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  1. Article ; Online: Effects of Various Numbers of Runs on the Success of Hamstring Injury Prevention Program in Sprinters.

    Sugiura, Yusaku / Sakuma, Kazuhiko / Fujita, Shimpei / Aoki, Kazuhiro / Takazawa, Yuji

    International journal of environmental research and public health

    2022  Volume 19, Issue 15

    Abstract: Studies have not adequately addressed the influence of fatigue, which is considered a major risk factor for hamstring injuries. Therefore, this study aimed to clarify how a muscle fatigue condition affects the success of hamstring injury prevention ... ...

    Abstract Studies have not adequately addressed the influence of fatigue, which is considered a major risk factor for hamstring injuries. Therefore, this study aimed to clarify how a muscle fatigue condition affects the success of hamstring injury prevention programs in sprinters. The study subjects were 613 collegiate male sprinters. They employed submaximal/maximal running for a large number of runs and supramaximal running for a small number of runs in daily training. The hamstring injury prevention program had become the most effective strategy in the past 24 seasons of track and field for preventing hamstring injuries. The number of sprinters who experienced hamstring injuries in three periods over the 24 seasons was recorded. The incidents of hamstring injuries during supramaximal running per athlete-seasons were 137.9, 60.6, and 6.7 for Periods I, II, and III, respectively, showing a significant decline (p < 0.01). Furthermore, the incidents of hamstring injuries during submaximal and maximal running per season showed no significant change. The results of this study indicate that by inducing muscle fatigue, a small number of runs makes hamstring injury prevention programs effective.
    MeSH term(s) Athletic Injuries/epidemiology ; Athletic Injuries/prevention & control ; Humans ; Leg Injuries ; Male ; Muscle, Skeletal/physiology ; Muscular Diseases ; Risk Factors
    Language English
    Publishing date 2022-07-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph19159375
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Prevention of Hamstring Injuries in Collegiate Sprinters.

    Sugiura, Yusaku / Sakuma, Kazuhiko / Sakuraba, Keishoku / Sato, Yamato

    Orthopaedic journal of sports medicine

    2017  Volume 5, Issue 1, Page(s) 2325967116681524

    Abstract: Background: No studies have been reported on how strength, agility, and flexibility training reduce the occurrence of hamstring injuries in sprinters. Therefore, a program for preventing hamstring injury in these athletes has not been established.: ... ...

    Abstract Background: No studies have been reported on how strength, agility, and flexibility training reduce the occurrence of hamstring injuries in sprinters. Therefore, a program for preventing hamstring injury in these athletes has not been established.
    Purpose: To document the incidence of hamstring injuries during times when different prevention strategies were employed to see whether a particular prevention program reduced their occurrence.
    Study design: Descriptive epidemiology study.
    Methods: The study subjects were a total of 613 collegiate male sprinters trained by the same coach over 24 seasons. Tow training was used throughout the research period as a normal sprint training method. The hamstring injury prevention program evolved over time. From 1988 to 1991 (period 1), prevention focused on strength training alone; from 1992 to 1999 (period 2), a combination of strength and agility training was used; and from 2000 to 2011 (period 3), the program incorporated strength, agility, and flexibility training. The incidence of hamstring injuries was compared for each of the 3 prevention strategies.
    Results: The incidence of hamstring injuries per athlete-seasons was 137.9 for period 1, 60.6 for period 2, and 6.7 for period 3. A significant difference was observed in the incidence of hamstring injury according to the different prevention programs (χ
    Conclusion: The incidence of hamstring injuries in sprinters decreased as agility and flexibility were added to strength training.
    Language English
    Publishing date 2017-01-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2706251-X
    ISSN 2325-9671
    ISSN 2325-9671
    DOI 10.1177/2325967116681524
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The effectiveness of bench press training with or without throws on strength and shot put distance of competitive university athletes.

    Sakamoto, Akihiro / Kuroda, Akihiro / Sinclair, Peter James / Naito, Hisashi / Sakuma, Kazuhiko

    European journal of applied physiology

    2018  Volume 118, Issue 9, Page(s) 1821–1830

    Abstract: Purpose: Maximum force exertion against various resistance levels (heavy-light) is commonly implemented to improve both strength- and speed-oriented components of power. Medium-light resistances allow rapid accelerations, yet incur significant ... ...

