Research in Sports Medicine最新文献

{"title":"Effects of sodium bicarbonate on 200 m time trial performance and physiological responses in swimmers: a systematic review and meta-analysis of randomized controlled trials.","authors":"Dongxiang Huang, Xiaobing Wang, Hideki Takagi, Zhongzheng Wang, Chen Wang, Ling Yang, Bo Huang","doi":"10.1080/15438627.2025.2456630","DOIUrl":"10.1080/15438627.2025.2456630","url":null,"abstract":"<p><p>This systematic review and meta-analysis evaluated the effects of sodium bicarbonate (NaHCO₃) supplementation on 200 m time trial performance and physiological responses in swimmers, following PRISMA guidelines. A comprehensive search across five databases identified eligible randomized controlled trials comparing NaHCO₃ with placebo. Outcomes were 200 m time, blood bicarbonate, blood lactate, and blood pH. Results showed significant increases in blood bicarbonate (SMD = 1.09, 95% CI = 0.38 to 1.79, P<0.01), blood lactate (SMD = 0.76, 95% CI = 0.24 to 1.29, P<0.01) and blood pH (SMD = 1.02, 95% CI = 0.33 to 1.71, P<0.01), but no effect on 200 m time (SMD = 0.26, 95% CI -0.58 to 1.10). These findings suggest NaHCO₃ enhances certain physiological responses but does not improve 200 m performance, though data limitations require cautious interpretation.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"291-307"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143024333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The relationship between chronic ankle instability and sleep behaviour.","authors":"Colleen M Vogel, Ji Yeon Choi, Michaela A Schenkelberg, Brian A Knarr, Adam B Rosen","doi":"10.1080/15438627.2025.2456628","DOIUrl":"10.1080/15438627.2025.2456628","url":null,"abstract":"<p><p>Chronic Ankle Instability (CAI) is a condition characterized by giving-way episodes, instability and recurrent ankle sprains. Poor sleep can increase the risk of musculoskeletal injury and sleep is known to be an important aspect of injury recovery. However, the effect sleep has on those with CAI as well as its risk for recurrent episodes of giving-way remains unclear. The purpose of this study was to examine the relationship between sleep behaviour and giving-way episodes associated with CAI. Twenty-five participants with CAI (11 M/14 F, age = 22.9 ± 2.7 years, height = 171.9 ± 8.9 cm, mass = 76.7 ± 15.9 kg) were included in this study. All participants completed baseline patient-reported outcome measures and wore a fitness tracker that measured sleep for 1 month. Seven participants had a giving-way (GW, no-giving way = NWG) episode. Those with a giving-way episode spent significantly less time asleep (GW = 325.3 ± 63.2 min, NGW = 413.9 ± 49.5 min, <i>p</i> < 0.001, d = 1.659), less time in bed (GW = 384.9 ± 79.0 min, NGW = 473.1 ± 55.0 min, <i>p</i> = 0.002, d = 1.419), less minutes in REM (GW = 59.9 ± 19.9 min, NGW = 93.5 ± 25.4 min, <i>p</i> = 0.002, d = 1.400) and less minutes in light sleep (GW = 197.6 ± 51.5 min, NGW = 250.2 ± 34.4 min, <i>p</i> = 0.003, d = 1.328) compared to those without. In conclusion, this study shows that individuals with CAI who suffered a giving-way episode had poorer sleep behaviour the night before an episode.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"280-290"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143010682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploration of patellofemoral pain and musculoskeletal characteristics in pubertal female dancers: a 12-month follow-up.","authors":"Nili Steinberg, Yael Sitton, Michal Shenhar, Shilo Kramer, Yahav Levi, Itzhak Siev-Ner","doi":"10.1080/15438627.2025.2467409","DOIUrl":"10.1080/15438627.2025.2467409","url":null,"abstract":"<p><p>The aim of the present study was to examine the prevalence and associated musculoskeletal features of patellofemoral-pain (PFP) in pubertal female dancers at baseline and 12-months later. Thirty-four female dancers (aged 11.9 ± 2.5 yrs, with Tanner stages 3-5 of 68.8% for breasts and 74.2% for pubic at the baseline) were assessed for anthropometric measurements, tibial bone strength, joint ROM, patellar-tendon structure, muscle strength, and were clinically examined by an orthopaedic physician for PFP. At the baseline, 50% suffered from PFP. At the follow-up, 26.5% remained healthy without PFP; 20.6% recovered; 23.5% developed PFP; and 29.4% remained with PFP. <i>PFP*time interaction</i> was found for tibial bone strength (F_(3,30) = 16.534, <i>p</i> < .001). In tendon structure (echo-type III), joint ROM (<i>en-pointe</i> and hip external rotation) and muscle strength (knee flexors, knee extensors and hip abductors), Kruskal -Wallis test showed significantly different improvement/deterioration (from pre to post) between healthy-dancers, recovered-dancers, developed-PFP dancers and dancers that remained with PFP (<i>p</i> < 0.05). A relatively high prevalence of dancers suffered from PFP at both baseline and follow-up, with few having recovered. In dancers that <i>developed PFP</i> and those that <i>remained with PFP</i>, reduced tibial bone strength, alternated tendon structure, increased joint ROM, and reduced muscle strength were seen, compared to their <i>healthy</i> or <i>recovered</i> counterparts.