Weightlifting for Sports Performance - Notes

Resistance Training & Weightlifting

• Resistance training includes body weight, machines, free weights, bands & medicine balls.
• Weightlifting is a sport with snatch and clean & jerk lifts.
• Weightlifting movements are used in athletic training for their ability to develop physical abilities.
• UKSCA selects squat, clean, and snatch to develop force and velocity for impulse generation, transferring training benefits to sports performance.

Strength Lifts: The Squat

• High bar back squat stresses back, hip, and knee extensors; it's used in conditioning programs and rehabilitation.
• Preparation:
  • Bar slightly below shoulder height in squat rack, walk forward to allow for safe return.
  • Hands evenly spaced in over-grasp grip; scapula retraction supports the trunk.
  • Position bar on trapezius muscle ledge, created by pulling elbows down and back to activate thoracic extensors.
  • Feet hip-width apart under the bar for vertical power generation.
• Start & Finish: Full extension in knees, hips, and spine with bar on shoulders; feet flat, weight evenly distributed.
• Descent:
  • Flex hips and knees simultaneously, maintain upright trunk, brace trunk musculature.
  • Weight shifts towards the heel.
  • Knees track toes; avoid inward movement as it risks knee ligament injury.
• Bottom Position:
  • Maintain normal lumbar curve, control anterior or posterior pelvic tilt to avoid intervertebral disc compression.
  • Minimum depth: hip joint center below knee midpoint.
• Ascent:
  • Drive explosively, lead with the chest to maintain upright trunk.
  • Avoid leaning forward to prevent lumbar spine load.
• Failing Safely:
  • Use squat rack with safety bars or spotters.
  • Spotter places arms under armpits to assist.
  • To dump the bar, push it backward while jumping forward, maintaining an upright torso.
• Squat Variations:
  • Front Squat: Weight on front thighs, less glute/lumbar emphasis. Teaches vertical torso.
  • Overhead Squat: Challenges postural integrity and trunk strength. Bar held wide, facilitates shoulder stability.
  • Pistol Squat: Single-leg, increases complexity, focuses on alignment.

Weightlifting movements & Derivatives

• Weightlifting movements produce vertical forces (power) through triple extension of hips, knees, and ankles.
• Cleans & Snatches promote adaptation to receiving force through coordinated flexion.
• The athlete performs snatch, and clean & jerk.
• Clean: barbell from floor to front of shoulders.
• Jerk: barbell from shoulders to overhead.

How to Execute the Clean and Snatch

• Movements consist of "first pull", "transition", "second pull", "receiving of the bar (catch)", and "recovery".
• No stopping or pausing between phases.

The Snatch

• Starting Position
  • Centered on bar, bar bisecting MPJ, feet hip-width apart, toes slightly turned out.
  • Hips higher than knees, chest inflated, back straight/arched, head neutral/tilted up.
  • Use hook grip for firmest hold.
  • Grip width: find jump position, bar at thigh-hip groove.
• The Start
  • Static start is best for beginners.
  • Remove slack by tensing body; push feet into the floor.
• The First Pull
  • From floor to above knees.
  • Accelerate bar by extending legs, knees move back, shoulders rise with hips.
  • Arms straight, shoulders retracted in front of bar.
• The Transition Phase
  • Move from first pull to second.
  • Reactive forward movement, rebending of knees.
• Importance of Transition Phase
  • Reduces back tension.
  • Enhances concentric portion by advantageous position.
  • Utilizes stretch-reflex.
• The Second Pull
  • Transition phase end to full extension of knees/hips, plantarflexion of ankles, elevation of shoulders.
  • Peak force, rate of force development, power and bar velocity are at their highest values.

The Clean

• First pull, transition & second pull actions are identical to snatch.
• Receiving the bar and clean catch is different.
• Vertical momentum of bar causes elbows to flex.
• Jump underneath the bar, rotate wrists/elbows forward.
• Bar received in front squat.

Snatch vs. Clean

• Snatches use lower mass, greater velocity, and longer force exertion for speed-strength development.
• Cleans use greater loads for force capacity, requiring forceful decelerations.
• Partial movements teach/focus on lift portions.
• There is no right way to develop the correct technique.

The Jerk

• The jerk involves explosive strength in hip, knee and trunk extensor muscles and resisting/stabilizing against large forces.
• Set Position:
  • Feet hip-width apart, bar on anterior deltoids, elbows high, head up.
  • Alternative: bar across back of neck.
• The Dip:
  • Rapid hip/knee flexion (quarter squat).
  • Trunk upright; weight towards heels.
• The Drive:
  • Explosive triple extension.
  • Shift one foot forward, one back, grasp bar.
• The Receiving Position:
  • Use 'Murray cross' for foot placement.
  • Front foot flat, knee tracking toes; back leg braced.
  • Trunk upright, shoulders square, feet level.
• Recovery to Finish:
  • Step backward with front foot, bring back foot forward, fully extend posture with bar overhead.

Summary:

• Weightlifting movements improve force application, optimize with correct technique using the provided coaching points.