Sports medicine international open最新文献_第5页

High-Impact Details of Play and Movements in Female Basketball Game. 女子篮球比赛中高冲击力的打法和动作细节。

Sports medicine international open Pub Date : 2021-02-03 eCollection Date: 2021-01-01 DOI: 10.1055/a-1309-3085

Yasuharu Nagano, Shogo Sasaki, Yui Shimada, Takeshi Koyama, Hiroshi Ichikawa

{"title":"High-Impact Details of Play and Movements in Female Basketball Game.","authors":"Yasuharu Nagano, Shogo Sasaki, Yui Shimada, Takeshi Koyama, Hiroshi Ichikawa","doi":"10.1055/a-1309-3085","DOIUrl":"https://doi.org/10.1055/a-1309-3085","url":null,"abstract":"This study aimed to identify the high-impact details of play and movements with higher acceleration and their frequency during a female basketball match. Trunk acceleration was measured during a simulated basketball game with eight female players. The extracted instance was categorized, which generated at > 6 and 8 G resultant accelerations using a video recording and an accelerometer attached to the players' trunk, as details of play and movements. The frequency and ratio of the details of play and movements regarding all detected movements were calculated. A total of 1062 and 223 play actions were detected for the resultant acceleration thresholds of > 6 and 8 G, respectively. For these acceleration thresholds, in terms of details of play, positioning on the half-court was the most frequently observed (29.6 and 23.8%, respectively). In terms of movements, deceleration was the most frequently detected movement (21.5 and 23.3%, respectively), followed by landing (7.6 and 15.7%, respectively). Deceleration during positioning on the half-court and defense as well as landing mostly after a shot were detected as high-impact frequent basketball-specific movements. The results also showed that characteristics of movements or playing style and playing position may have an effect on acceleration patterns during a basketball game.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"5 1","pages":"E22-E27"},"PeriodicalIF":0.0,"publicationDate":"2021-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1309-3085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25342759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Multi-Micronutrient Supplementation and Immunoglobulin Response in Well-Fed Firefighters. 营养充足的消防员补充多种微量营养素和免疫球蛋白反应。

Sports medicine international open Pub Date : 2020-12-17 eCollection Date: 2021-01-01 DOI: 10.1055/a-1296-1486

José Augusto Rodrigues Santos, Ricardo J Fernandes, Rodrigo Zacca

{"title":"Multi-Micronutrient Supplementation and Immunoglobulin Response in Well-Fed Firefighters.","authors":"José Augusto Rodrigues Santos, Ricardo J Fernandes, Rodrigo Zacca","doi":"10.1055/a-1296-1486","DOIUrl":"https://doi.org/10.1055/a-1296-1486","url":null,"abstract":"Intensive physical training programs can affect the immune system. This study aims to verify the multi-micronutrient supplementation effects on serum immunoglobulins levels prior to and after a five-week physical training program. Twenty-four male recruit firefighters were randomly allocated into supplemented (with Prisfar Ever-Fit Plus over 35 consecutive days) and placebo groups (n=12 each). Serum immunoglobulins G, A, and M were assessed. Supplementation effect was detected for immunoglobulin G (eta-squared, η 2 : 0.09; p =0.035; power: 0.56), A (η 2 : 0.24; p =0.001; power: 0.95), and M (η 2 : 0.09; p =0.036; power: 0.56). Although immunoglobulin A was different between groups at baseline (mean difference: 42.58; 95%CI: 7.00 to 78.16 mg/dL; p =0.021; d =2.48), within-group (before vs . after five weeks) showed no differences for both supplemented and control groups. In addition, even if immunoglobulin G and M were similar at baseline, immunoglobulin G decreased (mean diff.: 46.4; 95%CI: 6.7 to 86.1 mg/dL; p =0.03; d =0.74) and immunoglobulin M increased (mean diff.: -10.7; 95%CI: -15.8 to -5.5 mg/dL; p =0.001; d =-1.33) in the control group. Although mean values remained within the reference values, changes observed for immunoglobulin G and M may reflect some immune protection for firefighters engaged in recruit training.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"5 1","pages":"E1-E7"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1296-1486","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38763688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Weight Category-dependent Trunk Muscle Strength and its Relation with LBP in Elite Judokas. 优秀柔道运动员躯干肌肉力量及其与腰痛的关系。

Sports medicine international open Pub Date : 2020-12-16 eCollection Date: 2021-01-01 DOI: 10.1055/a-1303-2741

