Journal of Sports Medicine and Physical Fitness最新文献

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Vascular adaptations following an eight-week sprint interval training intervention in healthy men. 对健康男性进行为期八周的短跑间歇训练干预后的血管适应性。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-28 DOI: 10.23736/S0022-4707.24.16377-3
Paul R Nagelkirk, Daniel P Farrell, James R Sackett
{"title":"Vascular adaptations following an eight-week sprint interval training intervention in healthy men.","authors":"Paul R Nagelkirk, Daniel P Farrell, James R Sackett","doi":"10.23736/S0022-4707.24.16377-3","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16377-3","url":null,"abstract":"<p><strong>Background: </strong>Sprint interval training (SIT) has been shown to improve many indices of cardiovascular risk. The effect of SIT on emerging indicators of cardiovascular health, including arterial stiffness and carotid intima media thickness, remains unclear. Thus, the purpose of this study was to assess changes in augmentation index at 75 beats per minute (AIx@75), pulse wave velocity (cfPWV), and carotid intima media thickness (CIMT) at three time points of an 8-week SIT intervention.</p><p><strong>Methods: </strong>Eighteen sedentary men (age: 24.7±5.1 years, BMI: 26.7±5.8 kg/m<sup>2</sup>) participated in the study. Subjects trained 3 times a week for 8 weeks. Training consisted of 3-6 consecutive 30-second bouts of maximal intensity cycling, with 4.5 minutes of active recovery between bouts. Baseline, 4-week, and 8-week vascular assessments were performed. Training effects were analyzed using repeated measures ANOVA. Pearson correlations were used to determine the relationship between baseline values and the change scores (baseline to 8 weeks) of each vascular measure.</p><p><strong>Results: </strong>AIx@75 (BL: -3.6±10.9%, 4W: -5.6±8.3%, 8W: -3.2±9.5%), cfPWV (BL: 5.6±1.0 m/s, 4W: 5.8±0.9 m/s, 8W: 5.6±0.7 m/s), and CIMT (BL: 0.51±0.08 mm, 4W: 0.52±0.08 mm, 8W: 0.51±0.08 mm) did not significantly change (all P>0.05). Baseline cfPWV and AIx@75 were negatively correlated to their change from baseline to 8 weeks (P<0.05).</p><p><strong>Conclusions: </strong>These findings demonstrate that 8 weeks of SIT is an insufficient stimulus to reduce cfPWV, AIx@75, or CIMT in a group of young, healthy men. Baseline arterial stiffness may modulate vascular adaptations to SIT.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502673","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}
引用次数: 0
Discipline-specific adaptation patterns in respiratory and lower limb musculotendinous structures: cyclists vs. basketball players. 呼吸系统和下肢肌肉肌腱结构的学科特异性适应模式:自行车运动员与篮球运动员。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-28 DOI: 10.23736/S0022-4707.24.16429-8
Leonardo Cesanelli, Deividas Saveikis, Daniele Conte, Danguole Satkunskiene
{"title":"Discipline-specific adaptation patterns in respiratory and lower limb musculotendinous structures: cyclists vs. basketball players.","authors":"Leonardo Cesanelli, Deividas Saveikis, Daniele Conte, Danguole Satkunskiene","doi":"10.23736/S0022-4707.24.16429-8","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16429-8","url":null,"abstract":"<p><strong>Background: </strong>This study aimed at assessing how chronic exposure to specific exercise training (high-intensity intervals vs. endurance), comparing experienced basketball-players (BP, N.=16), cyclists (CY, N.=16), and non-specifically trained individuals (CN, N.=16), influences the structural and functional characteristics of both lower limb and respiratory musculotendinous structures.</p><p><strong>Methods: </strong>Vastus lateralis, gastrocnemius lateralis, and medialis, diaphragm muscles, as well as patellar tendon and Achilles tendon, were assessed using B-mode ultrasonography. Maximal voluntary isometric and passive torque measurements were conducted in the knee-extensors and plantar-flexors. Additionally, a subset of participants (N.=10 for each group) underwent a fatigue-inducing exercise-till-exhaustion protocol, and the strength of lower limb and respiratory muscles was evaluated immediately before and after the trial.</p><p><strong>Results: </strong>Athletes had bigger and stronger musculotendinous structures and greater endurance to fatigue than CN (P<0.05). BP had bigger plantar-flexors and diaphragm, greater fascicles length, more explosive plantar-flexors and respiratory muscles and bigger tendons than CY (P<0.05). On the other hand, CY showed greater muscle pennation angle and greater endurance to fatigue for both, lower limb, and respiratory muscles (P<0.05).</p><p><strong>Conclusions: </strong>The present study emphasizes that chronic and specific exercise training leads to distinctive adaptations, not only in lower limb musculotendinous structures but also in other components such as respiratory muscles.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502671","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}
