Exercise Movement Techniques
Conditions
Brief summary
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.
Interventions
DEVICEWeightlifting 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.
Sponsors
Education University of Hong Kong
The University of Hong Kong
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
MALE
Age
18 Years to 30 Years
Healthy volunteers
Yes
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Knee flexion angle | Through study completion, an average of two hours | Knee flexion angle during setup phase of a deadlift |
| Thoracic kyphosis angle | Through study completion, an average of two hours | Thoracic kyphosis angle during lockout phase of a deadlift |
| Lumbar lordosis angle | Through study completion, an average of two hours | Lumbar lordosis angle during lockout phase of a deadlift |
| Hip flexion angle | Through study completion, an average of two hours | Hip flexion angle during setup phase of a deadlift |
| Cervical lordosis angle | Through study completion, an average of two hours | Cervical lordosis angle during lockout phase of a deadlift |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Rating of perceived exertion | Through study completion, an average of two hours | Rating of perceived exertion during a deadlift |
| Time | Through study completion, an average of two hours | Time to complete a deadlift |
Countries
Hong Kong
Outcome results
None listed