swing phase


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swing phase

non-weight-bearing phase of gait, i.e. when foot swings forward between one episode of ground contact and the next (see stance) Table 1 and Table 2
Table 1: The gait (walking) cycle
Phase of the cyclePeriodComment
Stance phase (60%)ContactFrom heel strike to foot flat
Foot unlocks to act as a shock absorber and adapt to irregularities in the ground surface
MidstanceFrom foot flat to heel lift
The total weight-bearing surface of the foot is in contact with the walking surface
PropulsionFrom heel lift to toe off
Foot is a rigid and stable lever
Swing phase (40%)From toe off limb 1 to heel strike (limb 1)
Body mass transfers from limb 1 to limb 2
Table 2: Comparison of gait during walking and running
WalkingSlow runningFast running
Contact phase (60%)
  • Heel contact

  • Midstance (flat foot)

  • Propulsion (toe off)

Shorter contact phase (50%)Short contact phase (40%)
5 cm base of gait (intermalleolar distance)>5 cm base of gait
Short swing phase (40%)Longer swing phase (70%)Long swing phase (80%)
Short period of double support (10%)40% of cycle without support (= airborne phase)60% of cycle without support (= airborne phase)
References in periodicals archive ?
37seconds]) of heel ball walks was longer than the swing phase (0.
The last third of the swing phase is the period of gait cycle when the foot passes closest to the ground.
The support phase of every leg costs three quarters of the cycle time, and swing phase costs a quarter of the cycle time.
The straight line shown in the graph is the signal of the heel sensor, making it possible to determine the stance phase and swing phase.
This work sought to define the sequence of joint movements that allow a biped robot to make the swing phase of the right leg similar to that of humans by using motion capture data, the proposed control law will be validated in a planar biped robot with feet and actuated ankles.
During the obstacle steps, there was no difference in the swing phase duration between PD and healthy subjects (mean swing phase duration: PD subjects: 0.
The ankle shows a plantar flexion moment until mid-stance, which is decreased thereafter and consistently maintained during the swing phase (Gaudreault et al.
Briefly, the mechanical state of the stance limb predictably influences simultaneous swing phase hip abductor activity in the contralateral limb; swing phase activity is higher when the center of mass (CoM) is displaced farther mediolaterally from the stance foot.
In their paper, they describe two different impedance-based controllers to achieve locally passive control both during ground interaction and during the swing phase of a walking gait.