Assessment Date: June 27, 2025
Location: Gym 1 – Commercial Gym Environment
1. Activity Description
Performing wall ball exercises using a medicine ball (up to 20lb/9kg, typically 14-inch diameter, soft leather or vinyl) in a gym or outdoor setting. The wall ball technique involves squatting while holding the ball at chest level, then explosively standing and throwing the ball to a target (e.g., 8-10ft high mark on a wall or rig), catching it on the descent, and repeating. Exercises target lower body, upper body, core, and cardiovascular endurance, commonly used in CrossFit and functional fitness.
Risk Assessment Matrix
• Likelihood: Rare (1), Unlikely (2), Possible (3), Likely (4), Almost Certain (5)
• Severity: Insignificant (1), Minor (2), Moderate (3), Major (4), Catastrophic (5)
• Risk Level: Low (1-4), Medium (5-9), High (10-15), Extreme (16-25)
3. Hazards, Risks, and Control Measures
Hazard: Improper Technique
Potential Risk : Muscle strains (e.g., lower back, quadriceps) or joint injuries (e.g., knees, shoulders) due to incorrect squat form, improper throw mechanics, or failure to catch the ball safely.
Likelihood: Possible (3)
Severity: Major (3)
Risk Level: High (9)
Control Measures:
- Provide instructional videos/signage on proper wall ball technique (e.g., full squat depth, vertical throw, catch with bent elbows).
- Offer coaching or gym inductions for beginners.
- Ensure staff (in gyms) monitor and correct form.
- Start with lighter balls (e.g., 6-10lb) to master technique before using 20lb.
Residual Risk Level: Low (4)
Hazard: Equipment Failure
Potential Risk : Medicine ball splitting or leaking filler, causing grip loss, uneven weight, or debris hazards, leading to missed catches or falls.
Likelihood: Rare (1)
Severity: Moderate (3)
Risk Level: Low (3)
Control Measures:
- Use high-quality, durable medicine balls with reinforced stitching (e.g., leather or vinyl).
- Inspect balls for tears, leaks, or wear before each use.
- Replace damaged balls immediately.
- Store balls in dry, shaded areas to prevent material degradation.
Residual Risk Level: Low (2)
Hazard: Target Wall
Potential Risk : Wall or rig target collapsing or loosening due to repeated ball impacts, causing falling debris or loss of target stability, leading to injuries.
Likelihood: Rare (1)
Severity: Major (4)
Risk Level: Medium (4)
Control Measures:
- Ensure target wall/rig is securely mounted (e.g., bolted to concrete or reinforced frame).
- Inspect wall/rig for cracks, loose bolts, or damage before use.
- Use walls/rigs rated for repeated impact (e.g., CrossFit-standard rigs).
- Limit throws to designated target height (8-10ft) to avoid structural stress.
Residual Risk Level: Low (2)
Hazard : Overexertion
Potential Risk : Cardiovascular strain, dizziness, or fainting from high-repetition wall balls, especially in high-intensity workouts like CrossFit WODs.
Likelihood: Possible (3)
Severity: Moderate (3)
Risk Level: Medium (9)
Control Measures:
- Display health warnings (e.g., consult a doctor for medical conditions).
- Encourage gradual progression (e.g., 10-15 reps with lighter balls).
- Ensure staff (in gyms) are trained in first aid and CPR.
- Include rest intervals in workouts (e.g., 30s work, 30s rest).
Residual Risk Level: Low (4)
Hazard : Collision with Equipment / Environment
Potential Risk : Bumping into the wall or nearby equipment, or being struck by a rebounding ball, causing bruises, cuts, or head injuries.
Likelihood: Unlikely (2)
Severity: Minor (2)
Risk Level: Low (4)
Control Measures:
- Ensure minimum 6ft x 6ft clear space in front of the target wall/rig.
- Use sturdy, smooth target walls (e.g., concrete, plywood) or rigs with marked 8-10ft targets.
- Store unused balls and equipment away from training area.
- Train users to aim for target and catch ball with control.
Residual Risk Level: Low (2)
Hazard : Slipping / Falling
Potential Risk : Slipping due to sweaty hands, wet floors, or missing the catch, causing falls, sprains, or the ball striking the user (e.g., face or chest).
Likelihood: Possible (3)
Severity: Moderate (3)
Risk Level: Medium (9)
Control Measures:
- Use medicine balls with textured surfaces for better grip.
- Encourage use of chalk or gloves to manage sweat.
- Perform exercises on non-slip rubber mats or lifting platforms.
- Require closed-toe athletic footwear and inspect floor for spills.
Residual Risk Level: Low (2)
Hazard : Dropping Ball
Potential Risk : Dropping the ball during squat or catch, causing foot injuries, floor damage, or tripping hazards, especially with heavier 20lb balls.
Likelihood: Unlikely (2)
Severity: Moderate (3)
Risk Level: Medium (6)
Control Measures:
- Train users to maintain controlled squat and catch with bent elbows.
- Use rubberized flooring or crash mats to absorb impact.
- Advise setting ball down gently if fatigued, rather than dropping.
- Use lighter balls for high-rep sets until proficient.
Residual Risk Level: Low (3)
Hazard : Environmental Factors
Potential Risk : Injuries due to poor lighting (misjudging target or ball trajectory), uneven outdoor surfaces, or crowded spaces, leading to missed catches or collisions.
Likelihood: Unlikely (2)
Severity: Moderate (3)
Risk Level: Medium (6)
Control Measures:
- Ensure well-lit training areas (min. 300 lux) for indoor use.
- Use level surfaces (e.g., turf, concrete with mats) for outdoor training.
- Limit nearby activity to avoid distractions or collisions during throws.
Residual Risk Level: Low (3)
4. Additional Control Measures
- Emergency Procedures: Ensure first aid kits and emergency contact numbers are accessible. Train gym staff or outdoor users in basic emergency response.
- User Education: Provide gym inductions or online tutorials covering safe wall ball techniques, including squat depth, throw mechanics, and catching methods. Use posters or apps (e.g., CrossFit or fitness apps) to reinforce proper form (e.g., engage core, follow through on throw).
- Cleaning Protocols: Regular cleaning of medicine balls to remove sweat and prevent bacterial buildup, using mild disinfectant. Inspect and clean training area for spills or debris.
- Age Restrictions: Restrict use to participants aged 16+ unless supervised by a trainer or coach.
- Protective Equipment: Recommend optional use of knee sleeves for squat stability and wrist wraps for throw/catch support, with guidance on proper use.
5. Monitoring and Review
- Monitoring: Instructors to conduct daily visual inspections of medicine balls, target wall/rig, and training surfaces for damage, wear, or hazards.
- Incident Reporting: Maintain a log for all accidents or near-misses to identify recurring issues.
- Review Date: Annual review or after any reported incident (next review: June 27, 2026).