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Table 2.

Mean values of the percentages of rectified integrated area during different phases of the stride cycle and F-values for the main effect of incline from two-way ANOVAs performed separately on each variable

Percent of activity per stride at each incline
F-value
Variablea−45°45°Incline (d.f. 2,6)
CF stance 67 93 86 7.5* 
CF stance flex 15 50 51 27.0** 
CF swing flex 25 11.4* 
CF retraction 72 93 84 6.5* 
CF post rotation 76 95 87 5.1 
IF stance 51 38 57 3.7 
IF stance flex 32 20 24 2.6 
IF swing flex 28 39 18 2.4 
IF retraction 51 39 55 2.2 
IF elevation 38 53 32 2.5 
IT stance 43 49 65 6.9* 
IT stance ext 20 40 52 18.9** 
IT swing 39 37 29 1.8 
IT retraction 44 50 63 5.6* 
IT elevation 42 43 29 4.2 
FTE stance 79 90 95 2.1 
FTE stance flex 33 68 80 11.7* 
FTE swing flex 10 1.7 
FTE retraction 82 90 94 1.6 
PIT stance 72 73 82 1.5 
PIT stance flex 37 62 71 5.3* 
PIT swing flex 20 23 14 1.7 
G stance 59 69 61 0.7 
TA stance 48 54 49 0.2 
EDL stance 75 83 88 0.6 
P stance 70 84 84 3.5 
Percent of activity per stride at each incline
F-value
Variablea−45°45°Incline (d.f. 2,6)
CF stance 67 93 86 7.5* 
CF stance flex 15 50 51 27.0** 
CF swing flex 25 11.4* 
CF retraction 72 93 84 6.5* 
CF post rotation 76 95 87 5.1 
IF stance 51 38 57 3.7 
IF stance flex 32 20 24 2.6 
IF swing flex 28 39 18 2.4 
IF retraction 51 39 55 2.2 
IF elevation 38 53 32 2.5 
IT stance 43 49 65 6.9* 
IT stance ext 20 40 52 18.9** 
IT swing 39 37 29 1.8 
IT retraction 44 50 63 5.6* 
IT elevation 42 43 29 4.2 
FTE stance 79 90 95 2.1 
FTE stance flex 33 68 80 11.7* 
FTE swing flex 10 1.7 
FTE retraction 82 90 94 1.6 
PIT stance 72 73 82 1.5 
PIT stance flex 37 62 71 5.3* 
PIT swing flex 20 23 14 1.7 
G stance 59 69 61 0.7 
TA stance 48 54 49 0.2 
EDL stance 75 83 88 0.6 
P stance 70 84 84 3.5 

*P<0.05, **P<0.01.

Muscle abbreviations are listed in Table 1.

Flex, flexion of the knee; ext, extension; retraction, femur retraction;post rotation, clockwise long-axis femur rotation as seen in right lateral view; elevation, femur elevation.

a

Each variable is a combination of a muscle and a phase of the stride. The description following the muscle abbreviation (e.g. stance flex) indicates the percentage of the total rectified integrated area of those muscles during those kinematic events.

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