Sports Performance
Conditions
Brief summary
The back squat is a commonly utilized resistance training exercise for the promotion of both performance and musculoskeletal health. There are a range of manipulations that can be made to the setup of this resistance exercise, with once such adaptation being the stance width when performing the exercise. This intervention aims to explore the effects of increasing the stance with on performance indices in elite rugby league players.
Interventions
BEHAVIORALNormal stance width
Normal self-selected stance width when performing squat exercises.
BEHAVIORALWide stance width
Increased stance with (by 20% over their own self-selected stance width) when performing squat exercises.
Sponsors
University of Central Lancashire
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Investigator)
Intervention model description
Stratified to include similar number of forward and backs in each arm.
Eligibility
Sex/Gender
MALE
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Rugby league player contracted to a professional Super League team * 5-years minimum of back squat experience * Male * Injury free for 6-months
Exclusion criteria
* Female * Any injury at baseline * Any international matches played during the between season break
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 505 agility test | Baseline | Test of 180 degree turning ability, measured using timing gates. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Body mass | Baseline | Body mass using a weighing scale. |
| Sum of skinfold thickness | Baseline | Skinfold thicknesses measured using callipers at eight sites according to the International Society for the Advancement of Kinanthropometry (ISAK) restricted profile (triceps, subscapular, biceps, iliac crest, supraspinal, abdominal, mid-thigh, and medial calf) |
| Three repetition maximum squat strength | Baseline | The maximum squat weight that can be lifted for a total of three repetitions |
| Counter movement jump height | Baseline | The maximum height that can be jumped vertically, measured using a jump mat. |
Countries
United Kingdom
Outcome results
None listed