The influence of orthotic devices and vastus medialis strength and timing on patellofemoral loads during running

Neptune, Richard R.; Wright, Ian C.; Bogert, Antonie J. van den

doi:10.1016/s0268-0033(00)00028-0

Cited by 125 publications

(84 citation statements)

References 35 publications

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“…This kind of anticipatory activation of the VMO offers a mechanical advantage in the maintenance of mediolateral balance in accordance with the sequence of anticipatory activation. Furthermore, the VMO increases PFJ lateral pressure, with a short delay of 5 ms 19) . Statistically, the timing difference between the two muscles is significant, but since it is only 5 ms, it is difficult to attribute clinical meaning to the results.…”

Section: Discussionmentioning

confidence: 96%

Comparison of the VMO/VL EMG Ratio and Onset Timing of VMO Relative to VL in Subjects with and without Patellofemoral Pain Syndrome

Kim

Song

2012

J Phys Ther Sci

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Abstract.[Purpose] The purpose of our study was to measure the onset timing of the vastusmedialis oblique (VMO) relative to the vastuslateralis (VL) and the VMO/VL electromyographic (EMG) ratio in subjects with and without patellofemoral pain syndrome (PFPS) while they completed a functional task (stair stepping).[Subjects] Ten patients with PFPS and ten subjects without PFPS were included in this study.[Methods] The subjects performed stair stepping while surface electrodes were used to record the EMG signal amplitude of the VMO and VL.[Results] During stair ascent and descent, significant differences in VMO/VL EMG ratios were observed between participants with and without PFPS. Significant differences were also observed for the VMO-VL timing among participants with and without PFPS while ascending and descending the stairs.[Conclusion] Our findings indicate that PFPS patients have a VMO/VL imbalance and delayed onset of VMO relative to VL.

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Section: Discussionmentioning

confidence: 96%

Comparison of the VMO/VL EMG Ratio and Onset Timing of VMO Relative to VL in Subjects with and without Patellofemoral Pain Syndrome

Kim

Song

2012

J Phys Ther Sci

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“…Application of these techniques to actively controlled dynamic movements has recently been demonstrated in relation to overuse injuries during running activities [24,25] and ankle sprains [26]. With proper validation, models such as this offer the potential to predict the effect of neuromuscular control on knee joint loading during potentially hazardous movements such as sidestep cutting.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of a 3-D Model to Predict Knee Joint Loading During Dynamic Movement

McLean

Bogert

2003

Journal of Biomechanical Engineering

213

180

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“…Femoral internal rotation and hip adduction both contribute to increased valgus alignment at the knee. 12,27 It has been suggested that excessive knee valgus alignment may be a contributing factor in the development of PFPS, 12,31,43 as it increases lateral patellofemoral contact loads. 27 Additionally, it has been shown that foot pronation or rearfoot eversion can also lead to increased valgus alignment at the knee.…”

mentioning

confidence: 99%

Augmented Low Dye Taping Changes Muscle Activation Patterns and Plantar Pressure During Treadmill Running

Kelly

Racinais²,

Tanner³

et al. 2010

J Orthop Sports Phys Ther

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overuse injuries remains unclear, 25 research evidence suggests that antipronation intervention techniques are effective at reducing pain and improving function in individuals with lower limb overuse injuries. 6,32 Antipronation taping methods are used clinically as part of treatment for numerous lower limb conditions. 13 Augmented low Dye (ALD) taping has been shown to reduce foot pronation by increasing arch height before and after exercise 40 and by Methods to reduce foot pronation are used commonly in a clinical setting as part of the management for lower limb musculoskeletal overuse injuries. 6,13,32 It has been shown that excess pronation alters joint kinetics, which affects joint loading and muscle activation. 24,29 While the exact role of foot pronation in the development of t StuDY DeSign: Randomized, crossover study.t ObJectiVe: To examine changes in muscle activity and plantar pressure during running with the application of augmented low Dye (ALD) taping.t backgROunD: ALD taping is used clinically as part of management for lower limb injury. As of yet, no studies have examined the effect of this taping method on muscle activity and plantar pressure during running, simultaneously.t MethODS: Thirteen healthy recreational runners (mean  SD age, 31.7  4.9 years; height, 181.7  4.6 cm; body mass, 81.6  5.9 kg) completed a 6-minute run on a treadmill at a speed of 10 km·h -1 , with 3 different taping conditions (ALD, control tape, no tape), applied in randomized order. Peak and average EMG signal amplitude, onset time, and burst duration were calculated for the vastus medialis, vastus lateralis, and the gluteus medius. In-shoe plantar pressures were also recorded. All data were calculated based on an average of 20 steps collected after 5 minutes of treadmill running.t ReSultS: ALD taping significantly altered muscle activity and plantar pressure during treadmill running by (1) delaying the onset of the EMG signal of the gluteus medius, vastus medialis, and vastus lateralis, and (2) increasing lateral midfoot plantar pressure.t cOncluSiOn: ALD taping significantly alters plantar pressure and muscle activation patterns during treadmill running. These findings give insight into the neuromuscular effect of a taping procedure that is used commonly in a clinical setting.

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The influence of orthotic devices and vastus medialis strength and timing on patellofemoral loads during running

Cited by 125 publications

References 35 publications

Comparison of the VMO/VL EMG Ratio and Onset Timing of VMO Relative to VL in Subjects with and without Patellofemoral Pain Syndrome

Comparison of the VMO/VL EMG Ratio and Onset Timing of VMO Relative to VL in Subjects with and without Patellofemoral Pain Syndrome

Development and Validation of a 3-D Model to Predict Knee Joint Loading During Dynamic Movement

Augmented Low Dye Taping Changes Muscle Activation Patterns and Plantar Pressure During Treadmill Running

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