Table 6

 Correlation of specific training factors with hamstring strain rate in professional football clubs

Factorr/ρ Valuep ValueN
N, Number of responses; SSP, standard stretching protocol; HSF, hamstring stretching frequency; STE, stretching technique employed; SHT, stretching holding time; SRT, strength/resistance training.
Use of SSPρ = −0.530.0123
HSFr = −0.130.5722
STEρ = −0.150.5123
SHTr = 0.020.9423
SRT (min/week)r = 0.340.1822
Flexibility training (min/week)r = 0.060.8421
Endurance training (min/week)r = −0.310.2222
Use of warm down after trainingρ = −0.210.3523
Use of warm down after matchesρ = −0.030.8823