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Comparison of the immediate effect of Antagonist contraction technique between Quadriceps femoris eccentric contraction vs concentric contraction on hamstring flexibility

Comparison of the immediate effect of Antagonist contraction technique between Quadriceps femoris eccentric contraction vs concentric contraction on hamstring flexibility

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
TCTR
Registry ID
TCTR20190309002
Enrollment
36
Registered
2019-03-09
Start date
2018-11-19
Completion date
Unknown
Last updated
2026-03-30

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

Conditions

Hamstrings muscle tightness Flexibility Proprioceptive Neuromuscular Facilitation stretching PNF stretching Hamstrings muscle Reciprocal inhibition Concentric contraction Eccentric contraction

Interventions

Participants are going to be positioned with a metal frame in a position of hip and knee flexion in 90º. Then&#44
one of the researchers would passively extend the participant’s knee until maximum resistance could be felt. Next&#44
the researcher would ask the participant to do a 30º of eccentric contraction of the quadriceps femoris muscle by slowly resisting 20% of the maximal voluntary isometric contraction force from the re
the researcher would passively flex the knee for 30º from the starting point and asked the participant to do a 30º of concentric contraction of the quadriceps femoris muscle by resisting 20% of the
Antagonist Eccentric contraction,Antagonist Concentric contraction,Control

Sponsors

Faculty of Physical therapy, Srinakharinwirot University
Lead Sponsor
Faculty of Physical therapy&#44
Collaborator
Srinakharinwirot University
Collaborator

Eligibility

Sex/Gender
Male
Age
18 Years to 25 Years

Inclusion criteria

Inclusion criteria: 1. Male participants within the age of 18 - 25 years old 2. Body Mass Index (BMI) within 18.5 – 24.9 kg/m2 3. Hamstring muscle tightness by having 160º or lower passive knee extension angle 4. Consent to participate in the research

Exclusion criteria

Exclusion criteria: 1. History of injury at the spine, hip, knee, anterior thigh muscles or posterior thigh muscles within 6 months prior to date of participation 2. Joint contractures or deformities 3. Neuromuscular disorders 4. Cardiovascular disorders 5. Regular exercise more than 3 times per week 6. Using any medication which affects the musculoskeletal system such as Anti-inflammation drugs or pain killer

Design outcomes

Primary

MeasureTime frame
Hamsting muscle flexibility Immediately after intervention Passive knee extension

Secondary

MeasureTime frame
None None None

Countries

Thailand

Contacts

Public ContactRattiya Chindewa

Faculty of Physical therapy, Srinakharinwirot University

ratt@g.swu.ac.th086-104-8002

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Apr 4, 2026