Musculoskeletal disorder.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Age between 18 and 35 years At least one year of regular CrossFit training experience with a moderate level of physical activity, based on the validated short-form Persian version of the International Physical Activity Questionnaire (IPAQ)
Exclusion criteria
Exclusion criteria: History of acute upper limb injury within the past six months- Presence of cardiovascular, neurological, or musculoskeletal disorders that could affect physical performance Presence of cardiovascular, neurological, or musculoskeletal disorders that could affect physical performance Use of anti-inflammatory drugs or supplements that may influence muscle recovery during the weeks preceding the study Presence of contraindications to blood flow restriction, including a history of deep vein thrombosis, coagulation disorders, poor circulation, easy bruising, hypertension, varicose veins, peripheral vascular disease, lymphatic insufficiency, renal dysfunction, diabetes, active infection, cancer, or pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Perceived recovery: It is determined using perceived recovery status scale. Participants select an integer between 0 and 10 from a segmented version of the scale that most accurately reflects their perceived level of recovery. This 11-point scale ranges from 0, indicating “not recovered at all”, to 10, indicating “fully recovered”. Timepoint: Before the intervention, immediately after the intervention, and 24 hours after the intervention. Method of measurement: Perceived recovery status scale (PRSS): Participants select an integer between 0 and 10 from a segmented version of the scale that most accurately reflects their perceived level of recovery. This 11-point scale ranges from 0, indicating “not recovered at all”, to 10, indicating “fully recovered”. | — |
Secondary
| Measure | Time frame |
|---|---|
| Muscular Power: Muscular power is defined as the amount of work performed by a muscle per unit of time and is related to both the magnitude of force and the speed of movement; in other words, power represents the rate at which work is performed. In the present study, this concept refers to upper limb muscular power, which is assessed using the Seated Medicine Ball Chest Pass Test. Timepoint: Before the intervention, immediately after the intervention, and 24 hours after the intervention. Method of measurement: The participant sits on the floor with the head, shoulders, back, and hips fully in contact with the wall, and the legs extended straight forward. The participant holds a 2-kg medicine ball with both hands at chest level. A measuring tape is placed on the floor with one end fixed to the wall. Without allowing the head, shoulders, back, or hips to lose contact with the wall, the participant throws the ball forward horizontally with maximal effort to achieve the greatest possible distance. Before each throw, the ball is dusted with magnesium carbonate (gym chalk) so that it leaves a clear mark on the floor at the point of first contact, facilitating distance measurement. The participant performs three maximal-effort throws, with a one-minute rest interval between attempts. The distance from the wall to the first point where the ball contacts the floor is recorded as the throw distance. The greatest distance achieved among the three trials is normalized to the participant’s height and recorded as the test result. A throw is considered invalid and must be repeated if: 1. The throw is not performed horizontally from the chest (the angle is visually monitored by the researcher), 2. The participant lifts the feet off the floor, or 3. The head, back, or hips lose contact with the wall.;Upper limb functional balance: Upper Limb Functional Balance refers to the body’s ability to maintain stability and control upper limb movements in various dynamic positions, allowing t | — |
Countries
Iran (Islamic Republic of)
Contacts
Tehran University of Medical Sciences