In many studies of human movement, calculations of mechanical energy and physiological energy costs of exercise (Aleshinsky, 1986; Bhambhani & Singh, 1985; Cavagna, Thys & Zamboni, 1976; Robertson & Winter, 1980; Pierrynowski, Winter & Norman, 1980; Saito, Ohkuwa, Ikegami & Miyamura, 1983; Sakurai & Miyashita, 1985; Williams & Cavanagh, 1983; Williams, 1985; Winter, Quanbury & Reimer, 1978; Zur...

Spatio-temporal relations among movement events extracted from temporally varying trajectory data can provide useful information about the evolution of individual or collective movers, as well as their interactions with their spatial and temporal contexts. However, the pure statistical tools commonly used by analysts pose many difficulties, due to the large number of attributes embedded in mult...

in regional level, iran-iraq war had a great impact on neighboring states' foreign policy approach, especially on gulf arab states. these states adopted a new approach in their relations with iran and iraq considering the ideological and revolutionary threat of iran. after iraqi invasion against iran, gulf arab states affected by nationalism movement, sported iraq extensively. their policy...

Purpose. The authors tried to point out the crucial factors determining swimming results in a 2000m front crawl race. Basic procedures. Two groups of subjects: G1 (16.8 ± 0.77 years) and G2 (14.7 ± 0.49 years) of 15 swimmers each took part in two incremental tests for assessing aerobic endurance of arms in arm cranking (V̇O 2max AR) and of legs in cycling (V̇O 2max LG). The applied procedure made...

Purpose. The effects of practice were analyzed in the control of fast and accurate spatially constrained movements. Methods. Twenty men (20–26 years old) evenly divided into an experimental and control group were analyzed in three time periods: pre-test, post-test, and retention. Discrete Aiming Task ver. 2.0 software simulated Fitts’ task (1954) and provided kinematic analysis of mouse cursor ...

Purpose. The aim of the study was to evaluate and compare the physical activity patterns of preschoolers aged 6–7 years. Methods. A sample of 221 preschool children (116 boys and 105 girls) aged 6 (5.92 ± 0.30) and 7 (6.91 ± 0.25) years was recruited. Physical activity was assessed over 7 consecutive days by using pedometers to determine step counts (steps/day). Accrued anthropometric data incl...