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Percorrer por autor "Marques, Tiago José Santos"

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  • The effect of focus of attention during a single bout of resistance exercise on plantarflexion torque complexity and cortical drive in older adults : a randomized controlled trial
    Publication . Marques, Tiago José Santos; Vaz, João Pedro Casaca de Rocha
    Introduction: Ageing is accompanied by impairments in neuromuscular function, contributing to reduced force control, increased muscle co-contraction during gait, and diminished adaptability, ultimately increasing the risk of falling. Resistance training and attentional focus strategies have independently been proposed as potential modulators of these deficits, yet their combined effect remains unclear, especially in older adults. The present study investigated how different attentional focus instructions during a single bout of plantarflexion resistance training influence force control and the underlying neurophysiological mechanisms in this population. Methods: 23 participants (≥ 60 years old) were screened and homogeneously randomized into internal, external, or visual (distal) external focus groups after a familiarization session. In the evaluation session, neuromuscular and cortical drive measures were obtained before and after a single standardized seated calf raise resistance training bout. Results: No group-related differences were observed. However, acute pre- to post-training effects emerged across all groups, including reduced maximal force production, increased torque variability (coefficient of variation), and decreased corticospinal inhibition. Torque complexity and intracortical measures remained unchanged. Conclusion: These findings suggest that attentional focus strategies applied during a single resistance training session are not sufficient to modify force control or cortical mechanisms in older adults. Nonetheless, the observed neuromuscular fatigue and corticospinal modulation highlight this population’s acute adaptations to a single resistance training session.
    2025-12-17Dissertação de mestrado Acesso restrito Ver mais