Search Results - Jeffreys, I.

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  1. 1

    Mixed training programs applied to young soccer players: Effects on speed-power abilities

    Freitas, T. T., Pereira, L. A., Alcaraz, P. A., Azevedo, P. H. S. M., Zanetti, V., Pantarotto, N. B., Reis, V. P., Jeffreys, I., Loturco, I. “…Jeffreys, I.…”
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  2. 2

    Interrelationships between multiple speed tests in youth soccer: are players equally efficient at performing different sprint and change of direction tasks?

    Freitas, T.T., Pereira, L. A., Alcaraz, P. E., Cadore, E. L., Grazioli, R., Azevedo, P. H. S. M., Jeffreys, I., Loturco, I. “…Jeffreys, I.…”
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  3. 3

    Multidirectional sprints in soccer: are there connections between linear, curved, and change-of-direction speed performances?

    Freitas, T. T., Jeffreys, I., Reis, V. P., Fernandes, V., Alcaraz, P. E., Pereira, L. A., Loturco, I. “…Jeffreys, I.…”
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  4. 4

    Short-term detraining does not impair strength, speed, and power performance in elite young soccer players

    Pereira, L. A., Freitas, T. T., Pivetti, B., Alcaraz, P. E., Jeffreys, I., Loturco, I.
    Published in Sports (2020)
    “…Jeffreys, I.…”
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  5. 5

    Change-of-direction, speed and jump performance in soccer players: a comparison across different age-categories

    Loturco, I., Jeffreys, I., Abad, C. C. C., Kobal, R., Zanetti, V., Pereira, L. A., Nimphius, S.
    Published in Journal of Sports Sciences (2020)
    “…Jeffreys, I.…”
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  6. 6

    Resisted sprint velocity in female soccer players: Influence of physical capacities

    Loturco, I., Jeffreys, I., Kobal, R., Reis, V. P., Fernandes, V., Rossetti, M., Pereira, L. A., McGuigan, M. “…Jeffreys, I.…”
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  7. 7

    Vertical force production in soccer: Mechanical aspects and applied training strategies.

    Loturco, I., Bishop, C., Freitas, T. T., Pereira, L. A., Jeffreys, I.
    Published in Strength and Conditioning Journal (2020)
    “…Jeffreys, I.…”
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  8. 8

    Acceleration and speed performance of Brazilian elite soccer players of different age-categories

    Loturco, I., Jeffreys, I., Kobal, R., Cal Abad, C. C., Ramirez-Campillo, R., Zanetti, V., Pereira, L. A., Nakamura, F. Y.
    Published in Journal of Human Kinetics (2018)
    “…Jeffreys, I.…”
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  9. 9

    Maximum acceleration performance of professional soccer players in linear sprints: Is there a direct connection with change-of-direction ability?

    Loturco, I., Pereira, L. A., Freitas, T. T., Alcaraz, P. E., Zanetti, V., Bishop, C., Jeffreys, I.
    Published in PLOS ONE (2019)
    “…Jeffreys, I.…”
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  10. 10

    Delivering a gamespeed-focused speed and agility development program in an English Premier League Soccer Academy.

    Jeffreys, I., Huggins, S., Davies, N.
    Published in Strength and Conditioning Journal (2018)
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  11. 11

    The current use of GPS, its potential, and limitations in soccer

    Hennessy, L., Jeffreys, I.
    Published in Strength and Conditioning Journal (2018)
    “…Jeffreys, I.…”
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  12. 12

    Change-of direction deficit in elite young soccer players

    Loturco, I., Nimphius, S., Kobal, R., Bottino, A., Zanetti, V., Pereira, L. A., Jeffreys, I. “…Jeffreys, I.…”
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  13. 13

    The effects of anthropometry and leg muscle power on drive and transition phase of acceleration: a longitudinal study on young soccer players

    Nikolaidis, P. T., Ingebrigtsen, J., Jeffreys, I. “…Jeffreys, I.…”
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