引用次数: 0
Cut-off values for estimated cardiorespiratory fitness in terms of physical functioning among middle-aged to older adults. 中老年人心肺功能估计值的临界值。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-28 DOI: 10.23736/S0022-4707.24.16384-0
Olli-Pekka Nuuttila, Pauliina Husu, Kari Tokola, Henri Vähä-Ypyä, Harri Sievänen, Tommi Vasankari
{"title":"Cut-off values for estimated cardiorespiratory fitness in terms of physical functioning among middle-aged to older adults.","authors":"Olli-Pekka Nuuttila, Pauliina Husu, Kari Tokola, Henri Vähä-Ypyä, Harri Sievänen, Tommi Vasankari","doi":"10.23736/S0022-4707.24.16384-0","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16384-0","url":null,"abstract":"<p><strong>Background: </strong>Cardiorespiratory fitness is linked to various health outcomes. This study aimed to establish cut-off values for estimated cardiorespiratory fitness associated with poor physical functioning in middle-aged to older adults.</p><p><strong>Methods: </strong>A total of 2638 participants (1083 males), aged 40-69 years, performed a 6-min walking test (6MWT) to estimate cardiorespiratory fitness (VO<inf>2max)</inf> and completed a health-related questionnaire. Physical functioning was assessed using four outcomes: perceived health, perceived fitness, difficulties in 2-km walking, and difficulties in climbing several stairs. Receiver operator characteristics (ROC) curves were used to determine cut-off values for estimated VO<inf>2max</inf> and 6MWT distance linked to poor physical functioning based on the four outcomes. Analyses were done separately for males and females, and for 40- to 49-, 50- to 59-, and 60- to 69-year-old groups. Multinomial regression was used to analyze differences between fitness thirds in outcome variables.</p><p><strong>Results: </strong>ROC analyses were significant for all outcomes (AUC 0.686-0.834, P<0.001). In the total group, cut-off values for estimated VO<inf>2max</inf> were 29.9-30.2 mL/kg/min, and for walking distance, 588.0-599.5 m. Cut-off values decreased with age, and mean differences between males and females were 3.3 mL/kg/min and 33 m. All cut-off values were within ±1.3 mL/kg/min of the lower fitness tertile. The odds ratios of having poor physical functioning in the middle and high fitness thirds were less than 0.50 compared to low fitness third.</p><p><strong>Conclusions: </strong>VO<inf>2max</inf> of 30 mL/kg/min and 600-m walking distance seemed reasonable cut-off values for poor physical functioning. Exceeding the currently proposed thresholds is a desirable goal to avoid consequences of insufficient fitness.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502670","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}
引用次数: 0
Prediction of central Augmentation Index in healthy adults. 预测健康成年人的中心增强指数。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-28 DOI: 10.23736/S0022-4707.24.16145-2
Devon A Dobrosielski, Hannah A Zabriskie, Kathleen Dondero, Brenna Baus, Justin Updegraff, Rian Q Landers-Ramos
{"title":"Prediction of central Augmentation Index in healthy adults.","authors":"Devon A Dobrosielski, Hannah A Zabriskie, Kathleen Dondero, Brenna Baus, Justin Updegraff, Rian Q Landers-Ramos","doi":"10.23736/S0022-4707.24.16145-2","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16145-2","url":null,"abstract":"<p><strong>Background: </strong>Central Augmentation Index (AIx) is a surrogate marker of large artery stiffness that may provide valuable insight to cardiovascular health. The aim of this study was to evaluate the relationship between AIx and components of physical fitness.</p><p><strong>Methods: </strong>One hundred eighty-five healthy men and women (aged 20-79 years) underwent non-invasive assessment of arterial wave reflection to determine AIx, which was corrected to a heart rate of 75 beats per minute (AI×75). Body composition was evaluated using dual energy X-ray absorptiometry (DXA) and aerobic capacity (VO<inf>2max</inf>) was derived from expired gas analysis during a symptom limited exercise test on a treadmill.