Immediate effects and short-term retention of multi-modal instruction compared to written only on muscle activity during the prone horizontal abduction exercise in individuals with shoulder pain

Seitz, Amee L.; Kocher, Jordan; Uhl, Timothy L.

doi:10.1016/j.jelekin.2014.05.006

Cited by 7 publications

(12 citation statements)

References 48 publications

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“…The increase of muscle thickness supports the use of verbal instructions to improve muscle performance, which is consistent with previous verbal instruction studies. 5,[10][11][12][13] The increase of muscle thickness changes during isometric muscle contraction is consistent with the findings in previous studies; however, the amount of the increase varies among the studies. study on thickness change of the lumbar multifidus muscle, our asymptomatic group had a smaller increase during lumbar multifidus contraction than that found in Kiesel et al's, 21 in which percent increases of 13% on average were reported at L4-5.…”

Section: 28supporting

confidence: 90%

“…Appropriate instructions could change muscle activity and improve the accuracy of exercise performance. [10][11][12] One electromyographic (EMG) study…”

Section: Introductionmentioning

confidence: 99%

“…15,16 Conversely, verbal instructions used in focussing on non-target muscle activation did not consistently decrease muscle activity of the target muscle, such as the triceps brachii, pectoralis and upper trapezius. 12,15 The verbal instruction used by Hides et al 3 to activate lumbar multifidi was described as: 'Gently swell out your muscle under my finger without moving your spine or pelvis. Hold the contraction while breathing normally'.…”

Section: Introductionmentioning

confidence: 99%

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Effects of different verbal instructions on change of lumbar multifidus muscle thickness in asymptomatic adults and in patients with low back pain

Wang-Price

Zafereo

Brizzolara

et al. 2016

Journal of Manual & Manipulative Therapy

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Spinal stabilisation exercise has been shown to be effective in the rehabilitation of low back pain (LBP). Due to the isometric nature of spinal stabilisation exercise, manual therapists use various verbal instructions to elicit lumbar multifidus muscle contraction.The purpose of this study was to assess whether or not three verbal instructions would alter muscle thickness of the lumbar multifidus muscle differently in asymptomatic individuals and patients with LBP.Three verbal instructions were selected for this study: (1) swell the muscle underneath the transducer, (2) draw your belly button in towards your spinal column and (3) think about tilting your pelvis but without really doing it. Lumbar multifidus muscle thickness was determined using parasagittal ultrasound (US) imaging. Measurements of muscle thickness were collected at rest and during verbal instructions from 21 asymptomatic adults and 21 patients with LBP. Percent changes of muscle thickness during contraction and at rest were compared between groups and across verbal instructions.ANOVA results showed no significant interaction for both L4-5 and L5-S1, but a significant main effect of verbal instruction (P 5 0.049) at L4-5.Post hoc analysis showed a greater increase with verbal instruction #3 than verbal instruction #2 (P 5 0.009). There was no significant main effect of group at either segment.The results of the study suggest that both groups responded similarly to the three verbal instructions. Verbal instructions may increase lumbar multifidus muscle thickness by different amounts at L4-5, but by the same amount at L5-S1.

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Section: 28supporting

confidence: 90%

“…Appropriate instructions could change muscle activity and improve the accuracy of exercise performance. [10][11][12] One electromyographic (EMG) study…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of different verbal instructions on change of lumbar multifidus muscle thickness in asymptomatic adults and in patients with low back pain

Wang-Price

Zafereo

Brizzolara

et al. 2016

Journal of Manual & Manipulative Therapy

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“…Audio feedback has been shown to improve accuracy of PWP performance (Hershko, Tauber & Carmeli, 2008). Further improvements may be possible with multimodal feedback, which has been shown to be more effective than single mode feedback in rehabilitation (Seitz, Kocher & Uhl, 2014), and in motor learning generally (Sigrist et al, 2013). Finally, it should however be noted that there is a dearth of robust clinical evidence in support of improved outcomes following PWBPs (Hustedt et al, 2012), and some studies have even shown that successful outcomes are possible with patient-limited weight-bearing (Koval et al, 1998).…”

Section: Discussionmentioning

confidence: 99%

Are current methods of partial weight-bearing instruction accurately translating to crutch-assisted gait?

