Mode Specific Effects of Isokinetic Training of Hamstring on Hamstring to Quadriceps Ratio

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-04-28

Study Completion Date

2021-10-14

Brief Summary

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Mode specificity of eccentric and concentric isokinetic training have been examined in previous studies but with conflicting results. The present study aimed to examine the mode-specific effects of eccentric and concentric isokinetic training of hamstring muscle at slow angular velocity on eccentric peak torque of hamstring (PTecc), concentric peak torque of quadriceps (PTcon), acceleration time of hamstring (AThams) and quadriceps (ATquad), deceleration time of hamstring (DThams) and quadriceps (DTquad), time to peak torque of hamstring (TPThams) and quadriceps (TPTquad), and functional Hamstring-to-Quadriceps ratio (PTecc/PTcon).

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Detailed Description

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Several studies in past have tried to examine the mode specificity of concentric and eccentric training of different muscles and at different angular velocities i.e. whether concentric training will increase the concentric strength only or both concentric and eccentric strength and whether eccentric training will increase eccentric strength only or both eccentric and concentric strength.

Since conflicting reports are available regarding mode specificity of eccentric and concentric isokinetic training therefore one study was needed that can examine the mode specificity of these training in hamstring muscles at slow angular velocity. The present study aimed to examine the mode-specific effects of six weeks of isokinetic concentric and eccentric training of the hamstring muscle at slow angular velocity on the PTecc/PTcon, AT, DT, and TPT.

Conditions

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Muscle Strength

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants were randomly divided into two groups.

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Eccentric isokinetic group

In this group, eccentric isokinetic training of hamstring muscle was performed.

Group Type EXPERIMENTAL

Eccentric isokinetic training

Intervention Type OTHER

Eccentric exercises of the hamstring muscles were performed with the use of an isokinetic dynamometer device.

Concentric isokinetic group

In this group, concentric isokinetic training of hamstring muscle was performed.

Group Type ACTIVE_COMPARATOR

Concentric isokinetic training

Intervention Type OTHER

Concentric exercises of the hamstring muscles were performed with the use of an isokinetic dynamometer device.

Interventions

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Eccentric isokinetic training

Eccentric exercises of the hamstring muscles were performed with the use of an isokinetic dynamometer device.

Intervention Type OTHER

Concentric isokinetic training

Concentric exercises of the hamstring muscles were performed with the use of an isokinetic dynamometer device.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Healthy young males
* Age between 18 to 27
* Recreationally active who used to engage regularly in 1-5 hours of physical activity per week

Exclusion Criteria

* Individual presently indulged in strength training of knee.
* Individuals with any kind of injury around the knee, hip, ankle, foot
* Unconsolidated fractures around the knee. • Stress fractures
* Subjects with the acute phase of trauma, which may interfere with the exercise regime
* Subjects with cardio-respiratory problems and other medical problems like diabetes, asthma, etc.
* Subjects with tendinitis and other inflammatory conditions.

Minimum Eligible Age

18 Years

Maximum Eligible Age

28 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes