Study on creating classes to promote the acquisition of Break-fall skills in Judo

Study on creating classes to promote the acquisition of Break-fall skills in Judo - Evaluation of the Break-fall skills acquisition in Judo

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000047586

Enrollment

Registered

2022-04-25

Start date

2018-01-11

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

Traumatic Brain Injury

Interventions

Regular judo classes (60 minutes once a week) and two types of cervical flexor muscle group training (concentric contraction and eccentric contraction) 20 times each (once a week) for 12 weeks. Only r

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1 Students enrolled in university general physical education classes (Practical judo classes). 2 Written informed consent after explanation of the study procedures and risks.

Exclusion criteria

Exclusion criteria: 1 Person with a history of head and neck position-related illnesses.

Design outcomes

Primary

Measure	Time frame
Evaluation of judo break-fall skill proficiency before and after (12 weeks) the intervention of the head injury prevention program.	—

Secondary

Measure	Time frame
Neck flexor strength, Sternocleidomastoid muscle discharge, Head acceleration	—

Countries

Japan

Contacts

Public ContactHaruo Murayama

Dokkyo Medical University Department of Fundamental Education

hmurayam@dokkyomed.ac.jp0282-87-2119

Outcome results

None listed

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