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"368-384"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143441886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of one-week New Zealand blackcurrant extract on rowing performance and cognitive function in National team male rowers.","authors":"Alireza Naderi, Mohammad Ali Gharaat, Erfan Berjisian, Mark E T Willems, Shima Mojtahedi, Amirali Goli, Leila Dehghankar, Majid S Koozehchian","doi":"10.1080/15438627.2025.2455971","DOIUrl":"10.1080/15438627.2025.2455971","url":null,"abstract":"<p><p>This research investigated the impact of New Zealand blackcurrant (NZBC) on 2000-meter rowing ergometer performance and cognitive abilities. Nine trained male rowers from Iran's national team participated in a double-blind, placebo-controlled crossover study, undergoing three sessions with NZBC (600 mg∙day-1), placebo (PL), and control (CL) treatments over seven days, followed by a 14-day washout period. Participants completed a 2000-meter ergometer test provided self-reported ratings of perceived exertion (RPE) and completed a cognitive function assessment five minutes following the rowing exercise. Findings indicated no significant ergogenic benefits from NZBC supplementation (420 ± 12 s) compared to PL (424 ± 15 s) and CL (423 ± 14 s), despite showing a minimal effect size (Cohen's d = 0.23). Six subjects had negligible enhancements in performance. No changes were seen in cognitive function or RPE (p > 0.05). A seven-day regimen of NZBC did not enhance rowing performance, cognitive function, or RPE.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"266-279"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143047631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rehabilitation practices of Turkish physiotherapists following anterior cruciate ligament reconstruction: an online survey.","authors":"Fatih Eren Oluç, Elif Turgut, Gülcan Harput","doi":"10.1080/15438627.2025.2462906","DOIUrl":"10.1080/15438627.2025.2462906","url":null,"abstract":"<p><p>We aimed to investigate the anterior cruciate ligament reconstruction (ACL-R) rehabilitation and return-to-sport (RTS) practices of Turkish physiotherapists. An online survey with 25 questions on ACL-R rehabilitation and RTS practices was created on Google Forms and distributed to physiotherapists via social media. Two-hundred sixty-four physiotherapists' responses were analysed. About 62.3% of therapists treated patients prior to ACL-R. Open-kinetic-chain (OKC) exercises frequently started at 4-6 weeks post-operatively (34.8%). Return-to-running cleared at 3-4 months (37%) and RTS cleared at 6-9 months (40.2%) mostly. Manual muscle tests were used by 58.4% of physiotherapists to evaluate knee strength before RTS. About 46.7% of physiotherapists did not assess psychological readiness for RTS. Physiotherapists with a bachelor's degree cleared patients for RTS earlier (<9 months) than those with postgraduate degrees (<i>p</i> = 0.001) but used patient-reported outcome measures (PROMs) more frequently (<i>p</i> = 0.010). Physiotherapists with over 5 years of experience used PROMs and psychological readiness scales more frequently (<i>p</i> = 0.035, <i>p</i> = 0.001) but also cleared patients for RTS earlier (<i>p</i> = 0.014). This study revealed that physiotherapist rehabilitation practices after ACL-R are not fully consistent with the current best evidence. This inconsistency in rehabilitation practices may lead to suboptimal patient outcomes after ACL-R. Encouraging physiotherapists to incorporate the latest evidence into practice might lead to better rehabilitation outcomes.