</p><p><strong>Results: </strong>A multiple linear regression revealed age and VO<inf>2max</inf> as significant predictors of AI×75 [AI×75=32.055 + (0.252×age) - (0.722×VO<inf>2max</inf>)]. Upon removal of VO<inf>2max</inf> from regression analysis, resting heart rate (RHR) and % body fat (BF%) were revealed to be significant predictors of AI×75: AI×75=-61.316 + (0.481×age) + (0.565×BF%) + (0.56×RHR).</p><p><strong>Conclusions: </strong>Our findings demonstrate that central Augmentation Index can be reliably predicted in healthy adults who undergo a maximal exercise or body composition assessment. These prediction equations may be applied in non-medical settings to assist in creating comprehensive health and fitness profiles for healthy clientele.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502672","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}
引用次数: 0
Effects of aerobic and anaerobic training on freedivers' performance. 有氧和无氧训练对自由泳运动员成绩的影响。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-09 DOI: 10.23736/S0022-4707.24.16436-5
Ivan Drviš, Dario Vrdoljak, Lana Ružić, Goran Dujić, Željko Dujić, Nikola Foretić
{"title":"Effects of aerobic and anaerobic training on freedivers' performance.","authors":"Ivan Drviš, Dario Vrdoljak, Lana Ružić, Goran Dujić, Željko Dujić, Nikola Foretić","doi":"10.23736/S0022-4707.24.16436-5","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16436-5","url":null,"abstract":"<p><strong>Background: </strong>Freediving is a sport that could be defined as both aerobic and anaerobic. Therefore, this study aimed to evaluate the effect of aerobic-anaerobic training on the performance of moderate and elite freedivers.</p><p><strong>Methods: </strong>The sample of participants included 26 freedivers (9 females) (average age of 26.62±3.34 years, body height of 178.95±9.19 cm, and body mass of 74.64±11.97 kg). The sample of variables included: anthropometric indices, relative maximal oxygen consumption (rVO<inf>2max</inf>), Diving anaerobic sprint test (DAST), Swimming anaerobic sprint test (SAST), 100-meter crawl sprint test (100 m), maximal dynamic apnea with monofin (DYN), maximal swimming length for 2 minutes (2 min). The study procedure included a 5-month aerobic-anaerobic training intervention. This intervention was conducted during a 4-phase (5-week each) training period.</p><p><strong>Results: </strong>The results showed that moderate group showed a significant decrease in 100 m (final 83.94±15.68; initial 88.29±16.73; P<0.00), DAST<inf>max</inf> (final 10.91±1.46; initial 12.01±1.38; P<0.00), DAST (final 70.29±8.95; initial 79.40±10.25; P<0.00), SAST<inf>max</inf> (final 16.81±2.24; initial 18.01±2.69; P<0.00), SAST(final 112.87±19.19; initial 122.65±21.55; P<0.00), and increase in 2 min (final 140.56±21.53; initial 128.68±19.33; P<0.00), and DYN (final 130.48±26.89; initial 91.65; P<0.00). Similarly, the elite group experienced a decrease in 100 m (final 72.18±9.77; initial 75.00±11.36; P=0.02), DAST<inf>max</inf> (final 10.14±0.95; initial 10.88±0.99; P=0.03), DAST (final 65.55±6.50; initial 71.24±7.32; P=0.02), SAST<inf>max</inf> (final 14.82±1.84; initial 15.76±1.80; P=0.03), and increase in DYN (final 194.94±27.70; initial 161.11±27.70; P<0.00).</p><p><strong>Conclusions: </strong>The results of this study demonstrate that dynamic apnea, as a main performance factor, had increase in all phases of procedure, with highest increase during anaerobic phases.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142391403","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}
引用次数: 0
Alterations in hamstring properties of athletes with hamstring strain injuries can impact jump-landing performance. 腘绳肌拉伤运动员的腘绳肌特性改变会影响跳跃落地的表现。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-09 DOI: 10.23736/S0022-4707.24.16148-8
Amornthep Jankaew, Cheng-Feng Lin
