Physical fitness of secondary school adolescents in relation to the body weight and the body composition: classification according to World Health Organization. Part I

Chwałczyńska, Agnieszka; Jędrzejewski, Grzegorz; Socha, Małgorzata; Jonak, Wiesława; Sobiech, Krzysztof A.

doi:10.23736/s0022-4707.16.05664-4

Cited by 9 publications

(5 citation statements)

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“…Also, boys performed better than girls in the SBJ and

physical fitness components. The findings are consistent with research published on adolescents, where boys outperformed girls in both lower limb muscular strength (jumping) and cardiorespiratory endurance (

) [ 49 ]. The participants in the study are not athletes, and therefore, the observed significantly better performance in SBJ and

physical fitness tests by boys than girls may partly be explained by the dominant culture of regular engagement in physical activity and muscular development factors among boys.…”

Section: Discussionsupporting

confidence: 91%

“…However, when analysis was performed by sex, BMI was not significantly correlated with SBJ in boys. The observed non-significant correlation coefficient may be attributed to, firstly, the similar percentage (6.7%) of underweight and overweight (5.3%) among boys, as both underweight and overweight individuals are unable to perform physical fitness tests that require a high energy flux over a short period, such as SBJ that require force to move their bodies forward [ 49 , 50 ], and secondly, to the high SBJ mean value (185.84 ± 25.62 cm). A sedentary lifestyle leads to excessive body weight or body fat increases, which consequently increases the body’s load, causing higher insulin secretion, and an even higher level of sedentary behaviour [ 51 ].…”

Section: Discussionmentioning

confidence: 99%

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Relationships between Iron Status and Selected Physical Fitness Components of South African Adolescents: The PAHL-Study

Monyeki,

Veldsman,

Coetzee

et al. 2024

Children

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Poor iron status is detrimental to physical and cognitive performance in adolescents. Due to the limited studies investigating the association between iron status and physical fitness components in adolescents from low- and middle-income countries, we aimed to determine the association of iron status with selected physical fitness components in South African adolescents. A cross-sectional study design, including 178 adolescents (102 girls and 76 boys) from the Physical Activity and Health Longitudinal Study (PAHLS), was followed. Height and weight were measured to calculate the body mass index (BMI). Subsequently, WHO BMI-for-age-specific categorised body fatness. Cardiorespiratory fitness was determined with a 20-m shuttle run test (V˙O2max), and lower-body explosive power by the standing broad jump (SBJ). Fasting haemoglobin (Hb) and ferritin were analysed from blood samples. Correlation analyses determine the association between iron status, explosive power and cardiorespiratory fitness. Of the 178 participants, 18.5% (n = 33) had low Hb, and 14% (n = 25) iron deficiency without anaemia. Significant positive correlations were found between the selected physical fitness components, ferritin, and Hb. In boys, a positive association was found between Hb and SBJ (r = 0.30, p = 0.006), whilst in girls, positive associations were found between ferritin (r = 0.25, p = 0.04) and SBJ, and Hb with both SBJ (r = 0.21, p = 0.03) and V˙O2max (r = 0.32, p = 0.001). Hb concentration remained associated with V˙O2max and SBJ in girls after adjustment for age, whilst in boys, Hb concentration was associated with SBJ. Higher iron status in South African adolescents is associated with higher lower-limb explosive power and cardiorespiratory fitness. We suggest monitoring of haematological parameters, and interventions to improve the iron status of South African adolescents.

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“…Also, boys performed better than girls in the SBJ and

) [ 49 ]. The participants in the study are not athletes, and therefore, the observed significantly better performance in SBJ and

physical fitness tests by boys than girls may partly be explained by the dominant culture of regular engagement in physical activity and muscular development factors among boys.…”

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Relationships between Iron Status and Selected Physical Fitness Components of South African Adolescents: The PAHL-Study

Monyeki,

Veldsman,

Coetzee

et al. 2024

Children

View full text Add to dashboard Cite

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“…Furthermore, it can also be used to make comparisons with the person's physical fitness at different times of life and with the achievements of other people [32,33]. The index comprises 6 trials: speed test, jumping ability test, arm strength test, flexibility test, endurance test and abdominal muscle test [34,35]. A detailed description of all trials is included in Appendix A.…”

Section: Physical Fitness Measuresmentioning

confidence: 99%

Body Composition and Physical Fitness: Does This Relationship Change in 4 Years in Young Adults?

