The gait cycle begins with the hip of the amputated limb (figure 7), with a value close to the maximum extension and the knee at 12[degrees] of flexion; the curve decreases slowly until reaching the point of mid-stance
, where the knee reaches 8[degrees] of flexion while the hip is at approximately 5[degrees] of extension.
From this instant until the mid-stance
phase, the hip extensors performed positive work, and muscle power was maintained at a greater level with peak power as high as 2658 [+ or -] 937 W during the mid-stance
Except for 180 Hz, the flexions of the hip joints at 15~65% (from mid-stance
phase to terminal stance phase) at 190 Hz and 200 Hz both decreased.
To quantify the dance influence on the lower limbs the following parameters were calculated: right and left legs stride, stance and swing time's, knee maximum extension around heel strike, knee angle at double knee action, knee maximum flexion around mid-stance
, knee maximum flexion at swing phase, hip joint maximum flexion and extension.
Based on this method the stance phase is divided into the following four stages: loading response, mid-stance
, terminal stance and pre-swing.
THUMS pedestrian model was modified to consider both standing and mid-stance
(4) The TPT procedure aims to correct the resting position of the foot, restore active dorsiflexion at the ankle and to restore normal gait pattern (heel strike, mid-stance
and then propulsion) and thus it reduces the risk of further injury to, and deformity of the forefoot.
(2009) reported that a decrease in knee range can be observed from initial contact to mid-stance
phases and that electromyography (EMG) activation is decreased in the rectus femoris and gastrocnemius muscles.
(MS) was identified as the entire duration that the foot was in full contact with the floor.
With regard to CRP, our findings showed that the healthy group had in-phase coordination pattern at heel contact, and mid-phase coordination pattern at mid-stance
(xiv) in the hip joint two peaks were considered in the frontal plane: the first peak occurs in the mid-stance
phase and represents the maximum value of hip adduction; the second peak occurs after toe off event and represents the maximum value of hip abduction;
If only the similar gait deviations between CPIFA and NIFA groups were considered and if the differences with TD group were not considered, the conditioned parameters would be: the decrease in ROM of the knee, hip and ankle, peak plantar flexion, peak plantar flexion moment in early stance, peak knee extension moment in mid-stance
, hip flexor moment in late stance and the increase in dorsiflexion angle at the ankle, knee extension moment in late stance, knee power absorption during stance, cadence and stance time.