Effect of feedback service form and ball quality using video and wearable device on the accuracy of the second service in high school tennis players

Effect of feedback service form and ball quality using video and wearable device on the accuracy of the second service in high school tennis players - Effect of feedback service form and ball quality using video and wearable device on the accuracy of the second service in high school tennis players

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000043916

Enrollment

180

Registered

2021-04-14

Start date

2021-08-10

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 high school tennis player

Interventions

Provides feedback on the service ball speed, ball rotation speed, impact position, swing speed, and service form for each of the 1st service and 2nd service. Distribute the feedback data to the player

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: A high school tennis member who participated in the best 8 in the rookie competition in the first year second year of Reiwa.

Exclusion criteria

Exclusion criteria: Those who do not have written consent to participate in this study. Those who experience pain when performing service motions. Those who do not participate in the practice for some reason.

Design outcomes

Primary

Measure	Time frame
Second service accuracy score	—

Secondary

Measure	Time frame
Service ball speed, ball rotation speed, swing speed, questionnaire survey, age, height, weight, tennis history	—

Countries

Japan

Contacts

Public ContactKiyokazu Akasaka

Saitama Medical University Department of Physical Therapy

kiyokazu.akasaka@gmail.com0492951001

Outcome results

None listed

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