed to come from correcting a nutritional shortfall rather than boosting performance directly.
Machine learning based ECG analysis with data augmentation for fatigue status detection in elderly individuals
Researchers built a cheap, portable ECG sensor (AD8232 plus ESP32 chip) and recorded 6,304 heart-signal segments from 100 older adults to see whether machine learning could spot fatigue. After boosting the data with augmentation techniques, a GRU neural network detected fatigue with 97.96% accuracy, 0.99 AUC and a 0.98 F1-score, beating LSTM, RNN, random forest and logistic regression models.
Inspirations of traditional Chinese martial arts Qinggong training for parkour
This is a conceptual paper, not an experiment: researchers compared historical Chinese Qinggong training texts with modern parkour coaching and movement-science literature to see where the two overlap. They found shared themes like movement continuity, soft landings, balancing on narrow supports, and gradual difficulty progression, and proposed five coaching ideas (e.g., using landing sound as feedback, varied fall drills, altering surfaces and visual conditions, monitored load progressions, and staged task sequencing) plus a foundation–specialization–practice framework — all untested hypotheses at this point.
The Effect of Caffeine Mouth Rinsing on Shooting Performance in Bocce Volo Players: A Randomized, Double-Blind, Placebo-Controlled, Crossover Study
Twenty-four professional male bocce volo players each completed shooting tests under three conditions in random order: swishing a caffeine solution in the mouth, a placebo rinse, and no rinse. Shooting accuracy (both points and accuracy percentage) was significantly higher with the caffeine mouth rinse than with placebo or no rinse.
The impact of an 8-week music listening and sports games programme on athletic mental energy and toughness in Chinese secondary school students
Researchers randomly assigned 200 Chinese secondary school students to 8 weeks of music listening only, sports games only, both combined, or regular exercise, then measured mental energy, mental toughness, blood oxygen, and the stress hormone cortisol. All intervention groups gained mental toughness and lowered cortisol, but combining music with sports games produced the biggest boosts in mental energy and the largest cortisol drop, with no differences between genders.
Pregnancy and postpartum experiences of elite para athletes: a cross-sectional survey
Researchers surveyed 25 elite Para athletes who had been pregnant, asking about their health, training changes, and return to sport. Pregnancy and newborn outcomes were generally good, but fewer than half received any advice about exercising during pregnancy even though most modified their training; median returns were 6 weeks to exercise, 14 to training, and 20 to competition.
Football Coaching, Academic Learning Time, and Student Success
Researchers interviewed student footballers, coaches, sports administrators and academic staff at several Ghanaian universities to understand how football coaching demands affect study time and academic success. They found football built discipline, time management, resilience and social connection, but also caused missed lectures, late assignments, fatigue and less study time in season, with flexible scheduling, mentoring and coach-lecturer cooperation helping students cope.
Effect of Extensive Interval Training on Endurance Performance in Long-Distance Runners
Researchers had 15 male long-distance runners (aged 20-27) complete a program of extensive interval training, testing their endurance before and after with the 12-minute Cooper run test. Average distance covered rose from about 1,835 m to 1,929 m, a statistically significant improvement in endurance.
Creatine Monohydrate in Non-Athletic Adults: Are Health Benefits Independent of Exercise? A Critical Review
This review sifted through human research on creatine supplementation in non-athletic adults to see which health benefits show up on their own versus only alongside exercise. It reports that muscle and strength gains were most consistent in older adults who also did resistance training, while creatine alone produced small or inconsistent effects; cognitive benefits appeared without exercise but were modest and variable, and evidence for blood sugar, vascular, inflammation, and chronic-disease outcomes was preliminary. Standard doses were generally well tolerated, though serum creatinine can rise without indicating kidney problems.
Epidemiology of Musculoskeletal Injuries In Female Wrestling
This review pooled ten studies to map how often female wrestlers get hurt and where. Injury rates ranged from about 4.3 per 1000 training hours to 16.8 per 1000 athlete-exposures, with arms and legs accounting for most injuries (shoulder/upper arm leading among extremity injuries); upper-limb injuries dominated in youth wrestlers while lower-limb injuries dominated in elite athletes, and most injuries were mild joint or muscle problems.
Muscle power, menarche, estradiol, and lean mass in young female volleyball athletes: a cross-sectional study
Researchers compared 32 young female volleyball players (average age ~11) who had or had not started menstruating, measuring body composition, estradiol levels, medicine ball throw power, and vertical jump height. Girls who had reached menarche had higher estradiol and greater upper- and lower-body power; jump power tracked with estradiol levels, while throwing power tracked mainly with lean muscle mass.
The relationship between post-occlusive reactive hyperemia and the level of training and lifestyle in young adults.
