Effect of Flexibility Training Versus Static Stretching on Hamstring Muscle Length and Patterns of Lumbar Flexion

Luleå Tekniska Universitet

Status: Completed

Conditions: Low Back; Static Stretching; Muscle; Dynamic Stretching

Treatments: Behavioral: Mobility of the hamstrings muscles

Study type: Interventional

Funder types: Other

Identifiers

NCT02702219

LTU_STRETCH_RCT

Details and patient eligibility

About

Mobility training in the form of stretching and flexibility training of our skeletal muscle is a common exercise. However, the evidence are scare and there are only a few studies comparing the effect of prolonged static stretching (> 90 sec) and dynamic flexibility training as to which of these methods has the best length-enhancing effect over time. Further, in clinical practice concerning low back pain, the possibility of a thigh hamstrings muscles to affect movement control of the spine is often mentioned, a link not fully explored in a controlled condition. The purpose of this study is to compare the effect of eight weeks of dynamic flexibility training versus prolonged static stretching on mobility in the hamstring muscles in adults with reduced mobility in the muscles at the back of the thigh. The aim is also to compare the sustained effect of flexibility training between the two groups, eight weeks after completion of the intervention. Furthermore, the aim is to explore how different forms of flexibility training affects movement patterns of the lumbar spine in adult persons with reduced mobility in the hamstrings.

Enrollment: 52 patients

Sex: All

Ages: 18 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Restricted hip flexion < 80 degress due to thight hamstrings muscles

Exclusion criteria

• discomfort or illness from musculoskeletal system which significantly affects the person in his/her everyday life
• previous injury (within 12 weeks) in the hamstring muscle prior to study entry
• known RA diagnosis
• known neurological disease
• medication affecting the musculskeletal system

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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52 participants in 2 patient groups

Dynamic streching

Experimental group

Description:

Mobility training of the hamstrings muscles to be performed every day

Treatment:

Behavioral: Mobility of the hamstrings muscles

Static stretching

Active Comparator group

Description:

Static stretching of the hamstrings muscles to be performed every day

Treatment:

Behavioral: Mobility of the hamstrings muscles