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Neurodynamic Tensioning Plus Grip Strengthening for Hand Grip Strength

10. august 2026 oppdatert av: Uğur Sözlü, Tokat Gaziosmanpasa University

Effect of Neurodynamic Tensioning Added to a Grip Strengthening Program on Hand Grip Strength: A Randomized Controlled Trial

This randomized controlled trial will investigate whether adding neurodynamic tensioning to a grip strengthening program provides additional improvements in hand grip strength in healthy adults. Sixty participants aged 18 to 40 years will be randomly assigned to two groups. Both groups will perform a standardized grip strengthening program for six weeks, three days per week. The experimental group will additionally receive neurodynamic tensioning exercises targeting the median and ulnar nerves. Hand grip strength will be assessed at baseline, week 3, and week 6. The study aims to determine whether neurodynamic tensioning provides additional benefit beyond grip strengthening alone.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Detaljert beskrivelse

This study is designed as a prospective, two-arm, parallel-group randomized controlled trial investigating the additional effects of neurodynamic tensioning on hand grip strength in healthy adults. A total of 60 participants aged 18 to 40 years will be enrolled and randomly allocated in a 1:1 ratio to either a control group or an experimental group using computer-based block randomization.

Participants in both groups will perform a standardized grip strengthening program using an adjustable hand gripper for six weeks, three sessions per week. Each session will include three sets of 8-12 repetitions, with progressive resistance according to participant performance and perceived exertion.

In addition to the same grip strengthening program, participants in the experimental group will receive neurodynamic tensioning targeting the median and ulnar nerves. Neurodynamic techniques will be performed within pain-free limits using controlled tensioning movements. For each nerve, three sets of 10 repetitions will be performed before the grip strengthening exercises.

The primary outcome will be hand grip strength, measured using a Jamar hand dynamometer or an equivalent valid and reliable hand dynamometer. Grip strength will be assessed in standardized and different upper-extremity positions. Secondary outcomes will include pinch strength, manual dexterity, perceived exertion, intervention adherence, and adverse events.

Assessments will be performed at baseline (T0), week 3 (T1), and week 6 (T2). The outcome assessor will be blinded to group allocation. The main analysis will evaluate group, time, and group-by-time interaction effects to determine whether adding neurodynamic tensioning to grip strengthening results in greater improvement in hand grip strength than grip strengthening alone.

Studietype

Intervensjonell

Registrering (Antatt)

60

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen

Tar imot friske frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Aged between 18 and 40 years.
  • Willing to participate voluntarily in the study.
  • No history of upper-extremity pain, injury, or surgery within the previous three months.
  • No diagnosed neurological, rheumatological, or systemic disease affecting the peripheral nervous system.
  • Sufficient cognitive ability to understand and follow the study protocol.

Exclusion Criteria:

  • History of carpal tunnel syndrome, cervical radiculopathy, peripheral neuropathy, or upper-extremity entrapment neuropathy.
  • History of upper-extremity fracture or surgery within the previous six months.
  • Regular participation in grip strengthening exercises or intensive upper-extremity resistance training.
  • Use of medication that may affect neuromuscular performance.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Annen
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Aktiv komparator: Grip Strengthening Group
Participants will perform a standardized grip strengthening program using an adjustable hand gripper for six weeks, three sessions per week. Each session will consist of 3 sets of 8-12 repetitions. Resistance will be progressively adjusted according to performance and perceived exertion. No neurodynamic tensioning, neural gliding, or sham intervention will be applied to this group.
Participants will perform a standardized grip strengthening program using an adjustable hand gripper with the dominant hand for six weeks, three sessions per week. Each session will consist of 3 sets of 8-12 repetitions, with approximately 2 seconds of gripping and 2 seconds of relaxation per repetition. Rest periods of 60-90 seconds will be provided between sets. Resistance will be progressively adjusted according to performance and perceived exertion.
Eksperimentell: Neurodynamic Tensioning Plus Grip Strengthening Group
Participants will receive neurodynamic tensioning targeting the median and ulnar nerves in addition to the same standardized grip strengthening program. For each nerve, neurodynamic tensioning will be performed as 3 sets of 10 repetitions using controlled rhythmic tensioning within pain-free limits. The intervention will be performed for six weeks together with the grip strengthening program.
Participants will perform a standardized grip strengthening program using an adjustable hand gripper with the dominant hand for six weeks, three sessions per week. Each session will consist of 3 sets of 8-12 repetitions, with approximately 2 seconds of gripping and 2 seconds of relaxation per repetition. Rest periods of 60-90 seconds will be provided between sets. Resistance will be progressively adjusted according to performance and perceived exertion.
Neurodynamic tensioning targeting the median and ulnar nerves will be applied before the grip strengthening program. For each nerve, 3 sets of 10 repetitions will be performed, with each repetition consisting of approximately 4-5 seconds of controlled rhythmic tensioning. A 30-second rest period will be provided between sets. The technique will be performed within pain-free limits, producing only a mild stretching sensation.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Hand Grip Strength
Tidsramme: Baseline, Week 3, and Week 6
Hand grip strength of the dominant hand will be measured in kilograms (kg) using a Jamar hand dynamometer or an equivalent valid and reliable hand dynamometer. Measurements will be performed in three upper-extremity positions: standard seated position with the elbow at 90 degrees of flexion, elbow extension with the shoulder in a neutral position, and shoulder at 90 degrees of flexion with the elbow extended. Three trials will be performed in each position, and the mean of the three measurements will be used for analysis.
Baseline, Week 3, and Week 6

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Pinch Strength
Tidsramme: Baseline, Week 3, and Week 6
Pinch strength will be assessed using a pinch gauge, if available, including lateral and/or palmar pinch measurements. Measurements will be performed on the dominant hand, and changes over time will be compared between groups.
Baseline, Week 3, and Week 6
Change in Manual Dexterity
Tidsramme: Baseline, Week 3, and Week 6
Manual dexterity will be assessed using the Nine-Hole Peg Test or an equivalent valid and reliable manual dexterity test. Performance will be recorded at each assessment time point, and changes over time will be compared between groups.
Baseline, Week 3, and Week 6
Perceived Exertion During the Intervention
Tidsramme: Baseline, Week 3, and Week 6
Perceived exertion during the grip strengthening exercises will be recorded using a rating of perceived exertion (RPE). RPE will be used to monitor exercise intensity and guide progression of resistance throughout the intervention.
Baseline, Week 3, and Week 6

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Uğur Sözlü, PhD, Tokat Gaziosmanpaşa Üniversitesi

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

15. september 2026

Primær fullføring (Antatt)

15. januar 2027

Studiet fullført (Antatt)

15. januar 2027

Datoer for studieregistrering

Først innsendt

10. august 2026

Først innsendt som oppfylte QC-kriteriene

10. august 2026

Først lagt ut (Faktiske)

13. august 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

13. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

10. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • 36-04.08.2026

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