Weightlifting Belts and Wrist Straps for Weightlifters

The Influence of Weightlifting Belts and Wrist Straps on Deadlift Kinematics, Time to Complete a Deadlift and Rating of Perceived Exertion in Male Recreational Weightlifters

Objective: This study examined the effects of weightlifting belts and wrist straps on the kinematics of the deadlift exercise, time to complete a deadlift and rating of perceived exertion (RPE) in male recreational weightlifters.

Methods: Twenty participants used various combinations of belt and straps during a conventional deadlift. The hip and knee flexion, cervical lordosis, thoracic kyphosis and lumbar lordosis angles and time to complete a deadlift were measured using video analysis software. RPE was also recorded.

Study Overview

• Status: Completed
• Conditions: Exercise Movement Techniques
• Intervention / Treatment: Device: Weightlifting belts and wrist straps

• Study Type: Interventional
• Enrollment (Actual): 20
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Hong Kong
  • Hong Kong, Hong Kong
    • University of Hong Kong

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 30 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Male

Description

Inclusion Criteria:

• men
• aged 18 to 30 years
• more than 3 years of weightlifting experience
• have been training at least 4 hours per week
• engage in recreational weightlifting

Exclusion Criteria:

• musculoskeletal disorders (e.g., leg length discrepancies and severe flat feet)
• neurological disorders (e.g., epilepsy)
• spinal problems (e.g., scoliosis)
• upper limb problems (e.g., history of shoulder dislocation, tennis or golf elbow)
• recent injuries that could affect performance
• train regularly for other sports.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Male recreational weightlifters

Device: Weightlifting belts and wrist straps; The participants wore a weightlifting belt (Heavywear Nylon Contour Belt H9, North Carolina, USA) for the "with weightlifting belt" conditions and/or put on a pair of wrist straps (Versa Gripps Professional Series, Versa Gripps, Maine, USA) for the "with wrist strap" conditions. The steps involved in completing a conventional deadlift have been detailed in Holmes.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Hip flexion angle	Hip flexion angle during setup phase of a deadlift	Through study completion, an average of two hours
Knee flexion angle	Knee flexion angle during setup phase of a deadlift	Through study completion, an average of two hours
Cervical lordosis angle	Cervical lordosis angle during lockout phase of a deadlift	Through study completion, an average of two hours
Thoracic kyphosis angle	Thoracic kyphosis angle during lockout phase of a deadlift	Through study completion, an average of two hours
Lumbar lordosis angle	Lumbar lordosis angle during lockout phase of a deadlift	Through study completion, an average of two hours

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time	Time to complete a deadlift	Through study completion, an average of two hours
Rating of perceived exertion	Rating of perceived exertion during a deadlift	Through study completion, an average of two hours

Collaborators and Investigators

• Sponsor: The University of Hong Kong
• Collaborators: Education University of Hong Kong

Study record dates

Study Major Dates

• Study Start (Actual): January 1, 2021
• Primary Completion (Actual): June 1, 2021
• Study Completion (Actual): September 1, 2021

Study Registration Dates

• First Submitted: November 20, 2021
• First Submitted That Met QC Criteria: December 16, 2021
• First Posted (Actual): January 5, 2022

Study Record Updates

• Last Update Posted (Actual): January 5, 2022
• Last Update Submitted That Met QC Criteria: December 16, 2021
• Last Verified: December 1, 2021

More Information

Terms related to this study

• Other Study ID Numbers: 00001

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: Confidentiality of participant information.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No