In-game monitoring of adolescent handball players: a preliminary examination of associations between external load parameters and objective and subjective fatigue markers.

Moreover, partially significant moderate to strong magnitude negative and positive correlations were detected between the internal load subjective measures and the external intensity-based load measures accelerations (PRSS: r = −0.461; RPE: r = 0.556), decelerations (PRSS: r = −0.665, p < .05; RPE: r = 0.630, p < .05), fast running (PRSS: r = −0.514; RPE: r = 0.615, p < .05), and metabolic power (PRSS: r = −0.477; RPE: r = 0.812, p < .01), again indicating that recovery decreased and exertion increased when the intensity-based parameters increased.

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