{"title":"Alterations in hamstring properties of athletes with hamstring strain injuries can impact jump-landing performance.","authors":"Amornthep Jankaew, Cheng-Feng Lin","doi":"10.23736/S0022-4707.24.16148-8","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16148-8","url":null,"abstract":"<p><strong>Background: </strong>Hamstring strains may alter the contractile properties of the muscle and affect functional movement. Thus, this study evaluated the association between the hamstring properties and the jump-landing performance in athletes with hamstring strains.</p><p><strong>Methods: </strong>Sixteen hamstring-injured athletes and 16 healthy controls were recruited. The mechanical properties and contractile function of the hamstring were assessed in both the injured and non-injured legs. The control group was tested only in the matched injured leg. The kinetic outcomes during squat jump (SJ) and countermovement jump (CMJ) tasks were analyzed to evaluate the jump-landing performance.</p><p><strong>Results: </strong>The injured limb exhibited higher muscle tone (P=0.042) and stiffness (P=0.010), but lower flexibility (P=0.002) and strength (P=0.040) than the control limb. The injured limb showed a poorer jumping performance (P=0.037 for jump height) and landing performance (P=0.011 for landing force and P=0.004 for loading rate) during the CMJ task compared to the control limb. All the hamstring properties showed mild-to-moderate correlations with the jump-landing performance.</p><p><strong>Conclusions: </strong>Impairments in the muscle properties following hamstring strain impact the jumping and landing performance, leading to degraded sports outcomes in athletes with hamstring injuries. Thus, more attention should be paid to tissue property changes following hamstring strain injuries to develop effective strategies for restoring muscle function and improving sports performance.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142391391","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}
引用次数: 0
Physiological parameters and training characteristics of endurance runners at Ethiopian Youth Sports Academy (2400 meters above sea level) and Guna Athletics Sport Club (3100 meters above sea level) training camps: a comparative cross-sectional study. 埃塞俄比亚青年体育学院(海拔 2400 米)和古纳田径运动俱乐部(海拔 3100 米)训练营耐力跑运动员的生理参数和训练特点:横断面比较研究。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-09 DOI: 10.23736/S0022-4707.24.16047-1
Zelalem T Muche, Diresibachew H Wondimu, Milkessa B Midekssa, Endeshaw C Abebe, Melaku M Agidew, Tekile M Ayele, Edgeit A Zewde, Anemut T Mulu, Assefa A Teshome, Nega D Baye, Awgichew B Teklemariam, Daniel A Bekele, Gutema J Muleta
{"title":"Physiological parameters and training characteristics of endurance runners at Ethiopian Youth Sports Academy (2400 meters above sea level) and Guna Athletics Sport Club (3100 meters above sea level) training camps: a comparative cross-sectional study.","authors":"Zelalem T Muche, Diresibachew H Wondimu, Milkessa B Midekssa, Endeshaw C Abebe, Melaku M Agidew, Tekile M Ayele, Edgeit A Zewde, Anemut T Mulu, Assefa A Teshome, Nega D Baye, Awgichew B Teklemariam, Daniel A Bekele, Gutema J Muleta","doi":"10.23736/S0022-4707.24.16047-1","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16047-1","url":null,"abstract":"<p><strong>Background: </strong>Endurance performance is impacted by physiological, anthropometrical, diet, genetic, psychological, and training characteristics. Altitude can affect physiological parameters (like maximum oxygen utilization, arterial oxygen saturation (SaO<inf>2</inf>), heart rate, and blood pressure) and training characteristics (duration, frequency, and training load). Thus, this study compared physiological parameters and training characteristics between endurance runners at Ethiopian Youth Sports Academy (EYSA) and Guna Athletics Sport Club (GASC) located which are located at elevation of 2400 and 3100 meters, respectively.</p><p><strong>Methods: </strong>A comparative cross-sectional study design was used from September to November 2021. Data was obtained from a total of 120 eligible participants (30 runners and 30 controls at GASC, and 30 runners and 30 controls at EYSA). Sociodemographic and training characteristics were assessed using self-administered standardized questionnaires. SaO<inf>2</inf> and heart rate were measured using finger pulse-oximetry (Nellcor, Oxim N-65; Covidien, Dublin, Ireland). Blood pressure was measured by Folee Digital Blood Pressure Monitor DX-B1 (Jiangsu Folee Medical Equipment Co., Ltd., Zhenjiang, China).</p><p><strong>Results: </strong>The runners of GASC had significantly lower resting SaO<inf>2</inf>, SaO<inf>2</inf> immediately after maximal exertion, training (frequency and load) than runners of EYSA in both sexes. Runners of Guna Athletics Sport Club (RGASC) had significantly higher maximum oxygen utilization (VO<inf>2</inf>max) than Runners Ethiopian Youth Sports Academy (REYSA) in both sexes. Severe exercise-induced hypoxemia (EIAH) and moderate EIAH were developed by male runners of GASC and EYSA respectively. Besides, female runners GASC and EYSA developed moderate and mild EIAH, respectively.