{"title":"Link Between Ferritin, Vitamin D, Performance, and Eating Attitudes in Female Athletes.","authors":"Yuka Tsukahara, Suguru Torii, Yukiko Taniguchi, Torao Kusakabe, Hideki Murakami, Fumihiro Yamasawa, Takao Akama","doi":"10.1055/a-2421-6891","DOIUrl":"10.1055/a-2421-6891","url":null,"abstract":"<p><p>Iron and vitamin D deficiencies can affect athletes' health and performance. However, the epidemiology and associated risk factors remain unclear. Forty-three elite female athletics athletes (20.2±1.9 years) were included. A survey regarding the training schedule and Eating Attitudes Test-26, body composition, bone mineral density, and serum 25-hydroxyvitamin D (25(OH)D) and ferritin levels were assessed. Mean serum 25(OH)D and ferritin levels were 25.2±5.5 ng/mL and 29.0±13.2 ng/mL, respectively, and 83.7% and 41.9% of athletes had vitamin D and ferritin insufficiency, respectively. Serum 25(OH)D level was negatively correlated with the number of rest days per week (Coefficient,-6.19; 95% confidence interval [CI],-9.82--2.57; p=0.002), and serum ferritin level was negatively correlated with body mass index (Coefficient,-3.87; 95% CI,-7.57--0.16; p=0.041). Performance levels were positively correlated with serum vitamin D levels (Coefficients, 7.25; 95% CI, 0.25-14.25; p=0.043) and negatively correlated with EAT-26 scores (Coefficient,-7.30; 95% CI,-12.61--1.98; p=0.009) and body fat percentage (Coefficient,-13.26; 95% CI,-24.66--1.86; p=0.025). Vitamin D and ferritin insufficiencies are prevalent among Japanese female athletics athletes. Serum vitamin D level was related to performance level.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"182-188"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142346705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intensity and enjoyment of play-based HIIT in children and adolescents with obesity.","authors":"MortenBilde Simonsen, CharlotteNørkjær Eggertsen, JeppeBech Pedersen, Stine Christiansen, EsbenThyssen Vestergaard, Søren Hagstrøm, Ryan Godsk Larsen","doi":"10.1055/a-2456-4054","DOIUrl":"10.1055/a-2456-4054","url":null,"abstract":"<p><p>High-intensity interval training (HIIT) has been suggested as an effective treatment approach of childhood obesity. The objective of the present study was to examine intensity, enjoyment, and perceived exertion of a 4x4-minute play-based HIIT program for children and adolescents with obesity. 83 participants (42.2% girls, 12.3±1.5 years, 57.8% boys, 12.0±1.6 years) completed a 12-week intervention comprising three weekly sessions. After nine sessions (weeks 2, 6, and 11), participants rated perceived exertion (RPE) with a Borg scale and enjoyment of activities using the Physical Activity Enjoyment Scale (PACES). Heart rate (HR) was recorded to assess time spent in high- and moderate-intensity. Participants spent more time in high-intensity during strength-based (P=0.004) and running-based (P=0.007) activities compared to ball games, and more time was spent in moderate-intensity during ball games compared to strength-based (P=0.033) and running-based (P=0.028) activities. Overall, boys spent more time in moderate-intensity than girls (P=0.007). Participants rated RPE lower for ball games than for strength-based (P<0.001) and running-based (P<0.001) activities. Boys rated running-based activities more enjoyable than girls (P=0.021). Exercise intensity and RPE vary by activity in HIIT for children and adolescents with obesity. Ball games led to less high-intensity time and were seen as less exhausting. No differences in RPE or enjoyment were found over time.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"207-216"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julio Cesar da Costa, Cynthia Correa Lopes Barbosa, Andreia Pelegrini, Hélio Serassuelo Junior, Rossana Anelice Gomez-Campos, Rómulo Araujo Fernandes, Enio Ricardo Vaz Ronque
