Spatial and Temporal Adaptations That Accompany Increasing Catching Performance During Learning

Mazyn, Liesbeth; Lenoir, Matthieu; Montagne, Gilles; Savelsbergh, Geert J.P.

doi:10.3200/jmbr.39.6.491-502

Cited by 15 publications

(12 citation statements)

References 31 publications

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“…In accordance with previous reports [16], [17] both values increased with increasing T, i.e. subjects tended to intercept the target closer to the shoulder when facing faster balls (impact index: β T = 0.68; t C −t B : β T = 0.09).…”

Section: Resultssupporting

confidence: 92%

“…While we found a striking inter-individual variability in the kinematic features of interceptive movements we also found dependences of movement kinematics on flight conditions similar to those reported in previous studies [15], [16], [17], [37], [38] (see Table 1). LT was not significantly affected by ball arrival time and height (p T = 0.21; pz = 0.17) and did not vary across subjects (AIC lmm >AIC lm ).…”

Section: Resultssupporting

confidence: 90%

“…The rest of the subjects caught the ball at intermediate interception index ranging between 0.6 and 0.75 (see Figure 4B). [16], [17]. In high launches, S 2 , S 3 , S 4 and S 5 maintained impact indexes values similar to those observed in low launches.…”

Section: Resultssupporting

confidence: 73%

“…For instance, the place and time of interception could be predicted before initiating the catching movement [9], [10], or the hand could move toward the target trajectory continuously guided by visual information [10], [11]. In many conditions, spatio-temporal redundancy allows for scaling movement duration and velocity [12], [13], [14], [15] or changing the interception point [16], [17] according to target speed. Adjustments of the spatio-temporal characteristics of the effector trajectory may be the result of a tradeoff between spatial accuracy, decreasing with effector speed, and temporal accuracy, increasing with effector speed [6], [13] as well as a tradeoff between variability due to sensory noise and variability due to motor noise [18], [19].…”

Section: Introductionmentioning

confidence: 99%

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Catching a Ball at the Right Time and Place: Individual Factors Matter

et al. 2012

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Intercepting a moving object requires accurate spatio-temporal control. Several studies have investigated how the CNS copes with such a challenging task, focusing on the nature of the information used to extract target motion parameters and on the identification of general control strategies. In the present study we provide evidence that the right time and place of the collision is not univocally specified by the CNS for a given target motion; instead, different but equally successful solutions can be adopted by different subjects when task constraints are loose. We characterized arm kinematics of fourteen subjects and performed a detailed analysis on a subset of six subjects who showed comparable success rates when asked to catch a flying ball in three dimensional space. Balls were projected by an actuated launching apparatus in order to obtain different arrival flight time and height conditions. Inter-individual variability was observed in several kinematic parameters, such as wrist trajectory, wrist velocity profile, timing and spatial distribution of the impact point, upper limb posture, trunk motion, and submovement decomposition. Individual idiosyncratic behaviors were consistent across different ball flight time conditions and across two experimental sessions carried out at one year distance. These results highlight the importance of a systematic characterization of individual factors in the study of interceptive tasks.

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

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Catching a Ball at the Right Time and Place: Individual Factors Matter

et al. 2012

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“…In fact, spatial aspects of the performance, such as the hip and shoulder angular displacements, for novices and experts alike were similar before and after practice, while their temporal characteristics demonstrated practice and novice-versus-expert effects. Similarly, Mazyn, Lenoir, Montagne, and Savelsbergh (2007) observed initial practice effects in ball catching by a novice group due to changes in the spatial characteristics of their performance (e.g., hand placement). In contrast, temporal characteristics improved toward the end of the practice period.…”

Section: Discussionmentioning

confidence: 84%

High Bar Swing Performance in Novice Adults

Busquets

Marina

Irurtia

et al. 2011

Research Quarterly for Exercise and Sport

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An individual's a priori talent can affect movement performance during learning. Also, task requirements and motor-perceptual factors are critical to the learning process. This study describes changes in high bar swing performance after a 2-month practice period. Twenty-five novice participants were divided by a priori talent level (spontaneous-talented [ST] and nonspontaneous-talented [NST]) and compared to experienced gymnasts. Additionally, we assessed their perception of their performance level before and after practice. We defined three events independently for hip (H) and shoulder (S) angle joints and for the lag between consecutive events (phases [P]): the smallest angle during downswing (P1H, P1S), the largest angle after P1 (P2H, P2S), and the smaller angle during upswing (P3H, P3S). Movement performance variables were the maximum elevation on the downswing (Pi) and the upswing (Pf), and the total path between both (swing amplitude). Data were collected during pre- and postpractice sessions by two video cameras. At the end of both sessions, participants drew a sketch to represent their perception of their performance level relative to the Pi, Pf and the hip events. Results showed a similar practice effect in the swing amplitude in both novice groups. However the ST group 's performance and perception variables on the downswing improved more than the NST group due to practice. This study suggests that (a) downswing improvements were easier than in the upswing, possibly due to familiarity of the visual reference in combination with proprioceptive feedback; and (b) being ST may involve a better orfaster gain in perception of self-action compared to NST.

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To know or not to know: influence of explicit advance knowledge of occlusion on interceptive actions

et al. 2011

Self Cite

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This study examined how explicit advance knowledge might influence adaptive behavior to visual occlusions. Catching performance and kinematics of good ball catchers were compared between no, early and late occlusion trials. Discrete visual occlusions of 400 ms, occurring early or late in the ball's approach trajectory, were randomly interspersed between no occlusion trials. In one condition, the presence and type of occlusion were announced a priori (expected), whereas in another condition no such information was provided (unexpected). Expectation of occlusion resulted in an adapted limb transport and increased grasping time, whereas in the unexpected condition a higher peak of wrist velocity was evident for all occlusion conditions. The observed different adaptations cannot be explained by trial-by-trial adaptations alone and instead provide evidence for the influence of explicit advance knowledge in the motor response of interceptive actions.

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Spatial and Temporal Adaptations That Accompany Increasing Catching Performance During Learning

Cited by 15 publications

References 31 publications

Catching a Ball at the Right Time and Place: Individual Factors Matter

Catching a Ball at the Right Time and Place: Individual Factors Matter

High Bar Swing Performance in Novice Adults

To know or not to know: influence of explicit advance knowledge of occlusion on interceptive actions

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