0000000001140644

AUTHOR

Krzysztof Maćkała

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Body Composition and Power Performance Improved After Weight Reduction in Male Athletes Without Hampering Hormonal Balance

2014

The aim of this study was to investigate the effects of a 4-week weight reduction period with high protein and reduced carbohydrate intake on body composition, explosive power, speed, serum hormones, and acid-base balance in male track and field jumpers and sprinters. Eight participants were assigned to a high weight reduction group (HWR; energy restriction 750 kcal·d) and 7 to a low weight reduction group (LWR; energy restriction 300 kcal·d). Energy and carbohydrate intake decreased significantly (p ≤ 0.05) only in HWR by 740 ± 330 kcal·d and 130 ± 29 g·d, respectively. Furthermore, total body mass and fat mass decreased (p ≤ 0.05) only in HWR by 2.2 ± 1.0 kg and 1.7 ± 1.6 kg, respectively…

AdultMalemedicine.medical_specialtyDiet ReducingHydrocortisoneGlobulinPhysical Therapy Sports Therapy and RehabilitationDiet Carbohydrate-RestrictedSex hormone-binding globulinWeight lossSex Hormone-Binding GlobulinInternal medicineWeight LossmedicineHumansTestosteroneOrthopedics and Sports Medicineta315Balance (ability)HydrocortisoneAcid-Base EquilibriumbiologyChemistryTrack and FieldGeneral MedicineCarbohydrateexplosive powerEndocrinologySprintBody Compositionbiology.proteinDietary Proteinsmedicine.symptomproteinBiomarkersHormonemedicine.drugJournal of Strength and Conditioning Research
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