Researchers compared blood flow in the smallest vessels (microcirculation) of 60 people \u2014 marathon runners, bodybuilders, MMA athletes, and non-athletes \u2014 by briefly cutting off blood flow to a limb with a cuff and measuring how quickly flow rebounded. The only measure that differed between groups was time to peak blood flow: MMA athletes rebounded fastest (about 21 seconds) versus roughly 38\u201348 seconds in the other groups, while resting flow, peak flow, and recovery time were similar across groups.
Are Lower Limb Running Kinematics Altered 48 Hours After a Personal Best Half-Marathon Attempt? A Within-Subject Repeated-Measures Study.
Researchers tested 15 trained runners before and 48 hours after an all-out half-marathon, measuring 3D running form, soreness, and perceived recovery. Runners still felt less recovered and had more thigh tenderness, but their running mechanics were essentially unchanged apart from slightly longer ground contact time and a bit more ankle rotation.
Current Evidence and Practical Considerations for Adaptogen Use in Exercise Recovery, Training Adaptation, and Exercise Performance in Athletes: A Narrative Review.
This narrative review gathered existing research on "adaptogen" supplements — ashwagandha, ginseng (Panax), Rhodiola rosea, and Cordyceps — and their potential effects on recovery, training adaptation, and performance in trained athletes. The authors report that a small number of varied studies hint at some benefits, with ashwagandha having the most consistent evidence, while the other three remain preliminary; overall the evidence is too thin and inconsistent to set dosing or efficacy recommendations, and female athletes are underrepresented.
Effects of Beetroot-Derived Nitrate Supplementation in Highly Trained and Elite Athletes: A Scoping Review of Randomized Controlled Trials on Performance, Recovery, and Physiological Outcomes.
This scoping review pooled 31 randomized controlled trials testing beetroot juice (a nitrate source) in highly trained and elite athletes, with doses of roughly 4-19.5 mmol nitrate per day taken from a single dose up to 15 days. Benefits showed up most often for cycling time trials, Yo-Yo intermittent recovery tests, anaerobic power, neuromuscular performance, exercise tolerance and recovery, while results for endurance performance, sport skills, oxygen use and perceived effort were inconsistent even though blood nitrate levels clearly rose.
Nutritional Strategies for Recovery-Adaptation Coupling After Exercise: From Muscle Damage to Performance Remodeling.
This narrative review proposes a framework called recovery-adaptation coupling (RAC), which tries to balance recovering fast for the next session against blunting the biological signals that drive long-term training adaptation. Reviewing 130 papers, the authors found the strongest applied support for adequate energy intake, protein spread through the day, carbohydrate refueling when the next session is soon, and individualized fluid and sodium replacement, while polyphenols, curcumin, omega-3s and creatine were context-dependent and collagen/gelatin evidence was only mechanistic or pilot-level; the RAC framework itself is unvalidated.
Integrating mechanical, physiological, and muscle oxygenation responses during field-based tethered repeated-sprint exercise in male professional soccer players.
Ten professional soccer players did six all-out 35-m tethered sprints with 10-second rests while researchers tracked force, velocity, power, and muscle oxygen levels in the thigh (vastus lateralis) and arm (biceps brachii). The thigh muscle showed much greater oxygen depletion than the arm, oxygen levels only related to sprint performance in the last two sprints, and thigh oxygenation was linked to how much speed players lost across sprints; post-exercise heart rate and blood lactate showed no relationship with muscle oxygenation.
Multistrain Probiotic Supplementation Combined with a Standardized Diet Did Not Significantly Affect Exercise Performance or Inflammatory Responses in Male Endurance Runners: A Randomized Controlled Trial.
Researchers gave 27 trained male distance runners either a multistrain probiotic or a placebo for four weeks while everyone ate the same standardized, calorie-matched meal-box diet, then tested aerobic capacity (VO2peak), a 30-second Wingate sprint, and blood markers of inflammation and muscle damage. The probiotic produced no significant benefit over placebo for aerobic or anaerobic performance, lactate, creatine kinase, or IL-6 and TNF-\u03b1 responses, though exercise itself reliably raised those markers in both groups.
Effects of post-exercise compression garments on subsequent endurance performance and delayed-onset muscle soreness in endurance athletes: a systematic review and meta-analysis.
Researchers pooled nine small controlled trials (158 endurance athletes total) testing whether wearing compression garments after exercise reduces muscle soreness and improves later endurance performance. Soreness scores leaned slightly in favor of compression at both the immediate and ~24-hour marks, but the results were statistically inconclusive, and performance effects couldn't be pooled at all — overall certainty was rated very low.
Delaying task failure in high-intensity exercise: a Pi-afferent-effort framework for targeted sports nutrition.
