Prone position.

<p>Increases in peak force for two exercises. Data from 3 patients (WP1, WP2, and WP4). See also <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102005#pone-0102005-g001" target="_blank">Figure 1</a>.</p

All-fours position.

<p>Increases in peak force for three exercises. Data from 4 patients (WP1, WP2, WP4, and WP5). See also <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102005#pone-0102005-g001" target="_blank">Figure 1</a>.</p

Supine position.

<p>Increases in peak force for three exercises. Data from 5 patients (WP1–WP5). The median values and ranges of the single patients and their averages are shown. n = number of evaluated trials. The force increase relates to the relaxed resting position.</p

Changing spinal shape.

<p>Increases in peak force for arching and hollowing the back in the all-fours position. Data from 4 patients (WP1, WP2, WP4, and WP5). See also <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102005#pone-0102005-g001" target="_blank">Figure 1</a>.</p

Lateral position.

<p>Increases in peak force for abduction of a straight leg. Data from 5 patients (WP1–WP5). See also <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102005#pone-0102005-g001" target="_blank">Figure 1</a>.</p

Peak resultant force versus power.

<p>The influence of the power level on the peak resultant force on the implant during cycling. The medians and ranges are shown for various power levels for the four patients (WP1, WP2, WP4 and WP5).</p

Comparison of the average peak force values (in N) for cycling at a power of 85 W, level walking [8] and relaxed standing [9] measured on the same day and for lifting of a 10 kg weight from the ground.

<p>The values in parenthesis represent the ranges.</p

Force range versus power.

<p>The influence of the power level during cycling on the force ranges during a pedal revolution. The medians and ranges are shown for various power levels for the four patients (WP1, WP2, WP4 and WP5). The calculated average pedal force is represented by the dashed line.</p

Data on the patients and surgical procedures.

<p>Data on the patients and surgical procedures.</p

External equipment.

<p>The power coil with GMR sensor are fixed near the patient’s hip and connected to the external device TELETEMP.</p