Graham

Stephens

Dietz

et al. 2016

International Journal of Therapy and Rehabilitation

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Study Design: Repeated measures, Williams crossover design. Objectives:The aim of this study was to determine the accuracy with which weight-bearing protocols (20%, 50% or 80% of body weight (BW)) could be reproduced shortly after being taught.Background: Partial weight bearing protocols (PWBPs) are commonly incorporated into hospital, clinical and field based rehabilitation (Hershko, Tauber & Carmeli, 2008), to enhance recovery, particularly in patients following cartilage surgeries. Overloading can affect healing time and the stability or integrity of the healing structure (Pauser et al., 2012), however underloading can also be detrimental as adequate weight bearing encourages the healing process, for example osteoblastic stimulation (Meadows, Bronk, Chao & Kelly, 1990). Therefore accurate reproducibility of these protocols could be considered essential to the rehabilitation process.Methods: 30 participants were taught three partial weight bearing protocols (20%, 50% and 80% BW), using bathroom scales. Participants ability to reproduce their target load for each protocol was assessed statically using bathroom scales and dynamically with a force plate using a 3point elbow crutch assisted gait. Participants were assessed 10 minutes after being taught. Errors between actual and target load during these trials was calculated. Results:Accuracy assessed with scales was comparatively good for all target loads, however dynamic trials using the force plate showed an inverse relationship between all error measures and target loads (i.e. 20% > 50% > 80% BW; all p<0.01). The peak error was double the intended load at 20%BW (95% CI: 11.9%BW, 24.1%BW). At 80%BW the peak error was not significantly different from zero. Conclusion:The static method of instruction of PWBPs, using bathroom scales, does not seem to translate accurately to dynamic motion, and therefore affects adherence to medical instruction.Practitioners should be aware of the potential errors in reproducing these loads and the potential effect on rehabilitation. These results would suggest that practitioners should be cautious when using bathroom scales to teach PWBPs and not rely on them to assess reproduction accuracy during gait. Level of evidence:Controlled laboratory study, randomized cross-over design.

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“…First, no participants received feedback for SA muscle activation during the exercises. A recent EMG study has demonstrated that muscle recruitment is more consistent when multimodal instruction and feedback is given [34]. Second, because multiple scapula humeral muscles are activated during the four selected exercises [35], it is possible that some participants were able to perform the exercises by engaging other scapula humeral muscles while minimally contracting the SA.…”

confidence: 99%

Effect of Exercise Position on Percent Changes in Serratus Anterior Muscle Thickness

Day¹

2017

JESO

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Open Access Research Articleassessment tools have limitations. Techniques used to manual muscle test the SA are easy to perform but do not appear to isolate the SA [5]. ElectroMyographic Activity (EMG) and motion analysis provide researchers with isolated and detailed information but interpretation is difficult [7,8]. Unlike other assessment tools, Ultrasound Imaging (UI) provides isolated real time visualization of muscle contraction, thus allowing researchers and clinicians quick interpretation of the contraction of a specific muscle [9,10]. UI has been shown to be a valid and reliable assessment tool for measuring thickness and cross sectional areas of the transversus abdominus, obliques [11] A few studies have investigated muscle thickness measures of the SA in both healthy [16][17][18] and pathological populations [19]. In general, between and within day intra-rater reliability measuring SA thickness has been shown to be good to excellent in health individuals positioned in glenohumeral scaption [16,17]. Only one study has investigated inter rater reliability of SA thickness and the results were modest to poor [17].Other studies have investigated the ability to detect changes in SA thickness using UI. Two studies found no differences in healthy individuals when adding various loads to the UE in scaption at both 90 degrees [16], and 120 degrees of elevation [18]. However, increasing loads during upper extremity elevation does not appears to effect EMG activity of the serratus anterior [20] and therefore, may explain why no changes in the SA thickness were observed between loads using diagnostic ultrasound imaging. One other study has investigated SA muscle thickness in patients with LE compared to controls. Preliminarily and with a small sample size, it appears that UI was able to detect significant differences in the change of muscle thickness from rest to contraction when comparing patients to controls but the mean differences were not beyond minimal detectable change values [16]. Another manuscript by Seitz et al, reported no significant differences in SA muscle thickness in health individuals with and without observable scapular dyskinesia [21].With the available evidence in UI assessment of the SA, it AbstractObjective: A reliable method for measuring SA thickness with ultrasound imaging has been reported, yet the ability to detect differences in levels of contractility has yet to be established. The purpose of this study was to determine if there are differences in the percent change in thickness of the SA during four different exercise positions performed by healthy individuals. Design: Observational study Setting: LaboratoryParticipants: Twenty-eight healthy participants, mean age 26 (SD 4, 57% female, 100% right handed) Methods: Volunteers were positioned in a standardized sitting posture and anatomical landmarks were marked for ultrasound probe positioning. Two resting and two contractile ultrasound images were taken for each exercise position and the average thickness between trials was used in th...

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Immediate effects and short-term retention of multi-modal instruction compared to written only on muscle activity during the prone horizontal abduction exercise in individuals with shoulder pain

Cited by 7 publications

References 48 publications

Effects of different verbal instructions on change of lumbar multifidus muscle thickness in asymptomatic adults and in patients with low back pain

Effects of different verbal instructions on change of lumbar multifidus muscle thickness in asymptomatic adults and in patients with low back pain

Are current methods of partial weight-bearing instruction accurately translating to crutch-assisted gait?

Effect of Exercise Position on Percent Changes in Serratus Anterior Muscle Thickness

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