Takeo Matsubayashi's research while affiliated with Japan Institute of Sports Sciences and other places

Publications (26)

Article
This study aimed to determine the best indicator to evaluate the ability to bend the pole and to clarify the mechanical factors that can influence pole bending with the run-up and pole in the same settings as those in competitions. Eight male vaulters (4.60m to 5.77m: personal best record) participated. Three-dimensional body coordinates were obtai...
Article
The purpose of this study was to analyze the relationship between the bending of the pole and the motion of both grips in the pole vault. Eight male vaulters, ranging in skill from the top international level to intercollegiate entry level (personal best record, 4m60―5m77), participated. The three-dimensional coordinates of reflective markers attac...
Article
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This study was designed to clarify the relationships between the muscle cross-sectional area of the trunk and thigh and 400-m hurdle time in 12 young adult male athletes include a bronze medalist in the world championships (height 175.4 ± 6.0 cm, body mass 67.9 ± 5.8 kg, 400-m hurdle time 47.89―55.41 s). Crosssectional images from the origin to ins...
Article
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Background: Osteogenic responses induced by training under hypoxia remain unclear. We aimed to investigate whether intermittent hypoxic resistance training affects osteogenic responses. Materials and Methods: Sixteen male participants underwent resistance training under normoxia (NRT; n = 7) or hypoxia (HRT; O2 = 14.4%, n = 9), twice a week for 8...
Article
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The purpose of this study was to clarify technical tasks that affect discus throw performance in decathletes and compare their performance with discus throwers with comparable performance. The subjects were 59 decathletes and 74 discus throwers with record throws ranging from 30 to 50 meters. The discus throwing movements were recorded with two vid...
Article
Background: This study aimed to describe changes in thoracic and pelvic movements during the acceleration phase of maximal sprinting, and to clarify which kinematic variable relates to better accelerated sprinting performance. Methods: Twelve male sprinters performed 60-m sprints, during which three-dimensional step-to-step changes in thoracic a...
Article
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This study investigated changes in lower-extremity joint work and power during the swing phase in a maximal accelerated sprinting. Twelve male sprinters performed 60-m maximal sprints while motion data was recorded. Lower-extremity joint work and power during the swing phase of each stride for both legs were calculated. Positive hip and negative kn...
Article
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The purpose of this study was to examine the effectiveness of short-term hypoxic exposure and training in the performance of competitive 400 m or 800 m runners. Fifteen female competitive 400 m and 800 m runners volunteered to participate and were assigned to either the hypoxic (n = 7) or normoxic (n = 8) group. The subjects completed 6 days of tra...
Article
The purpose of this study was to examine the relationships between running performance and the cross–sectional area of the psoas major, peak oxygen uptake, and running economy in male junior long–distance runners. The subjects were 37 male junior athletes who achieved good records in interscholastic athletic competition during 5 years (2011–2015)....
Article
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This study investigated kinematics of human accelerated sprinting through 50 m and examined whether there is transition and changes in acceleration strategies during the entire acceleration phase. Twelve male sprinters performed a 60-m sprint, during which step-to-step kinematics were captured using 60 infrared cameras. To detect the transition dur...
Article
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Hypoxia is an important modulator of endurance exercise-induced oxidative adaptations in skeletal muscle. However, whether hypoxia affects resistance exercise-induced muscle adaptations remains unknown. Here, we determined the effect of resistance exercise training under systemic hypoxia on muscular adaptations known to occur following both resista...
Conference Paper
Rate of torque development (RTD) is considered important for improving the performance in sports requiring explosive strength. Although RTD was reported to be increased after explosive-type strength training (Tillin et al. Exp Physiol 2012;97:630-41.), the effect of subsequent detraining on the increased RTD remains unclear. Therefore, this study a...
Article
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Introduction: We investigated whether intrinsic muscle contractile properties in force summation and postactivation potentiation (PAP) can be used as indices of maximal muscle strength and muscle fatigue. Methods: Twelve men participated in this study. The maximum voluntary contraction torque (MVC), torque evoked by several stimulations in the t...
Article
The aims of the study were to investigate the differences in kinematics and kinetics between the dominant and nondominant leg during single-leg jumps without arm swing, and to determine the relationship between bilateral asymmetry in isokinetic knee strength and the single-leg jump. Isokinetic knee strength and single-leg jump kinematics and kineti...
Article
Longitudinal relaxation time (T(1)) determined by 3.0-T magnetic resonance imaging of the tibialis anterior and extensor digitorum longus muscles increased gradually with muscle fatigue caused by three 120-s periods of repeated ankle dorsiflexion separated by 5-min rest periods. T(1) values decreased in the recovery period, although they remained h...
Article
The purpose of this study was to compare the snatch techniques of Japanese and international female weightlifters. Two high-speed cameras operating at 250 Hz were used to record the snatch lifts of the 5 best weightlifters in the snatch and 5 Japanese weightlifters during the 2008 Asian Weightlifting Championships held in Japan. The results reveale...
Article
Full-text available
The purpose of this paper was to clarify the effect of the arms position on the aerodynamic forces and moment during the early flight phase in ski jumping. The early flight phase is defined as 0.4 to 0.5 seconds after the take-off. We studied the aerodynamic effect caused by the arms positions during early flight phase by wind tunnel experiments an...
Article
This study aimed to examine the bilateral differences in movement and joint torques during the squat exercise by using kinematic and kinetic analyses. Eighteen long jumpers participated in this study. They performed 3 repetitions of the squat exercise with loads of 50, 70, and 90% of their 3 repetition maximum (3RM). During the exercise, their move...
Article
The purpose of this study was to examine the validity of using ultrasonography for detecting the force generated by the psoas major muscle, a muscle positioned in the deep trunk. We measured the displacement of central tendon on B-mode ultrasound images of two different longitudinal sections of the muscle during passive hip flexion-extension and is...

