{"title":"Comparison of foot posture and foot muscle morphology between lifesaver athletes and healthy adults.","authors":"Shota Ichikawa, Tsukasa Kumai, Takumi Okunuki, Toshihiro Maemichi, Masatomo Matsumoto, Hiroki Yabiku, Zijian Liu, Ryusei Yamaguchi, Arina Iwayama, Goro Ayukawa, Yui Akiyama, Hiroyuki Mitsui, Hisateru Niki","doi":"10.1080/15438627.2021.2002330","DOIUrl":"https://doi.org/10.1080/15438627.2021.2002330","url":null,"abstract":"<p><p>This study aimed to compare the foot muscle morphology and foot posture between healthy adults and lifesavers in sandy beach sports. The participants included 15 lifesaver athletes and 15 healthy adults. Using a non-contact three-dimensional foot measurement device, the foot length, width, and arch height of the right foot were measured while standing and sitting without back support, and the transverse arch length ratio and arch height index were subsequently calculated. Muscle cross-sectional area was measured using an ultrasound imaging device. Muscle cross-sectional areas, arch height, foot width, arch height index, and transverse arch length ratio were larger in the lifesaver than in the healthy adult group. Lifesavers had higher arches and more developed intrinsic and extrinsic muscles than healthy adults. Performing physical activity while barefoot on sandy beaches may effectively develop the foot intrinsic and extrinsic muscles and raise the arch.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 4","pages":"506-516"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9693901","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}
Abigail G Swenson, N Stewart Pritchard, Logan E Miller, Jillian E Urban, Joel D Stitzel
{"title":"Characterization of head impact exposure in boys' youth ice hockey.","authors":"Abigail G Swenson, N Stewart Pritchard, Logan E Miller, Jillian E Urban, Joel D Stitzel","doi":"10.1080/15438627.2021.1989433","DOIUrl":"https://doi.org/10.1080/15438627.2021.1989433","url":null,"abstract":"<p><p>Ice hockey has one of the highest concussion rates among youth sports. Sensor technology has been implemented in contact and collision sports to inform the frequency and severity of head impacts experienced on-ice. However, existing studies have utilized helmet-mounted sensors with limited accuracy. The objective of this study was to characterize head kinematics of contact events in a sample of youth boys' hockey players using a validated instrumented mouthpiece with improved accuracy. Head kinematics from 892 video-verified events were recorded from 18 athletes across 127 sessions. Median peak resultant linear acceleration, rotational velocity, and rotational acceleration of video-verified events were 7.4 g, 7.7 rad/s, and 576 rad/s<sup>2</sup>, respectively. Contact events occurred at a higher rate in games (2.48 per game) than practices (1.30 per practice). Scenarios involving head contact had higher peak kinematics than those without head contact. This study improves our understanding of head kinematics in boys' youth hockey.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 4","pages":"440-450"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10068449","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}
Leyla Eraslan, Ann Cools, Ozan Yar, Selcuk Akkaya, Irem Duzgun
{"title":"Acromiohumeral distance quantification during a variety of shoulder external and internal rotational exercises in recreationally overhead athletes.","authors":"Leyla Eraslan, Ann Cools, Ozan Yar, Selcuk Akkaya, Irem Duzgun","doi":"10.1080/15438627.2022.2052068","DOIUrl":"https://doi.org/10.1080/15438627.2022.2052068","url":null,"abstract":"<p><p>To determine whether shoulder external (ER) and internal rotational (IR) exercises at five different shoulder abduction angles affect the acromiohumeral distance (AHD). Twenty recreational overhead athletes were included. AHD was measured using real-time ultrasound for each of the five shoulder conditions as follows: neutral shoulder rotation (active-hold) and during ER and IR exercises (isometric and concentric) at five different shoulder-abduction angles (0°, 30°, 45°, 60°, and 90° of abduction). A two-way ANOVA was used to analyze AHD values. Shoulder abduction angle × exercise interaction for AHD was found (F<sub>16,304</sub> = 10.92; p < .001; η2 = 0.37). For both isometric and concentric conditions, AHD increased during IR exercises (p < .05) yet decreased during ER exercises (p < .05) when compared with each active-hold positions. Shoulder ER and IR exercises influence the AHD in recreational overhead athletes. A larger AHD was observed during shoulder IR exercises, whereas ER exercises failed to maintain the AHD.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 6","pages":"818-830"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49692196","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}
