midstance

midstance

[mid′stanz]
Etymology: AS, midd + L, stare, to stand
one of the five stages in the stance phase of walking, or gait, directly associated with the period of single-leg support of body weight or the period during which the body advances over the stationary foot. During midstance the tibialis posterior and the flexor hallucis longus display their greatest activity. The midstance phase is considered in the diagnosis of many abnormal orthopedic conditions and in the analysis of the associated weaknesses of certain muscles and muscle groups. Compare initial contact stance stage, loading response stance stage, preswing stance stage, terminal stance. See also swing phase of gait.
References in periodicals archive ?
The point of midstance (MS) was inferred from the point where the opposite ankle crossed the leg of which the foot is in contact with the floor on the sagittal plane (Mahmoudian et al.
While the piriformis has been proven to protect the femoral neck, the iliotibial band has recently been shown to create a stabilizing force along the entire thigh that lessens bending of the femur during the midstance period of the gait cycle.
Internationally-recognised basics of normal human gait, which include the ability of the Claimant to heel-strike, midstance, and toe-off with either foot can be eyeballed' within a simple clinic setting, and used as a reference-point to describe an abnormal gait pattern, if indeed an abnormal gait pattern is present.
In nondisabled subjects, sEMG has been used to show that several core muscles are active throughout the gait cycle and that several, including the rectus abdominis (RA), external oblique (EO), and internal oblique (IO), can have increased activation during specific phases, such as midstance or foot-strike [14-15].
At midstance the barefoot condition displayed significantly less dorsiflexion compared to all shoe conditions.
The relationships between foot arch volumes and dynamic plantar pressure during midstance of walking in preschool children.
In particular, the upper body is too often ignored as runners focus on footstrike, midstance, stride length and toe-off.
9,31,51) While the initial passive impact peak ground reaction forces that occur at approximately 10% to 12% stance phase are greater for shod heel-toe runners, the midstance active propulsive vertical ground reaction forces may be greater for midfoot or forefoot strikers (Figure 2).
Pairs of spring were added to the orthosis to produce different levels of muscular activity in Q during the midstance, transition period and terminal swing phase of gait.
Midstance (%): defined as the first instant all the metatarsal heads made contact with the footscan[R] plate until the heel region lost contact with the footscan[R] plate.
As concerns kinematic parameters, significant changes were evidenced at all lower limb joints (ankle, knee and hip joints): they walked with ankle in a more normal biomechanical condition, especially at toe-off when it is able to reach values of plantarflexion close to normality, knee is characterised by a better flexion during swing phase and hip revealed an improved ability in extension during midstance.
At midstance, the optimal subtalar posture for the weight bearing foot is neutral (i.