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"319-333"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strength and jumping performance in youth athletes: do sport specialization and age categories affect strength asymmetry?","authors":"Maros Kalata, Craig Anthony Williams, Ferdia Fallon Verbruggen, Mark De Ste Croix, Michal Lehnert, Frantisek Zahalka, Tomas Maly","doi":"10.1080/15438627.2025.2465544","DOIUrl":"10.1080/15438627.2025.2465544","url":null,"abstract":"<p><strong>Methods: </strong>A total of 181 young male athletes were recruited and categorized according to sport specialization (soccer or athletics) and age categories (U15, U17 or U19). Isokinetic strength was measured as peak muscle torque (PT), normalized to body mass, for the knee extensors (PT_KE) and knee flexors (PT_KF) during concentric muscle contraction at three angular velocities (60^°s^-1. 180^°s^-1. 300^°s^-1). Vertical jump performance was measured during a countermovement jump with arms fixed (CMJ) and a squat jump (SJ).</p><p><strong>Results: </strong>Significantly higher values of bilateral asymmetry (BA) of PT_KF for angular velocity 60°s^-1 and 180°s^-1 were found in the athletics group compared to the soccer group in the U17 category (14.40% to 16.02% vs 9.07% to 10.45%). Significantly higher values of BA for angular velocity 300°s^-1 for both PT_KE and PT_KF were found in the U15 compared to U19 category. Significantly higher values of H:Q ratio at all angular velocity except for the non-dominant leg in the highest angular velocity in soccer compared to the athletes in the U17 category were found. Soccer players exhibited significantly higher values of PT_KF compared to those in athletics and jump height in the U17 category.</p><p><strong>Conclusion: </strong>Soccer players displayed increased isokinetic strength and more balanced BA compared to the athletics group. Physiotherapists and strength coaches should focus on younger age groups, especially U15, due to the higher incidence of BA and lower relative strength regardless of specialization.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"334-351"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143426060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hip and knee muscles co-activation ratio during hip-focused exercises: a multichannel surface electromyography study.","authors":"Hadi Akbari, Bahram Sheikhi","doi":"10.1080/15438627.2024.2442742","DOIUrl":"10.1080/15438627.2024.2442742","url":null,"abstract":"<p><p>This study aimed to evaluate the muscle activation ratio of hip and knee during hip-focused exercises. Eleven active university students performed 13 hip-focused exercises frequently used in the treatment of knee disorders. The average sEMG amplitude of tensor fasciae latae (TFL), gluteus medius (GMed), gluteus maximus (GMax), adductor longus (AL), vastus medialis (VM), vastus lateralis (VL), and GMed/AL, GMax/AL, and VL/VM ratios were determined. Repeated-measures analyses of variance were performed to determine if there were differences in muscle activation while performing each of the 13 exercises. Sidelying clam-shell had the highest GMax/AL ratio of all the exercises examined. The hip hike exercise (5.36) had the highest GMed/AL ratio. The VL/VM ratio ranged from 0.77 to 1.16. Based on these results, sidelying clam-shell had the highest GMax/AL ratio. The hip hike exercise had a higher GMed/AL ratio compared to other hip-focused exercises. Additionally, forward lunge, squat, and single-leg squat with resistance band around the knee had the highest activity VL/VM ratio among exercises.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"241-253"},"PeriodicalIF":1.9,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142839124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Do floating toes relate with the ability to perform the deep squat test among baseball players with throwing injury?","authors":"Hideaki Nagamoto, Rei Kimura, Eri Hata, Yoshiyasu Yamada, Nobuyuki Yamamoto, Toshimi Aizawa, Tsukasa Kumai","doi":"10.1080/15438627.2024.2441352","DOIUrl":"10.1080/15438627.2024.2441352","url":null,"abstract":"<p><p>Relationship between ability to perform the deep squat test (DST) and floating toes among baseball players with disabled throwing shoulder/elbow was retrospectively investigated. Players performed the DST by fully squatting while having their arms crossed in front of their chest without lifting the heel off the floor or falling backwards. Floating toes were evaluated if all the toes were in contact with the mat or not. The relationship between ability to perform the DST and prevalence of floating toes was statistically analysed. Sixty-three players (69.2%) were unable to perform the DST. Floating toes were observed in 74 players (81.3%). Players with inability to perform the DST had significantly higher prevalence of floating toes (58 players, 92.1%), compared with those who were able to perform the test (16 players, 57.1%) (<i>p</i> < 0.001). Floating toes may relate with inability to perform the DST among baseball players with disabled throwing shoulder/elbow.