Effects of endurance training on ectopic fat accumulation and serum vitamin D concentration

Effects of endurance training on ectopic fat accumulation and serum vitamin D concentration - Effects of endurance training on serum vitamin D concentration

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000019117

Enrollment

Registered

2015-09-25

Start date

2014-10-01

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

Healthy adults

Interventions

One group undertook a progressive aerobic exercise program for 5 weeks. Training comprised three cycle ergometer sessions (30-45 minutes each) per week, and the intensity gradually increased from 60 t

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Healthy elderly subjects over 60 years old

Exclusion criteria

Exclusion criteria: 1.Use of tanning booths or other artificial UV light exposure 2.History or presence of diabetes, heart, liver and kidney diseases, and stoke, eating disorders, gastrointestinal disorders 3.Taking vitamin D supplement or 1,25 vitamin D 4.Physician has placed a restriction on physical exercise

Design outcomes

Primary

Measure	Time frame
Effects of 5-week endurance exercise on hepatic fat content, circulating vitamin D concentration, and glucose and lipid profiles	—

Secondary

Measure	Time frame
Effects of 5-week endurance exercise on maximal oxygen uptake and obesity-related indicators	—

Countries

Japan

Contacts

Public ContactSun Xiaomin

Waseda University Graduate School of Sport Sciences

gzhtxiaomin@ruri.waseda.jp+81-4-2947-6833

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026