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Changes in Aerobic and Anaerobic Performance Capabilities Following Different Interval-Training Programs

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Meckel Y., Sindiani M., Ben Zaken S., Eliakim A.
Central European Journal of Sport Sciences and Medicine
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2017
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vol. 20
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issue 4
5-12
EN
The aim of the study was to compare the effect of an increasing-distance interval-training program and a decreasing-distance interval-training program, matched for total distance, on aerobic and anaerobic performance capabilities. Forty physical education students were randomly assigned to either increasing- or decreasing-distance interval-training group (ITG and DTG), and completed two similar sets of tests before and after six weeks of training. One training program consisted of 100 – 200 – 300 – 400 – 500m running intervals, and the other 500 – 400 – 300 – 200 - 100m. While both training programs led to a significant improvement in 2000m run (ES = 0.02-0.68), the improvement in the DTG was significantly greater than in the ITG (18.3 ± 3.6 vs. 12.2 ± 3.2 %, p< 0.05). In addition, while both training programs led to a significant improvement in 300m run (ES = 0.25-0.73), the improvement in the DTG was significantly greater than in the ITG (21.1 ± 1.8 vs. 15.4 ± 1.1 %, p< 0.05). The findings indicate that beyond the significant positive effects of both training programs, the DTG showed significant superiority over the ITG in improving aerobic and anaerobic performance capabilities. Athletes should acknowledge that, in spite of identical total work, interval-training program might induce different physiological impacts if order of intervals is different.
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RELATIONSHIPS BETWEEN PHYSICAL CHARACTERISTICS AND RANKING OF YOUNG TENNIS PLAYERS

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Meckel Y., Hophy A., Dunsky A., Eliakim A.
Central European Journal of Sport Sciences and Medicine
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2015
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vol. 10
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issue 2
5-12
EN
The purpose of the present study was: 1) to determine young tennis players’ fitness and anthropometric characteristics; and 2) to determine to what extent these characteristics relate to the players’ national ranking. Forty young (age 15.1 ±0.4) trained male tennis players, who were ranked from 1 to 40 in their age group in the country’s youth tennis players list, were tested for speed, speed endurance, flexibility, strength, specific agility and quickness, aerobic capacity, height, and weight. Significant correlations were found between the players’ ranking and speed (r = 0.430 – 0.475), specific agility and quickness (r = 0.626), speed endurance (r = 0.562), strength (r = –0.416), aerobic capacity (r = –0.581), flexibility (r = 0.352), height (r = –0.443), and weight (r = –0.293). Stepwise regression analysis indicated that specific agility and quickness accounted for almost 40% of the players’ ranking, while its combination with the players’ height accounted for 56%. The results imply the overall importance of anaerobic capabilities and tennis-specific movements to the young tennis players’ ranking. The results also emphasize the importance of tennis-specific tests to the young tennis players’ performance evaluation
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