title: Effects of dynamic warm-up with and without a weighted vest on lower extremity power performance of high school male athletes.
abstract: This study examined lower extremity power performance, using the Margaria-Kalamen Power Test, after a dynamic warm-up with (resisted) and without (nonresisted) a weighted vest. Sixteen (n = 16) high school male football players, ages 14-18 years, participated in 2 randomly ordered testing sessions. One session involved performing the team's standard dynamic warm-up while wearing a vest weighted at 5% of the individual athlete's body weight before performing 3 trials of the Margaria-Kalamen Power Test. The second session involved performing the same dynamic warm-up without wearing a weighted vest before performing 3 trials of the Margaria-Kalamen Power Test. The warm-up performed by the athletes consisted of various lower extremity dynamic movements over a 5-minute period. No significant difference was found in power performance between the resisted and nonresisted dynamic warm-up protocols (p > 0.05). The use of a dynamic warm-up with a vest weighted at 5% of the athlete's body weight was not advantageous for increasing lower extremity power output in this study. The results of this study suggest that resisted dynamic warm-up protocols may not augment the production of power performance in high school football players.
authors.affiliation: Department of Physical Therapy, Wichita State University, Wichita, Kansas, USA. michael.reiman@wichita.edu
authors.forename: Michael P
authors.initials: MP
authors.lastname: Reiman
authors.forename: Ashley M
authors.initials: AM
authors.lastname: Peintner
authors.forename: Amber L
authors.initials: AL
authors.lastname: Boehner
authors.forename: Cori N
authors.initials: CN
authors.lastname: Cameron
authors.forename: Jessica R
authors.initials: JR
authors.lastname: Murphy
authors.forename: John W
authors.initials: JW
authors.lastname: Carter
mesh_terms: D000293:Adolescent; D003020:Clothing; D005538:Football / Q000502:physiology*; D006801:Humans; D035002:Lower Extremity / Q000502:physiology*; D008297:Male; D009068:Movement / Q000502:physiology; D052580:Muscle Stretching Exercises; D018482:Muscle, Skeletal / Q000502:physiology; D010806:Physical Education and Training / Q000379:methods*; D010809:Physical Fitness / Q000502:physiology; D016474:Weight-Bearing / Q000502:physiology*