Search Results

You are looking at 1 - 9 of 9 items for :

  • "peak power output" x
  • Athletic Training, Therapy, and Rehabilitation x
Clear All
Restricted access

Prue Cormie, Jeffrey M. McBride and Grant O. McCaulley

The purpose of this investigation was to examine the impact of load on the power-, force- and velocity-time curves during the jump squat. The analysis of these curves for the entire movement at a sampling frequency of 200–500 Hz averaged across 18 untrained male subjects is the most novel aspect of this study. Jump squat performance was assessed in a randomized fashion across five different external loads: 0, 20, 40, 60, and 80 kg (equivalent to 0 ± 0, 18 ± 4, 37 ± 8, 55 ± 12, 74 ± 15% of 1RM, respectively). The 0-kg loading condition (i.e., body mass only) was the load that maximized peak power output, displaying a significantly (p ≤ .05) greater value than the 40, 60, and 80 kg loads. The shape of the force-, power-, and velocity-time curves changed significantly as the load applied to the jump squat increased. There was a significantly greater rate of power development in the 0 kg load in comparison with all other loads examined. As the first comprehensive illustration of how the entire power-, force-, and velocity-time curves change across various loading conditions, this study provides extensive evidence that a load equaling an individuals body mass (i.e., external load = 0 kg) maximizes power output in untrained individuals during the jump squat.

Restricted access

Yasuki Sekiguchi, Erica M. Filep, Courteney L. Benjamin, Douglas J. Casa and Lindsay J. DiStefano

method in 39°C and 56% RH for 8 d. Adaptations in plasma volume, HR, T int , T skin , and sweat loss were measured by heat stress test prior to and following heat acclimation. HST was consisted of 60 min at 35% of peak power output in 39°C and 53% RH. EUH (1.4% BML) and DEH (2.4% BML) groups performed

Restricted access

Mark G.L. Sayers and Stephen Bishop

for the development of peak power output in professional rugby players . J Strength Cond Res. 2010 ; 24 ( 1 ), 43 – 47 . PubMed doi: 10.1519/JSC.0b013e3181c63c64 19935101 10.1519/JSC.0b013e3181c63c64 8. Jandacka D , Vaverka F . A regression model to determine load for maximum power output

Restricted access

Andrew Cox, Marcie B. Fyock-Martin and Joel R. Martin

output; PPO = peak power output; RCT = randomized control trial; RCTH = respiratory compensation threshold; ROTC = reserve officers training corps; RPE = rating of perceived exertion; SVC = slow vital capacity; VT = ventilatory threshold. Results of Evidence Quality Assessment The four studies all scored

Restricted access

Kajetan J. Słomka, Slobodan Jaric, Grzegorz Sobota, Ryszard Litkowycz, Tomasz Skowronek, Marian Rzepko and Grzegorz Juras

increase in jump height but also with a prominent decrease in the measured peak force and a somewhat less prominent decrease in the peak power output ( Mandic, Jakovljevic, & Jaric, 2015 ; Mandic et al., 2016 ). This finding was an apparent consequence of changed temporal patterns in all variables

Restricted access

Deepika Singla and M. Ejaz Hussain

, might have led to an increased power output. 1 Chelly et al 1 found enhanced peak power output after an 8-week plyometric training (comprising of both upper body and lower body plyometric training) in adolescent handball players. Handball and baseball players have been reported to have improved body

Restricted access

Amador García-Ramos, Alejandro Torrejón, Antonio J. Morales-Artacho, Alejandro Pérez-Castilla and Slobodan Jaric

Physiol Occup Physiol . 1987 ; 56 ( 6 ): 650 – 656 . PubMed doi:10.1007/BF00424805 3678217 10.1007/BF00424805 8. Nakamura Y , Mutoh Y , Miyashita M . Determination of the peak power output during maximal brief pedalling bouts . J Sports Sci . 1985 ; 3 ( 3 ): 181 – 187 . PubMed doi:10

Restricted access

Tyler W.D. Muddle, David H. Fukuda, Ran Wang, Joshua J. Riffe, David D. Church, Kyle S. Beyer, Jay R. Hoffman and Jeffrey R. Stout

Body Power Countermovement jump Following MVC testing, participants performed three bilateral CMJs while standing on a portable force platform (AccuPower; Advanced Mechanical Technology Inc.). During each jump, maximal height (CMJ HT ), peak force (CMJ PKF ), peak power output (CMJ PP ), and rate of

Restricted access

Mário A.M. Simim, Marco Túlio de Mello, Bruno V.C. Silva, Dayane F. Rodrigues, João Paulo P. Rosa, Bruno Pena Couto and Andressa da Silva

logger; GPS = global positioning system; DL = data logger; PPO = peak power output; SRM = Schoberer bike measurement system; W = workload; SP = speed; CF = crank frequency; DC = total distance covered; TZ = time in arbitrary speed zones; DZ = distance in arbitrary zones; COMP = competition situations