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The effect of somatosensory input on motor imagery depends upon motor imagery capability.

Mizuguchi N, Yamagishi T, Nakata H, Kanosue K - Front Psychol (2015)

Bottom Line: We investigated that the relationship between motor imagery ability and the effect of tactile input associated with holding a tennis racket on motor imagery of the forehand and backhand swings.We speculate that tactile input associated with holding a tool improves a vividness of motor imagery of a less familiar movement, especially for those who have poor imaging ability.In the future, it will be important to clarify whether the effect of tactile input associated with holding a tool is dependent upon movement familiarity/performance level.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Sport Sciences, Waseda University , Tokorozawa, Saitama, Japan.

ABSTRACT
We investigated that the relationship between motor imagery ability and the effect of tactile input associated with holding a tennis racket on motor imagery of the forehand and backhand swings. The effect was assessed by the time utilized for motor imagery (mental chronometry). Seventeen tennis players imagined forehand and backhand swings with a forehand grip, a backhand grip or while holding nothing. In all cases, imaging the swings took longer than the time taken for a real swing. For imagery of the backhand swing, holding a racket with a backhand grip decreased the imaging time (p < 0.05) as compared to the trials with a forehand grip or while holding nothing. On the other hand, holding the racket with a backhand grip tended to increase the time required for forehand swing imagery. These results suggest that a congruent grip improves, and an incongruent grip deteriorates, motor imagery of the backhand swing. For players who took a longer time in the condition where they held nothing (i.e., poor imaging ability), the effect of a congruent backhand grip was greater (r = 0.67, p < 0.01). However, a congruent forehand grip did not improve motor imagery of the forehand swing. Since 15 of the participants in the present study favored the forehand swing compared to the backhand swing, the participants would have been more familiar with the forehand swing. Thus it would have been easy to vividly imagine the (familiar) forehand swing even when they were not holding a racket. We speculate that tactile input associated with holding a tool improves a vividness of motor imagery of a less familiar movement, especially for those who have poor imaging ability. In the future, it will be important to clarify whether the effect of tactile input associated with holding a tool is dependent upon movement familiarity/performance level.

No MeSH data available.


Related in: MedlinePlus

The durations of imaginary 10 consecutive swings for (A) forehand swings and (B) backhand swings. FIF, forehand swing imagery with holding a racket with backhand grip condition; FIB, forehand swing imagery with holding a racket with backhand grip condition; FIN, forehand swing imagery without holding; BIF, backhand swing imagery with holding a racket with holding forehand grip condition; BIB, backhand swing imagery with holding a racket with backhand grip condition; BIN, backhand swing imagery without holding condition. *p < 0.05, **p < 0.01.
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Figure 2: The durations of imaginary 10 consecutive swings for (A) forehand swings and (B) backhand swings. FIF, forehand swing imagery with holding a racket with backhand grip condition; FIB, forehand swing imagery with holding a racket with backhand grip condition; FIN, forehand swing imagery without holding; BIF, backhand swing imagery with holding a racket with holding forehand grip condition; BIB, backhand swing imagery with holding a racket with backhand grip condition; BIN, backhand swing imagery without holding condition. *p < 0.05, **p < 0.01.

Mentions: Average durations of actual and imagined swings are shown in Table 1. Normalized durations of imagined forehand swing and backhand swing for all conditions are shown in Figures 2A,B. There was no significant main effect for the factors of swing and grip. However, a swing-grip interaction was found [F(2,32) = 11.86, p < 0.01, = 0.43]. Post hoc tests for forehand swing imagery showed that the duration was significantly longer in condition FIB than in FIF (p < 0.05; Figure 2A). This indicates that the time spent for forehand swing imagery with a backhand grip was increased as compared to that with a forehand grip. In addition, the duration tended to be greater in condition FIB than in FIN (p = 0.069, uncorrected; Figure 2A). For imagery of the backhand swing, the duration of imagery was significantly shorter in the BIB condition than in BIF or BIN (p < 0.01, respectively; Figure 2B). This indicates that the time spent for backhand swing imagery with a backhand grip decreased as compared to that with the forehand grip or while not holding a racket.