This is a theory paper (not an experiment) proposing that fatigue during hard exercise comes from several limits converging at once: inorganic phosphate buildup impairing muscle contraction, acid-base disturbance, nerve feedback from the muscles restricting motor output, and how effort and pain feel. The authors then map common supplements onto whichever limit each is most likely to influence, e.g. nitrate to lower the ATP cost of work, creatine to support phosphocreatine and between-set recovery, beta-alanine and sodium bicarbonate for acid-base buffering, caffeine for effort perception and pain tolerance, and carbohydrate for prolonged or repeated hard efforts.
The relationship between exercise commitment and psychological detachment from academic activities among Chinese college students: the chain mediating roles of self-identity and sense of belonging.
Researchers surveyed 850 Chinese college students to see how committed they were to exercise and how well they mentally switched off from schoolwork during downtime, also measuring self-identity and sense of belonging. Students with stronger exercise commitment reported less psychological detachment from academic thoughts, though the study was cross-sectional and self-reported, so it can't show cause and effect.
Acute and Short-Term Neuromuscular and Perceptual Responses to Isometric vs. Dynamic Strength Training in Youth Soccer Players: A Randomized Crossover Trial.
Twenty-one teenage male soccer players did two matched strength sessions a week apart "and deadlifts/squats at 75-80% of 1RM (dynamic) versus maximal 4-second isometric squats and mid-thigh pulls"and researchers tracked jump height, bar speed, soreness and fatigue at 30 minutes and 24 hours afterwards. Jump height was higher 30 minutes after the isometric session than after the dynamic session, suggesting heavy dynamic lifting causes greater short-term neuromuscular fatigue than isometric work.
Dynamic proprioceptive training improves functional recovery in sprinters with patellofemoral pain: A randomized trial.
This randomized trial put 60 recreational sprinters with knee (patellofemoral) pain into either a dynamic proprioceptive/balance-based training program or a conventional strengthening program, both supervised three times a week for 12 weeks, and tracked pain, dynamic balance, hop distance, and limb symmetry. The authors concluded that the proprioceptive training group achieved greater overall functional recovery than the strengthening group, though the abstract's results section is cut off and gives no specific numbers.
From Mechanisms to Practice: Gut Microbiome-Based Strategies for Supporting Recovery in Elite Athletes.
This review looks at how gut bacteria might influence athletic recovery, through effects on inflammation, oxidative stress, sleep, and the production of vitamins and other useful compounds. It reports that athletes tend to have gut microbes with greater capacity to make beneficial nutrients, that endurance and strength athletes show different microbial profiles, and that small trials of multi-strain Lactobacillus and Bifidobacterium probiotics have reported lower inflammatory markers, better oxidative stress markers, and improved sleep quality — though the authors stress the evidence is still preliminary and needs larger prospective studies.
Dietary Microplastic Exposure in Athletes: Implications for Metabolism, Gut Health, and Performance.
This narrative review asked whether microplastics swallowed through food, drinks, packaged sports products and supplements could matter for athletes, who tend to eat and drink a lot. It reports that lab, animal and food-contamination studies suggest plastics could disturb the gut barrier, microbiome, inflammation, oxidative stress, hormones and metabolism, but no direct studies exist in athletes, so effects on recovery, adaptation and performance remain plausible yet unproven.
Post-exercise glycaemic rebound characterises exploratory glucose-lactate response patterns during incremental rowing in elite male rowers: a cross-sectional study.
Researchers measured both blood glucose and lactate in 26 elite male rowers during a step-by-step incremental rowing test and in the first minutes of recovery. They found two distinct glucose response patterns — one 'coupled' with lactate and one dominated by a glucose spike shortly after exercise — that lactate measurements alone did not reveal, though the authors stress the practical meaning of these patterns is unknown.
Effectiveness of intermittent hypoxia on muscle recovery in rats: A systematic review.
Researchers pooled five animal (rat) studies testing whether intermittent hypobaric hypoxia (simulated altitude of about 4,000-4,500 m for a few hours a day), cold exposure (~4°C), or combinations with light exercise help muscle recover after fatigue or injury. The altitude exposure alone improved muscle regeneration, reduced scar tissue, and boosted contractile force versus passive rest, and with light aerobic exercise it raised markers of blood-vessel growth and repair; cold exposure boosted mitochondrial proteins but also raised oxidative stress, and study quality was rated as having 'some concerns.'
Sleep and Athletic Performance: A Multidimensional Review of Physiological and Molecular Mechanisms
Multidimensional review of the physiological and molecular mechanisms linking sleep quality and duration to athletic performance and recovery.
Effects of sleep deprivation on sports performance and perceived exertion in athletes and non-athletes: a systematic review and meta-analysis
Systematic review and meta-analysis quantifying how acute sleep deprivation affects sports performance and perceived exertion.
Short-term creatine supplementation enhances strength, reduces fatigue, and accelerates recovery in resistance-trained athletes: a double-blind, randomized, crossover trial
Double-blind, randomized crossover trial testing whether short-term creatine loading affects strength, fatigue, and recovery in resistance-trained athletes.