Using Video Analysis for IM Stroke Improvement: A Comprehensive Guide for Competitive Swimmers
- SG Sink Or Swim

- Jul 14
- 12 min read

The Individual Medley (IM) is the ultimate test of a swimmer's versatility. It demands proficiency in all four competitive strokes—butterfly, backstroke, breaststroke, and freestyle—plus mastery of three different turns and the ability to transition seamlessly between contrasting techniques.
But here's the challenge: what you feel you're doing in the water often differs dramatically from what you're actually doing. You might feel like your butterfly catch is strong, but video reveals a dropped elbow. You might think your breaststroke kick is symmetrical, but footage shows one leg leading. You might believe your backstroke rotation is smooth, but analysis reveals over-rotation that wastes energy.
This is where video analysis becomes transformative for IM swimmers.
By capturing objective visual data, you can identify hidden inefficiencies across all four strokes, track progress precisely, and make targeted adjustments that translate to faster times and more efficient racing. For competitive swimmers in Singapore—whether training for MOE Games, National Age Group Championships (NAGS), or personal bests—video analysis is no longer a luxury reserved for elite athletes. It's an accessible tool that can accelerate your IM development.
This guide explains how to use video analysis to improve your IM performance, covering tools, techniques, stroke-specific analysis, and practical implementation strategies.
🎥 Why Video Analysis Is Essential for IM Swimmers
IM swimming requires mastering four distinct techniques, each with unique mechanics. Video analysis addresses the specific challenges IM swimmers face.
Benefits of Video Analysis for IM
Benefit | Explanation | IM-Specific Impact |
Objective Feedback Across Strokes | Removes guesswork and subjective "feel" for each stroke. | Identifies which stroke is your weakest link and why. |
Transition Analysis | Captures the critical moments between strokes. | Reveals inefficiencies in stroke transitions that cost precious time. |
Turn Comparison | Shows technique for all three turn types (fly/back, back/breast, breast/free). | Identifies which turn needs work and why. |
Progress Tracking | Provides measurable benchmarks over time. | Shows whether technique changes are actually improving efficiency across all strokes. |
Asymmetry Detection | Reveals imbalances that may not be visible in real-time. | Prevents injury and improves efficiency in strokes requiring bilateral symmetry. |
💡 Key Insight: IM swimmers often have one or two strong strokes and one or two weak ones. Video analysis reveals exactly where to focus your training for maximum time improvement.
🔍 Types of Video Analysis: Tools for Every IM Swimmer
You don't need a Hollywood studio to analyze your IM technique. Choose the method that fits your goals, budget, and access.
1. Smartphone Video Analysis (Most Accessible)
How it works: Record your swim from multiple angles using your phone, then review in slow motion.
Angle | What It Reveals for IM | How to Capture |
Side View (Above Water) | Body position, rotation, breathing timing across all strokes. | Place phone on tripod at pool edge, level with water surface. |
Side View (Underwater) | Catch phase, pull path, kick mechanics, streamline off walls. | Use waterproof case; check pool rules first. |
Front View | Hand entry width, head stability, symmetry (especially breaststroke). | Film from end of lane looking down the length. |
Back View | Hip rotation, kick consistency, recovery path (especially backstroke). | Film from behind as you swim away. |
Overhead (if possible) | Overall body alignment, stroke symmetry. | Use elevated position or drone (with permission). |
Best for: Visual learners; identifying gross mechanical flaws; sharing with coaches remotely; comparing strokes side-by-side.
Singapore Tip: Many ActiveSG complexes restrict photography due to PDPA. Always ask permission, angle your camera to exclude others, and use off-peak hours for privacy.
2. Wearable Technology with Video Integration (Data-Driven)
How it works: Smart goggles or cameras that record from the swimmer's perspective.
Device | Key Features | IM Application |
FORM Smart Goggles | Records from swimmer's POV; displays metrics in real-time. | See your own stroke from your perspective; compare what you feel vs. what happens. |
GoPro (Waterproof) | Mountable on lane rope or pool deck. | Capture underwater perspectives; record full IM sets. |
SwimCam Systems | Dedicated underwater cameras. | Professional-grade analysis of turns and underwater phases. |
Best for: First-person perspective; capturing underwater phases; real-time feedback.
Singapore Availability: FORM goggles and GoPro available at Challenger, Courts, or online (Shopee/Lazada).
3. Coach-Led Video Analysis (Expert Eyes)
How it works: A qualified instructor records and analyzes your swim with expert interpretation.
