Neurocognitive responses to a single session of static squats with whole body vibration.
Abstract
The purpose of this study was to determine if the head accelerations using a common whole body vibration (WBV) exercise protocol acutely reduced neurocognition in healthy subjects. Second, we investigated differential responses to WBV plates with 2 different delivery mechanisms: vertical and rotational vibrations. Twelve healthy subjects (N = 12) volunteered and completed a baseline (BASE) neurocognitive assessment: the Immediate Postconcussion Assessment and Cognitive Test (ImPACT). Subjects then participated in 3 randomized exercise sessions separated by no more than 2 weeks. The exercise sessions consisted of five 2-minute sets of static hip-width stance squats, with the knees positioned at a 45 degrees angle of flexion. The squats were performed with no vibration (control [CON]), with a vertically vibrating plate (vertical vibration [VV]), and with a rotational vibrating plate (rotational vibration [RV]) set to 30 Hz with 4 mm of peak-to-peak displacement. The ImPACT assessments were completed immediately after each exercise session and the composite score for 5 cognitive domains was analyzed: verbal memory, visual memory, visual motor speed, reaction time, and impulse control. Verbal memory scores were unaffected by exercise with or without vibration (p = 0.40). Likewise, visual memory was not different (p = 0.14) after CON, VV, or RV. Significant differences were detected for visual motor speed (p = 0.006); VV was elevated compared with BASE (p = 0.01). There were no significant differences (p = 0.26) in reaction time or impulse control (p = 0.16) after exercise with or without vibration. In healthy individuals, 10 minutes of 30 Hz, 4-mm peak-to-peak displacement vibration exposure with a 45 degrees angle of knee flexion did not negatively affect neurocognition.
Autor: Amonette WE, Boyle M, Psarakis MB, Barker J, Dupler TL, Ott SD
Organisation: 1Human Performance Laboratory, Department of Clinical, Health, and Applied Sciences, University of Houston-Clear Lake, Houston, Texas; 2Department of Orthopedics, University of Texas Health Science Center, Houston, Texas; and 3Memorial Hermann Ironman
Jahr: 2015
- J Strength Cond Res
- 2015
- 29(1)
- 96-100
- PMID: 25536489
GID: 5929
Erstellt am: 28.02.2023