Omar Boukhris, Khaled Trabelsi, David W Hill, Hsen Hsouna, Raouf Abdessalem, Achraf Ammar, Omar Hammouda, Cain C T Clark, Piotr Zmijewski, Peter Duking, Tarak Driss, Hamdi Chtourou
{"title":"Physiological response and physical performance after 40 min and 90 min daytime nap opportunities.","authors":"Omar Boukhris, Khaled Trabelsi, David W Hill, Hsen Hsouna, Raouf Abdessalem, Achraf Ammar, Omar Hammouda, Cain C T Clark, Piotr Zmijewski, Peter Duking, Tarak Driss, Hamdi Chtourou","doi":"10.1080/15438627.2022.2079979","DOIUrl":"https://doi.org/10.1080/15438627.2022.2079979","url":null,"abstract":"<p><p>This study aimed to examine the impact of 40-min and 90-min naps on performance in the 5-m shuttle run test (5mSRT) and on various physiological and perceptual measures. Sixteen male athletes (20 ± 3 years, 173 ± 7 cm, 67 ± 7 kg) performed the 5mSRT after a 40-min nap (N40), after a 90-min nap (N90), and in a no-nap, control condition (N0). The 5mSRT involves six repetitions of 30 s of all-out exercise. Total distance (in the six repetitions) and highest distance (in a single repetition) in the 5mSRT were greater after naps than in N0 (p < 0.001), and the total distance, which reflects the anaerobic capacity, was greater in N90 than in N40 (p < 0.05). Physiological and perceptual responses were favourable in both nap conditions (p < 0.01), more so in N90 than in N40 (p < 0.05). Together, the results support the contention that physiological/perceptual responses after napping contribute to improved exercise performance and that longer naps are more effective.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 6","pages":"881-894"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49692197","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}
Liang Cheng, Shuwan Chang, Bingcheng Wang, Benxiang He, Yajun Tan
{"title":"Cross-sectional study of depression tendency and sleep quality in 1352 people practicing Tai Chi.","authors":"Liang Cheng, Shuwan Chang, Bingcheng Wang, Benxiang He, Yajun Tan","doi":"10.1080/15438627.2021.2024832","DOIUrl":"https://doi.org/10.1080/15438627.2021.2024832","url":null,"abstract":"<p><p>This cross-sectional study aimed to analyse the relationship between Tai Chi exercise habits and depression tendency and sleep quality in people practicing Tai Chi in Chengdu, China. A total of 1352 Tai Chi practitioners aged 50-79 years old were divided into six groups according to age and gender for Tai Chi exercise habits, depression tendency and sleep quality. The frequency of weekly Tai Chi practice and duration of single Tai Chi practice have a significant positive correlation with the exercise years. For female subjects who had long-term Tai Chi exercise, depression decreased with the duration and weekly frequency of a single exercise. Tai Chi exercise habits reduced sleep disturbance scores (in the male group aged 60-69 years old, exercise years, r = -0.242, p = 0.004) and sleep duration (in the male and female group aged 70-79 years old, duration of single Tai Chi practice, r = -0.334, p = 0.035; r = -0.235, p = 0.029), suggesting that long-term Tai Chi exercise may reduce the trend of poor sleep quality due to increased ageing.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 5","pages":"650-662"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10041329","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}
Luis Torres Martín, Javier Raya-González, Rodrigo Ramirez-Campillo, Helmi Chaabene, Javier Sánchez-Sánchez
