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Table 3 Frequency and distribution of mechanical comments for open ended questions

From: The perceptions of professional soccer players on the risk of injury from competition and training on natural grass and 3rd generation artificial turf

Nature of player comments

On which surface does it take you more time to recover after a game?

Overall on which surface do you feel the risk of sustaining and injury is higher?

Mechanical comments

47(57%)

43(59%)

Other

35(43%)

30(41%)

Total

82(100%)

73(100%)

Mechanical comments

  

1. Stiffness

35(75%)

22(51%)

2. Friction

3(6%)

12(28%)

3. Metabolic cost

7(15%)

0(0%)

4. Stiffness and friction

2(4%)

9(21%)

Total

47(100%)

43(100%)