Feedback Type | What It Adds | When to Use |
Multi-Angle Recording | Professional setup capturing all critical views. | Comprehensive IM analysis; pre-competition tune-up. |
Frame-by-Frame Breakdown | Slow-motion analysis of critical moments. | Identifying subtle technical flaws. |
Comparative Analysis | Side-by-side comparison with elite swimmers. | Understanding ideal technique for each stroke. |
Integrated Training Plan | Video insights translated into specific drills. | Long-term IM development. |
Best for: Personalized guidance; integrating analysis into broader training plan; competitive swimmers.
Singapore Resources: Many private coaches and ActiveSG squad leaders offer video analysis packages. Ask about "IM-specific" or "multi-stroke" analysis sessions.
4. Self-Assessment Apps (DIY Analysis)
How it works: Apps that help you analyze your own video with built-in tools.
App | Features | IM Benefit |
Dartfish Video | Slow-motion, drawing tools, side-by-side comparison. | Compare your strokes to ideal models. |
Coach's Eye | Annotation, voiceover, sharing capabilities. | Share with coach for remote feedback. |
SwimVideo Analyzer | Stroke counting, timing, basic metrics. | Track progress across sessions. |
Best for: Budget-conscious swimmers; self-motivated learners; tracking progress over time.
💡 Pro Tip: Combine methods. Use smartphone video for regular check-ins, wearable tech for underwater insights, and coach analysis for comprehensive reviews every 4–8 weeks.
🏊 Key IM Elements to Analyze: Stroke-by-Stroke Breakdown
Break down each stroke systematically. Analyze these specific elements for maximum improvement.
BUTTERFLY Analysis
Element | What to Look For | Common Flaws | Correction Cues |
Body Position | Head alignment, hip height, body undulation. | Head lifting, hips sinking, over-arching back. | "Press chest down, lead with head." |
Arm Entry | Hand position, width, angle. | Crossing midline, entering too wide/narrow. | "Enter outside shoulders, thumbs first." |
Catch & Pull | Early vertical forearm, pull path. | Straight-arm pull, wide sweep. | "Bend elbow early, pull under body." |
Recovery | Arm path, relaxation. | Stiff arms, splashing entry. | "Relaxed recovery, pinky enters first." |
Kick Timing | Two kicks per cycle, hip-driven. | One kick, knee-driven, mistimed. | "Kick on entry and exit, from hips." |
Breathing | Head position, timing. | Lifting too high, breathing late. | "Chin skim, breathe early in pull." |
BACKSTROKE Analysis
Element | What to Look For | Common Flaws | Correction Cues |
Body Position | Head stability, hip height, rotation. | Head wobbling, hips sinking, over-rotating. | "Head still, water at ears, 30-45° rotation." |
Arm Entry | Hand position, pinky-first entry. | Thumb-first, crossing midline. | "Pinky enters first, outside shoulder." |
Catch & Pull | Early vertical forearm, pull depth. | Straight-arm pull, shallow pull. | "Bend elbow, pull deep to hip." |
Recovery | Straight arm, thumb position. | Bent elbow, thumb down. | "Straight arm, thumb up/out." |
Kick | Hip-driven, continuous, small amplitude. | Bicycle kick, stopping, too deep. | "Kick from hips, small and fast." |
Turn Approach | Stroke count from flags, body position. | Miscounting, slowing down. | "Count strokes, maintain speed." |
BREASTSTROKE Analysis
Element | What to Look For | Common Flaws | Correction Cues |
Body Position | Streamline, hip height, glide. | Hips sinking, no glide, over-gliding. | "Long streamline, hips high, glide 1-2 sec." |
Pull | Hand path, width, acceleration. | Wide pull, no acceleration, pulling to chest. | "Narrow pull, accelerate to hips." |
Kick | Symmetry, whip motion, timing. | Asymmetric kick, frog kick, mistimed. | "Whip kick, squeeze together, symmetrical." |
