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  • Title: Both anticipatory and compensatory postural adjustments are adapted while catching a ball in unstable standing posture.
    Author: Scariot V, Rios JL, Claudino R, Dos Santos EC, Angulski HBB, Dos Santos MJ.
    Journal: J Bodyw Mov Ther; 2016 Jan; 20(1):90-97. PubMed ID: 26891642.
    Abstract:
    The main objective of this study was to analyze the role of balance exercises on anticipatory (APA) and compensatory (CPA) postural adjustments in different conditions of postural stability. Sixteen subjects were required to catch a ball while standing on rigid floor, trampoline and foam cushion surfaces. Electromyographic activities (EMG) of postural muscles were analyzed during time windows typical for APAs and CPAs. Overall there were a reciprocal activation of the muscles around the ankle and co-activations between ventral and dorsal muscles of the thigh and trunk during the catching a ball task. Compared to the rigid floor, the tibialis anterior activation was greater during the trampoline condition (CPA: p = 0.006) and the soleus muscle inhibition was higher during foam cushion condition (APA: p = 0.001; CPA: p = 0.007). Thigh and trunk muscle activities were similar across the conditions. These results advance the knowledge in postural control during body perturbations standing on unstable surfaces.
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