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Evaluation of Barefoot Running in Preadolescent Athletes

100%

Pilianidis T., Mantzouranis N., Siachos N.

Human Movement

2014

vol. 15

issue 4

238-242

Purpose. The literature shows few studies on shod and unshod running performance in athletes, with most limited to laboratory settings. The aim of this study was to evaluate preadolescent 1000 m running performance when barefoot and in running spikes or training shoes. Methods. A sample of 22 boys and 21 girls aged 10.6 ± 1.1 years was recruited. Anthropometric data and VO2max were recorded when completing the three study protocols in a counter balanced design. Student’s t tests were applied to compare mean 1000 m finish times while ANOVA was used to evaluate sex differences between the protocols. Pearson's correlation analysis measured interactions between the finish times, anthropometric variables, and VO2max. Results. Running performance with spikes (4.58 min) was significantly better than with training shoes (5.21 min) and barefoot (5.18 min). Male 1000 m times were overall better than the females. A substantial effect of VO2max and body fat on performance was found in all protocols. Conclusions. Preadolescent endurance performance was not significantly different between training shoes and barefoot; this may serve as an incentive for future research on the training of developmental age runners.

Position-specific Physical Performance of Professional Players during Full-Season Matches in a Greek Superleague Elite Team

88%

Mitrotasios M., Ispyrlidis I., Mantzouranis N., Vassiliades E., Armatas V.

vol. 37

13-21

The aim of the present study was to examine how various playing positions and opponent team ranking affect the covered distances and the acceleration and decelerations profile of a team during 2018-19 Greek SuperLeague. StatSport GPS system recorded in match-play real-time both the players’ covered distances (m) and the number of acceleration/deceleration runs (n) in zones from 3 m/s2 to 10 m/s2. The descriptive statistics showed that the players’ mean covered distances were 10289 m per match. The MANOVA revealed significant differences of the players’ covered distances in all intensity zones in relation to their playing positions (F(12, 513.567)=41.862; p=0.000) and the opponent team ranking (F(3,189)=3.687; p=0.013). Furthermore, no significant interactions were observed between the playing positions and the opponent team ranking (F(12, 500.339)=1.149; p=0.318). Moreover, no significant differences were recorded regarding the opponent team ranking with the amount of accelerations (F(1,189)=0.501; p=0.480) and decelerations (F(1,189)=1.342; p=0.248). Summarizing, the current study showed the high-demanding competitive performance of midfielders, full backs and forwards regardless the standing of the opponent teams. Hence, the team’s training must include special stimuli of aerobic and high-intensity workouts according to the players’ playing positions in the match.

The Effects of an Alternative Training Method on Physical and Technical Abilities of Adolescent Soccer Players: A Pilot Study

76%

Bogiatzidis E., Ispyrlidis I., Gourgoulis V., Bogiatzidou A., Chatzinikolaou A., Mantzouranis N., Smilios I.

vol. 37

45-56

This study examined the effects of an alternative strength training method during soccer training on the development of physical and technical abilities of youth soccer players. 17 soccer players (age: 15±0.5 years) were divided in a control group (CG) and an experimental group (EG). The players of the EG wore a "weight shorts", with 300 gr of additional weight on each thigh, while they participated into 3 regular soccer training sessions per week, for 12 weeks. The CG followed the same training program without wearing the “weighted shorts”. Before and after 12 weeks of training, anthropometric characteristics, 10- and 30- m speed, the Arrowhead change-of-direction test, the Illinois agility test with ball, the countermovement jump, and the 5-repetition maximum (5RM) load at the split squat, leg extension and leg curl were measured. The EG improved significantly (p< 0.05) more in comparison with the CG in countermovement jump, leg extension and split squat (left leg) 5RM load. The addition of weights on the thighs using special shorts during soccer training sessions leads to increased jumping ability and lower limbs maximal strength in youth soccer players.

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2 Central European Journal of Sport Sciences and Medicine

1 Human Movement

2 2022

1 2014

3 Mantzouranis N.

2 Ispyrlidis I.

1 Armatas V.

1 Bogiatzidis E.

1 Bogiatzidou A.

1 Chatzinikolaou A.

1 Gourgoulis V.

1 Mitrotasios M.

1 Pilianidis T.

1 Siachos N.

1 Smilios I.

1 Vassiliades E.

Search results

Evaluation of Barefoot Running in Preadolescent Athletes

Position-specific Physical Performance of Professional Players during Full-Season Matches in a Greek Superleague Elite Team

The Effects of an Alternative Training Method on Physical and Technical Abilities of Adolescent Soccer Players: A Pilot Study