Kochman

Kasperek

Guzik

et al. 2022

IJERPH

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(1) Background: There are few studies investigating the relationship between physical fitness and body composition in young adults and, to our knowledge, there are no such reports focusing specifically on physiotherapy students. This observational study aimed to assess the relationship between physical fitness and selected anthropometric measurements as well as body composition in Polish students in the first year and in the final year of a university course in physiotherapy. (2) Methods: A group of 100 randomly selected individuals were recruited among first- and fifth-year students of physiotherapy (50% women), who were assigned to two groups: A (aged 19 years) and B (aged 23 years). Body composition was assessed using a Tanita TBF-300 Analyzer, and physical fitness was measured using Zuchora’s Physical Fitness Index. (3) Results: A higher level of general fitness was identified in students from Group B (p = 0.0261), and lower values of the fat mass index was found in Group A (p = 0.0441). Group A was found with correlations between general level of physical fitness and the following indexes: fat% (R = −0.4; p = 0.0018), FM (R = −0.3; p = 0.0310), FFM (R = 0.3; p = 0.0229) and TBW (R = 0.4; p = 0.0024), whereas Group B was found with correlations between general physical fitness and BMI (R = 0.3; p = 0.0308) as well as FM index (R = 0.3; p = 0.0431). (4) Conclusions: The findings show significant differences between the groups in physical fitness, body composition and selected anthropometric measurements. Older students presented higher level of general fitness, whereas younger students were found with a lower mean value of fat index.

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“…Maximum oxygen uptake (VO2max) was estimated from the results of the Maximal Multistage 20-m Shuttle Run Test (Leger et al, 1988). Abdominal muscle strength endurance (ASE) was assessed based on the results (s) of a horizontal scissors test (Chwałczyńska et al, 2017) performed by the participants in a supine position with the lower extremities elevated at an angle of 30 degrees. Explosive strength was determined from the horizontal jump test (HJ).…”

Section: Design and Proceduresmentioning

confidence: 99%

Associations between Selected Biological Features and Absolute and Relative Swimming Performance of Prepubescent Boys over a 3‐Year Swimming Training Program: A Longitudinal Study

Kuberski¹,

Polak²,

Szołtys³

et al. 2022

Journal of Human Kinetics

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The study aimed to investigate the effect of 3-year swimming training on selected biological variables in prepubescent male swimmers and to determine the best predictors of absolute (VSa) and relative (VSr) swimming velocity for 50 m and 400 m front crawl. Twenty-one 10-year old boys subjected to endurance swimming training (4 x 70 min per week) and 18 boys consisting a control group were assessed semi-annually for basic anthropometric and respiratory characteristics, breath-hold time (BHT), VO2max, leg explosiveness (HJ), and abdominal strength endurance (ASE). After three years of training, BHT (p < 0.001), VO2max (p < 0.01), HJ (p < 0.01) and ASE (p < 0.01) were greater in the swimmers than in the controls. VSa and VSr expressed as a percentage of baseline velocity increased more for the 50 m than for the 400 m distance (p < 0.001 and p < 0.01, respectively). The 50 m VSa and VSr positively correlated with those obtained for the distance of 400 m (in both cases p < 0.001). Baseline VSa was negatively correlated with the increase in absolute swimming velocity for both distances (50 m: r = -0.684, p < 0.001 and 400 m: r = -0.673, p < 0.001). The best predictors of VSa for 50 m and 400 m front crawl were HJ (r2 = 0.388; p < 0.001) and VO2max (r2 = 0.333; p < 0.001), respectively. The key predictors of VSr for both distances were age (50 m: r2 = 0.340, p < 0.001 and 400 m: r2 = 0.207, p < 0.001) and, after excluding it from analysis, HJ (50 m: r2 = 0.176, p < 0.001 and 400 m: r2 = 0.104, p < 0.001). These results suggest that regardless of prepubescent boys’ initial abilities and exercise capacity, improvement in their swimming performance mainly depends on increases in power and neuromuscular coordination.

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Physical fitness of secondary school adolescents in relation to the body weight and the body composition: classification according to World Health Organization. Part I

Cited by 9 publications

References 0 publications

Relationships between Iron Status and Selected Physical Fitness Components of South African Adolescents: The PAHL-Study

Relationships between Iron Status and Selected Physical Fitness Components of South African Adolescents: The PAHL-Study

Body Composition and Physical Fitness: Does This Relationship Change in 4 Years in Young Adults?

Associations between Selected Biological Features and Absolute and Relative Swimming Performance of Prepubescent Boys over a 3‐Year Swimming Training Program: A Longitudinal Study

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