Predicting the Biomechanics of Walking - Human Motion Simulation: Predictive Dynamics - page 178

Vertical GRF

2

HS FF HO TO HS

1.8

1.6

1.4

1.2

1

20-lb
40-lb
80-lb

0.8

0.6

0.4

0.2

0

0 0 0 0 0 0 0 0 0 0 0

-0.2

stance swing

-0.4

% Gait Cycle

Fore-aft GRF

HS FF HO TO HS

0.3

0.2

fore

0.1

20-lb
40-lb
80-lb

0

0 0 0 0 0 0 0 0 0 0 0

-0.1

aft

-0.2

stance swing

-0.3

% Gait Cycle

Lateral GRF

HS FF HO TO HS

0.04

lateral

0.02

0

0 0 0 0 0 0 0 0 0 0 0

-0.02

20-lb
40-lb
80-lb

medial

-0.04

-0.06

-0.08

-0.1

stance swing

-0.12

% Gait Cycle

FIGURE 7.23
Ground reaction forces with backpack.