</p><p><strong>Conclusions: </strong>Conclusively, there were significant differences in physiological parameters and training load between RGASC and REYSA. High altitude (3100 meters) may have a greater impact on the above variables than moderate hypoxia (2400 meters above sea level). Hence, endurance runner coaches should give emphasis to these variables.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142391404","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}
引用次数: 0
Immediate effects of electronic stimulation to the plantar foot on foot function and postural stability during landing. 电子刺激足底对足部功能和着地时姿势稳定性的直接影响。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-03 DOI: 10.23736/S0022-4707.24.16091-4
Takumi Okunuki, Kazuki Wakamiya, Ryusei Yamaguchi, Toshihiro Maemichi, Zijian Liu, Yuki Ogawa, Yusuke Kobayashi, Hideaki Nagamoto, Takuma Hoshiba, Tsukasa Kumai
{"title":"Immediate effects of electronic stimulation to the plantar foot on foot function and postural stability during landing.","authors":"Takumi Okunuki, Kazuki Wakamiya, Ryusei Yamaguchi, Toshihiro Maemichi, Zijian Liu, Yuki Ogawa, Yusuke Kobayashi, Hideaki Nagamoto, Takuma Hoshiba, Tsukasa Kumai","doi":"10.23736/S0022-4707.24.16091-4","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.16091-4","url":null,"abstract":"<p><strong>Background: </strong>Sports injuries often occur during landing, necessitating postural stability for injury prevention. Electrical stimulation of the plantar foot induces activities of the intrinsic foot muscles and improves somatosensory and postural stability during landing. However, this effect remains unclear. Therefore, the aim of this study was to investigate the immediate effects of electrical stimulation on the activities of the intrinsic foot muscles, plantar somatosensory system, and postural stability during landing.</p><p><strong>Methods: </strong>Twenty-two college athletes were divided into an electrical stimulation group and a control group. Electrical stimulation was applied to the plantar foot using a commercial device. The toe function and plantar tactile sensations were evaluated. The activities of the intrinsic muscles and the parameters of the ground reaction force were measured and calculated. We compared pre- and postintervention outcomes.</p><p><strong>Results: </strong>In the electrical stimulation group, two subjects showed improvement in toe function, and plantar tactile sensation improved significantly postintervention. The control group exhibited no significant change in plantar tactile sensation. A significant interaction was observed in anteroposterior postural stability during landing, notably improving in the electrical stimulation group.</p><p><strong>Conclusions: </strong>Electrical stimulation of the plantar foot immediately improved toe function, plantar tactile sensation, and postural stability during landing. Such stimulation would be beneficial in preventing sports injuries.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365647","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}
引用次数: 0
Validation of steps countering recorded with a smartwatch. 验证智能手表记录的步数。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-03 DOI: 10.23736/S0022-4707.24.15888-4
David Cyrol, Sven Bechtold, Hendrik MATTHIEßEN, Stefan Sammito
{"title":"Validation of steps countering recorded with a smartwatch.","authors":"David Cyrol, Sven Bechtold, Hendrik MATTHIEßEN, Stefan Sammito","doi":"10.23736/S0022-4707.24.15888-4","DOIUrl":"https://doi.org/10.23736/S0022-4707.24.15888-4","url":null,"abstract":"<p><strong>Background: </strong>Activity trackers are becoming increasingly popular in everyday life, sport and research. Accurate measurement of step counts is essential for understanding an individual's daily activity levels and promoting healthier lifestyles. As the sensor technology has become very sophisticated, such a device can be worn on the body for several hours or days without restricting the subject's daily activities. The aim of this study was to evaluate the accuracy of a commercially available wrist-worn pedometer in accurately recording step counts.