Effects of grip position and pitching speed on baseball bat swing

Kawabata, Kuniyo; Ito, Akira

doi:10.5432/jjpehss.11097

Cited by 2 publications

(9 citation statements)

References 7 publications

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“…The batter performed the swing with the chock-up grip position (hands oneˆst above the normal grip) only in the third swing. This was referred to as the chock-up grip position by Kawabata and Ito (2012). The participants were required to swing as fast as possible.…”

Section: Experimental Task Proceduresmentioning

confidence: 99%

“…Katsumata and Kawai (1996) reported that a baseball swing is executed after the batter stepsˆrmly on the ground with the front leg. Moreover, Kawabata and Ito (2012) deˆned the time to peak GRF in front leg as swing initiation. Therefore, the signiˆcant delay in the time to peak GRF in the third swing in the present study indicates the delay of the swing initiation.…”

Section: Muscle Activation Characteristicsmentioning

confidence: 99%

“…Previous studies reported that when the choke-up grip was used, the total swing time (time from front leg oŠ ground to bat ball impact) was decreased owing to the decrement of time during the stride phase (time from front leg oŠ ground to front leg contact with the ground) (DeRenne et al, 2010;Escamilla et al, 2009). In contrast, other studies reported no signiˆcant changes in swing time after a front leg comes in contact with the ground (time from front leg contact with the ground to bat ball impact) (Escamilla et al, 2009;Kawabata and Ito, 2012;Shimada et al, 2008). Moreover, in the choke-up grip position, compared with the normal grip position, a signiˆcant decrease (DeRenne and Blitzbau, 1990;DeRenne et al, 2010;Escamilla et al, 2009;Kawabata and Ito, 2012;Watanabe et al, 2006) and no diŠerence in bat swing speed (Shimada et al, 2008) have been reported.…”

Section: Introductionmentioning

confidence: 95%

“…In contrast, other studies reported no signiˆcant changes in swing time after a front leg comes in contact with the ground (time from front leg contact with the ground to bat ball impact) (Escamilla et al, 2009;Kawabata and Ito, 2012;Shimada et al, 2008). Moreover, in the choke-up grip position, compared with the normal grip position, a signiˆcant decrease (DeRenne and Blitzbau, 1990;DeRenne et al, 2010;Escamilla et al, 2009;Kawabata and Ito, 2012;Watanabe et al, 2006) and no diŠerence in bat swing speed (Shimada et al, 2008) have been reported. These results suggest that using the choke-up grip may have little eŠect on swing time, and the eŠectiveness that the coach or player considers will not be consistent with the actual eŠect of using the choke-up grip on swing.…”

Section: Introductionmentioning

confidence: 95%

“…Many previous studies have measured the normal and choke-up grip position conditions separately in each experimental block, such as one block of 10 bats with the normal grip and 10 bats with the choke-up grip (e.g., DeRenne et al, 2010;Escamilla et al, 2009;Kawabata and Ito, 2012). However, in baseball, the batter will change the grip position from normal to choke-up grip during 1 at-bat.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Effects of Changes in Bat Grip Position on Baseball Bat Swing Timing, Ground Reaction Force, and Muscle Activation Characteristics*

Ohta

Nakamoto

2015

Int. J. Sport Health Sci.

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This study aimed to clarify the eŠects of changing to a short bat grip position from the long bat grip position on baseball bat swing timing, peak ground reaction force with the front leg, and activation of the upper and lower limb muscles.Nine male college baseball players participated in this study. By using a batting simulator, the coincident timing task was to swing the bat coincidentally with the arrival timing of a moving target by using the long or short bat grip position. The batter performed 10 sets of four swings for a total of 40 swings for the coincident timing task. During the four swings, the batter swung the bat by using the long grip position in theˆrst, second, and fourth swings. Only in the third swing did the batter use the short grip position. The ground reaction force with the front leg was measured, and electromyograms of the upper and lower limb muscles were obtained during the coincident timing task.Our results indicated no signiˆcant diŠerences in absolute and variable timing errors between the long and short bat grip positions. In contrast, the constant timing error was signiˆcantly increased with the short bat grip position. Moreover, the time to peak ground reaction force and time to peak muscle activation of both the upper and lower limb muscles were signiˆcantly delayed when the short bat grip position was employed. Signiˆcant positive relationships were observed between the constant timing error and time to peak ground reaction force, which showed diŠerences between the second and third swings. No signiˆcant diŠerence in swing time was observed between the long and short bat grip positions.Theseˆndings indicate that changing to the short bat grip position from the long bat grip position will not improve the batter's swing timing. Furthermore, changing to the short bat grip position could delay the batter's swing timing, probably because the change causes a delay in swing preparation.

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Section: Experimental Task Proceduresmentioning

confidence: 99%

Section: Muscle Activation Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of Changes in Bat Grip Position on Baseball Bat Swing Timing, Ground Reaction Force, and Muscle Activation Characteristics*

Ohta

Nakamoto

2015

Int. J. Sport Health Sci.

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Examining Changes in Electromyography during Swing Performance in Various Strike Zone Locations of Collegiate Baseball Players

Williams¹,

Donahue²,

Wilson³

et al. 2021

AOASM

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Swinging a bat is considered a sequential movement requiring coordinated muscle activation during each movement phase. There are a limited number of studies investigating swing performance as it relates to electromyography. The purpose of this study was to investigate the muscle activation pattern of the stride leg in respect to the phases within the swing and throughout the various locations within the strike zone in collegiate baseball players. Surface electromyography (EMG) examined the muscle activation patterns of the stride leg gluteus maximus (GM), vastus medialis (VMO), semitendinosus (H), medial gastrocnemius (MG), and tibilais anterior (TA) in 13 Division I college baseball players. The swing was broken down into three distinct phases for analysis (stride, transition, swing) determined by the use of a motion capture system. Participants completed counterbalanced swing trials in various locations of their respective strike zone. Repeated measures ANOVA were used to examine possible differences in EMG over the strike zone independent of each phase of the swing. Significant main effect differences in percent activation and mean muscle activity of the lower extremity were seen in trials completed at various tee heights and tee placements within their respective strike zone independent of swing phase (p<.05). Significant main effect differences in percent activation were also seen in the phases of the swing for the VMO, H, MG and TA (p<0.05). This information can provide insight to strength and conditioning professionals to focus on sport specific exercises within these distinct phases of the swing.

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Effects of grip position and pitching speed on baseball bat swing

Cited by 2 publications

References 7 publications

Effects of Changes in Bat Grip Position on Baseball Bat Swing Timing, Ground Reaction Force, and Muscle Activation Characteristics*

Effects of Changes in Bat Grip Position on Baseball Bat Swing Timing, Ground Reaction Force, and Muscle Activation Characteristics*

Examining Changes in Electromyography during Swing Performance in Various Strike Zone Locations of Collegiate Baseball Players

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