{"title":"Effects of body mass-based resistance training on measures of physical fitness and musculotendinous injury incidence and burden in U16 male soccer players.","authors":"Luis Torres Martín, Javier Raya-González, Rodrigo Ramirez-Campillo, Helmi Chaabene, Javier Sánchez-Sánchez","doi":"10.1080/15438627.2021.2010205","DOIUrl":"https://doi.org/10.1080/15438627.2021.2010205","url":null,"abstract":"<p><p>This study examined the effects of body mass-based resistance training (bmRT) on selected measures of physical fitness and injury incidence and burden in soccer players. Forty-six U16 male soccer players were randomly assigned to an control (CG; n = 26) or experimental group (EG; n = 20) Countermovement jump (CMJ), change of direction (CoD) (i.e., 20 m with one CoD), and linear sprint over 30 m were assessed before and after a 15-weeks training. Any type of musculotendinous injury that occurred throughout the intervention period was recorded. Between-group difference was noted at post-test for CMJ (p = 0.008). Pre-to-post training values increased in the EG (effect size [ES] = 1.01) while in the CG no pre-to-post changes were detected (ES = 0.27). No between-group differences at post-test were observed for sprint and CoD tests. Differences in injury burden were reported (33.28 [CG] vs. 9.55 [EG] absence days/1,000 hours exposure, rate ratio = 3.49, 95% CI 2.03-6.00, p < 0.001), but not in injury incidence. A bmRT programis suitable for improving jumping height but not linear and CoD speed performance. Additionally, bmRT may reduce injury burden, and therefore, the severity of musculotendinous injuries in U16 male soccer players.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 5","pages":"574-587"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10416634","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}
Emmanuel Orhant, Jean-François Chapellier, Christopher Carling
{"title":"Injury rates and patterns in French male professional soccer clubs: a comparison between a regular season and a season in the Covid-19 pandemic.","authors":"Emmanuel Orhant, Jean-François Chapellier, Christopher Carling","doi":"10.1080/15438627.2021.1989434","DOIUrl":"https://doi.org/10.1080/15438627.2021.1989434","url":null,"abstract":"<p><p>This study investigated time-loss injury occurrence and patterns between the first season (2020/21, S2) completed during the Covid-19 pandemic (longer pre-season following cancellation of the 2019/20 season but shorter duration) and a regular season (2018/19, S1) in French Ligue 1 and 2 professional soccer clubs. Epidemiological data were prospectively recorded in a national injury database by each club's physician. In all clubs combined, the mean number of injuries per club was 31.5 and 36.6 in S2 and S1, respectively (-13.9%). Overall match injury incidence (per 1000 hours) in all clubs combined was lower in S2 versus S1 (22.23 vs 25.96, p < 0.01). In Ligue 1 clubs alone, match-play incidences for injury overall (24.92 vs 29.42), muscle strains (10.59 vs 13.24) and strains specifically in the hamstring region (4.52 vs 6.22) were lower in S2 versus S1 (all p < 0.05). No differences in the incidence of match injuries affecting the ankle and knee regions were observed. Changes in the 2020/21 season structure and duration owing to the Covid-19 pandemic seem not to have had a negative effect on injury occurrence and patterns in French professional soccer clubs.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 4","pages":"451-461"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9746619","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}
Gul Baltaci, Nihan Ozunlu Pekyavas, Ozgur Ahmet Atay
{"title":"Short-time Effect of Sterile Kinesio Tape applied during Anterior Cruciate Ligament Reconstruction on Edema, Pain and Range of Motion.","authors":"Gul Baltaci, Nihan Ozunlu Pekyavas, Ozgur Ahmet Atay","doi":"10.1080/15438627.2021.2010203","DOIUrl":"https://doi.org/10.1080/15438627.2021.2010203","url":null,"abstract":"<p><p>The purpose of this study was to investigate the effects of edema, pain, and range of motion of knee by sterile kinesio taping within 3 days after ACLR. We hypothesized that sterile taping which is a new material of kinesio taping reduces knee pain and swelling and improves knee range of movement after ACLR. Fifty-sixth subjects who underwent an elective ACLR with were randomized into intervention(n=28) and control groups(n=28). Subjects from both groups received standardized postoperative physiotherapy. Pain by VAS, total ROM of the knee, and circumferential girth were measured at the first, second- and third-day post-surgery. There were found statistically significant differences in all study parameters within each group. Comparison of the study parameters between both groups revealed a statistical significance at various time points except the reduction of pain in the taping group in the early postoperative phase (between the first and second day) (P<0.05). There was no statistical significance in the reduction of swelling or improvement of knee total ROM with kinesio taping. This study showed that sterile kinesio taping reduced pain, improved ROM of the knee and decreased edema in the early post-operative period after ACLR.