Shinji Sakurai
Biographic Data
| ID | 3746523 |
|---|---|
| NAME | Shinji Sakurai |
| GIVEN NAMES | Shinji |
| FAMILY NAME | Sakurai |
| SIGNATURE | SAKURAI S |
| AFFILIATIONS | Chukyo University |
| VERIFIED | No |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 1 |
| AUTHOR COUNT | 5 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2023 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Biomechanical insights into increasing jump distance in ski jumping
This review organizes biomechanical studies aimed at increasing the jump distance in ski jumping by phase (approach, takeoff, flight, and landing) and classifies them according to hill size. Data were collected from EBSCOhost, Web of Science, and Google Scholar. A total of 1,701 records were retrieved from the databases, of which 42 met the inclusion criteria and were included in this review. At first glance, the literature appears to comprehensi…
Analyzing angular momentum in the takeoff phase of medium-hill ski jumping
This study shows that the appropriate AM CG value at takeoff was approximately 0.0391 s -1 . The study findings are expected to contribute to coaching with objective indicators
Acceptable range of timing error at bat-ball impact in baseball depends on the bat swing path
The average acceptable range of timing error was 9.36 ± 6.25 ms in time and 0.227 ± 0.163 m in distance. However, these ranges varied significantly (time: 2.48-30.40 ms; distance: 0.056-0.614 m) depending on the specific swing trajectory. Furthermore, our findings revealed that the acceptable range of timing error is not solely determined by a single swing characteristic but rather by the interplay of multiple factors, including the bat swing tra…
Comparisons of angular momentum at takeoff in six types of jumps in women's figure skating
Introduction In figure skating, various types of multirotational jumps are becoming increasingly important. Based on mechanical considerations, the angular momentum of the entire body at takeoff can increase the number of rotations in the air. This study aimed to compare and characterize the angular momentum of the entire body and each body part during six different jumps. Methods Seven female figure skaters performed six double jumps on the ice.…
Estimating flight trajectories of breaking balls from four-seam fastballs
It is widely acknowledged that understanding the physical mechanics of the flight trajectories of four-seam fastballs and breaking balls is crucial for players and coaches to enhance pitching performance. The characteristics of the flight trajectories of four-seam fastballs and breaking balls have been revealed; however, the relationship between them has not been examined. Here, we show the characteristics of the flight trajectory of breaking bal…
Estimating flight trajectories of breaking balls from four-seam fastballs
It is widely acknowledged that understanding the physical mechanics of the flight trajectories of four-seam fastballs and breaking balls is crucial for players and coaches to enhance pitching performance. The characteristics of the flight trajectories of four-seam fastballs and breaking balls have been revealed; however, the relationship between them has not been examined. Here, we show the characteristics of the flight trajectory of breaking bal…
Estimating flight trajectories of breaking balls from four-seam fastballs
It is widely acknowledged that understanding the physical mechanics of the flight trajectories of four-seam fastballs and breaking balls is crucial for players and coaches to enhance pitching performance. The characteristics of the flight trajectories of four-seam fastballs and breaking balls have been revealed; however, the relationship between them has not been examined. Here, we show the characteristics of the flight trajectory of breaking bal…
Analyzing angular momentum in the takeoff phase of medium-hill ski jumping
This study shows that the appropriate AM CG value at takeoff was approximately 0.0391 s -1 . The study findings are expected to contribute to coaching with objective indicators
Acceptable range of timing error at bat-ball impact in baseball depends on the bat swing path
The average acceptable range of timing error was 9.36 ± 6.25 ms in time and 0.227 ± 0.163 m in distance. However, these ranges varied significantly (time: 2.48-30.40 ms; distance: 0.056-0.614 m) depending on the specific swing trajectory. Furthermore, our findings revealed that the acceptable range of timing error is not solely determined by a single swing characteristic but rather by the interplay of multiple factors, including the bat swing tra…
Comparisons of angular momentum at takeoff in six types of jumps in women's figure skating
Introduction In figure skating, various types of multirotational jumps are becoming increasingly important. Based on mechanical considerations, the angular momentum of the entire body at takeoff can increase the number of rotations in the air. This study aimed to compare and characterize the angular momentum of the entire body and each body part during six different jumps. Methods Seven female figure skaters performed six double jumps on the ice.…
Biomechanical insights into increasing jump distance in ski jumping
This review organizes biomechanical studies aimed at increasing the jump distance in ski jumping by phase (approach, takeoff, flight, and landing) and classifies them according to hill size. Data were collected from EBSCOhost, Web of Science, and Google Scholar. A total of 1,701 records were retrieved from the databases, of which 42 met the inclusion criteria and were included in this review. At first glance, the literature appears to comprehensi…
Engineering (4 works) · Physics (4 works) · Aerospace Engineering (3 works) · Mathematics (3 works) · Mechanics (3 works) · Sports Performance and Training (3 works) · Winter Sports Injuries and Performance (3 works) · Angular momentum (2 works) · Ball (mathematics (2 works) · Classical mechanics (2 works)