Efficiency in 4-week Plyometric Training: Lower Limb Improvement in Sedentary Adults

NCT ID: NCT05928130

Last Updated: 2024-03-12

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 60 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-07-30
• Study Completion Date: 2024-02-20

Brief Summary

The goal of this clinical trial is to compare the effects of different volumes of plyometric training on lower limb muscle strength, power, and muscle activity in sedentary individuals. The main question[s] it aims to answer are:

• What is the minimum volume of plyometric training that can induce changes in lower limb strength and power variables?
• How does muscle activity in the lower limbs vary with different volumes of plyometric training?

Participants will be asked to:

• Complete questionnaires to determine their level of physical activity.
• Attend pre and post-evaluations of lower limb muscle activity, strength, and power during an instrumented sit-to-stand test.
• Perform lower limb plyometric exercises, such as jumps, hops, and bounds.
• Attend supervised training sessions three times a week for a duration of 4 weeks.

Researchers will compare three groups to see if the minimum volume of plyometric training can be identified.

Conditions

Plyometric Exercise; Sedentary Behavior

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: DOUBLE

Study Groups

Volume Training Group

Participants in this group will undergo a plyometric training protocol at a known effective volume that is expected to induce changes in lower limb strength, power, and muscle activity.

Group Type: EXPERIMENTAL

plyometric training protocol

Intervention Type: OTHER

The plyometric training program will last for 4 weeks, with three sessions per week. The plyometric exercises will be performed immediately after a warm-up. The program will incorporate bilateral, unilateral, acyclic, cyclic, horizontal, vertical, lateral, and diagonal movements involving both slow and fast movements.

Each session will include 4-5 plyometric exercises, with 2-10 sets per exercise and 1-10 repetitions per set. The training volume will progressively increase from the 1st to the 2nd week and then the intensity will increase while the volume decreases from the 3rd to the 4th week in both intervention groups. However, the final volume will vary by 50% between the groups.

Reduced Volume Training Group

Participants in this group will undergo a plyometric training protocol at a lower volume than the Volume Training Group, aiming to determine if a lower volume still leads to significant improvements in lower limb strength, power, and muscle activity.

Group Type: EXPERIMENTAL

plyometric training protocol

Intervention Type: OTHER

The plyometric training program will last for 4 weeks, with three sessions per week. The plyometric exercises will be performed immediately after a warm-up. The program will incorporate bilateral, unilateral, acyclic, cyclic, horizontal, vertical, lateral, and diagonal movements involving both slow and fast movements.

Each session will include 4-5 plyometric exercises, with 2-10 sets per exercise and 1-10 repetitions per set. The training volume will progressively increase from the 1st to the 2nd week and then the intensity will increase while the volume decreases from the 3rd to the 4th week in both intervention groups. However, the final volume will vary by 50% between the groups.

Control Group

Participants in this group will not undergo any plyometric training and will serve as a comparison to assess the natural progression of lower limb strength, power, and muscle activity without intervention.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

plyometric training protocol

The plyometric training program will last for 4 weeks, with three sessions per week. The plyometric exercises will be performed immediately after a warm-up. The program will incorporate bilateral, unilateral, acyclic, cyclic, horizontal, vertical, lateral, and diagonal movements involving both slow and fast movements.

Each session will include 4-5 plyometric exercises, with 2-10 sets per exercise and 1-10 repetitions per set. The training volume will progressively increase from the 1st to the 2nd week and then the intensity will increase while the volume decreases from the 3rd to the 4th week in both intervention groups. However, the final volume will vary by 50% between the groups.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Subjects without lower limb musculoskeletal injuries in the past six months.
• Without previous lower limb surgery in the past two years
• Being sedentary

Exclusion Criteria

• Medical conditions that could compromise their participation (including cardiovascular disease).

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 35 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Rodrigo Lizama Perez

OTHER

Sponsor Role: lead

Responsible Party

Rodrigo Lizama Perez

secondary investigator

Responsibility Role: SPONSOR_INVESTIGATOR

Locations

Universidad San Sebastián, sede Valdivia.

Valdivia, , Chile

Countries

Chile

Other Identifiers

IDAFISAD 64202

Identifier Type: -

Identifier Source: org_study_id