Search Results

You are looking at 81 - 90 of 1,437 items for :

  • "direction" x
Clear All
Restricted access

Paul F.J. Merkes, Paolo Menaspà and Chris R. Abbiss

by the Verve Cycling InfoCrank power meter. The gradient of the 250-m test section was measured with the Garmin head unit. Cycling velocity, average power output, and road gradient were recorded by the Garmin head unit at 1 Hz. Absolute wind velocity and direction were measured 2 times during every

Restricted access

Renato Claudino, Marcio José dos Santos and Giovana Zarpellon Mazo

fallers, exhibited increased activity of the EO muscles during unexpected lateral perturbations at the shoulder level as compared with young subjects ( Claudino et al., 2013 ). This was associated with increased postural sway (increased postural instability) in mediolateral direction after the disturbance

Restricted access

Helmi Chaabene, Yassine Negra, Jason Moran, Olaf Prieske, Senda Sammoud, Rodrigo Ramirez-Campillo and Urs Granacher

Well-developed levels of physical performance (eg, speed, power, change-of-direction [CoD] ability) are crucial for sporting success in handball competition. 1 , 2 It has previously been shown that many handball-specific tasks, such as the block, push, or hit, require high levels of muscle

Restricted access

Guillaume Mornieux, Elmar Weltin, Monika Pauls, Franz Rott and Albert Gollhofer

Lateral movements with changes of direction are common in many team sports such as soccer or handball. During cutting maneuvers, the athlete performs a complex dynamic task by quickly changing their direction of movement while securing their balance. Knee joint control is an essential requirement

Restricted access

Ian N. Bezodis, David G. Kerwin, Stephen-Mark Cooper and Aki I.T. Salo

field of view, either 3 or 4 consecutive steps per trial were typically analyzed. Velocity, length, and frequency values were calculated for each individual step. Step lengths were calculated by subtracting the mean of the 3 reconstructed contact-foot toe locations from each contact in the direction of

Restricted access

Daniel Wigfield, Ryan Snelgrove, Luke R. Potwarka, Katie Misener and Laura Wood

for each camp offering’s registration fee. Marketing In 2017, under the direction of Mano Watsa and his leadership team, PGC Basketball has attracted over 8,600 players and 700 coaches to their fall and summer camps. PGC Basketball spent approximately $300,000 in promotion efforts in 2017 on the

Restricted access

Yiannis Michailidis, Alexandros Tabouris and Thomas Metaxas

addition, soccer players perform more than 1000 activities, such as accelerations, decelerations, jumps, changes of direction, and others, in a match. 2 Therefore, the level of aerobic and anaerobic metabolism is crucial for the success of a player. 3 Reilly et al 4 have mentioned that explosive actions

Restricted access

Laura Misener, Kerri Bodin and Marika Kay

the legitimacy to their mission of organizational integration. Those involved at the time tell Katie that the staff support role was a step in the right direction; however, the meeting minutes that Katie consults demonstrate concerns that this individual had no decision-making autonomy or authority in

Restricted access

Jeffrey D. Simpson, Ludmila Cosio-Lima, Eric M. Scudamore, Eric K. O’Neal, Ethan M. Stewart, Brandon L. Miller, Harish Chander and Adam C. Knight

that duration should be considered when implementing long-term WVDT interventions. 1 , 3 , 5 – 9 To date, studies investigating the utility of these WV interventions have predominately focused on assessing changes in CMJ, change-of-direction (CoD), and sprint performance in elite and nonelite male

Restricted access

Alan J. Sokoloff, Timothy C. Cope, T. Richard Nichols and Arthur W. English

Differences in the directions of torque produced by motor units might be used by the nervous system to coordinate posture and movement. Here we report plantar flexion and abduction isometric torques exerted at the ankle by 158 motor units in the cat medial gastrocnemius (MG) muscle. In five cats, motor unit torque direction differed by an average of 10°. Torque direction was weakly correlated with unit contraction time in 3 of 5 experiments, with tetanic force in 3 of 5 experiments, and with conduction velocity in 1 of 5 experiments. The direction of whole muscle torque, however, was constant at all levels of MG activation produced in sural and crossed extension reflexes. Thus, although there is a range in the direction of torque produced by motor units in the cat MG, we find no evidence for the ordering of motor units according to torque direction during MG activation.