TY  - JOUR
A1  - Hortobagyi, Tibor
A1  - Lesinski, Melanie
A1  - Fernandez-del-Olmo, Miguel
A1  - Granacher, Urs
T1  - Small and inconsistent effects of whole body vibration on athletic performance: a systematic review and meta-analysis
JF  - European journal of applied physiology
N2  - We quantified the acute and chronic effects of whole body vibration on athletic performance or its proxy measures in competitive and/or elite athletes.
 Systematic literature review and meta-analysis.
 Whole body vibration combined with exercise had an overall 0.3 % acute effect on maximal voluntary leg force (-6.4 %, effect size = -0.43, 1 study), leg power (4.7 %, weighted mean effect size = 0.30, 6 studies), flexibility (4.6 %, effect size = -0.12 to 0.22, 2 studies), and athletic performance (-1.9 %, weighted mean effect size = 0.26, 6 studies) in 191 (103 male, 88 female) athletes representing eight sports (overall effect size = 0.28). Whole body vibration combined with exercise had an overall 10.2 % chronic effect on maximal voluntary leg force (14.6 %, weighted mean effect size = 0.44, 5 studies), leg power (10.7 %, weighted mean effect size = 0.42, 9 studies), flexibility (16.5 %, effect size = 0.57 to 0.61, 2 studies), and athletic performance (-1.2 %, weighted mean effect size = 0.45, 5 studies) in 437 (169 male, 268 female) athletes (overall effect size = 0.44).
 Whole body vibration has small and inconsistent acute and chronic effects on athletic performance in competitive and/or elite athletes. These findings lead to the hypothesis that neuromuscular adaptive processes following whole body vibration are not specific enough to enhance athletic performance. Thus, other types of exercise programs (e.g., resistance training) are recommended if the goal is to improve athletic performance.
KW  - Exercise
KW  - Muscle
KW  - Force
KW  - Power
KW  - Skill
KW  - Reflex
KW  - Endocrine
KW  - Metabolism
Y1  - 2015
U6  - https://doi.org/10.1007/s00421-015-3194-9
SN  - 1439-6319
SN  - 1439-6327
VL  - 115
IS  - 8
SP  - 1605
EP  - 1625
PB  - Springer
CY  - New York
ER  - 
TY  - JOUR
A1  - Beijersbergen, Chantal M. I.
A1  - Granacher, Urs
A1  - Gaebler, Martijn
A1  - DeVita, Paul
A1  - Hortobagyi, Tibor
T1  - Hip mechanics underlie lower extremity power training-induced increase  in old adults’ fast gait velocity
BT  - the Potsdam Gait Study (POGS)
JF  - Gait & posture
N2  - Methods: As part of the Potsdam Gait Study (POGS), healthy old adults completed a no-intervention control period (69.1 +/- 4A yrs, n =14) or a power training program followed by detraining (72.9 +/- 5.4 yrs, n = 15).We measured isokinetic knee extensor and plantarflexor power and measured hip, knee and ankle kinetics at habitual, fast and standardized walking speeds. Results: Power training significantly increased isokinetic knee extensor power (25%), plantarflexor power (43%), and fast gait velocity (5.9%). Gait mechanics underlying the improved fast gait velocity included increases in hip angular impulse (29%) and H1 work (37%) and no changes in positive knee (K2) and A2 work. Detraining further improved fast gait velocity (4.7%) with reductions in H1(-35%), and increases in K2 (36%) and A2 (7%). Conclusion: Power training increased fast gait velocity in healthy old adults by increasing the reliance on hip muscle function and thus further strengthened the age-related distal-to-proximal shift in muscle function. (C) 2016 Elsevier B.V. All rights reserved.
KW  - Walking
KW  - Biomechanics
KW  - Detraining
KW  - Muscle
KW  - Exercise
Y1  - 2017
U6  - https://doi.org/10.1016/j.gaitpost.2016.12.024
SN  - 0966-6362
SN  - 1879-2219
VL  - 52
SP  - 338
EP  - 344
PB  - Elsevier
CY  - Clare
ER  -