{"title":"Physical Activity and Sedentary Behavior on Bone Health in Adults: A Systematic Review.","authors":"Julio Cesar da Costa, Cynthia Correa Lopes Barbosa, Andreia Pelegrini, Hélio Serassuelo Junior, Rossana Anelice Gomez-Campos, Rómulo Araujo Fernandes, Enio Ricardo Vaz Ronque","doi":"10.1055/a-2461-3687","DOIUrl":"10.1055/a-2461-3687","url":null,"abstract":"<p><p>The objective was to analyze the longitudinal associations of physical activity (PA) and Sedentary behavior (SB) on bone health indicators (BHI) in healthy young adults. Articles were selected from five databases and 17 longitudinal studies were selected after meeting the inclusion and exclusion criteria. Among these, only one study assessed the association between childhood PA and adult BHI, the results showed no significant association between PA and BHI. Positive associations between adolescence and adulthood were observed between PA with bone mineral content and density and bone microarchitecture. In adulthood, the results were divergent; among the three studies located, two found a positive association. SB was negatively associated with bone mineral density and content from childhood to adulthood. However, from adolescence to adulthood, it was negatively associated with total tibia area but positively associated with trabecular thickness, cortical thickness, and cortical bone mineral. The evidence of the positive effect of PA and its intensities between adolescence and adulthood on BHI seems to be more consolidated, and it is still necessary to understand the role of intensities, volume of PA and SB in different periods of life with BHI in adulthood.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"164-171"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142754990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cognitive Effects of Heading in Professional Football: A Systematic Review.","authors":"Liam Patel, Julikram Tarafder, Flaminia Ronca","doi":"10.1055/a-2409-0323","DOIUrl":"10.1055/a-2409-0323","url":null,"abstract":"<p><p>Large cohort studies have reported that former professional football players have an increased risk of mortality from neurodegenerative disease. Due to emerging concerns regarding the safety of heading the technique is now banned for players under 12. The aim of this systematic review was to evaluate the association between heading exposure and cognitive function in professional football players. A search strategy was devised and entered into seven electronic databases: MEDLINE, Embase, Web of Science, PsycINFO, CENTRAL, SportDiscus and PEDro. The search identified 563 records. After screening records and applying the eligibility criteria, nine cross-sectional studies (n=925) were included in the review, investigating 452 current and 473 former players (859 males, 66 females). Six studies (n=595) reported evidence for an association between heading and impaired cognitive function, while three studies (n=330) reported no association. Diverse cognitive domains were investigated, which might underline the disparity in these results. The association between heading and cognitive function in professional football appears likely but remains inconclusive. Methodological heterogeneity and variability in the presentation of results limits the conclusions drawn. Prospective longitudinal studies using standardised methods, and including females, are required to provide evidence to support or refute an association.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"151-163"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11884919/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: Risk Assessment of FMS and YBT on Sports Injuries in Collegiate Athletes.","authors":"Mingyang Xie, Rui Zhang, Yuxi Gong","doi":"10.1055/a-2503-5739","DOIUrl":"10.1055/a-2503-5739","url":null,"abstract":"","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"e1"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143005294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chunyu Zhao, Congying Li, Ronghai Su, Lin Chen, Wei Wei, Meng Meng, Chen Chen
{"title":"Comparison of Different Methods on Post-Activation Performance Enhancement: A Meta-Analysis.","authors":"Chunyu Zhao, Congying Li, Ronghai Su, Lin Chen, Wei Wei, Meng Meng, Chen Chen","doi":"10.1055/a-2464-3148","DOIUrl":"10.1055/a-2464-3148","url":null,"abstract":"<p><p>This meta-analysis was aimed to compare the effects of two methods on post-activation performance enhancement (PAPE). We conducted a comprehensive search of PubMed, Web of Science, Cochrane Library, and China National Knowledge Infrastructure from inception to December 2023. Two authors independently selected the included studies, extracted data, and assessed the risk of bias and certainty evidence. The primary meta-analysis compared the effects of blood flow restriction combined with resistance training (BFR-RT) and high-load resistance training (HL-RT) on the indicator jump height (JH) and power output (PO) of PAPE. The secondary meta-analyses compared within-group differences by gender and between-group differences between the optimal combined protocol of arterial occlusion pressure (AOP) combined with resistance load and the HL-RT protocol. This meta-analysis shows that both BFR-RT and HL-RT significantly improved JH (standardized mean difference (SMD)=0.39, 95% confidence interval (CI) [0.20, 0.59]) (SMD=0.34, 95% CI [0.19, 0.48]) and PO (SMD=0.42, 95% CI [0.21, 0.62]) (SMD=0.37, 95%CI [0.19, 0.54]), and there was no significant difference between them. However, subgroup analysis revealed that in terms of gender, BFR-RT was more beneficial for PAPE in females, and in terms of combined protocol, BFR-RT with 50% AOP+30% 1 repetition maximum had the greatest effect compared to HL-RT.BFR-RT can serve as an effective alternative to HL-RT for inducing PAPE.