Citations

... Thus, the response to exercise intervention on bone remodeling could depend on exercise type and the duration and intensity of the programme. Short-term exercise training could have a higher effect on biomarkers of bone formation than bone resorption biomarkers (Honda et al., 2020;Lester et al., 2009). Furthermore, exercise regimens that incorporate resistance training could be more effective in increasing biomarkers of bone formation than exercise programmes consisting solely of aerobic training (Lester et al., 2009). ...
... Complicating the significance of anterior pelvic tilt, greater anterior tilt is essential to achieve faster running speeds [33]. Anterior pelvic tilt has also been found to be coupled with hip extension during running [34]. ...
... Researchers explored the underlying mechanism of hamstring injury through anatomical, kinematic, and kinetic analyses of sprinting [14,[18][19][20]. The injury's timing, location and tissue involved are the discussions' foci due to the discordance of muscle-tendon length and force changes in leg swing progression throughout the gait cycle [15,[21][22][23][24]. However, the reasons and mechanisms for why hamstring injuries tend to occur proximally remain unclear. ...
... The researchers used the experimental method by following the experimental design of the two groups, one experimental and the other controlling using The pre and post measurements for both groups. The research sample was chosen by the intentional method and included (20) students in the second year at the Faculty of Physical Education for Boys, Zagazig University ...
... New insight regarding muscle strength and hypertrophy responses with resistance training performed in different levels of hypoxia is starting to form with a postulation that the combination of lower aerodynamic resistance and/or increased anaerobic metabolism enhances motor unit recruitment patterns and metabolic cost at higher altitudes [143]. In this regard, the combination of moderate hypoxia and resistance exercise has been demonstrated to improve aspects of anabolic (muscular strength and hypertrophy) [144][145][146][147][148][149] and overall body composition [134] (Table 2). These findings agree with other studies incorporating upper and lower body resistance training (70% of 1-RM, 5 × 10 repetitions) between 5 and 8 weeks that have reported a 1-2% reduction in fat mass in severe hypoxia (~ 3000-3900 m), although no statistical significance was noted when compared to resistance training in normoxia [146,149]. ...
... Some previous studies have shown that the cross-sectional area (CSA) of muscles is important for performance in longdistance runners. 7,8 Yamanaka et al 7 reported that a 5000-m seasonal best time in long-distance runners was significantly correlated with the CSA of psoas major, also known as a hipflexion muscle. This result suggests that a long-distance runner who has a larger CSA of psoas major could be faster over 5000 m. ...
... Acceleration is of importance in sprinting, as the transition from a stationary starting position to achieve maximum sprinting velocity as fast as possible is a defining factor for sprinting performance [3], [17], [20]. Thus, power, namely the ability to apply force when moving fast, is essential for the effectiveness of the sprint start and the following acceleration phase [14], [16]. ...
... During the 1st and 16th sessions the subjects were exposed to hypoxia from 15 min before the resistance exercise session until 60 min after the resistance exercise session. The study demonstrated greater increases in muscular endurance and angiogenesis in skeletal muscle following resistance training under systemic hypoxia [23]. ...
... 12 Furthermore, intrinsic muscle contractile properties, measured from the viewpoint of the summation of contraction, might serve as an index to estimate the changes in muscle function with aging, 2 muscle contractile properties without the influence of muscle-tendon slack, 19 , 21 and the capacity of maximal muscle strength with or without fatigue, and the capacity of fatigue resistance. 23 The summation of contraction is a fundamental and interesting phenomenon for increasing force in muscle physiology. 6 , 17 In particular, summation effects during the early phase of tetanic summation related to both the onset of rapid force output in human skeletal muscle and to joint movement. ...
... Descriptive data of the dependent variables are presented as mean and standard deviation (SD). The bilateral asymmetry index was calculated for each parameter according to the following formula [34]: ...