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Neurodynamic Tensioning Plus Grip Strengthening for Hand Grip Strength

10 augusti 2026 uppdaterad 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.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Beräknad)

60

Fas

  • Inte tillämpbar

Kontakter och platser

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Studiekontakt

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen

Tar emot friska volontärer

Ja

Beskrivning

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

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Övrig
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / 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.
Experimentell: 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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Hand Grip Strength
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Pinch Strength
Tidsram: 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
Tidsram: 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
Tidsram: 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

Samarbetspartners och utredare

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Utredare

  • Huvudutredare: Uğur Sözlü, PhD, Tokat Gaziosmanpaşa Üniversitesi

Publikationer och användbara länkar

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Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

15 september 2026

Primärt slutförande (Beräknad)

15 januari 2027

Avslutad studie (Beräknad)

15 januari 2027

Studieregistreringsdatum

Först inskickad

10 augusti 2026

Först inskickad som uppfyllde QC-kriterierna

10 augusti 2026

Första postat (Faktisk)

13 augusti 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

13 augusti 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

10 augusti 2026

Senast verifierad

1 augusti 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • 36-04.08.2026

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