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"172-181"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143005290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Billy Lozowski, Chih-Hsuan Wang, Gretchen D Oliver
{"title":"Pitching kinematics have direct and indirect effects on pitch location in NCAA baseball.","authors":"Billy Lozowski, Chih-Hsuan Wang, Gretchen D Oliver","doi":"10.1055/a-2468-5645","DOIUrl":"10.1055/a-2468-5645","url":null,"abstract":"<p><p>Kinematics and release parameters are important factors of throw location; yet an understanding of their relationship has yet to be achieved. This study sought to explore this relationship. Kinematic data were collected for 77 collegiate pitchers. Fifty-seven kinematic parameters were included in path analyses for horizontal and vertical plate locations. Release angles were set as mediating variables (MED) between independent and dependent variables. Eleven kinematic variables directly (13 indirectly) affected the vertical plate location, while 23 kinematic variables directly affected the horizontal plate location (10 indirectly). Linear mixed models revealed that lateral trunk flexion at ball release (<i>R</i> <sup>2</sup>=0.908, BIC=-598, ICC=0.528) best explained vertical plate location. Trunk flexion at foot contact (<i>R</i> <sup>2</sup>=0.944, BIC=-607, ICC=0.776), mediolateral center of mass displacement at foot contact (<i>R</i> <sup>2</sup>=0.974, BIC=-573, ICC=0.918) and ball release (<i>R</i> <sup>2</sup>=0.967, BIC=-593, ICC=0.865), and pelvis rotation at ball release (<i>R</i> <sup>2</sup>=0.965, BIC=-588, ICC=0.895) models were identified for the horizontal plate location. Results indicate that the relationship between pitching kinematics, release conditions, and throw location is complex. Biomechanics can influence release parameters, which in turn impacts the throw location. This work may serve to understand better how biomechanics influence performance.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"196-206"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142620681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaolin Yang, Yanchun Li, Dapeng Bao, Bing Yan, Tao Mei, Xiaoxi Liu, Pawel Cięszczyk, IldusI Ahmetov, LarsRobert Mc Naughton, Zihong He
{"title":"Genomic predictors of fat mass response to the standardized exercise training.","authors":"Xiaolin Yang, Yanchun Li, Dapeng Bao, Bing Yan, Tao Mei, Xiaoxi Liu, Pawel Cięszczyk, IldusI Ahmetov, LarsRobert Mc Naughton, Zihong He","doi":"10.1055/a-2421-9385","DOIUrl":"10.1055/a-2421-9385","url":null,"abstract":"<p><p>To explore the genetic architecture underlying exercise-induced fat mass change, we performed a genome-wide association study with a Chinese cohort consisting of 442 physically inactive healthy adults in response to a 12-week exercise training (High-intensity Interval Training or Resistance Training). The inter-individual response showed an exercise-induced fat mass change and ten novel lead SNPs were associated with the response on the level of P<1×10<sup>-5</sup>. Four of them (rs7187742, rs1467243, rs28629770 and rs10848501) showed a consistent effect direction in the European ancestry. The Polygenic Predictor Score (PPS) derived from ten lead SNPs, sex, baseline body mass and exercise protocols explained 40.3% of the variance in fat mass response, meanwhile importantly the PPS had the greatest contribution. Of note, the subjects whose PPS was lower than -9.301 had the highest response in exercise-induced fat loss. Finally, we highlight a series of pathways and biological processes regarding the fat mass response to exercise, e.g. apelin signaling pathway, insulin secretion pathway and fat cell differentiation biological process.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"127-136"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matheus Simionato Firmino, Matheus S Norberto, Germano Marcolino Putti, Carolina Lemos de Oliveira, Bianka da Silva Rumayor, João Victor Gatto Torini, Marcelo Papoti
