Comparison of plasma leptin and zinc levels in elite athletes and sedentary people

Arıkan, Şükran; Akkuş, Hasan; Halifeoğlu, İhsan; Baltacı, Abdülkerim Kasım

doi:10.1002/cbf.1480

Cited by 21 publications

(19 citation statements)

References 29 publications

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“…Other studies demonstrated that levels of serum leptin hormone were higher in healthy males (6.32±3.95 ng/ml) than in football players (2.56±1.93 ng/ml) [41]. Similarly, Arikan et al [16] showed the least concentration of leptin in the resting state in elite weight-lifters (2.74±0.4 ng/ml) compared to sedentary people (6.17±0.9 ng/ml).…”

Section: Discussionmentioning

confidence: 92%

“…Studies suggest a reduction in the plasmatic concentration of leptin as an effect of chronic physical exercise [14][15][16], mainly when associated with the reduction in adipose tissue mass [17]. When it comes to IL-6, a significant increase in the plasmatic concentration in response to acute physical exercise has been observed, stimulating lypolisis and also participating in the regulation of lipid metabolism [18,19].…”

mentioning

confidence: 96%

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Effect of Training Judo in the Competition Period on the Plasmatic Levels of Leptin and Pro-inflammatory Cytokines in High-Performance Male Athletes

Oliveira

Procida

Borges-Silva

2009

Biol Trace Elem Res

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The purpose this study was to evaluate the effect of training judo in the competition period on the plasmatic levels of bioactive molecules in high-performance male athletes. The subjects were divided into two groups, a trained group with 11 judokas and a nontrained group also with 11 subjects. Blood samples obtained 60 h after training to measure plasma tumor necrosis factor (TNF-alpha), interleukin-6 (IL-6), monocyte chemotactic protein 1 (MCP-1), and leptin levels. The trained group presented a significant reduction in the percentage of fat and fat mass and an increase in the lumbar and lower limbs traction forces and the maximum VO(2) when compared to the nontrained group. There was no significant difference in the serum concentrations of TNF-alpha and IL-6 between the two groups. The trained group presented a lower concentration of leptin, both as absolute values as well as relative to the percentage of fat, and a higher concentration of MCP-1, in relation to the nontrained group. Our results suggest an adaptation in the capacity of synthesizing and secreting leptin in response to chronic stress in judo, what suggests a neuro-hormonal adjustment that guarantees the efficiency of metabolism. The changes of MCP-1 indicated a possible inflammatory state.

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Section: Discussionmentioning

confidence: 92%

mentioning

confidence: 96%

Effect of Training Judo in the Competition Period on the Plasmatic Levels of Leptin and Pro-inflammatory Cytokines in High-Performance Male Athletes

Oliveira

Procida

Borges-Silva

2009

Biol Trace Elem Res

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“…Arikan et al 45 examined the relation between leptin and zinc concentrations of athletes and sedentary people. They showed that leptin and zinc levels in the control group were significantly higher than those in the athletes and that leptin levels decreased significantly in parallel with zinc levels.…”

Section: Resultsmentioning

confidence: 99%

The response of serum leptin, cortisol and zinc concentrations to concurrent training

Rosa¹,

Dantas²,

Mello³

2011

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ObjectIve: to investigate the effects of concurrent training (ct) on serum leptin, cortisol and zinc concentrations in physically active adults. DesIGN: ten subjects aged (27.1±4.8 years, bMI 25.49 ± 2.65) were recruited to participate in three sessions: control session (cs), concurrent training 1 (ct1) and concurrent training 2 (ct2) sessions with five days of resting between them. In each session blood samples for leptin, cortisol and zinc determination were collected. ct1 session included indoor cycling class followed by strength training. ct2 session included strength training, followed by indoor cycling class. In cs there were no exercises. the shapiro-Wilk test, repeated ANOvA test and tukey Post-Hoc test were used. resULts: there was a reduction in leptin levels after CT1 (Δ% = -16.04; p = 0.05) and CT2 (Δ% = -8.54; p = 0.02). Cortisol also showed a reduction after CT1 (Δ% = -26.32; p = 0.02) and CT2 (Δ% = -33.57; p = 0.05), whereas zinc did not show any significant alterations after any of the training sessions. there was also significant difference for the leptin and cortisol values between ct1 and ct2. cONcLUsIONs: ct promoted reduction in serum leptin and cortisol levels independently of the training order, while no significant changes in zinc concentrations were observed.

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“…In conditions of low zinc availability, the body spares endogenous zinc through intestine wall. Hence low zinc levels in hypozincemic athletes could be due to regular training and not diet deficit (Arikan et al, 2008). Although the maturation involves all organs and systems, it is not uncommon that a single indicator is adopted as representative of this process (Beunen et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Biological Maturation Assessment Methods in Adolescent Soccer Players Considering Zinc Status

et al. 2017

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Morphol., 35(4):1607Morphol., 35(4): -1613Morphol., 35(4): , 2017. SUMMARY:The purpose of this study was to compare different methods of maturity evaluation and their relation with performance-related physical and anthropometric variables in young soccer players, with different plasma zinc status. A total of 53 healthy male young soccer players (age: 13±1 years; body mass: 48±10 kg; stature: 160±10 cm) participated in this study. Variables from physical fitness (stature, ST; fat-free mass, FFM; handgrip strength in the dominant hand, DHS), testosterone and zinc plasma concentration were measured. Biological maturity was evaluated by sexual maturity (development of: pubic hair, PH; genitals, GD; axillary hair; AH), bone maturity (TW3 method; BA), and testosterone plasma concentration methods. We observed that: (i) the frequency of hypozincemics and normozincemics children stratified by BA-CA, PH and GD were similar in each category; (ii) the BA allowed the identification of differences between the three categories, in at least two performance-related variables (FFM and DHS, p<0.0001); (iii) the AH method was able to discriminate only for DHS (p<0.0001); and (iv) the testosterone method was not able to identify differences between the four maturation categories with regard to ST, FFM, and DHS. Results suggested that Zinc deficiency did not influence the results obtained for the maturation categories defined by the different assessment methods. The assessment of biological maturation by BA seems to be the most effective for the stratification of performance-related and anthropometric variables in young soccer players. Nevertheless, the AH method should also be considered as a fair option to be used in field studies and practice.

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Comparison of plasma leptin and zinc levels in elite athletes and sedentary people

Cited by 21 publications

References 29 publications

Effect of Training Judo in the Competition Period on the Plasmatic Levels of Leptin and Pro-inflammatory Cytokines in High-Performance Male Athletes

Effect of Training Judo in the Competition Period on the Plasmatic Levels of Leptin and Pro-inflammatory Cytokines in High-Performance Male Athletes

The response of serum leptin, cortisol and zinc concentrations to concurrent training

Biological Maturation Assessment Methods in Adolescent Soccer Players Considering Zinc Status

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