Effekt des Bridging auf die Bauchmuskulatur bei Rückenschmerzen

Abstract

CONTEXT:

Individuals with low back pain (LBP) are thought to benefit from interventions which improve motor control of the lumbopelvic region. It is unknown if therapeutic exercise can acutely facilitate activation of lateral abdominal musculature.

OBJECTIVE:

To investigate the ability of 2 types of bridging exercise progressions to facilitate lateral abdominal muscles during an abdominal drawing-in maneuver (ADIM) in individuals with LBP.

DESIGN:

Randomized Control Trial.

SETTING:

University research laboratory.

PARTICIPANTS:

Fifty-one adults (mean±SD; age= 23.1±6.0 years, height= 173.6±10.5, cm, mass= 74.7±14.5 kg, and 64.7% female) with LBP. All participants met 3 out of 4 criteria for stabilization classification LBP or at least 6 best fit criteria for stabilization classification.

INTERVENTIONS:

Participants were randomly assigned to either a traditional bridge progression or suspension exercise bridge progression, each with 4 levels of progressive difficulty. Individuals performed 5 repetitions at each level and were progressed based on specific criteria.

MAIN OUTCOME MEASURES:

Muscle thickness of the external oblique (EO), internal oblique (IO) and transversus abdominis (TrA) was measured during an ADIM using ultrasound imaging pre and post-intervention. A contraction ratio (contracted thickness/resting thickness) of the EO, IO, and TrA was used to quantify changes in muscle thickness.

RESULTS:

There was not a significant increase in EO (F1,47= 0.44, P= .51) or IO (F1,47= .30, P= .59) contraction ratios following the exercise progression. There was a significant (F1,47= 4.05, P= .05) group by time interaction where the traditional bridge progression (Pre= 1.55±0.22; Post= 1.65±0.21) resulted in greater (P= .03) TrA contraction ratio following exercise than the suspension exercise bridge progression (Pre= 1.61±.31; Post= 1.58±.28).

CONCLUSION:

A single exercise progression did not acutely improve muscle thickness of the EO and IO. The magnitude of change in TrA muscle thickness following the traditional bridging progression was less than the minimal detectable change, thus not clinically significant.