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THE EFFECTS OF A 10-WEEK STEP AEROBICS TRAINING ON VO 2 max, ISOMETRIC STRENGTH AND BODY COMPOSITION OF YOUNG WOMEN

100%

Drobnik-Kozakiewicz I., Sawczyn M., Zarębska A., Kwitniewska A., Szumilewicz A.

issue 4

3-9

Health status is partly determined by physical fitness level. Physical fitness can be developed through different physical activities under condition that regularity and intensity are maintained on optimal level. One of such physical activities is step aerobics - one of the most popular collective fitness forms offered in fitness clubs. The objective of this study was to evaluate the influence of step aerobics training on VO2max, isometric strength and body composition of young female students. Female students aged 19-21 of University of Physical Education and Sport in Gdańsk were subjects in this study. VO2max, isometric strength of elbow flexors and knee extensors, as well as body composition, were measured week before and week after a ten-week step aerobics training. For statistical analysis, basic descriptive statistics and student’s t-test were applied for dependent variables. After ten weeks of training there were no statistically significant changes in body composition, probably due to lack of calorie intake control. Significant changes were observed in isometric strength of elbow flexors but no changes in isometric strength of knee extensors. There was a compensation in isometric strength noted between left and right leg after ten weeks of training, where left leg was weaker than the right leg before training. Significant changes were noted in VO2max values, which increased from 42.04 ml/kg/min-1 to 45.71 ml/kg/min-1. Step aerobics training can sufficiently increase VO2max in young females and has a potential in developing strength of upper extremities. When body composition is the main purpose, diet should be taken under consideration.

Strength and aerobic training in overweight females in Gdansk, Poland

73%

Sawczyn S., Mishchenko V., Moska W., Sawczyn M., Jagiełło M., Kuehne T., Kostrzewa-Nowak D., Nowak R., Cięszczyk P.

Open Medicine

2014

vol. 10

issue 1

W e compared the effects of 16-week-training on rest metabolic rate, aerobic power, and body fat, and the post-exercise effects upon rest oxygen uptake and respiratory exchange ratio in overweight middle-aged females. Twenty nine overweight women (BMI 29.9 ± 1.2 kg*m-²) participated in training (3 days a week). The subjects were divided onto groups of aerobic (AT) and strength (ST) training. The results showed that the total body mass decrease and VO2 max increase did not differ in both groups. Decrease in waist circumference after 16 weeks was higher in the ST group. In the ST group fat-free mass increased during the first 8 weeks. Rest metabolic rate was increased significantly at 16th week compared to initial value in ST group only. Significant increase in post-exercise resting VO2 and respiratory exchange ratio at 12 and 36 h was observed after the strength training session only. Increase in rest metabolic rate and post-exercise rest energy expenditure occurred after strength training but not after aerobic training despite the similar increase in aerobic power. The effect of 8-16 weeks of strength training on body mass decrease was higher in comparison to aerobic training.

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1 Central European Journal of Sport Sciences and Medicine

1 Open Medicine

1 2015

1 2013

2 Sawczyn M.

1 Cięszczyk P.

1 Drobnik-Kozakiewicz I.

1 Jagiełło M.

1 Kostrzewa-Nowak D.

1 Kuehne T.

1 Kwitniewska A.

1 Mishchenko V.

1 Moska W.

1 Nowak R.

1 Sawczyn S.

1 Szumilewicz A.

1 Zarębska A.

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THE EFFECTS OF A 10-WEEK STEP AEROBICS TRAINING ON VO 2 max, ISOMETRIC STRENGTH AND BODY COMPOSITION OF YOUNG WOMEN

Strength and aerobic training in overweight females in Gdansk, Poland