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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: 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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  4. 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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  5. Article: Development of an easily swallowed film formulation.

    Okabe, Hideaki / Suzuki, Eiji / Sugiura, Yusaku / Yanagimoto, Kaisuke / Takanashi, Yasunari / Hoshi, Masaru / Nogami, Eiji / Nakahara, Kaname / Sekiguchi, Toru / Baba, Mikoto / Saitoh, Eiichi

    International journal of pharmaceutics

    2008  Volume 355, Issue 1-2, Page(s) 62–66

    Abstract: We have developed an easily swallowed film formulation that swells and turns into a jelly instantaneously upon absorption of a small amount of saliva. The formulation's structure comprises a gelating layer on both faces of a drug-containing layer, and ... ...

    Abstract We have developed an easily swallowed film formulation that swells and turns into a jelly instantaneously upon absorption of a small amount of saliva. The formulation's structure comprises a gelating layer on both faces of a drug-containing layer, and this structure restrains the elution of a drug in the mouth. Swelling experiments confirmed the instantaneous gelation when the gelating layer absorbs purified water. Fifteen seconds after immersion in purified water, the bulk modulus of the film formulation was less than 500N/m2, which is an appropriate value for easy swallowing by elderly people. A dissolution study confirmed the delayed dissolution of glimepiride as a model drug. In a clinical study, although the stagnation at the upper esophagus was observed with a gelatin capsule, the film formulation passed the esophagus and reached the stomach quickly.
    MeSH term(s) Algorithms ; Chemistry, Pharmaceutical ; Deglutition ; Drug Compounding ; Esophagus/physiology ; Excipients ; Female ; Fluoroscopy ; Gels ; Humans ; Indicators and Reagents ; Male ; Middle Aged ; Pharynx/physiology ; Solubility ; Sulfonylurea Compounds/administration & dosage ; Tablets, Enteric-Coated ; Water
    Chemical Substances Excipients ; Gels ; Indicators and Reagents ; Sulfonylurea Compounds ; Tablets, Enteric-Coated ; Water (059QF0KO0R) ; glimepiride (6KY687524K)
    Language English
    Publishing date 2008-05-01
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 428962-6
    ISSN 1873-3476 ; 0378-5173
    ISSN (online) 1873-3476
    ISSN 0378-5173
    DOI 10.1016/j.ijpharm.2007.11.038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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    ab Jg. 2022: Lesesaal (EG)

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