Takashi Okada, Takayoshi Hakkaku, Kazunori Iwai, Koichi Nakazato

{"title":"Weight Category-dependent Trunk Muscle Strength and its Relation with LBP in Elite Judokas.","authors":"Takashi Okada, Takayoshi Hakkaku, Kazunori Iwai, Koichi Nakazato","doi":"10.1055/a-1303-2741","DOIUrl":"https://doi.org/10.1055/a-1303-2741","url":null,"abstract":"Trunk muscle strength (TMS), especially rotator, is an important factor for both athletic performance and injury risks in judokas. However, the characteristics of TMS that depend on weight categories are still unclear. Although inadequate TMS might cause low back pain (LBP), the relationship between these two variables is not fully understood. In this study, weight category-dependent TMS and its relationship with LBP was investigated in Japanese judokas. The subjects were 66 male collegiate judokas, who were classified into the lightweight (N=14), middleweight (N=29) or heavyweight (N=23) category. The peak torques of extensor, flexor and rotator muscles were measured. The LBP group and non-LBP group were defined by questionnaire. TMS (normalized by body weight) in the heavier weight category showed a lower tendency in comparison with other categories, except for rotator strength. Significant differences were observed in the extensors (90 and 120 °/s; P<0.05) and flexors (60, 90 and 120 °/s; P<0.05). The LBP group (N=9) only showed significantly lower extensor (60 °/s; P<0.05) and right-rotator (60 °/s; P<0.01) strength in the heavyweight category compared with the non-LBP group (N=14). The relative TMS of judokas decreased in the heavyweight category, except for trunk rotator strength. Notably, low trunk extensor and rotator strengths are risk factors for LBP in heavyweight judokas.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"5 1","pages":"E14-E21"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1303-2741","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38744465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The Effects of Body Mass Index on Softball Pitchers' Hip and Shoulder Range of Motion. 体质指数对垒球投手髋、肩活动范围的影响。

Sports medicine international open Pub Date : 2020-12-16 eCollection Date: 2021-01-01 DOI: 10.1055/a-1244-1621

Kenzie B Friesen, Adam W Anz, Jeffrey R Dugas, James R Andrews, Gretchen D Oliver

{"title":"The Effects of Body Mass Index on Softball Pitchers' Hip and Shoulder Range of Motion.","authors":"Kenzie B Friesen, Adam W Anz, Jeffrey R Dugas, James R Andrews, Gretchen D Oliver","doi":"10.1055/a-1244-1621","DOIUrl":"https://doi.org/10.1055/a-1244-1621","url":null,"abstract":"Currently it is hypothesized that increased body mass index may contribute to overuse injuries. Thus, if hip or shoulder range of motion is affected by body mass index, pitchers may be placing additional stress on joints as they seek to pitch at maximal velocity. The purpose of this study was to examine if range of motion at the hips and shoulders were related to body mass index classification. A sample of 147 female softball pitchers (17.0±4.2 years; 167.6±11.8 cm; 70.6±17.5 kg; body mass index=24.8±4.7 kg/m 2 ) participated. Bilateral hip and shoulder range of motion were assessed. Multivariate analysis of variance results indicated body mass index [Wilks' Λ =0.742, F=1.722, p=0.014, η 2 =0.095] significantly affected range of motion of the shoulder and hip. Post hoc results indicated the underweight group had significantly more range of motion than the obese group in hip internal range of motion on both the throwing side (mean difference=12.39, p=0.005) and glove side (mean difference=11.98, p=0.004). Although body composition is not overly emphasized among softball pitchers, the current study reveals excess weight may inhibit proper mechanics. Coaches, athletic trainers, strength and conditioning personnel, and athletes should acknowledge the role that body composition can play in affecting pitch outcomes.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"5 1","pages":"E8-E13"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1244-1621","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38744464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Fast Motion Speed Alters the Sit-to-Walk Spatial and Temporal Pattern in Healthy Young Men. 快速运动速度改变健康青年男性坐-行空间和时间模式。

Sports medicine international open Pub Date : 2020-12-09 eCollection Date: 2020-12-01 DOI: 10.1055/a-1286-5863

