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Table 1 Tests of muscle function

From: Hop tests and psychological PROs provide a demanding and clinician-friendly RTS assessment of patients after ACL reconstruction, a registry study

Ā 

Degrees of movement

Practice trials n (% of 1RM)

Test trials (n)

Rest between test trials (seconds)

Units

Knee extension

90Ā°-0Ā°

10 (50%);

3ā€“4

40

Newton meters

10 (75%);

1ā€“2 (90%)

Knee flexion

0Ā°-90Ā°

10 (50%);

3ā€“4

40

Newton meters

10 (75%);

1ā€“2 (90%)

Vertical hop

ā€“

2

3

20

Centimeters

Hop for distance

ā€“

2

3ā€“5

20

Centimeters

Side hop

ā€“

ā€“

30ā€‰s

180

Number of hops

  1. nā€‰=ā€‰number; 1RMā€‰=ā€‰one repetition maximum