Postural and respiratory functions of the pelvic floor muscles

Hodges, Paul W.; Sapsford, Ruth; Pengel, Liset

doi:10.1002/nau.20232

Cited by 337 publications

(319 citation statements)

References 43 publications

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“…A similar feed-forward response in the PFM during arm movements have previously been shown by Hodges et al (2007) and by Smith et al (2007a), however they did not find as early EMG onsets as we found. That may be due to differences in methodology used in the studies.…”

Section: Discussionsupporting

confidence: 91%

“…It is possible that our results in the arm lift would have been more similar to the ones Hodges et al (2007) and Smith et al (2007a) found if we had been able to relate the EMG onset of the PFM to the EMG onset of the deltoid muscle in addition to the initiation of the movement.…”

Section: Discussionsupporting

confidence: 63%

“…the prime mover, from the analyses of the EMG onsets due to increased background activity and we can therefore not compare the time of our EMG onsets of the PFM to the result found by Hodges et al (2007) and Smith et al (2007a). However, when looking at the EMG onset of the PFM in relation to the prime mover during the leg lifts our results are more similar with the results of Hodges et al (2007) and Smith et al (2007a).…”

Section: Discussioncontrasting

confidence: 41%

“…That may be due to differences in methodology used in the studies. Hodges et al (2007) and Smith et al (2007a) related the EMG onset of the PFM to the prime mover rather than the initiation of the movement. Unfortunately we had to exclude the deltoid muscle, i.e.…”

Section: Discussionmentioning

confidence: 99%

“…However, there is no standard method described in the literature for how to determine EMG onsets. Both visual (Hodges et al, 2007;Lee et al, 2009;Smith et al, 2007a) and computerbased methods (Hodges and Richardson, 1997b;Marshall and Murphy, 2003) are used. Hodges and Bui (1996) evaluated different combinations of computer-based parameters: (a) width of window of samples required to exceed threshold (ms), (b) the magnitude of the deviation from the baseline required to indicate the threshold (SD), and (c) low pass filter (Hz).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The postural response of the pelvic floor muscles during limb movements: A methodological electromyography study in parous women without lumbopelvic pain

Sjödahl

Kvist

Gutke

et al. 2009

Clinical Biomechanics

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However, coordination of muscle activity by appropriate timing and amplitude is necessary for maintaining adequate stability in the lumbopelvic area. The aim was to develop a method using surface electromyography to detect a feed-forward response in the pelvic floor muscles during limb movements performed at a comfortable speed applicable in future studies for women with lumbopelvic pain.Methods: Ten parous women with no lumbopelvic pain in the past 12 months were included.Surface electromyographic activity was recorded from the pelvic floor muscles and unilaterally from transverses abdominis/internal oblique, rectus abdominis, erector spinae, hip adductors, rectus femoris and deltoid. The subjects performed leg lift in supine and arm lift from standing. The electromyographic onset was related to the initiation of the movement.Findings: In the majority of the women the electromyographic onsets of the pelvic floor muscles occurred before the movement was initiated, regardless of whether it was a leg or an arm lift. In addition, electromyographic onsets for the other muscles, except the rectus abdominis during the arm lift, also occurred prior to the movements. Interpretation:The findings suggest a feed-forward response in the pelvic floor muscles during leg and arm lifts in women who had previously given birth and were without lumbopelvic pain. Movements performed at a comfortable speed seem to be useful in order to detect such a response.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 63%