An observational study with subjects in the same age group

A cross sectional study - Vitamin D levels and bone mineral density of middle-aged premenopausal female football players: A cross-sectional study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000054235

Enrollment

Registered

2024-04-23

Start date

2022-07-23

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Premenopausal woman

Interventions

None listed

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: This study is conducted in Japan. In addition, participants who fulfil the following conditions The participants who regularly play football The participants who regularly play volleyball The participants who do not regularly play sports

Exclusion criteria

Exclusion criteria: If participants are taking medicines or supplements that affect calcium or vitamin D metabolism If participants suffer from diseases such as collagen diseases or malignant tumors If participants may be pregnant

Design outcomes

Primary

Measure	Time frame
Vitamin D levels Bone mineral density	—

Countries

Japan

Contacts

Public ContactMasashi Nagao

Juntendo University Medical Technology Innovation Center

nagao@juntendo.ac.jp03-3813-3111

Outcome results