title: Comparison of the thicknesses of the transversus abdominis and internal abdominal obliques during plank exercises on different support surfaces.
abstract: [Purpose] This study applied variable plank exercises on a stable surface consisting of a mat, on an unstable surface consisting of a dynamic cushion placed under the upper extremities and lower extremities. [Subjects] Forty-three healthy male and female subjects in their 20s voluntarily consented to participate in this study. [Methods] The subjects performed the plank exercises on the three support surfaces. Ultrasound imaging was conducted while they carried out plank exercises. [Results] The changes in the thicknesses of both the transversus abdominis and internal abdominal obliques were statistically more significant for LEDCP than for MatP. In addition, the changes in the thickness of the transversus abdominis were statistically more significant for LEDCP than for UEDCP. [Conclusion] Therefore, applying an unstable condition to the lower limbs using a dynamic cushion is considered more effective during plank exercises.
authors: Department of Physical Therapy, Graduate School of Public Health, Inje University, Republic of Korea.
authors: Yong-Chan
authors: YC
authors: Do
authors: Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Republic of Korea.
authors: Won-Gyu
authors: WG
authors: Yoo
keywords: Plank exercises; Ultrasound imaging; Unstable condition
references: Exp Brain Res. 1997 Apr;114(2):362-70
references: 9166925
references: J Strength Cond Res. 2002 Aug;16(3):416-22
references: 12173956
references: J Phys Ther Sci. 2013 Jul;25(7):793-5
references: 24259855
references: J Back Musculoskelet Rehabil. 2012;25(4):239-44
references: 23220806
references: Phys Ther. 2000 Jun;80(6):564-9
references: 10842409
references: J Orthop Sports Phys Ther. 2010 May;40(5):265-76
references: 20436242
references: J Phys Ther Sci. 2013 Jul;25(7):751-2
references: 24259845
references: J Sci Med Sport. 2015 Mar;18(2):189-94
references: 24556020
references: Arch Phys Med Rehabil. 2004 Mar;85(3 Suppl 1):S86-92
references: 15034861