0000000000368473

AUTHOR

J. S. Volek

showing 3 related works from this author

Dietary Intake, Serum Hormones, Muscle Mass and Strength During Strength Training in 49 - 73-Year-Old Men

2007

Effects of dietary intake on serum hormones, muscle cross-sectional area (CSA) and strength during strength training were studied in two groups of men: 1) strength training + nutritional counseling (n = 22, 59.1 +/- 6.1 yrs), and 2) strength training (n = 23, 58.5 +/- 7.1 yrs). Both groups performed strength training twice a week for 21 weeks. Counseling increased carbohydrate (p < 0.01) and fiber intake (p < 0.001) and polyunsaturated/saturated fat-ratio (p < 0.05) and decreased fat intake (p < 0.01). Muscle strength and CSA increased by 16 - 20 % and by 5.4 - 5.9 % in both groups (p < 0.001). Changes in protein content of diet correlated with the changes in the acute postexercise concentr…

CounselingMalemedicine.medical_specialtyHydrocortisoneStrength trainingmedicine.drug_classPhysical Therapy Sports Therapy and RehabilitationPhysical exerciseMuscle massBasal (phylogenetics)Sex Hormone-Binding GlobulinInternal medicineHumansMedicineTestosteroneOrthopedics and Sports MedicineMuscle StrengthMuscle SkeletalTestosteroneAgedAnalysis of VariancePhysical Education and Trainingbusiness.industryCase-control studyMiddle AgedAndrogenDietEndocrinologyCase-Control StudiesAnalysis of varianceEnergy IntakebusinessInternational Journal of Sports Medicine
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Relationship between diet and serum anabolic hormone responses to heavy-resistance exercise in men.

2004

Relationship between dietary intake and serum anabolic hormone concentrations of testosterone (T), free testosterone (FT), and growth hormone were examined at rest as well as after the heavy-resistance exercise (HRE) in 8 strength athletes (SA) and 10 physically active non-athletes (NA). In the first part of the study serum basal anabolic hormone concentrations and dietary intake were examined in the total group of subjects. In the second part of the study a subgroup of 5 SA and 5 NA performed the high volume and high intensity HRE. Dietary intake was registered by dietary diaries for 4 days preceding the loading day. Significant correlations were observed between serum basal T and fat (E%:…

AdultMalemedicine.medical_specialtyAnabolismWeight LiftingStrength trainingPhysical Therapy Sports Therapy and RehabilitationPhysical exerciseFollicle-stimulating hormoneBasal (phylogenetics)Internal medicinemedicineHumansOrthopedics and Sports MedicineTestosteroneTestosteronebiologybusiness.industryHuman Growth HormoneDietary FatsDiet RecordsDietEndocrinologybiology.proteinProtein GDietary ProteinsbusinessHormoneInternational journal of sports medicine
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Effects of Strength Training and Reduced Training on Functional Performance and Metabolic Health Indicators in Middle-Aged Men

2007

Changes in muscular fitness and metabolic health indicators were examined in 22 men (57.9 +/- 6.6 years, BMI 24.5 +/- 2.6 kg/m (2)) and 21 control men (58.2 +/- 6.1 years, BMI 25.4 +/- 2.8 kg/m (2)) during two consecutive 21-week periods: 1) whole body progressive strength training (ST: twice a week), and 2) continued reduced training (CRT: 3 ST sessions/2 weeks, n = 17 + 17). After the 21-week ST period, maximal strength of leg extensors increased in the ST group by 19.6 +/- 7.6 % vs. 2.8 +/- 4.4 % (p < 0.001) and also 10-m walking time and 10-step stair-climbing time shortened by - 17.2 +/- 7.6 % vs. 4.1 +/- 3.9 % (p < 0.01) and by - 8.2 +/- 6.8 % vs. - 3.0 +/- 6.8 % (p < 0.05) compared t…

Blood GlucoseMalemedicine.medical_specialtyWeight LiftingStrength trainingHealth StatusLipoproteinsPhysical fitnessDiastoleBlood sugarHemodynamicsBlood PressurePhysical Therapy Sports Therapy and RehabilitationAnimal scienceHumansMedicineOrthopedics and Sports MedicineFinlandMetabolic healthbusiness.industryFeeding BehaviorMiddle AgedSurgeryBlood pressurePhysical FitnessMuscle strengthbusinessInternational Journal of Sports Medicine
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