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Enhanced muscle activity during lumbar extension exercise with pelvic stabilization.

Lee HS - J Exerc Rehabil (2015)

Bottom Line: The electromyography and muscle strength of the MF and IL muscles were measured when the subjects performed the isometric lumbar extension strength test at the trunk angle 110°, 146°, and 182°.In addition, the trunk extensor muscle activities were measured using 50% muscle strength of maximum isometric strength during a dynamic trunk extension exercise.These results suggest that the lumbar extension exercise with pelvic stabilization may be more effective for MF and IL muscle activity compared to that without pelvic stabilization.

View Article: PubMed Central - PubMed

Affiliation: Department of Kinesiology and Medical Science, Graduate School, Dankook University, Cheonan, Korea.

ABSTRACT
The purpose of this study was to investigate whether pelvic stabilization affects multifidus (MF) and iliocostalis lumborum (IL) muscle activities during dynamic extension exercise. Nine males (age, 25.1±6.3 yr; height, 176.6±2.4 cm; body mass, 74.9±6.7 kg) performed an isometric lumbar extension strength test and dynamic exercise in an upright seated position with or without pelvic stabilization. The electromyography and muscle strength of the MF and IL muscles were measured when the subjects performed the isometric lumbar extension strength test at the trunk angle 110°, 146°, and 182°. In addition, the trunk extensor muscle activities were measured using 50% muscle strength of maximum isometric strength during a dynamic trunk extension exercise. The MF and IL muscle activities were significantly higher at 110°, 146°, and 182° with pelvic stabilization than that without pelvic stabilization during the isometric lumbar extension strength test (P<0.05) and the dynamic exercise (P<0.05). These results suggest that the lumbar extension exercise with pelvic stabilization may be more effective for MF and IL muscle activity compared to that without pelvic stabilization.

No MeSH data available.


Related in: MedlinePlus

Comparison of the iliocostalis lumborum muscle activity at 110°, 146°, and 182° during isometric lumbar extension strength testing with the pelvis stabilized (STAB) and unstabilized (UNSTAB) conditions. Values are presented as mean±standard deviation. *P<0.05 vs. UNSTAB. MVC, maximal voluntary contraction.
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f3-jer-11-6-372: Comparison of the iliocostalis lumborum muscle activity at 110°, 146°, and 182° during isometric lumbar extension strength testing with the pelvis stabilized (STAB) and unstabilized (UNSTAB) conditions. Values are presented as mean±standard deviation. *P<0.05 vs. UNSTAB. MVC, maximal voluntary contraction.

Mentions: Changes in the muscle activity of MF at 110°, 146°, and 182° with and without pelvic stabilization are shown in Fig. 2. The muscle activity of the MF was significantly higher at 110°, 146°, and 182° in pelvic stabilized condition than pelvic unstabilized condition during the isometric lumbar extension strength test (P<0.05). Changes in the muscle activity of IL at 110°, 146°, and 182° with and without pelvic stabilization are shown in Fig. 3. The muscle activity of the IL was significantly higher at 110°, 146°, and 182° in pelvic stabilized condition than pelvic unstabilized condition during the isometric lumbar extension strength test (P<0.05). Changes in the muscle activities of MF and IL with and without pelvic stabilization during dynamic exercise are shown in Fig. 4. The muscle activities of the MF and IL were significantly higher at pelvic stabilized condition than pelvic unstabilized condition during the dynamic exercise (P<0.05).


Enhanced muscle activity during lumbar extension exercise with pelvic stabilization.

Lee HS - J Exerc Rehabil (2015)

Comparison of the iliocostalis lumborum muscle activity at 110°, 146°, and 182° during isometric lumbar extension strength testing with the pelvis stabilized (STAB) and unstabilized (UNSTAB) conditions. Values are presented as mean±standard deviation. *P<0.05 vs. UNSTAB. MVC, maximal voluntary contraction.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4697788&req=5

f3-jer-11-6-372: Comparison of the iliocostalis lumborum muscle activity at 110°, 146°, and 182° during isometric lumbar extension strength testing with the pelvis stabilized (STAB) and unstabilized (UNSTAB) conditions. Values are presented as mean±standard deviation. *P<0.05 vs. UNSTAB. MVC, maximal voluntary contraction.
Mentions: Changes in the muscle activity of MF at 110°, 146°, and 182° with and without pelvic stabilization are shown in Fig. 2. The muscle activity of the MF was significantly higher at 110°, 146°, and 182° in pelvic stabilized condition than pelvic unstabilized condition during the isometric lumbar extension strength test (P<0.05). Changes in the muscle activity of IL at 110°, 146°, and 182° with and without pelvic stabilization are shown in Fig. 3. The muscle activity of the IL was significantly higher at 110°, 146°, and 182° in pelvic stabilized condition than pelvic unstabilized condition during the isometric lumbar extension strength test (P<0.05). Changes in the muscle activities of MF and IL with and without pelvic stabilization during dynamic exercise are shown in Fig. 4. The muscle activities of the MF and IL were significantly higher at pelvic stabilized condition than pelvic unstabilized condition during the dynamic exercise (P<0.05).

Bottom Line: The electromyography and muscle strength of the MF and IL muscles were measured when the subjects performed the isometric lumbar extension strength test at the trunk angle 110°, 146°, and 182°.In addition, the trunk extensor muscle activities were measured using 50% muscle strength of maximum isometric strength during a dynamic trunk extension exercise.These results suggest that the lumbar extension exercise with pelvic stabilization may be more effective for MF and IL muscle activity compared to that without pelvic stabilization.

View Article: PubMed Central - PubMed

Affiliation: Department of Kinesiology and Medical Science, Graduate School, Dankook University, Cheonan, Korea.

ABSTRACT
The purpose of this study was to investigate whether pelvic stabilization affects multifidus (MF) and iliocostalis lumborum (IL) muscle activities during dynamic extension exercise. Nine males (age, 25.1±6.3 yr; height, 176.6±2.4 cm; body mass, 74.9±6.7 kg) performed an isometric lumbar extension strength test and dynamic exercise in an upright seated position with or without pelvic stabilization. The electromyography and muscle strength of the MF and IL muscles were measured when the subjects performed the isometric lumbar extension strength test at the trunk angle 110°, 146°, and 182°. In addition, the trunk extensor muscle activities were measured using 50% muscle strength of maximum isometric strength during a dynamic trunk extension exercise. The MF and IL muscle activities were significantly higher at 110°, 146°, and 182° with pelvic stabilization than that without pelvic stabilization during the isometric lumbar extension strength test (P<0.05) and the dynamic exercise (P<0.05). These results suggest that the lumbar extension exercise with pelvic stabilization may be more effective for MF and IL muscle activity compared to that without pelvic stabilization.

No MeSH data available.


Related in: MedlinePlus