{"title":"High- and Low-carb Diet and Fasting State Modify Alternative Maximal Accumulated Oxygen Deficit.","authors":"Matheus Simionato Firmino, Matheus S Norberto, Germano Marcolino Putti, Carolina Lemos de Oliveira, Bianka da Silva Rumayor, João Victor Gatto Torini, Marcelo Papoti","doi":"10.1055/a-2373-0102","DOIUrl":"10.1055/a-2373-0102","url":null,"abstract":"<p><p>This investigation aimed to assess whether the alternative method of estimating the maximal accumulated oxygen deficit (MAOD<sub>alt</sub>) can detect changes in energy system contribution in different substrate availabilities. Following a graded exercise test to determine maximal oxygen uptake intensity (iVO<sub>2max</sub>), 26 recreational runners performed a time to exhaustion effort (TTE) as baseline at 110% iVO<sub>2max</sub>. The same TTE was performed in fasting state, then, a muscle glycogen depletion protocol was executed. Subsequently, participants received a low-carbohydrate diet and beverages containing high (H-CHO, 10.8±2.1 g·kg<sup>- 1</sup>), moderate (M-CHO, 5.6±1.1 g·kg<sup>- 1</sup>), or zero (Z-CHO, 0.24±0.05 g·kg<sup>- 1</sup>) carbohydrates. Another TTE was performed 24 h later. Each energy system contribution was assessed. Generalized linear mixed models were used for statistical analysis (p<0.05). H-CHO increased relative anaerobic capacity (slope effect [baseline -intervention]x[H-CHO - M-CHO]) due to the relative lactic contribution maintenance (slope effect [baseline - intervention]x[H-CHO - Z-CHO] or [H-CHO - M-CHO]) and increase in relative alactic contribution (6.3±3.5 kJ·min<sup>- 1</sup>). The aerobic contribution was lower (- 8.7±4.0 kJ·min<sup>- 1</sup>), decreasing performance (- 34±16 s) for H-CHO. M-CHO and Z-CHO maintained anaerobic capacity due to increase in alactic contribution (slope effect [fasting - intervention]x[M-CHO - H-CHO]; and Z-CHO was 7.3±3.4 kJ·min<sup>- 1</sup> higher than baseline). Fasting increased relative alactic (2.9±1.7 kJ·min<sup>- 1</sup>) but decreased aerobic contribution (- 3.3±2.3 kJ·min<sup>- 1</sup>), impairing performance (- 17±12 s). In conclusion, MAOD<sub>alt</sub> can detect changes in energy system supply in different nutritional states. Therefore, participant's nutritional state must be considered prior to conducting the test.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"79-89"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ryoichi Ema, Yuta Iino, Yuta Nomura, Tomoki Furusawa, Kosuke Hirata, Yasuhide Yoshitake, Ryota Akagi
{"title":"Instrument-assisted soft tissue mobilization in healthy adults acutely changes the tissue stiffness.","authors":"Ryoichi Ema, Yuta Iino, Yuta Nomura, Tomoki Furusawa, Kosuke Hirata, Yasuhide Yoshitake, Ryota Akagi","doi":"10.1055/a-2453-8631","DOIUrl":"10.1055/a-2453-8631","url":null,"abstract":"<p><p>This study clarified whether instrument-assisted soft tissue mobilization (IASTM) on the plantar surface changes abductor hallucis and plantar fascia stiffness at rest and medial longitudinal arch height under low- and high-loading conditions. IASTM was performed to one foot of the twenty-eight young men (IASTM condition), and the other foot of them was assigned to the control condition. Using ultrasonography, the resting shear wave propagation velocity of the abductor hallucis and plantar fascia and navicular height in a seated posture were determined. The foot contact area during quiet standing was measured using a foot-scan system. The shear wave propagation velocity of the plantar fascia significantly decreased by 10.8% in the IASTM condition but did not change significantly in the control condition. The magnitude of change in the shear wave propagation velocity of the plantar fascia was negatively correlated (r=- 0.660) with the shear wave propagation velocity of the plantar fascia before IASTM. The interaction of time and condition was not significant for the shear wave propagation velocity of the abductor hallucis, navicular height, or foot contact area. The current study revealed that IASTM on the plantar surface affected tissue stiffness but did not change the structure of the foot.</p>","PeriodicalId":14439,"journal":{"name":"International journal of sports medicine","volume":" ","pages":"137-143"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11793953/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142681803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}