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Miriam Mortimer, Level 3 Certified Personal Trainer with Diploma in Nutrition (as of February 2026)

Please Note: The Mental Health & Wellbeing and Understanding Coeliac Disease sections are NOT reviewed by Miriam Mortimer and fall outside her professional remit. These pages are for informational purposes only.

SAFETY FIRST

Injury Prevention Strategies

Most training injuries are preventable. Learn how to train hard while staying healthy and avoiding the mistakes that sideline so many people.

Key Takeaway: An injury-free year of consistent training beats sporadic intense periods interrupted by setbacks. Train smarter, not just harder.

Three young women are stretching on the gym floor, engaging in warm-up exercises. They are smiling and enjoying their time together in a fitness environment

The Four Pillars of Injury Prevention

Always Warm Up & Cool Down

5-10 minutes of light cardio and dynamic stretching increases blood flow, raises body temperature, and prepares joints for loading. Cooling down is equally important for recovery.

Progress Gradually

Follow the 10% rule: increase weight, volume, or intensity by no more than 5-10% per week to allow tissues to adapt.

Prioritise Recovery

Sleep, nutrition, and rest days allow tissues to repair and strengthen. Overtraining leads to injury.

Listen to Your Body

Discomfort is normal. Sharp pain is not. Learn the difference and respect warning signs before they become injuries.

Common Training Injuries & How to Prevent Them

Lower Back Pain/Strain

One of the most common gym injuries, often caused by poor form during squats, deadlifts, or excessive spinal flexion/extension under load.

Common Causes:

• Rounding the back during deadlifts
• Excessive spinal extension (arching)
• Lifting too heavy too soon
• Weak core musculature

Prevention Strategies: What can help:

• Master hip hinge pattern
• Brace core before every lift
• Build core strength with planks
• Progress weight slowly (5% max)

Warning Signs:

• Sharp pain during lifts
• Stiffness after training
• Pain radiating to legs
• Loss of range of motion

If experiencing these symptoms, consult a qualified physiotherapist or healthcare professional for assessment and personalized treatment.

Shoulder Impingement/Pain

Occurs when tendons in the shoulder are compressed during overhead movements, causing pain and reduced mobility.

Common Causes:

• Poor shoulder positioning in presses
• Excessive overhead work volume
• Weak rotator cuff muscles
• Internal rotation dominance

Prevention Strategies: What can help:

• Retract and depress shoulder blades
• Strengthen rotator cuff (band work)
• Balance push/pull exercises 1:1
• Limit overhead volume if prone

Warning Signs:

• Pain on overhead pressing
• Clicking or popping sounds
• Pain at night when sleeping
• Weakness in arm movements

If experiencing these symptoms, consult a qualified physiotherapist for assessment. They can provide appropriate rehabilitation exercises.

Knee Pain (Patellofemoral Syndrome)

Pain around or behind the kneecap, often from poor squat mechanics or muscular imbalances around the knee joint.

Common Causes:

• Knees caving inward (valgus)
• Weak glutes and hip abductors
• Excessive forward knee travel
• High-volume jumping/lunging

Prevention Strategies: What can help:

• Cue "knees out" during squats
• Strengthen glutes (hip thrusts)
• Build quad strength gradually
• Improve ankle mobility

Warning Signs:

• Pain during squatting
• Grinding sensation in knee
• Pain climbing stairs
• Swelling around kneecap

If experiencing these symptoms, consult a physiotherapist for proper assessment and individualized treatment plan.

Tennis/Golfer's Elbow (Tendinopathy)

Overuse injuries affecting the tendons on the outside (tennis elbow) or inside (golfer's elbow) of the elbow from repetitive gripping.

Common Causes:

• Excessive pull-up or rowing volume
• Poor grip technique
• Weak forearm musculature
• Sudden increase in training volume

Prevention Strategies: What can help:

• Build forearm strength gradually
• Use varied grip widths/styles
• Avoid overgripping (death grip)
• Incorporate wrist curls/extensions

Warning Signs:

• Pain on gripping objects
• Tenderness on elbow
• Weakness in wrist/forearm
• Pain radiating down forearm

If experiencing these symptoms, consult a qualified physiotherapist who can provide appropriate treatment and rehabilitation guidance.

The Ideal Warm-Up Protocol

A proper warm-up prepares your body physically and mentally, reducing injury risk by up to 50%. Never skip it.

1. General Warm-Up

Duration: 5-10 minutes

• Light cardio (cycling, rowing, jogging)
• Raise heart rate and body temperature
• Increase blood flow to muscles
• Should break a light sweat

2. Dynamic Stretching

Duration: 5 minutes

• Leg swings, arm circles
• Walking lunges with rotation
• Bodyweight squats
• Cat-cow spinal mobility

3. Specific Warm-Up

Duration: 3-5 minutes

• Exercise-specific movements
• Start with empty bar/light weight
• Gradually increase to working weight
• Example: 3 sets ramping up

Pain vs. Discomfort: Know the Difference

Normal Training Discomfort

Muscle burn: Lactic acid buildup during sets (dull, burning sensation)
Post-workout soreness: DOMS (delayed onset muscle soreness) 24-72 hours later
Fatigue: General tiredness and heaviness in muscles
Stretching sensation: Mild discomfort when stretching tight muscles

✓ These are normal. Keep training with proper form.

Warning Signs: STOP Training

Sharp pain: Sudden, acute pain during a movement (stop immediately)
Joint pain: Pain inside a joint rather than muscle (not normal)
Numbness/tingling: Could indicate nerve compression
Swelling: Visible inflammation around a joint or muscle

✗ Stop, assess, and seek professional help if persistent.

Train Safe, Train Consistent

Our 12-week programme includes comprehensive warm-ups, proper progression protocols, and injury prevention strategies built into every session.

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