Browsing Kinesiology and Health Sciences by Author "Acker, Stacey M."
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Comparing functional dynamic normalization methods to maximal voluntary isometric contractions for lower limb EMG from walking, cycling and running
Chuang, Tyler; Acker, Stacey M. (Elsevier, 2019-02)There is no consensus on the most appropriate method for normalizing an individual’s electromyography (EMG) signals from walking, cycling and running in the same data collection. The aim of this study was to compare how ... -
The effects of a simulated occupational kneeling exposure on squat mechanics and knee joint load during gait
Tennant, Liana M.; Chong, Helen C.; Acker, Stacey M. (Taylor and Francis, 2017-12-01)Occupational kneeling is associated with an increased risk for tibiofemoral knee osteoarthritis. Forces on the knee in the kneeling posture, as well as the greater incidence of meniscus tears among workers, likely contribute ... -
Knee power is an important parameter in understanding medial knee joint load in knee osteoarthritis.
Calder, Kristina M.; Acker, Stacey M.; Arora, Neha; Beattie, Karen A.; Callaghan, Jack P.; Adachi, Jonathan D.; Maly, Monica R. (Wiley, 2014-05-01)Objective To determine the extent to which knee extensor strength and power explain variance in knee adduction moment (KAM) peak and impulse in clinical knee osteoarthritis (OA). Methods Fifty-three adults (mean ± SD age ... -
Representing fine-wire EMG with surface EMG in three thigh muscles during high knee flexion movements
Kingston, David C.; Acker, Stacey M. (Elsevier, 2018-12-01)Activation waveforms of vastus intermedius, adductor magnus, and semimembranosus have not been reported for high knee flexion activities such as kneeling or squatting, likely due to the invasive procedures required for ... -
Thigh-calf contact parameters for six high knee flexion postures: Onset, maximum angle, total force, contact area, and center of force.
Kingston, David C.; Acker, Stacey M. (Elsevier, 2018-01-23)In high knee flexion, contact between the posterior thigh and calf is expected to decrease forces on tibiofemoral contact surfaces, therefore, thigh-calf contact needs to be thoroughly characterized to model its effect. ...