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Jennifer Sygo, Alicia Kendig Glass, Sophie C. Killer and Trent Stellingwerff

multiple track events, including sprints, hurdles, and middle-distance events. Unlike track events, which rely on a single timed race to determine outcomes, field event athletes must translate speed (forward or rotational) and power into the farthest or highest jump or throw, with the best outcome over

Open access

Kyle Davis, Stephen Rossi, Jody Langdon and Jim McMillan

The purpose of the present investigation was to examine the relationship between jumping and sprinting among members of a regionally competitive club-level ultimate team. Twenty-two subjects (mean ± SD; 21.1±2.26 year) volunteered to participate in two testing sessions the week before the team’s regional tournament. Testing sessions included body-composition measurement, a 40-yard sprint (with a 10-yard split time recorded), a standing long jump (LJ) and a vertical jump (VJ). Pearson product-moment correlations revealed a significant negative correlation between LJ and 40-yard sprint time. Significant positive relationships were observed between VJ height and 10-yard power, VJ power and 10-yard power, VJ power and relative 10-yard power, relative VJ power and relative 10-yard power, BJ distance and 10-yard power, VJ height and 40-yard power, VJ power and 40-yard power, and relative VJ power and relative 40-yard power. BJ distance related significantly to 40-yard velocity, 40-yard power and 40-yard relative power. There appears to be a relationship between jumping ability and sprinting in this population, but more studies with this population are needed to confirm these results.

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Laura K. Fewell, Riley Nickols, Amanda Schlitzer Tierney and Cheri A. Levinson

heart beats per minute. The CSCS then used the following equations to calculate patients’ VO 2 max scores: VO 2 max = 111.33 − (0.42 × HR) for males; VO 2 max = 65.81 − (0.1847 × HR) for females. Vertical jump was utilized to assess patients’ power output and was measured at the treatment center using

Open access

Kristin K. Sheehan and F. Clark Power

Open access

John D. McCamley, Eric L. Cutler, Kendra K. Schmid, Shane R. Wurdeman, Jason M. Johanning, Iraklis I. Pipinos and Sara A. Myers

in spatiotemporal measures influence joint torque and power alterations in PAD gait. Wurdeman et al 14 partially explored the effects of spatiotemporal measures by comparing limb joint torques and powers in patients with PAD to velocity-matched controls. This study found no significant differences

Open access

Aaron Nelson, Nathan Koslakiewicz and Thomas Gus Almonroeder

second injury involves the previously uninjured knee. It appears that there is an urgent need to improve rehabilitation following ACL reconstruction. Athletes who have undergone an ACL reconstruction often demonstrate greater interlimb knee joint kinetic (ie, joint moments and power) asymmetry during

Open access

Chunbo Liu

-input single-output (MISO) Wiener nonlinear model, and the solution provides a new way for the design of eccentric training system. Methods MISO Wiener Nonlinear Model The mathematical model was applied to indirectly get accurate eccentric power that people worked on the eccentric trainer. When the electric

Open access

Gary J. Slater, Jennifer Sygo and Majke Jorgensen

competition demands offers insight into optimum nutrition support for sprinters. Elite sprinters typically train for 1.5–4 hr/day, 5–6 days/week, with one or two of these days focused on low-intensity regenerative work. Training is typically periodized to develop maximum power of the major muscle groups using

Open access

Mhairi K. MacLean and Daniel P. Ferris

exoskeletons have managed to reduce the metabolic cost of walking compared with able-body, unassisted walking. 1 , 5 Major obstacles to reducing metabolic cost with exoskeletons are weight, portability, power supply, and transmission of exoskeleton power to the biological joints. Uphill walking, load carriage

Open access

Pirkko Markula

contexts. How matter operates as mass in gravitational force fields, is contingent on the muscles that move the bones in different planes, the type of muscle work required in each movement to react to gravity, as well as the main principles of inertia, speed, acceleration, force, work, or power. An