Carrying Heavy Shopping Bags and Muscle Function

NCT ID: NCT07271108

Last Updated: 2025-12-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-04-24

Study Completion Date

2025-07-16

Brief Summary

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What Is This Study About? To find out whether carrying heavy shopping bags twice a week can help adults not currently meeting physical activity strength guidelines improve muscle mass, strength, power, and endurance.

What Can Be learnt?

* Can carrying shopping bags help improve muscle mass, strength, power, and endurance?
* Should carrying shopping bags be included within physical activity recommendations?

Two groups will be compared:

* One group will carry shopping bags twice a week within a controlled lab environment
* The other group won't change anything in their routine.

What Will Participants Do?

* Self-select a weight for shopping bags that is heavy but can be carried for 15 minutes to use for all sessions
* Walk with shopping bags for 15 minutes at a normal walking speed for carrying shopping home from the supermarket.
* After each minute, the time stops and participants place bags on the floor. The time restarts for the next minute when the participant chooses to pick up the bags again.

Detailed Description

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Conditions

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Strength Strength Training Effects Resistance Exercise

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Control - Usual routine

Group Type NO_INTERVENTION

No interventions assigned to this group

Shopping bag carrying

Four-week shopping bag carry intervention (15 mins, 2x per week). Performed under supervision in laboratory.

Group Type EXPERIMENTAL

Experimental: Shopping bag carrying

Intervention Type BEHAVIORAL

Four-week shopping bag carry intervention (15 mins, 2x per week). Performed under supervision in laboratory.

Interventions

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Experimental: Shopping bag carrying

Four-week shopping bag carry intervention (15 mins, 2x per week). Performed under supervision in laboratory.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Performing less than 2 days per week of muscle strengthening exercise
* Pass the physical activity readiness questionnaire
* Available during data collection period

Exclusion Criteria

* Current or prior history of heart, lung, kidney, endocrine or liver disease or cancer.
* Performing more than 2 days per week of muscle strengthening exercise
* Answered yes to any of the questions in the Physical Activity Readiness Questionnaire
* Available during data collection period
Minimum Eligible Age

16 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Glasgow

OTHER

Sponsor Role lead

Responsible Party

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Stuart Gray

Prof. of Muscle and Metabolic Health

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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university of glasgow, James Black Building Lab

Glasgow, Glasgow City, United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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200220195

Identifier Type: -

Identifier Source: org_study_id

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