Elissavet N Rousanoglou, Nikolaos Kondilopoulos, Konstantinos D Boudolos

{"title":"Fast Motion Speed Alters the Sit-to-Walk Spatial and Temporal Pattern in Healthy Young Men.","authors":"Elissavet N Rousanoglou, Nikolaos Kondilopoulos, Konstantinos D Boudolos","doi":"10.1055/a-1286-5863","DOIUrl":"https://doi.org/10.1055/a-1286-5863","url":null,"abstract":"Sit-to-Walk (STW) is a critical task for daily independence, yet its two inherent destabilizing events (seat-off, walking initiation) may diminish postural stability under fast motion speed (FS). This study aimed at the FS effect on the STW spatial and temporal patterns, with a specific interest in the relative STW temporal pattern. The STW kinetics and kinematics were recorded (n=18 men, 20.7±2.0 years) at preferred and FS. Statistics included One-Way repeated measures ANOVA (SPSS 25.0, p≤0.05). The FS spatial pattern reveals a discontinuous mode of the forward ground reaction force, indicating a balance rather than a propulsive strategy during the Rising phase. The FS relative temporal pattern reveals the prolongation of the Leaning phase (most possibly due to the feet repositioning), the shortening of the Rising and the Walking phases, and a relative delay in the spatial variables (p≤0.05). Overall, the results do not allow the STW consideration at FS as a \"magnified\" with respect to force, or a \"shrinked-in\" with respect to time, copy of the preferred motion speed. As more generic and versatile than the absolute one, the relative temporal pattern may be used as a reference for a variety of populations.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"4 3","pages":"E77-E84"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1286-5863","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38717064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Correction: Interactional Response During Infants' Aquatic Sessions. 更正:婴儿水上活动期间的互动反应。

Sports medicine international open Pub Date : 2020-12-09 eCollection Date: 2020-12-01 DOI: 10.1055/a-1325-7487

Marta Martins, Aldo Costa, Mario J Costa, Daniel A Marinho, Tiago M Barbosa

引用次数: 0

Letter to the Editor - Reply. 给编辑的信-答复。

Sports medicine international open Pub Date : 2020-11-04 eCollection Date: 2020-10-01 DOI: 10.1055/a-1231-6803

Sami Aleissa

引用次数: 0

Letter to the Editor. 给编辑的信。

Sports medicine international open Pub Date : 2020-11-04 eCollection Date: 2020-10-01 DOI: 10.1055/a-1231-6791

Ahmed Farrag, Eidan AlZahrani, Walaa Elsayed

引用次数: 2

Interactional Response During Infants' Aquatic Sessions. 婴儿水上活动期间的互动反应。

Sports medicine international open Pub Date : 2020-07-27 eCollection Date: 2020-10-01 DOI: 10.1055/a-1201-4522

Marta Martins, Aldo Costa, Mario J Costa, Daniel A Marinho, Tiago M Barbosa

引用次数: 1

Kinematic and EMG Comparison Between Variations of Unilateral Squats Under Different Stabilities. 不同稳定性下单侧深蹲运动变化的运动学和肌电图比较。

Sports medicine international open Pub Date : 2020-07-16 eCollection Date: 2020-08-01 DOI: 10.1055/a-1195-1039

Roland van den Tillaar, Stian Larsen

{"title":"Kinematic and EMG Comparison Between Variations of Unilateral Squats Under Different Stabilities.","authors":"Roland van den Tillaar, Stian Larsen","doi":"10.1055/a-1195-1039","DOIUrl":"https://doi.org/10.1055/a-1195-1039","url":null,"abstract":"The purpose of the study was to compare kinematics and muscle activity between two variations of unilateral squats under different stability conditions. Twelve male volunteers (age: 23±5 years, mass: 80±17 kg, height: 1.81±0.11 m, strength-training experience: 4.3±1.9 years) performed four repetitions with the same external load (≈4RM). Two variations (with the non-stance leg forwards vs. backwards) were performed in a Smith-machine and free-weight condition. The variables were barbell velocity, lifting time and surface electromyography activity of the lower extremity and trunk muscles during the descending and ascending phase. The main findings were 1) peak force was higher when performing the unilateral squats in the Smith machine; 2) peak ascending barbell velocity increased from repetition 3-4 with free weight; and 3) muscle activity from the rectus femoris, vastus lateral, biceps femoris, gluteus medius, and erector spinae increased with repetitions, whereas gluteus, and medial vastus and shank muscles were affected by the conditions. It was concluded that more peak force could be produced because of increased stability. However, peak barbell velocity increased from repetition to repetition in free-weight unilateral squats, which was probably because the participants grew more comfortable. Furthermore, increased instability causes more gluteus and vastus medial activation and foot variations mainly affected the calf muscles.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"4 2","pages":"E59-E66"},"PeriodicalIF":0.0,"publicationDate":"2020-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1195-1039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38169797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8