title: [Effect of hydrogymnastics physical exercise on serum level of immunoglobulin A in elderly women].
abstract: BACKGROUND
  Decreases in function of the immune system with age contribute to the increase the risk of infectious diseases especially the upper respiratory tract. On the other hand, physical activity has been widely recommended for health. However, more studies are needed to support the benefit effect of exercise on immune system in elderly.
  
  
  OBJECTIVE
  To evaluate the effect of the hydrogymnastics on the serum level of immunoglobulin A (IgA) in elderly women.
  
  
  METHODS
  Twenty-six participants were randomly assigned to an experimental (n: 16) or a control group (n: 10). IgA concentrations were determined by nephelometry (BN2 Analyzer, Dade Behring). The hydrogymnastics training protocol was performed 5 times a week during 12 weeks. The intensity of the aerobic exercise was 50-60% of the maximum heart rate monitored by telemetry (Polar-FT7).
  
  
  RESULTS
  No significant differences (p: 0.797) resulted by ANOVA on serum IgA levels; the percentage of change in experimental group was Δ% = -6.7 mg/dL compared to the control group, Δ%= -7.4 mg/dL.
  
  
  CONCLUSIONS
  After three months of hydrogymnastics the IgA level did not show significant change on elderly women; However, positive improvement in percentage of change Δ% was found.
authors.forename: Javier
authors.initials: J
authors.lastname: Hall-López
authors.forename: Paulina
authors.initials: P
authors.lastname: Ochoa-Martínez
authors.forename: Ana M Miranda Botelho
authors.initials: AM
authors.lastname: Teixeira
authors.forename: José A
authors.initials: JA
authors.lastname: Moncada-Jiménez
authors.forename: Estelo Martin
authors.initials: EM
authors.lastname: Dantas
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000097:blood*; D008875:Middle Aged; D009391:Nephelometry and Turbidimetry; D064797:Physical Conditioning, Human / Q000379:methods; D013550:Swimming
chemical_list: D007070:Immunoglobulin A