Table 4 Five structured microscale indicators.

From: Physical function evaluation in volleyball training based on intelligent GRNN

Indicator name

Full name

Meaning

PRDB

Peak Response Deviation Bias

Maximum deviation ratio of model to physiological peak prediction

LPDB

Local Prediction Deviation Bias

Maximum prediction error difference in continuous time window

TIR

Trend Inversion Rate

The ratio of the measured trend to the predicted trend in the disturbed section.

LVS

Local Variability Sensitivity

Relative reconstruction ability of local fluctuation amplitude

ADF

Adaptive Drift Following

The delay rate of the model to the slow drift of the index measures the lag of the response.