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"212-223"},"PeriodicalIF":1.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142847534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of a 40-min nap on performance following evening exercise before, during, and after Ramadan fasting.","authors":"Hsen Hsouna, Omar Boukhris, Achraf Ammar, Khaled Trabelsi, Cain C T Clark, Raouf Abdessalem, Nicola Luigi Bragazzi, Haitham Jahrami, Matthew Driller, Hamdi Chtourou","doi":"10.1080/15438627.2024.2442740","DOIUrl":"10.1080/15438627.2024.2442740","url":null,"abstract":"<p><p>This study examined the effect of a 40-min nap (N40) the day after a night session of the Loughborough Intermittent Shuttle Test (LIST), before, during and after Ramadan. In a randomized crossover design, fifteen male soccer players completed the LIST in the evening (2100h), followed by either a N40 or no nap (N0) the next day, at 1400h. Performance on the 5-m shuttle run test (5mSRT), digit cancellation test (DCT), and subjective measures (i.e., sleepiness, rating of perceived exertion, and muscle soreness) were assessed at 1700h. During Ramadan, 5mSRT and DCT performance decreased compared to before Ramadan in the N0 condition (p<0.05). However, N40 improved 5mSRT and DCT performance across all periods compared to N0 (p<0.05). In conclusion, a 40-min of nap opportunity is an effective strategy for improving physical and cognitive performance during and following Ramadan after a bout of exercise the previous night.    .</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"224-240"},"PeriodicalIF":1.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142897120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epidemiology of injuries and illnesses among female cricketers in Bangladesh's first-class cricket: a retrospective analysis (2015-2021).","authors":"Farjana Akter Boby, Subrina Sultana Shara","doi":"10.1080/15438627.2024.2440066","DOIUrl":"10.1080/15438627.2024.2440066","url":null,"abstract":"<p><p>This retrospective study aimed to examine the incidence, types, and patterns of injuries and illnesses among female cricketers in the first-class cricket of Bangladesh between 2015 and 2021. The study was conducted with 250 female cricket players aged 14-28 who had experienced injuries. Participants completed a structured questionnaire that gathered information on injury type, frequency, recurrence, treatment methods, and post-injury performance. Logistic regression analysis was employed to assess the relationship between injury risk and key variables, including playing position (batter, bowler, or fielder), weekly workload (hours spent in training/competition), and injury context (occurring during matches or practice). Descriptive statistics were used to summarize injury patterns and recovery outcomes, while odds ratios (OR) with 95% confidence intervals (CI) were calculated to identify significant predictors of injury risk. Of the participants, 75.2% experienced new injuries, while 24.8% reported chronic injuries. The most common injury sites were the knee/leg (24%) and shoulder (20%). Recurrence was high, with 56% experiencing 5-6 injury recurrences, and 68% reported multiple injuries over their careers. Physiotherapy was the primary treatment, used by 52% of participants, and 76% of players returned to competition post-injury. However, only 8% regained their pre-injury performance levels. Logistic regression revealed that bowlers had a significantly higher injury risk (OR = 2.12, <i>p</i> = 0.055), while high workloads (21+ hours/week) were also associated with increased injury risk (OR = 1.42, <i>p</i> = 0.112), though not statistically significant. The findings highlight the prevalence of injuries in female cricket, particularly in bowlers and those with high workloads. Physiotherapy was effective in promoting recovery, but a significant portion of athletes did not regain their pre-injury performance levels. Comprehensive injury prevention programs, tailored rehabilitation, and ongoing education on injury management are essential to mitigate risks and enhance player recovery.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":" ","pages":"195-211"},"PeriodicalIF":1.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}