Browsing by Author "Nepocatych, Svetlana"

Now showing 1 - 4 of 4
  • Thumbnail Image
    Item
    Acute Effect of Lower-Body Vibration as a Recovery Method After Fatiguing Exercise
    Nepocatych, Svetlana; Balilionis, Gytis; Katica, Charlie P.; Wingo, Jonathan E.; Bishop, Philip A.; University of Alabama Tuscaloosa
  • Thumbnail Image
    Item
    Effect of different warm-ups and upper-body vibration on performance in Masters Swimmers
    (University of Alabama Libraries, 2009) Nepocatych, Svetlana; Bishop, Phillip A.; University of Alabama Tuscaloosa
    ABSTRACT The purpose of the study was to evaluate the effects of no, short, or regular warm-up and Upper-Body Vibration (UBV) only or UBV+ short warm-up on swimming performance in Masters Swimmers. Six females and four males, aged 24-50, healthy master swimmers volunteered to participate in the study. Participants completed all assigned warm-ups (no, short, regular, UBV-only, or UBV + short) in counterbalanced order, rested for three minutes and completed a 50-yard (45.7 m) freestyle maximal performance time trial. Rating of perceived exertion (RPE) and heart rate (HR) were measured post warm-up and post 50-yd time trial. No significant difference (p = 0.987) was found among no, short or regular warm-up regarding 50-yd freestyle time (29.0 ± 3.7, 29.0 ± 3.6, and 29.1 ± 3.4 s, respectively). No significant difference (p = 0.563) was found among regular, UBV-only or UBV + short warm-ups regarding 50-yd freestyle time (29.1 ± 3.6, 28.9 ± 3.4, and 29.1 ± 3.6 s, respectively). RPE after no warm up (6 ± 0) was significantly lower compared to after short (13 ± 2, p < 0.001) or regular warm-up (12 ± 2, p < 0.001). RPE after regular warm-up was higher (12 ± 2) compared to UBV-only warm-up (9 ± 2), approaching statistical significance (p = 0.059). RPE post 50-yd for no, short or regular warm-up and after regular, UBV-only or UBV + short were not significantly different (p =0.76, p = 0.216). HR after no, short or regular warm-up before 50-yards was not significantly different (p = 0.062); however, a significantly higher (p = 0.023) HR was observed after regular warm-up (88 ± 15 b/min) compared to UBV + short (75 ± 9 b/min). HR post 50-yd after regular warm-up (148 ± 15 b/min) was significantly higher compared to no (136 ±20 b/min) p = 0.001, UBV-only (139 ± 12 b/min) p = 0.005 and UBV + short ( 138 ± 14 b/min) p = 0.013, but not short (142 ± 17 b/min) warm-up (p = 0.077). In conclusion, Master Swimmers may perform the same or better with no or short and UBV-only or UBV + short, compared to regular warm-up.
  • Thumbnail Image
    Item
    Effect of whole-body vibration on acute recovery after fatiguing exercise
    (University of Alabama Libraries, 2011) Nepocatych, Svetlana; Bishop, Phillip A.; University of Alabama Tuscaloosa
    High-intensity intermittent or resistance activity for a short period of time causes an increased break down of energy stores and accumulation of metabolic by-products. Increased metabolic disturbances may lead to decreased muscle contractile function which eventually will lead to muscle fatigue. Sufficient recovery time is needed for optimal competitive performance and optimizing the ability to tolerate high-intensity, various lengths and duration training loads. There are a number of recovery modalities available that have been used between training sessions, pre- and post- training, and between competitions. In order to evaluate vibration as a recovery aid that contributes to improved performance, three studies were conducted. The first study evaluated the effects of whole-body vibration (WBV) and WBV plus cooling on lower-body peak and mean anaerobic performance, leg volume, perceived recovery, and muscle soreness. The second study evaluated the effects of WBV and upper-body vibration (UBV) on upper-body performance, perceived recovery and muscle soreness, and the third study evaluated the effect of WBV on sprint performance, leg volume and perceived recovery. Healthy and physically active male and female volunteers participated in the studies. In a repeated measures, counterbalanced design, participants completed fatiguing exercise, each recovery treatment and performance test. As indicated by the group mean data, results of the first study suggested possible psychological but not performance enhancing benefits after the use of WBV and WBVC as a recovery method. The findings of the second study suggest no psychological or physiological benefits using WBV and UBV as a recovery modality. The results of the third study suggest no benefits for WBV in enhancing recovery or sprint performance. However, while actual recovery was not enhanced, perceived recovery was better after WBV compared to no vibration. Even though actual recovery or performance was not enhanced by the addition of WBV to the recovery, psychological perception of better recovery may be of some benefit for training or competition. It appears that acute exposure to WBV does not enhance performance under the conditions of this study.
  • Thumbnail Image
    Item
    Thermoregulatory Adaptations following Sprint Interval Training
    Wingo, Jonathan E.; Katica, Charlie P.; Nepocatych, Svetlana; Del Pozzi, Andrew T.; Ryan, Greg A.; University of Alabama Tuscaloosa
    Traditional endurance training typically involves weeks of long-duration (60–90 min) exercise performed at a moderate to vigorous intensity. An alternative paradigm, sprint interval training, is characterized by multiple bouts of short-duration, high-intensity exercise. Similar fitness benefits from the two paradigms have been demonstrated, but whether sprint interval training—like traditional endurance training—induces heat acclimation remains unclear.