Timing | Pull-breathe-kick-glide sequence. | Simultaneous pull/kick, no glide. | "Pull-breathe, kick-glide, sequential." |
Breathing | Head position, timing. | Lifting too high, breathing late. | "Chin forward, breathe during pull." |
Turn | Simultaneous touch, quick pivot. | One-hand touch, slow pivot. | "Two-hand touch, tuck and turn fast." |
FREESTYLE Analysis
Element | What to Look For | Common Flaws | Correction Cues |
Body Position | Head alignment, hip height, rotation. | Head lifting, hips sinking, flat swimming. | "Head down, hips up, rotate 30-45°." |
Arm Entry | Hand position, extension. | Crossing midline, short entry. | "Enter outside shoulder, extend fully." |
Catch & Pull | Early vertical forearm, pull path. | Dropped elbow, straight-arm pull. | "High elbow catch, pull under body." |
Recovery | Relaxed, high elbow. | Stiff arm, low elbow, splashing. | "Relaxed recovery, elbow high." |
Kick | Hip-driven, continuous, small amplitude. | Bicycle kick, stopping, too deep. | "Kick from hips, small and fast." |
Breathing | Head rotation, timing, bilateral. | Lifting head, one-side breathing. | "Rotate with body, breathe every 3." |
TRANSITIONS & TURNS Analysis
Element | What to Look For | Common Flaws | Correction Cues |
Fly to Back Turn | Open turn, rotation to back, push-off. | Slow rotation, poor streamline. | "Touch, pivot fast, push on back." |
Back to Breast Turn | One-hand touch, rotation to breast, push-off. | Two-hand touch (DQ), slow pivot. | "One-hand touch, pivot to breast fast." |
Breast to Free Turn | Two-hand touch, pivot, push-off. | One-hand touch, slow pivot. | "Two-hand touch, pivot fast, push free." |
Underwater Phases | Streamline tightness, kick/dolphin count. | Loose streamline, too few/many kicks. | "Tight streamline, max legal kicks." |
Stroke Transitions | Rhythm change, body position adjustment. | Abrupt change, loss of momentum. | "Smooth transition, maintain speed." |
🛠️ How to Conduct an IM Video Analysis Session: Step-by-Step
Step 1: Prepare Your Tools
Video: Charge phone; bring tripod/waterproof case; check pool rules.
Angles: Plan to capture all four strokes + turns from multiple angles.
Lighting: Choose times with good lighting (avoid glare on water).
Permissions: Confirm pool allows recording; ensure PDPA compliance.
Step 2: Warm Up Properly
Swim 400–800m easy to establish natural stroke patterns.
Include drills for each stroke.
Avoid "performing" for the camera—swim as you normally would.
Step 3: Capture Your IM Swim
Option A: Full IM Set
Record 100m or 200m IM at race pace or training pace.
Capture from side (above and below), front, and back if possible.
Record at least 2–3 lengths for each stroke.
Option B: Stroke-by-Stroke Analysis
Record 50m of each stroke individually.
Allows focused analysis of each technique.
Easier to capture multiple angles.
Option C: Turn-Focused Analysis
Record approaches and executions of all three IM turns.
Critical for identifying time losses.
Step 4: Review and Analyze
Slow Motion: Watch at 0.25x or 0.5x speed to see details.
Frame-by-Frame: Pause at critical moments (entry, catch, finish, turn).
Compare Strokes: Look for consistency vs. variation across strokes.
Note Patterns: Identify recurring flaws across multiple strokes.
Step 5: Create an Action Plan
Identify one priority flaw per stroke (don't fix everything at once).
Choose one drill per stroke to target that flaw.
Set measurable goals (e.g., "Reduce stroke count by 2 per 25m in fly").
Schedule follow-up analysis in 2–4 weeks to track progress.
💡 Singapore Tip: Many ActiveSG complexes have quiet corners for tripod setup. Use off-peak hours (10am–3pm weekdays) for uninterrupted recording.
