Male Runners With Lower Energy Availability Have Impaired Skeletal Integrity Compared to Nonathletes.
J Clin Endocrinol Metab
; 108(10): e1063-e1073, 2023 09 18.
Article
en En
| MEDLINE
| ID: mdl-37079740
ABSTRACT
CONTEXT Female athletes, particularly runners, with insufficient caloric intake for their energy expenditure [low energy availability (EA) or relative energy deficiency] are at risk for impaired skeletal integrity. Data are lacking in male runners. OBJECTIVE:
To determine whether male runners at risk for energy deficit have impaired bone mineral density (BMD), microarchitecture, and estimated strength.DESIGN:
Cross-sectional.SETTING:
Clinical research center.PARTICIPANTS:
39 men (20 runners, 19 controls), ages 16-30 years. MAIN OUTCOMEMEASURES:
Areal BMD (dual-energy x-ray absorptiometry); tibia and radius volumetric BMD and microarchitecture (high-resolution peripheral quantitative computed tomography); failure load (microfinite element analysis); serum testosterone, estradiol, leptin; energy availability.RESULTS:
Mean age (24.5 ± 3.8 y), lean mass, testosterone, and estradiol levels were similar; body mass index, percent fat mass, leptin, and lumbar spine BMD Z-score (-1.4 ± 0.8 vs -0.8 ± 0.8) lower (P < .05); and calcium intake and running mileage higher (P ≤ .01) in runners vs controls. Runners with EACONCLUSIONS:
Despite weight-bearing activity, skeletal integrity is impaired in male runners with lower caloric intake relative to exercise energy expenditure, which may increase bone stress injury risk. Lower estradiol and lean mass are associated with lower tibial strength in runners.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Calcio
/
Leptina
Tipo de estudio:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Clin Endocrinol Metab
Año:
2023
Tipo del documento:
Article
País de afiliación:
Estados Unidos