ClinicalTrials.gg
Status unknownNCT03316768Updated Apr 5, 2019

Measurement of Grip and Pinch Forces Needed for Activities of Daily Living, Work and Prehistoric Stone Tool Production

An observational study in Basilar Thumb Arthritis, Wrist Fracture and Measure Pressure Distribution and Resultant Forces Needed, sponsored by Shaare Zedek Medical Center. Status unknown. Open to participants aged 18 Years to 120 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-04-05.

Sponsored by Shaare Zedek Medical Center · Observational

The sponsor has not verified this record recently (last verified Apr 2018), so the status shown — last known as Not yet recruiting — may be out of date.

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Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
54
Ages
18 Years to 120 Years
Sex
All
01

Study summary

Very little is known about the pinch and grip forces that are critical for activities of daily living (ADL) or work. Human success in evolution is a result of the combination of great brain power and great hand ability to accomplish with our hands what our minds can conceive. Prehensile grasp in hominins allowed tool production and today allows us to hold fine instruments to perform surgery or do heavy construction. The strength of our hands is matched against the requirements of the activities we need to perform. The hypothesis of this study is that many tasks have an inherent strength requirement that is independent of the person performing the task. Until recently, direct measurement of the forces has not been possible. Ultra thin sensors along with the software to interpret the information is now available to make this force determination possible. We have 3 primary objectives. The primary objective is to measure pressure distribution and resultant forces needed for 3 categories of ADL and 2 categories of work in normal subjects. The second objective is to perform a similar evaluation of patients with basilar thumb arthritis and after wrist fracture. The third objective is to measure pressure distribution and forces needed for tool production and use.

Read the detailed description

The study will measure pressures and forces for ADL and simulated work using healthy volunteers. Sixteen volunteers will be chosen over a range of ages but specifically include similar numbers of early adulthood (18-44), middle age (45-65), and elderly (>65). Sixteen volunteers from each age group divided evenly by gender will be selected. Therefore, a total of 48 subjects will be tested, with an even number of male and female performing each of the activities listed above.

Inclusion Critera Volunteers will be recruited through website, personnel, and community contacts. They will be recruited based on age and gender.

Exclusion Criteria Patients will be excluded if they have a history of an inflammatory condition such as rheumatoid arthritis or lupus. They will be excluded if they have symptomatic osteoarthritis of their hands. Additional exclusion criteria will include known neurologic conditions, or prior injury that may be contributing to weakness or atrophy.

02

Conditions studied

  • Basilar Thumb Arthritis
  • Wrist Fracture
  • Measure Pressure Distribution and Resultant Forces Needed

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Keywords

  • grip
  • pinch
  • forces
  • pressure
  • Tekscan
  • sensor
  • ADL
  • activities of daily living
  • work requirements
  • hand biomechanics
  • forceful precision grip
  • power grip
  • hominid
  • hominin
  • prehistoric
03

In context

Wrist Fractures

330 studies on the registry are indexed under Wrist Fractures; 72 are open to participants now.

This study's planned enrollment of 54 is below the median of 100 across 53 observational studies indexed under Wrist Fractures.

Browse Wrist Fractures studies →

Lead sponsor

Shaare Zedek Medical Center is the lead sponsor of 195 studies on the registry; 19 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 120 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Healthy volunteers will be recruited through website, personnel, and community contacts. They will be recruited based on age and sex. Helsinki approval will be obtained before recruiting patients. Informed consent will be obtained.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy Volunteers
  • At least 18 years old
  • Willing to participate in the study

Exclusion criteria

Exclusion Criteria:

  • History of an inflammatory condition such as rheumatoid arthritis or lupus
  • Symptomatic osteoarthritis of their hands
  • Known neurologic condition
  • Prior injury that may be contributing to weakness or atrophy
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
54 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Grip Strength

    Grip Strength

    Time frame: one day

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jan 2020; primary completion for Jan 2020, 0 months later.

Of 20 observational studies under Wrist Fractures, half reached primary completion within 32 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 63. This study's planned 0 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 17, 2017
First posted
Oct 20, 2017
StartEst.
Jan 2020
Primary completionEst.
Jan 2020
CompletionEst.
Apr 2020
Last update
Apr 5, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 5, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03316768
Responsible party
Sponsor
First posted
Oct 20, 2017
Start date
Jan 2020 (estimated)
Primary completion
Jan 2020 (estimated)
Completion
Apr 2020 (estimated)
Last update
Apr 5, 2019

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2018. You cannot join it, but the record below documents what was studied.

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Discussion

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