🚫 Common IM Flaws Video Analysis Reveals (and How to Fix Them)
Flaw | How Video Reveals It | Correction Strategy |
Asymmetric Breaststroke Kick | Front-view video shows one leg leading or wider kick. | Kick drills with pull buoy between legs; focus on symmetry. |
Butterfly Cross-Over Entry | Front-view shows hands entering over head center. | Practice with lane rope as guide; enter outside shoulder. |
Backstroke Over-Rotation | Back-view shows shoulders rolling >60 degrees. | 6-kick switch drill; focus on 30–45 degree rotation. |
Freestyle Dropped Elbow | Underwater video shows straight-arm pull. | Fist drill; sculling; focus on early vertical forearm. |
Slow IM Transitions | Video shows deceleration between strokes. | Practice transition drills; maintain kick through transition. |
Poor Turn Execution | Video shows slow pivot or loose streamline. | Turn repetition drills; focus on tight tuck and explosive push. |
Inconsistent Breathing | Side-view shows head lifting or late breath. | Snorkel drills; practice bilateral breathing. |
Weak Underwater Phases | Video shows short underwater distance or loose streamline. | Underwater kick sets; streamline drills off walls. |
🇸 Singapore-Specific Analysis Considerations
Pool Selection for Effective IM Analysis
Pool Type | Best For | Singapore Examples |
50m Pools | Capturing full IM sets; fewer turns interrupting analysis. | OCBC Aquatic Centre, Bedok, Jurong East, Singapore Sports Hub. |
25m Pools | Turn analysis; shorter sets for focused review. | Most ActiveSG complexes (Bishan, Toa Payoh, Queenstown). |
Quiet Lanes | Uninterrupted recording; minimal background distraction. | Off-peak hours (10am–3pm weekdays); request "technique lane" if available. |
Underwater-Friendly | Capturing catch and kick mechanics below surface. | Check pool policy first; some allow underwater filming with permission. |
PDPA and Privacy Guidelines
Singapore's Personal Data Protection Act (PDPA) restricts photography in public spaces.
✅ Do:
Ask pool management permission before setting up equipment.
Angle your camera to exclude other swimmers.
Use a tripod in a fixed position (not handheld, which may capture bystanders).
Delete footage of others immediately if accidentally recorded.
Inform swimmers in your lane that you're recording for personal analysis.
❌ Don't:
Film in crowded lanes during peak hours.
Share footage publicly without blurring other swimmers.
Assume "it's just for personal use" exempts you from PDPA.
💡 Pro Tip: Many private academies and condo pools have more flexible policies for analysis. Inquire when booking.
Climate and Environmental Factors
Humidity: Can fog goggles or affect electronic devices. Use anti-fog treatment; keep devices in waterproof cases.
Outdoor Pools: Wind may affect audio recording; sun glare can wash out video. Shoot in early morning or late afternoon for best light.
Water Clarity: Reservoir or outdoor pool water may be murky, limiting underwater video quality. Use above-water angles as primary analysis.
Equipment Access in Singapore
Tool | Where to Buy/Rent | Estimated Cost (SGD) |
Waterproof Phone Case | Decathlon, Shopee, Lazada | $15–$40 |
Small Tripod/Gorillapod | Decathlon, Challenger, online | $20–$60 |
FORM Smart Goggles | Specialty tri shops, online | $200–$300 |
GoPro Hero | Challenger, Courts, Gain City | $400–$700+ |
Coach Video Analysis | Private coaches, some ActiveSG squads | $80–$200/session |
Dartfish/Coach's Eye Apps | App Store/Google Play | Free–$50 |
💡 Budget Tip: Start with smartphone video + free apps. Upgrade tools as your analysis needs grow.
📊 Creating an Action Plan from IM Analysis Findings
Analysis is useless without action. Translate insights into targeted training.
Sample IM Action Plan Template
Stroke | Priority Flaw | Targeted Drill | Frequency | Success Metric | Follow-Up Analysis |
Butterfly | Crossed midline entry | Lane rope drill: enter outside rope | 2x/week | Hand enters outside shoulder in 8/10 strokes | Video review in 2 weeks |
Backstroke | Over-rotation | 6-kick switch drill | 3x/week | Rotation 30-45° in back-view video | Coach feedback in 3 weeks |
Breaststroke | Asymmetric kick | Kick with pull buoy between legs | Every swim | Symmetrical kick in front-view video | Self-assessment weekly |
Freestyle | Dropped elbow catch | Fist drill + sculling | 2x/week | High elbow in underwater video | Video review in 2 weeks |
Turns | Slow back-to-breast pivot | Turn repetition drills | 2x/week | Pivot <1 second in video | Video review in 2 weeks |
Integrating IM Analysis into Weekly Training
Day | Focus | Analysis Component |
Monday | Butterfly Technique | Self-assessment: focus on entry width |
Tuesday | Backstroke Endurance | Wearable tech: track rotation consistency |
Wednesday | Rest or Dryland | Review video from Monday; plan Thursday's focus |
Thursday | Breaststroke Intervals | Coach feedback or peer video review post-session |
Friday | Rest | Journal reflections; adjust cues for weekend |
Saturday | IM Sets | Wearable tech: monitor transition efficiency |
Sunday | Recovery Swim | Self-assessment: note which cues felt most effective |
💡 Key Principle: Analysis should inform training, not replace it. Spend 80% of your time swimming; 20% analyzing and planning.
