Trunk muscle activation during movement with a new exercise device for lumbo‐pelvic reconditioning

Weber, Tobias; Debuse, Dorothée; Salomoni, Sauro Emerick; Cancino, Edith Lorena Elgueta; Martino, Enrico De; Caplan, Nick; Damann, Volker; Scott, Jonathan; Hodges, Paul W.

doi:10.14814/phy2.13188

Cited by 11 publications

(19 citation statements)

References 38 publications

(63 reference statements)

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“…Nine healthy male volunteers (mean(SD) age: 27 5 After baseline data collection participants were familiarized with FRED exercise for 10 minutes, during which they completed three different amplitude settings (data from these tasks are published elsewhere [3], beginning with the smallest amplitude [18]. The three different amplitude settings were 0.2 m (small) 0.36 m (middle) and 0.5 m (large).…”

Section: Participantsmentioning

confidence: 99%

“…Throughout the duration of FRED exercise, participants were asked to maintain cycle frequency at 0.42 cycles per second. After familiarization, participants completed a 30 min test battery of three FRED amplitude settings in random order [3] followed by a ten minute continuous sequence in the middle amplitude setting. Outcome measures (EMG at rest while standing and during rapid arm movements) were recorded immediately after completion (post) of the exercise and after a 10-minute wash-out during which they remained standing (10-min WO).…”

Section: Participantsmentioning

confidence: 99%

“…The device, called the Functional Re-adaptive Exercise Device (FRED, Figure 1), is similar in its kinematics to an elliptical trainer, but it offers little resistance to lower limb movement [3]. Using surface and intramuscular electromyography (EMG) as well as Bmode ultrasound imaging, previous studies revealed tonic activation of lumbo-pelvic muscles during FRED exercise as compared to walking [1][2][3]. As tonic activation of postural muscles is an aspect of function that is modified in LBP, this suggests a potential role for this device as a rehabilitation tool to reinforce this function.…”

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

“…Compared with walking, FRED exercise was associated with less activity of superficial trunk muscles (e.g. obliquus externus abdominis (OE)a muscle that is often found to have additional activation in LBP [4,5] whereas the mean activity of the Transversus Abdominis (TrA) and Multifidus (MF) muscles was similar between tasks [3].…”

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

“…It was therefore proposed that FRED exercise could be beneficial if integrated into rehabilitation interventions following long term micro-gravity exposure or LBP [6]. In particular, tonic activation of trunk muscles induced by FRED exercise [3] has been…”

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

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Functional behaviour of spinal muscles after training with an exercise device developed to recruit and train postural muscles

et al. 2018

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This study investigated the effects of a single exercise session using a device developed for postural muscle training on the function of postural muscles in healthy, pain free individuals. During standardised rapid arm movements, timing of onset of electromyography (EMG) was measured using intramuscular and surface recordings of the transversus abdominis (TrA), obliquus internus abdominis (OI), obliquus externus abdominis (OE), lumbar multifidus (LM) and lumbar erector spinae (LES) muscles. A single exercise session with the device led to significantly (main effect of time: P = 0.03) earlier LES EMG onset in advance of the postural perturbation induced by rapid forward arm movements from -1 ms (SD: 32 ms) at baseline to -11 ms (SD: 27 ms) post-exercise and -16 ms (SD: 22 ms) at 10-min Wash-Out after the FRED exercise bout. The timing of EMG onset of the other trunk muscles was not affected by the single bout of exercise. A significant correlation was found between background activity and the EMG onset times of of TrA (r = 0.6; P < 0.001), OI (r = 0.59; P < 0.001), LES (r = 0.32; P = 0.046) and LM (r = 0.77; P < 0.001). Higher levels of trunk muscle background activity were associated with later onset times. The present findings suggest that a single exposure to the postural training device can induce small changes in spinal muscle function in healthy pain free individuals.

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Section: Participantsmentioning

confidence: 99%

Section: Participantsmentioning

confidence: 99%

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

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Functional behaviour of spinal muscles after training with an exercise device developed to recruit and train postural muscles

et al. 2018

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Movement amplitude on the Functional Re-adaptive Exercise Device: deep spinal muscle activity and movement control

et al. 2017

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PurposeLumbar multifidus (LM) and transversus abdominis (TrA) show altered motor control, and LM is atrophied, in people with low-back pain (LBP). The Functional Re-adaptive Exercise Device (FRED) involves cyclical lower-limb movement against minimal resistance in an upright posture. It has been shown to recruit LM and TrA automatically, and may have potential as an intervention for non-specific LBP. However, no studies have yet investigated the effects of changes in FRED movement amplitude on the activity of these muscles. This study aimed to assess the effects of different FRED movement amplitudes on LM and TrA muscle thickness and movement variability, to inform an evidence-based exercise prescription.MethodsLumbar multifidus and TrA thickness of eight healthy male volunteers were examined using ultrasound imaging during FRED exercise, normalised to rest at four different movement amplitudes. Movement variability was also measured. Magnitude-based inferences were used to compare each amplitude.ResultsExercise at all amplitudes recruited LM and TrA more than rest, with thickness increases of approximately 5 and 1 mm, respectively. Larger amplitudes also caused increased TrA thickness, LM and TrA muscle thickness variability and movement variability. The data suggests that all amplitudes are useful for recruiting LM and TrA.ConclusionsA progressive training protocol should start in the smallest amplitude, increasing the setting once participants can maintain a consistent movement speed, to continue to challenge the motor control system.Electronic supplementary materialThe online version of this article (doi:10.1007/s00421-017-3648-3) contains supplementary material, which is available to authorized users.

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Deep and superficial cervical muscles respond differently to unstable motor skill tasks

Röijezon

Jull

Djupsjöbacka³

et al. 2021

Human Movement Science

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Trunk muscle activation during movement with a new exercise device for lumbo‐pelvic reconditioning

Cited by 11 publications

References 38 publications

Functional behaviour of spinal muscles after training with an exercise device developed to recruit and train postural muscles

Functional behaviour of spinal muscles after training with an exercise device developed to recruit and train postural muscles

Movement amplitude on the Functional Re-adaptive Exercise Device: deep spinal muscle activity and movement control

Deep and superficial cervical muscles respond differently to unstable motor skill tasks

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