</p><p><strong>Methods: </strong>A total of twenty-one subjects participated in this comparative study by running at various speeds in a laboratory setting while wearing a Garmin Forerunner 245 Music watch (Garmin Ltd, Schaffhausen, Switzerland) on each wrist. Simultaneously, their steps were recorded by a camera system. The step counts recorded by the pedometer were compared with the counts obtained by the camera system. Descriptive statistical analyses such as Pearson correlation and Bland-Altman plots were used to assess the accuracy and reliability of the pedometer.</p><p><strong>Results: </strong>For most settings the results on the treadmills showed a high correlation between the pedometer and the camera system. On the step machine the results showed a low correlation between the pedometer and the camera system, the pedometer showed a systematic bias by consistently overestimating the number of steps. Bland-Altman plots showed that the results were within the limits of agreement.</p><p><strong>Conclusions: </strong>Although pedometers provide a convenient tool for monitoring step count, this study highlights some limitations and potential inaccuracies of a commercially available pedometer. Our study indicates that the Garmin watch is sufficiently accurate to be used as a measurement tool in a treadmill running environment.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365649","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}
引用次数: 0
The FIFA 11+ injury prevention program reduces the incidence of lower extremity injuries in football players: a systematic review and meta-analysis. FIFA 11+ 损伤预防计划可降低足球运动员下肢损伤的发生率:系统回顾和荟萃分析。
IF 1.2 4区 医学
Journal of Sports Medicine and Physical Fitness Pub Date : 2024-10-03 DOI: 10.23736/S0022-4707.24.15910-5
Omar W Althomali, Ahmed A Ibrahim, Amawi F Algharbi, Shahad S Alshammari, Shahad N Alajlan, Joud A Albaqawi, Asma F Alshammari, Bodor Bin Sheeha, Hisham M Hussein
{"title":"The FIFA 11+ injury prevention program reduces the incidence of lower extremity injuries in football players: a systematic review and meta-analysis.","authors":"Omar W Althomali, Ahmed A Ibrahim, Amawi F Algharbi, Shahad S Alshammari, Shahad N Alajlan, Joud A Albaqawi, Asma F Alshammari, Bodor Bin Sheeha, Hisham M Hussein","doi":"10.23736/S0022-4707.24.15910-5","DOIUrl":"10.23736/S0022-4707.24.15910-5","url":null,"abstract":"<p><strong>Introduction: </strong>The FIFA 11+ preventive program is designed to reduce the incidence of injury in sports. However, to gain a better understanding of its effect a systematic review and meta-analysis is needed. The current review aims to investigate the effect of the FIFA 11+ preventive program on injury incidence among male and female football players.</p><p><strong>Evidence acquisition: </strong>This study used Scopus, PEDro, SPORTDiscus, and ProQuest as data sources. The initial selection of the studies, thorough assessment of the tile, and abstract. Extraction of the necessary study data was conducted by two independent researchers. Another two independent researchers assessed the quality of each included study against 39 used criteria. These criteria were combined from several popular quality assessment scales. The incidence of injuries measured in the lower extremities in football players after addressing the FIFA11+ was the outcome of interest.</p><p><strong>Evidence synthesis: </strong>This review included 12 trials of variable methodological quality from which 10 trials were selected for the meta-analysis. In general, the FIFA11+ program showed a significant reduction (P<0.1) in lower limb injury incidence for male young and adults in comparison to other programs. However, evidence of its effectiveness in females is lacking and more studies are needed.</p><p><strong>Conclusions: </strong>The FIFA 11+ program is recommended to be used and implemented as a preventive strategy in males. Although, the result showed a significant reduction in injury incidence in adult males, heterogeneity between studies is high which may reduce the generalizability of the results. More studies are needed to investigate the effect of the FIFA 11+ program on females.</p>","PeriodicalId":17013,"journal":{"name":"Journal of Sports Medicine and Physical Fitness","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365648","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}
引用次数: 0
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