title: Effects of different warm-up modalities on power output during the high pull.
abstract: This study compared the effects of six warm-up modalities on peak power output (PPO) during the high-pull exercise. Nine resistance-trained males completed six trials using different warm-ups: high-pull specific (HPS), cycle, whole body vibration (WBV), cycle+HPS, WBV+HPS and a control. Intramuscular temperature (Tm) was increased by 2°C using WBV or cycling. PPO, Tmand electromyography (EMG) were recorded during each trial. Two high-pulls were performed prior to and 3 min after participants completed the warm-up. The greatest increase in PPO occurred with HPS (232.8 ± 89.7 W, P < 0.001); however, this was not different to combined warm-ups (cycle+HPS 158.6 ± 121.1 W; WBV+HPS 177.3 ± 93.3 W, P = 1.00). These modalities increased PPO to a greater extent than those that did not involve HPS (all P < 0.05). HPS took the shortest time to complete, compared to the other conditions (P < 0.05). EMG did not differ from pre to post warm-up or between modalities in any of the muscles investigated. No change in Tmoccurred in warm-ups that did not include cycling or WBV. These results suggest that a movement-specific warm-up improves performance more than temperature-related warm-ups. Therefore, mechanisms other than increased muscle temperature and activation may be important for improving short-term PPO.
authors.affiliation: a School of Sport and Exercise , Massey University , Palmerston North , New Zealand.
authors.forename: Matthew John
authors.initials: MJ
authors.lastname: Barnes
authors.affiliation: a School of Sport and Exercise , Massey University , Palmerston North , New Zealand.
authors.forename: Ashley
authors.initials: A
authors.lastname: Petterson
authors.affiliation: a School of Sport and Exercise , Massey University , Palmerston North , New Zealand.
authors.forename: Darryl J
authors.initials: DJ
authors.lastname: Cochrane
mesh_terms: D001642:Bicycling / Q000502:physiology; D001831:Body Temperature; D018592:Cross-Over Studies; D004576:Electromyography; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology; D018482:Muscle, Skeletal / Q000502:physiology; D014732:Vibration; D063996:Warm-Up Exercise; D014891:Weight Lifting / Q000502:physiology*; D055815:Young Adult
keywords: Olympic weightlifting; electromyography; muscle temperature; post activation potentiation