The Effects of Sporting and Physical Practice on Visual and Kinesthetic Motor Imagery Vividness: A Comparative Study Between Athletic, Physically Active, and Exempted Adolescents.

The interest of motor imagery practice on performance and motor learning is well-established. However, the impact of sporting and physical practice on motor imagery vividness is currently unclear, especially in youth. Two-hundred-and-forty adolescents were recruited to form different groups.

Effect of recovery mode on exercise time to exhaustion, cardiorespiratory responses, and blood lactate after prior, intermittent supramaximal exercise.

This study aimed to determine the effect of 3 different recovery modes (passive [PR], active [AR], and dynamic stretching [SR]) on exercise time to exhaustion (Tlim) and cardiorespiratory and blood lactate responses during supramaximal exercise. Exercise sessions consisted of 2 series of 4 repeated, intermittent supramaximal cycling exercise interspersed in random order with PR, AR, or SR before the supramaximal continuous cycling time limit (Tlim) exercise test performed at 120% of maximal aerobic power. Ten healthy volunteer soccer athletes aged 25.

Electromyographic (EMG) analysis of quadriceps muscle fatigue in children with cerebral palsy during a sustained isometric contraction.

The purpose of this investigation was to determine whether changes in surface electromyography (EMG) data during an isometric muscle protocol, in combination with maximal voluntary isometric force, provide information on fatigue occurrence and exercise limitation in children with cerebral palsy. Twelve children with cerebral palsy and 10 age-matched controls completed an assessment of quadriceps muscle fatigue on an isokinetic device with surface EMG measurements, during a sustained isometric contraction at 50% of the maximal voluntary isometric force. The EMG data collected in participants with cerebral palsy suggest that muscle fatigue occurred sooner in children with cerebral palsy relative to the age-matched controls.