    Abstract Purpose: Maximum force exertion against various resistance levels (heavy-light) is commonly implemented to improve both strength- and speed-oriented components of power. Medium-light resistances allow rapid accelerations, yet incur significant decelerations in the later concentric phase to bring the bar to a halt, which may limit the concentric effort and, therefore, the effectiveness of training. Accordingly, ballistic actions have been recommended. This study evaluated the effectiveness of power bench press training, with the bar thrown on a Smith machine (BP
    Methods: Nine university shot-putters performed BP
    Results: The peak elbow velocity during BP
    Conclusion: When undergoing power bench press against medium-light resistances, maximum ballistic actions are important strategies for improving 1RM and shot put performance of university shot-putters.
    MeSH term(s) Acceleration ; Adult ; Athletes ; Athletic Performance/physiology ; Exercise Test/methods ; Exercise Therapy/methods ; Humans ; Male ; Muscle Strength/physiology ; Muscle, Skeletal/physiology ; Resistance Training/methods ; Universities ; Weight Lifting/physiology ; Young Adult
    Language English
    Publishing date 2018-06-21
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 124793-1
    ISSN 1439-6327 ; 1432-1025 ; 0301-5548 ; 1439-6319
    ISSN (online) 1439-6327 ; 1432-1025
    ISSN 0301-5548 ; 1439-6319
    DOI 10.1007/s00421-018-3917-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: A 100-m Sprint Time Is Associated With Deep Trunk Muscle Thickness in Collegiate Male Sprinters.

    Fujita, Shimpei / Kusano, Seiya / Sugiura, Yusaku / Sakuraba, Keishoku / Kubota, Atsushi / Sakuma, Kazuhiko / Suzuki, Yoshio / Hayamizu, Kohsuke / Aoki, Yuma / Sugita, Masaaki

    Frontiers in sports and active living

    2019  Volume 1, Page(s) 32

    Abstract: Introduction: ...

    Abstract Introduction:
    Language English
    Publishing date 2019-09-24
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2624-9367
    ISSN (online) 2624-9367
    DOI 10.3389/fspor.2019.00032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Analyses of associations between reactive oxygen metabolites and antioxidant capacity and related factors among healthy adolescents.

    Tamae, Kazuyoshi / Eto, Toshiharu / Aoki, Kazuhiro / Nakamaru, Shingo / Koshikawa, Kazunori / Sakuma, Kazuhiko / Hirano, Takeshi

    Current aging science

    2013  Volume 6, Issue 3, Page(s) 258–265

    Abstract: Evidence based on epidemiologic investigations using biochemical parameter is meaningful for health promotion and administration among adolescents. We conducted Reactive Oxygen Metabolites (ROM) and Biological Antioxidant Potentials (BAP) tests, along ... ...

    Abstract Evidence based on epidemiologic investigations using biochemical parameter is meaningful for health promotion and administration among adolescents. We conducted Reactive Oxygen Metabolites (ROM) and Biological Antioxidant Potentials (BAP) tests, along with a questionnaire survey, for a sample of 74 high school students (16.51±0.11 years of aged mean±SE), to investigate the associations between ROM, BAP, and related factors, including BMI and blood biochemical data. Venous blood samples (approximately 7cc) were collected. At the same time, each individual's information was obtained from the questionnaire. The mental health status was investigated using the Center for Epidemiologic Study Depression scale (CES-D) included in the same questionnaire. The mean values and standard errors of all variables were calculated. In addition, the relationships between ROM and BAP with these factors were analyzed. The results revealed the preferred levels of ROM (261.95 ± 9.52 U.CARR) and, BAP (2429.89±53.39 µmol/L) and blood biochemical data. Few significant relationships between two markers and related factors were found. So, we detected a cluster with an imbalance between ROM and BAP, which means low antioxidant ability, whereas the other clusters had conditions with moderate balance or good balance between them. Moreover, we determined the Oxidative stress-Antioxidant capacity ratio (OAR), using the ROM and BAP values, in order to clarify the characteristic of the detected clusters.However, comparative analyses across the three clusters did not yield significant differences in all related factors. No correlations between ROM, BAP and related factors were indicated, although significant association between ROM and BAP was observed (R2=0.1156, R=0.340, P=0.013). The reason for these results can be explained by the influences of good health and young age. On the other hand, present study suggests that some latent problems among adolescents may be related to unhealthy conditions in the future. Also, this study indicated that ROM and BAP may be useful as markers of the oxidative stress status. After this, further investigations using biomarkers based on epidemiologic design should be conducted, to reveal the reliability of the present results.
    MeSH term(s) Adolescent ; Age Factors ; Antioxidants/metabolism ; Biomarkers/blood ; Body Mass Index ; Cluster Analysis ; Female ; Health Status ; Healthy Volunteers ; Humans ; Male ; Mental Health ; Oxidative Stress ; Reactive Oxygen Species/blood ; Surveys and Questionnaires
    Chemical Substances Antioxidants ; Biomarkers ; Reactive Oxygen Species
    Language English
    Publishing date 2013-06-14
    Publishing country United Arab Emirates
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1874-6128
    ISSN (online) 1874-6128
    DOI 10.2174/18746098112059990032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Association between Yogurt Consumption and Intestinal Microbiota in Healthy Young Adults Differs by Host Gender.

