The purpose of this study was to quantify the amount anterior tibial displacement occurring in cru ciate ligament-deficient knees during two types re habilitation exercises: 1) resisted knee extension, an open kinetic chain exercise; and 2) parallel squat, a closed exercise. An electrogoniometer system applied cruciate ligament- deficient 11 volunteers uninvolved normal 9 these volunteers. Anterior flexion angle were meas ured each exercise using matched quadriceps loads Lachman test. had...

Comparison of vertical ground reaction forces during overground and treadmill walking. Med. Sci. Sports Exerc., Vol. 30, No. 10, pp. 1537-1542, 1998. Treadmills offer many advantages in training gait analysis. Treadmill locomotion equivalency has, however, been the subject much debate. Purpose: The purpose this study was to compare walking with foot-belt for gait. Methods: Twenty-four subjects walked on a at three speeds (slow, normal, fast), comparable cadences stride length each speeds....

The purpose of this research was to assess the ability trunk acceleration measures discriminate between walking patterns elderly individuals with and without stability problems. Twenty volunteers, aged 65 over, 19 younger all whom were free abnormalities or problems that could affect their gait, recruited for study. A triaxial accelerometry system mounted directly over spine upper trunk. Forty seconds data collected. Using a heel contact switch define beginning gait cycle, harmonic analyses...

Women are disproportionately affected by musculoskeletal disorders. Parous women seem to be at a particularly elevated risk for structural and functional changes in the lower limbs. The combination of increased weight on joints with potentially greater laxity during pregnancy could lead permanent feet. Although arches may become lax pregnancy, it is unknown whether persist. objective this study was determine arch height loss persists postpartum.Forty-nine completed longitudinal study. Static...

Patients with knee osteoarthritis (OA) have reduced functional capacity and muscle function that improves significantly after quantitative progressive exercise rehabilitation (QPER). The effects of these changes on the biomechanics walking not been quantified. Our goal was to quantify OA gait before QPER. Bilateral kinematic kinetic analyses were performed using a standard link-segment analysis seven women (60.9 +/- 9.4 years) OA. All capacity, variables initially compared age-matched...

To determine whether a lower-body obesity pattern increases estimated forces on the medial compartment of knee joint.Cross-sectional clinical biomechanical study.Nineteen normal weight (body mass index, 22.8 +/- 1.8 kg/m2), 20 centrally obese 35.0 4.0 kg/m2 and waist-hip ratio >or=0.85 for women; >or=0.95 men), 36.4 5.4 kg/m2) adults aged 37-55 yrs without pain were recruited. There no intergroup differences age. Weight did not differ between groups, but thigh girth differed groups (P <...

Study Design Clinical measurement. Objective To determine the validity and reli- ability of measures obtained using a custom-made device for assessing ankle dorsiflexion motion stiffness. Background Limited has been implicated in evolution foot pain number clinical populations. Assessment range (ROM) is, therefore, commonly performed as part examination. Conventional goniometric assessment methods have demonstrated limited intertester reliability, while alternative measurements are generally...

Background: Relapse of idiopathic clubfoot deformity after treatment can be effectively managed with repeat casting and tibialis anterior tendon transfer during early childhood. We evaluated the long-term effects on adult foot function for relapsed Methods: Thirty-five patients (sixty clubfeet) in whom was treated Ponseti method from 1950 to 1967 were followed. At an average age forty-seven years (range, thirty-seven fifty-five years), underwent a detailed musculoskeletal examination,...

Anatomy and Biomechanics of the First Ray The medial longitudinal arch serves as chief load-bearing structure in foot [1][2][3] is dependent on kinematics first ray for optimal support during gait. 4The a single segment consisting metatarsal cuneiform bones. 5Pronation subtalar joint lowers to ground early stance 5 dissipates shock heel impact. 3As body weight moves forward, mechanics supination stabilize arch, preparing propulsive phase gait.The dichotomous actions acceptance weight-bearing...

To test the hypothesis that muscle sound amplitudes would remain constant during sustained submaximal isometric contractions, we recorded acoustic myograms from abductor digiti minimi in 12 subjects at 15, 25, 50, and 75% of a maximum voluntary contraction (MVC). Muscle sounds were detected with an omni-directional electret microphone encased closed-cell foam attached to skin over muscle. Acoustic middle end contractions compared beginning determine whether varied magnitude as force remained...

The objective of this study was to determine whether individualized gait training is more effective than usual care for reducing mobility disability and pain in individuals with symptomatic knee osteoarthritis.Adults aged 60 yrs or older osteoarthritis limitations were randomized physical therapist-directed on an instrumented treadmill, biofeedback optimize movements, biweekly 3 mos (control). Mobility defined using Late Life Function Disability Index Basic Lower Limb score (primary);...

The relationship between a static measure of dorsal first ray mobility and dynamic motion the ray, midfoot, hindfoot during stance phase walking was investigated in healthy, asymptomatic subjects who represented spectrum flexibility. Static 15 measured by load cell device ranged from stiff (3.1 mm) to lax (8.0 mm). Using three-dimensional analysis, mean dorsiflexion/eversion mid-/hindfoot eversion peak motion, time-to-peak, excursion were evaluated. Subjects with greater demonstrated...

Single cohort study.To investigate the efficacy of real-time biofeedback provided during treadmill gait training to correct knee hyperextension in asymptomatic females while walking.Knee is associated with increased stress posterior capsule joint, anterior cruciate ligament, and compartment tibiofemoral joint. Previous methods aimed at correcting have shown limited success.Ten women, ages 18 39 years, ambulation, were 6 sessions feedback kinematic data (Visual 3D) training. Gait evaluations...