📈 Tracking IM Progress: Metrics That Matter
Don't just collect data—use it to measure improvement across all four strokes.
Quantitative Metrics (Wearables/Video)
Metric | How to Track | Target Improvement |
Split Times by Stroke | Clock each 50m of IM separately. | Reduce variance between strokes; improve weakest stroke. |
Stroke Count per 25m (each stroke) | Count manually or via watch. | Decrease while maintaining or improving pace. |
Turn Times | Time from wall touch to push-off. | Reduce by 0.1–0.3 seconds per turn. |
Underwater Distance | Measure distance off each wall. | Increase to legal limit (15m) consistently. |
Transition Time | Time between stroke changes. | Reduce hesitation; maintain momentum. |
Qualitative Metrics (Video/Self-Assessment)
Metric | How to Track | Target Improvement |
Stroke Symmetry | Front-view video comparison. | More symmetrical kick/pull in breaststroke. |
Body Position | Side-view video comparison. | Hips higher; less drag across all strokes. |
Turn Efficiency | Turn video review. | Smoother, faster pivots; tighter streamlines. |
Overall Rhythm | Full IM video review. | Smoother transitions; consistent tempo. |
📱 Digital Tools: Apps like Swim.com, MySwimPro, or Garmin Connect can track IM-specific metrics. Use them to visualize trends over time.
🧠 Mental Strategies for Effective IM Analysis
IM analysis can feel overwhelming with four strokes to evaluate. These mindset shifts keep it productive.
Frame Analysis as Discovery, Not Judgment
❌ "My breaststroke is terrible."
✅ "I'm learning how my breaststroke works so I can improve it."
Focus on One Stroke at a Time
❌ Trying to fix all four strokes simultaneously.
✅ Choosing one priority stroke per 2–4 week cycle.
Celebrate Small Wins
❌ "I'm still not perfect."
✅ "My butterfly entry is 10% wider this week—that's progress!"
Use Analysis to Build Confidence
❌ Fixating on flaws.
✅ Noticing improvements: "Look how much smoother my backstroke rotation is now!"
💡 Pro Tip: Keep a "Win Wall"—a physical or digital space where you post positive analysis findings for each stroke. Review it when motivation dips.
🏁 Conclusion: See Your IM, Transform Your Performance
Video analysis transforms IM swimming from a mystery into a measurable, improvable skill. Whether you use smartphone video, wearable tech, coach expertise, or mindful self-assessment, the goal is the same: see what's really happening across all four strokes, then act on what you see.
In Singapore, where pool access is excellent and competitive opportunities abound, video analysis gives IM swimmers an edge. It turns subjective "I think I'm improving" into objective "I know I'm improving."
Remember:
Start simple: A phone and tripod can reveal more than you expect.
Focus on one stroke at a time: Don't overhaul your entire IM at once.
Track progress: Metrics motivate; trends reveal what's working.
Be patient: Technique changes take weeks to embed; trust the process.
Whether you're chasing a national qualifying time, preparing for a triathlon, or simply wanting to swim IM with less effort, video analysis is your pathway to a smoother, stronger, more efficient performance.
Next time you dive in, don't just swim—observe. Don't just feel—measure. And watch your IM transform.
✅ Quick-Reference Checklist: Video Analysis for IM
Before You Analyze
Choose your method: smartphone, wearable tech, coach, or app.
Check pool rules (especially for photography/PDPA compliance).
Warm up properly to establish natural stroke patterns.
Set a clear focus: "Today I'm analyzing breaststroke kick" vs. "fix everything."
During Analysis
Capture multiple angles if possible (side above, side below, front, back).
Swim naturally—don't "perform" for the camera.
Record all four strokes + transitions if doing full IM analysis.
Note subjective sensations alongside objective data.
After Analysis
Identify ONE priority flaw per stroke to address first.
Choose ONE targeted drill per stroke to correct that flaw.
Set a measurable goal and timeline for improvement.
Schedule follow-up analysis in 2–4 weeks.
Tracking Progress
Log quantitative metrics (split times, stroke count, turn times).
Note qualitative improvements (video comparisons, coach feedback).
Celebrate small wins to maintain motivation.
Adjust your plan based on what's working.
Mindset Matters
Frame analysis as discovery, not criticism.
Focus on progress, not perfection.
Trust the process: technique changes take time to embed.
Use data to build confidence, not doubt.





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