Effects of low-load blood flow restriction training on functional and structural patellar tendon properties

Effects of low-load blood flow restriction training on functional and structural patellar tendon properties - Patellar BFR Study

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00022567

Enrollment

Registered

2020-07-29

Start date

2020-08-03

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

Effects of resistance training on tendon properties in healthy and young individuals

Interventions

Group 1: High-load resistance training Group 2: Low-load resistance training with blood flow restriction

Eligibility

Sex/Gender

Male

Age

18 Years to 40 Years

Inclusion criteria

Inclusion criteria: - Male gender - Age: 18-40 years - BMI: 18.9-29.9 kg/m² - No evidence of cardiovascular diseases in the medical history - No acute or chronic injuries of the lower extremities (especially no pre-existing achillodynia) - No previous sporting activity of > 60-120min/week - no contraindications against physical exertion according to ACSM guidelines - no intake of performance-enhancing supplementary nutrition (e.g. creatine monohydrate)

Exclusion criteria

Exclusion criteria: Not meeting inclusion criteria

Design outcomes

Primary

Measure	Time frame
Change in patellar tendon cross-sectional area	—

Secondary

Measure	Time frame
All secondary endpoints are collected before and after the 14-week intervention. The mechanical properties of the patellar tendon are measured by synchronizing ultrasonic, force and goniometer data. In addition, the Achilles tendon cross section and muscle cross section are determined by MRI and collagen synthesis markers in the blood are measured. The muscle strength is measured by means of isometric maximum force measurement.	—

Measure

Time frame

All secondary endpoints are collected before and after the 14-week intervention. The mechanical properties of the patellar tendon are measured by synchronizing ultrasonic, force and goniometer data. In addition, the Achilles tendon cross section and muscle cross section are determined by MRI and collagen synthesis markers in the blood are measured. The muscle strength is measured by means of isometric maximum force measurement.

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Countries

Germany

Contacts

Public ContactChristoph Centner

Albert-Ludwigs-Universität Freiburg

christoph.centner@sport.uni-freiburg.de+4976138948970

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026