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Volume: 38
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Index: December 2010
Clinical Focus:Respiratory Care
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December 2010
Clinical Focus: Respiratory Medicine
  • Asthma and the athlete
    • Vocal cord dysfunction
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    • Exercise-induced bronchospasm
  • COPD
    • Obesity and COPD
    • Relationship between COPD and nutrition intake
  • Treatment options for steroid-induced osteoporosis in men
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    • Metered-dose vs other types of inhalers
  • Respiratory infections in winter sports athletes
  • Asthma in elite athletes
  • Pulmonary rehabilitation and physical activity
  • Fitness and long-term oxygen therapy/lung transplantation
  • Airflow function and the metabolic syndrome
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doi: 10.3810/psm.2009.12.1739
The Physician and Sportsmedicine: Volume 37: No.4
The Acute Effects of Local Vibration Therapy on Ankle Sprain and Hamstring Strain Injuries
Kimberly S. Peer, EdD, ATC, LAT; Jacob E. Barkley, PhD; And Danielle M. Knapp, BS
Abstract: Aims The purpose of this study was to determine if biomechanical muscle stimulation (BMS) applied directly to different segments of the body using the Swisswing® device results in acute improvements in range of motion and perceived stiffness in physically active adults with acute or subacute ankle sprain and hamstring strain injuries. Methods Two separate groups of individuals with grade I or II ankle sprain (n = 5; 21.2 ± 1.9 years) or hamstring strain (Nn= 5; 20.6 ± 1.8 year) underwent 20 minutes of a controlled therapy consisting of ice, compression, and elevation, and 10 minutes of segmental BMS using the Swisswing® at 20 Hz. Ankle (dorsiflexion, plantar flexion, inversion, eversion), hamstring flexibility, and subjecve ratings of stiffness were assessed prior to control treatment (baseline), post-control treatment, and post-Swisswing® treatment. Results Relative to the post-control condition, Swisswing® treatment significantly (P < 0.03 for all) increased ankle dorsiflexion and eversion and hamstring flexibility, and significantly (P ≤ 0.05) decreased perceived ankle and hamstring stiffness. Conclusion Segmental BMS therapy using the Swisswing® device appears to have significant acute benefits for improving flexibility and reducing perceived stiffness in healthy adults with ankle or hamstring injury. Future research is needed to determine the duration of these effects and if repeated periods of segmental BMS therapy aid in long-term injury recovery.

Keywords: biomechanical muscle stimulation; athletic injury; perceived stiffness; range of motion


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