Evaluation of pelvic floor muscle activity during running in continent and incontinent women: An exploratory study

Leitner, Monika; Moser, Helene; Eichelberger, Patric; Kühn, Annette; Radlinger, Lorenz

doi:10.1002/nau.23151

Cited by 52 publications

(67 citation statements)

References 39 publications

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“…Physical activity and coughing are known to manifest SUI 41,42 and it was shown that maximal EMG activity of the PFM is reached at about 120 ms after the impact of coughing 43 or running. 28 Taking into account that the FVC in the present study demonstrated the peak activity after about 500 ms, it has to be questioned, whether the strategy/training of FVC can at all contribute to continence. Although the time to peak activity during FVC seems long, it still may contribute to the preparation of the quicker reflexive responses.…”

Section: Discussionmentioning

confidence: 67%

Pelvic floor muscle activity during fast voluntary contractions in continent and incontinent women

Leitner

Moser

Eichelberger

et al. 2019

Neurourology and Urodynamics

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Aims Stress urinary incontinence (SUI) has also been attributed to a lower speed of contraction of the pelvic floor muscles (PFM). Therefore, PFM assessment and training implement fast voluntary contractions (FVC). The purpose of the study was to explore FVC regarding feasibility, on‐/offset and rate of activity determination, as well as differences between continent (CON) and stress urinary incontinent (SUI) women. Methods Fifty women were included and examined by means of PFM EMG during rest, maximum voluntary contractions (MVC), and five FVC. MVC‐peak activity was used to normalize EMG‐data. On‐/offset of muscle activity was determined as mean of rectified rest activity plus 1 standard deviation. Linear regression was calculated for rate of activity from onset to peak, peak to offset, and within 200 ms after both onset and peak. Peak activity and time variables related to onset, peak, and offset were calculated. Results On‐/offsets were evaluable for 234/222 of 250 FVC by a computer‐based algorithm, 16/28 on‐/offsets had to be determined manually. There was no significant difference between groups (CON/SUI) regarding FVC peak (92.1/99.3 %MVC), time to peak (514.2/525.6 ms), and increase of activity (182.8/182.1 %MVC/s). The SUI group showed a significantly slower activity decrease (−120.7/−74.4 %MVC/s). Conclusions FVC analyses were shown to be feasible. The significant difference observed between the groups did not refer to activity increase but instead to a prolonged relaxation phase in the SUI group. This prompts to reconsider the interpretation of FVC in PFM testing and training.

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Section: Discussionmentioning

confidence: 67%

Pelvic floor muscle activity during fast voluntary contractions in continent and incontinent women

Leitner

Moser

Eichelberger

et al. 2019

Neurourology and Urodynamics

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“…14 The mean EMG pre-activity and reflex activity increased with speed. Of note, EMG values during running in women with stress urinary incontinence exceeded 100% of activity during maximum voluntary contraction at the highest speed of 15 km/hour.…”

Section: Literature Updatementioning

confidence: 95%

Role of chronic exercise on pelvic floor support and function

Shaw

Nygaard²

2017

Current Opinion in Urology

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Purpose of review To summarize recent literature about the potential role of chronic exercise on pelvic floor support and function. Recent findings Stress urinary incontinence is common during physical activity. Scant evidence suggests a dose-response association between higher volumes of exercise and urinary incontinence. Athletes do not appear to have greater pelvic floor muscle strength or worse pelvic floor support compared to non-athletes. Pelvic floor muscle electromyographic activity increases substantially as running speeds increase. Summary Based on the current literature, no strong conclusions can be drawn about whether chronic exercise exerts a positive or negative influence on pelvic floor support and function. Adopting longitudinal research methodology that prospectively monitors exercise exposure and subsequent changes in pelvic floor support and function would help to reduce selection bias associated with cross sectional studies on groups of athletes.

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“…19,20 Concurrent EMG recordings of the same sample that were published previously did not confirm a relaxation before T0. 21 On the contrary, high EMG values were shown in the 30 ms time interval before heelstrike, which is also the time interval where both feet are off the ground.…”

Section: Discussionmentioning

confidence: 94%

“…For the activity 30 ms after heel-strike high EMG values have been demonstrated, 21 which allows assumption of a concentric muscle action. Heel-strike seems to be a "turningpoint" which terminates the caudal displacement and initiates a quick concentric action.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of pelvic floor kinematics in continent and incontinent women during running: An exploratory study

Leitner

Moser

Eichelberger

et al. 2017

Neurourology and Urodynamics

Self Cite

View full text Add to dashboard Cite

show abstract

Evaluation of pelvic floor muscle activity during running in continent and incontinent women: An exploratory study

Cited by 52 publications

References 39 publications

Pelvic floor muscle activity during fast voluntary contractions in continent and incontinent women

Pelvic floor muscle activity during fast voluntary contractions in continent and incontinent women

Role of chronic exercise on pelvic floor support and function

Evaluation of pelvic floor kinematics in continent and incontinent women during running: An exploratory study

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