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Effects of Combining PNF With NMES in Young Basketball Players

NCT06648356 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 44

Last updated 2024-10-30

No results posted yet for this study

Summary

Hamstring muscle injuries are common in basketball and result in long periods of inactivity. This study aims to compare two different stretching programs to assess their effects on hamstring flexibility and, secondarily, on jumping ability in young basketball players. One program uses a special stretching technique called proprioceptive neuromuscular facilitation (PNF), while the other uses the same stretching but adds electrical stimulation (NMES).

Conditions

  • Hamstring Flexibility

Interventions

OTHER

Neuromuscular electrical stimulation (NMES)

Neuromuscular electrical stimulation (NMES) is applied during an isometric contraction. The NMES uses a symmetrical biphasic rectangular pulse (50Hz frequency and 300 µs phase width) delivered through an Enraf Nonius TensMed S82 electrostimulator. Two 5x9 cm electrodes are placed on the hamstrings, and participants adjust the current to a moderate-strong, yet painless, contraction level. During the intervention, one researcher maintains the stretch position while another researcher controls the current intensity and monitors the timing of both stretching and contractions.

OTHER

Contract-Relax PNF (crPNF)

The crPNF Group engages in an isolated contract-relax proprioceptive neuromuscular facilitation (crPNF) stretching protocol. Participants are positioned in a long sitting posture with maximum knee extension until they feel a moderate-strong stretch sensation, without pain. Each stretch lasts for 20 seconds, followed by a 5-second maximal voluntary isometric contraction of the hamstrings. Participants complete three cycles of stretch and contraction. One researcher maintains the stretch position while a second researcher controls the timing of the stretching and contractions.

Sponsors & Collaborators

  • Cardenal Herrera University

    lead OTHER

Principal Investigators

  • Juan Francisco Lisón Párraga, Dr · Cardenal Herrera University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
11 Years
Max Age
18 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-10-01
Primary Completion
2024-10-22
Completion
2024-10-23

Countries

  • Spain

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06648356 on ClinicalTrials.gov