Ageing and free-living daily physical activity effects on salivary beta-defensin 2 secretion

Kazuhiro Shimizu, Yukichi Hanaoka, Takao Akama, Ichiro Kono

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study examined ageing and free-living daily physical activity effects on salivary human beta-defensin 2 (hBD2). A total of 168 healthy elderly and 26 healthy young volunteers underwent saliva sampling. Free-living step count, energy expenditure and activity durations at specific intensity levels (inactive, light, moderate and vigorous) were evaluated. The results show significantly lower salivary hBD2 secretion rates for elderly than for young participants (P −1 in Q4. In elderly participants, significant differences were found in the mean step count, energy expenditure and activity duration with increasing pedometer-determined activity quartiles. hBD2 secretion rates were significantly higher for Q2, Q3 and Q4 than for Q1 (P −1.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalJournal of Sports Sciences
DOIs
Publication statusAccepted/In press - 2016 May 30

Fingerprint

beta-Defensins
Exercise
Energy Metabolism
Saliva
Healthy Volunteers
Light
human DEFB4A protein

Keywords

  • ageing
  • Antimicrobial peptide
  • defensin
  • oral immune function
  • physical activity

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Ageing and free-living daily physical activity effects on salivary beta-defensin 2 secretion. / Shimizu, Kazuhiro; Hanaoka, Yukichi; Akama, Takao; Kono, Ichiro.

In: Journal of Sports Sciences, 30.05.2016, p. 1-7.

Research output: Contribution to journalArticle

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