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 5","pages":"550-561"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10398287","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}
Vitória A Teixeira, Thiago M Queiroz, Isadora V Leão, Lucas D G Innecco, Erica L Marcelino, Daniel F M Lobato
{"title":"FIFA 11+ Kids program effects on jump kinetics in soccer players - A randomized controlled clinical trial.","authors":"Vitória A Teixeira, Thiago M Queiroz, Isadora V Leão, Lucas D G Innecco, Erica L Marcelino, Daniel F M Lobato","doi":"10.1080/15438627.2021.2010204","DOIUrl":"https://doi.org/10.1080/15438627.2021.2010204","url":null,"abstract":"<p><p>This study aimed to analyse the effects of the FIFA 11+ Kids programme on jump kinetics in soccer players. Twenty-four athletes (aged 9-11 years) were randomly allocated to the following groups: 1) the FIFA 11+ Kids programme (FT, n = 12), and 2) control training (CT, n = 12). Kinetic assessments of vertical jump (VJ), drop landing (DL), and anterior jump + maximum vertical jump (AJ) were performed on a force platform before and after eight weeks of training. Post-intervention impulse peak force and maximum impulse force (VJ) were significantly greater than the baseline values in the FT group (<i>P</i> < 0.001). Post-intervention landing peak force values for the first and second landings (DL) were significantly greater than the baseline values in the FT group (<i>P</i> = 0.01 and <i>P</i> = 0.05, respectively). Post-intervention landing peak force in the first landing (AJ) was significantly greater than the baseline values in the FT group (<i>P</i> = 0.005). The FT was effective in improving the impulsion performance during VJ. However, it increased the landing forces during DL and VJ.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 5","pages":"562-573"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10032284","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}
Matheus Dantas, Rui Barboza-Neto, Natália Mendes Guardieiro, Ana Lúcia de Sá Pinto, Bruno Gualano, Bryan Saunders
{"title":"A cloth facemask increased ratings of perceived exertion and reduced affect, without affecting sprint or muscular performance.","authors":"Matheus Dantas, Rui Barboza-Neto, Natália Mendes Guardieiro, Ana Lúcia de Sá Pinto, Bruno Gualano, Bryan Saunders","doi":"10.1080/15438627.2021.2010202","DOIUrl":"https://doi.org/10.1080/15438627.2021.2010202","url":null,"abstract":"<p><p>We determined the effects of wearing a cloth facemask on exercise performance and subjective responses during training of track and field athletes. Track and field athletes (n = 10, sprinters and long jumpers) performed two training sessions with and without a three-layered antiviral cloth facemask. The training session simulated the specific demands of the sport, consisting of five 30-m sprints, interspersed with passive 4-min intervals. Countermovement jump performance was assessed pre- and post-sprints, and ratings of perceived exertion (RPE) and affect were collected throughout. There was no evidence of <i>condition*time interactions</i> for sprint time (P = 0.21) or acceleration (P = 0.47). There was weak evidence of a condition effect on RPE (P = 0.05), though no <i>condition*time interaction</i> (P = 0.35). There was moderate evidence of a <i>condition*time interaction</i> for affect (P = 0.02), with lower ratings following sprints 3, 4 and 5 when using the mask. These findings suggest that wearing a mask may negatively impact subjective feelings of training without necessarily harming sprint performance.</p>","PeriodicalId":20958,"journal":{"name":"Research in Sports Medicine","volume":"31 5","pages":"544-549"},"PeriodicalIF":2.4,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10041323","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}