The effect of somatosensory input on motor imagery depends upon motor imagery capability.

Mizuguchi N, Yamagishi T, Nakata H, Kanosue K - Front Psychol (2015)

The durations of imaginary 10 consecutive swings for (A) forehand swings and (B) backhand swings. FIF, forehand swing imagery with holding a racket with backhand grip condition; FIB, forehand swing imagery with holding a racket with backhand grip condition; FIN, forehand swing imagery without holding; BIF, backhand swing imagery with holding a racket with holding forehand grip condition; BIB, backhand swing imagery with holding a racket with backhand grip condition; BIN, backhand swing imagery without holding condition. *p < 0.05, **p < 0.01.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4325658&req=5

Figure 2: The durations of imaginary 10 consecutive swings for (A) forehand swings and (B) backhand swings. FIF, forehand swing imagery with holding a racket with backhand grip condition; FIB, forehand swing imagery with holding a racket with backhand grip condition; FIN, forehand swing imagery without holding; BIF, backhand swing imagery with holding a racket with holding forehand grip condition; BIB, backhand swing imagery with holding a racket with backhand grip condition; BIN, backhand swing imagery without holding condition. *p < 0.05, **p < 0.01.
Mentions: Average durations of actual and imagined swings are shown in Table 1. Normalized durations of imagined forehand swing and backhand swing for all conditions are shown in Figures 2A,B. There was no significant main effect for the factors of swing and grip. However, a swing-grip interaction was found [F(2,32) = 11.86, p < 0.01, = 0.43]. Post hoc tests for forehand swing imagery showed that the duration was significantly longer in condition FIB than in FIF (p < 0.05; Figure 2A). This indicates that the time spent for forehand swing imagery with a backhand grip was increased as compared to that with a forehand grip. In addition, the duration tended to be greater in condition FIB than in FIN (p = 0.069, uncorrected; Figure 2A). For imagery of the backhand swing, the duration of imagery was significantly shorter in the BIB condition than in BIF or BIN (p < 0.01, respectively; Figure 2B). This indicates that the time spent for backhand swing imagery with a backhand grip decreased as compared to that with the forehand grip or while not holding a racket.

Bottom Line: We investigated that the relationship between motor imagery ability and the effect of tactile input associated with holding a tennis racket on motor imagery of the forehand and backhand swings.We speculate that tactile input associated with holding a tool improves a vividness of motor imagery of a less familiar movement, especially for those who have poor imaging ability.In the future, it will be important to clarify whether the effect of tactile input associated with holding a tool is dependent upon movement familiarity/performance level.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Sport Sciences, Waseda University , Tokorozawa, Saitama, Japan.

ABSTRACT
We investigated that the relationship between motor imagery ability and the effect of tactile input associated with holding a tennis racket on motor imagery of the forehand and backhand swings. The effect was assessed by the time utilized for motor imagery (mental chronometry). Seventeen tennis players imagined forehand and backhand swings with a forehand grip, a backhand grip or while holding nothing. In all cases, imaging the swings took longer than the time taken for a real swing. For imagery of the backhand swing, holding a racket with a backhand grip decreased the imaging time (p < 0.05) as compared to the trials with a forehand grip or while holding nothing. On the other hand, holding the racket with a backhand grip tended to increase the time required for forehand swing imagery. These results suggest that a congruent grip improves, and an incongruent grip deteriorates, motor imagery of the backhand swing. For players who took a longer time in the condition where they held nothing (i.e., poor imaging ability), the effect of a congruent backhand grip was greater (r = 0.67, p < 0.01). However, a congruent forehand grip did not improve motor imagery of the forehand swing. Since 15 of the participants in the present study favored the forehand swing compared to the backhand swing, the participants would have been more familiar with the forehand swing. Thus it would have been easy to vividly imagine the (familiar) forehand swing even when they were not holding a racket. We speculate that tactile input associated with holding a tool improves a vividness of motor imagery of a less familiar movement, especially for those who have poor imaging ability. In the future, it will be important to clarify whether the effect of tactile input associated with holding a tool is dependent upon movement familiarity/performance level.

No MeSH data available.


Related in: MedlinePlus