    Suzuki, Yoshio / Ikeda, Keiichi / Sakuma, Kazuhiko / Kawai, Sachio / Sawaki, Keisuke / Asahara, Takashi / Takahashi, Takuya / Tsuji, Hirokazu / Nomoto, Koji / Nagpal, Ravinder / Wang, Chongxin / Nagata, Satoru / Yamashiro, Yuichiro

    Frontiers in microbiology

    2017  Volume 8, Page(s) 847

    Abstract: Human intestinal microbiota are influenced by various factors viz. diet, environment, age, gender, geographical, and socioeconomic situation, etc. among which diet has the most profound impact. However, studies investigating this impact have mostly ... ...

    Abstract Human intestinal microbiota are influenced by various factors viz. diet, environment, age, gender, geographical, and socioeconomic situation, etc. among which diet has the most profound impact. However, studies investigating this impact have mostly included subjects from diverse geographic/socioeconomic backgrounds and hence the precise effects of dietary factors on gut microbiota composition remain largely confounded. Herein, with an aim to evaluate the association between dietary habits, specifically yogurt consumption, and the gut microbiota in healthy young adults sharing similar age, lifestyle routine, geographical setting, etc., we conducted a cross-sectional study wherein 293 collegiate freshmen answered a questionnaire about their frequency of yogurt consumption over the last 2 months and provided stool specimens for microbiota analysis. Fecal microbiota were analyzed by highly sensitive reverse-transcription-quantitative-PCR assays targeting bacterial 16S rRNA molecules. Fecal organic acids were measured by HPLC. Overall, the gut microbiota were predominated (97.1 ± 8.6%) by
    Language English
    Publishing date 2017-05-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2017.00847
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Strength deficits identified with concentric action of the hip extensors and eccentric action of the hamstrings predispose to hamstring injury in elite sprinters.

    Sugiura, Yusaku / Saito, Tomoyuki / Sakuraba, Keishoku / Sakuma, Kazuhiko / Suzuki, Eiichi

    The Journal of orthopaedic and sports physical therapy

    2008  Volume 38, Issue 8, Page(s) 457–464

    Abstract: Study design: Prospective cohort study.: Objectives: In this prospective cohort study of elite sprinters, muscle strength of the hip extensors, as well as of the knee extensors and flexors, was measured to determine a possible relationship between ... ...

    Abstract Study design: Prospective cohort study.
    Objectives: In this prospective cohort study of elite sprinters, muscle strength of the hip extensors, as well as of the knee extensors and flexors, was measured to determine a possible relationship between strength deficits and subsequent hamstring injury within 12 months of testing. The method used for testing muscle strength simulated the specific muscle action during late swing and early contact phases when sprinting.
    Background: There have been no prospective studies in elite sprinters that examine the concentric and eccentric isokinetic strength of the hip extensors and the quadriceps and hamstring muscles in a manner that reflects their actions in late swing or early contact phases of sprinting. Consequently, the causal relationship between hip and thigh muscle strength and hamstring injury in elite sprinters may not be fully understood.
    Methods and measures: Isokinetic testing was performed on 30 male elite sprinters to assess hip extensors, quadriceps, and hamstring muscle strength. The occurrence of hamstring injury among the subjects was determined during the year following the muscle strength measurements. The strength of the hip extensors, quadriceps, and hamstring muscles, as well as the hamstrings-quadriceps and hip extensors- quadriceps ratios were compared.
    Results: Hamstring injury occurred in 6 subjects during the 1-year period. Isokinetic testing at a speed of 60 degrees /s revealed weakness of the injured limb with eccentric action of the hamstring muscles and during concentric action of the hip extensors. When performing a side-to-side comparison for the injured sprinters, the hamstring injury always occurred on the weaker side. Differences in the hamstrings-quadriceps and hip extensors-quadriceps strength ratios were also evident between uninjured and injured limbs, and this was attributable to deficits in hamstring strength.
    Conclusion: Hamstring injury in elite sprinters was associated with weakness during eccentric action of the hamstrings and weakness during concentric action of the hip extensors, but only when tested at the slower speed of 60 degrees /s.
    MeSH term(s) Adult ; Hip Joint/physiopathology ; Humans ; Male ; Muscle Strength ; Muscle, Skeletal/injuries ; Prospective Studies ; Running/injuries ; Running/physiology ; Thigh/physiopathology ; Young Adult
    Language English
    Publishing date 2008-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604640-x
    ISSN 1938-1344 ; 0190-6011
    ISSN (online) 1938-1344
    ISSN 0190-6011
    DOI 10.2519/jospt.2008.2575
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 2447: Show issues Location:
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