OBJECTIVE： To identify muscle imbalances and pelvic tilt with implications for low back pain in Keirin cyclists. METHODS： We enrolled 16 Keirin cyclists （mean age, 32.2 ±8.6 years） and 16 college students as ...OBJECTIVE： To identify muscle imbalances and pelvic tilt with implications for low back pain in Keirin cyclists. METHODS： We enrolled 16 Keirin cyclists （mean age, 32.2 ±8.6 years） and 16 college students as controls （24.3 ± 2.3 years）. We measured pelvic tilt, heel-buttock distance （HBD）, iliopsoas flexibility （using the Thomas test）, hamstring flexibility （using the straight-leg-raise [SLR] test）, finger floor distance （FFD）, and isometric and isokinetic hamstring and quadriceps muscle strength. These parameters were compared between the two groups, as well as between the right and left sides, by using the Mann-Whitney U test or unpaired t test. RESULTS： The results of this study revealed a significant anterior pelvic tilt at standing position and significantly higher HBD, SLR, and FFD in the Keirin cyclists than in the controls. The isokinetic muscle strength of the quadrieeps and hamstring, and the hamstring-to-quadriceps ratio at high angular velocity were significantly greater in the Keirin cyclists. No significant differences were found between the right and left sides. CONCLUSION： This study revealed that the Keirin cyclists had an anterior pelvic tilt and imbalance in hip muscle flexibility, but the difference between the right and left sides were not significant.展开更多
Squatting movements are used frequently in the activities of daily living and squatting exercises are used to strengthen abdominal core and lower limb muscles. However, many individuals cannot perform a traditional sq...Squatting movements are used frequently in the activities of daily living and squatting exercises are used to strengthen abdominal core and lower limb muscles. However, many individuals cannot perform a traditional squat. An alternative is to hire a physical trainer or coach for supervision which can be prohibitively expensive. The DB Method<sup><sup><sup>®</sup></sup></sup> machine is unique and affordable. A product satisfaction descriptive survey to owners of The DB Method machine describes increased gluteal, core, pelvic floor and lower body strength, an improvement in gluteal region shape, and an increase in activity and energy level. A surprising result of the survey was that this DB Method also seemed to strengthen the pelvic floor muscles and, in some cases, to lessen urinary incontinence. In this article, the results of this survey are described as the kinetics of this machine relative to the lower limbs and the pelvic floor muscles. A comparison between traditional squats and The DB Method and the benefits of using The DB Method are discussed.展开更多
文摘OBJECTIVE： To identify muscle imbalances and pelvic tilt with implications for low back pain in Keirin cyclists. METHODS： We enrolled 16 Keirin cyclists （mean age, 32.2 ±8.6 years） and 16 college students as controls （24.3 ± 2.3 years）. We measured pelvic tilt, heel-buttock distance （HBD）, iliopsoas flexibility （using the Thomas test）, hamstring flexibility （using the straight-leg-raise [SLR] test）, finger floor distance （FFD）, and isometric and isokinetic hamstring and quadriceps muscle strength. These parameters were compared between the two groups, as well as between the right and left sides, by using the Mann-Whitney U test or unpaired t test. RESULTS： The results of this study revealed a significant anterior pelvic tilt at standing position and significantly higher HBD, SLR, and FFD in the Keirin cyclists than in the controls. The isokinetic muscle strength of the quadrieeps and hamstring, and the hamstring-to-quadriceps ratio at high angular velocity were significantly greater in the Keirin cyclists. No significant differences were found between the right and left sides. CONCLUSION： This study revealed that the Keirin cyclists had an anterior pelvic tilt and imbalance in hip muscle flexibility, but the difference between the right and left sides were not significant.
文摘Squatting movements are used frequently in the activities of daily living and squatting exercises are used to strengthen abdominal core and lower limb muscles. However, many individuals cannot perform a traditional squat. An alternative is to hire a physical trainer or coach for supervision which can be prohibitively expensive. The DB Method<sup><sup><sup>®</sup></sup></sup> machine is unique and affordable. A product satisfaction descriptive survey to owners of The DB Method machine describes increased gluteal, core, pelvic floor and lower body strength, an improvement in gluteal region shape, and an increase in activity and energy level. A surprising result of the survey was that this DB Method also seemed to strengthen the pelvic floor muscles and, in some cases, to lessen urinary incontinence. In this article, the results of this survey are described as the kinetics of this machine relative to the lower limbs and the pelvic floor muscles. A comparison between traditional squats and The DB Method and the benefits of using The DB Method are discussed.
