Trial reportJournal of athletic training2025
The Effects of Verbal Cues on Electromyographic Activity During a Quadriceps Setting Exercise.
Trial report in Journal of athletic training, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
contextA quadriceps setting exercise is commonly used following knee injury, but there is great variation in cues that clinicians provide to patients when performing the exercise.
objectivesTo determine if internal, external, or visual cues result in the greatest quadriceps electromyographical (EMG) activity during a quadriceps setting exercise in healthy individuals.
designDescriptive laboratory study.
settingUniversity research laboratory. PATIENTS OR OTHER
participantsThirty healthy individuals volunteered for this study. Participants were given 1 of 5 cues in a randomized order: internal cue "tighten your thigh muscles," internal cue "push your knee down," external cue "push into the bolster," external cue "push into the strap," or visual biofeedback using the cue "raise the value on the screen as high as you can." MAIN OUTCOME MEASURE(S): Normalized vastus lateralis electromyographical activity.
resultsBoth visual biofeedback (83.2% ± 24.9%) and the press into the strap condition (76.8% ± 24.4%) produced significantly greater (P < .001) electromyographical activity than the push knee down (53.2% ± 27.0%), tighten thigh (52.7% ± 27.3%), or push into the bolster (50.8% ± 26.3%) conditions. There was no significant difference (P = .10) between the visual biofeedback and press into the strap conditions as well as no significant difference (P > .38) between the push knee down, tighten thigh, or push into the bolster conditions.
conclusionIf the clinical aim during a quadriceps setting exercise is to obtain the greatest volitional muscle recruitment, the use of visual biofeedback or pressing into a strap is recommended.
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