FIXIT is an AI-powered health and fitness tracking app. Log workouts, nutrition, water, and body metrics, analyze your exercise form with AI pose detection, and visualize your progress over time — all in one place.

How does AI form analysis work?

FIXIT uses AI pose detection (TensorFlow MoveNet) to track 17 body keypoints from your camera. It analyzes joint angles, posture, and movement to score your form and flag issues like knee cave or forward lean — instant feedback, no coach required.

What can I track in FIXIT?

Workouts and exercises, food and calories, water intake, body-composition metrics (weight, body fat, InBody results), pain, and progress charts — with 100+ guided exercises.

How much does FIXIT cost?

FIXIT is free to start with core tracking. Basic is $7/month (full exercise library, unlimited sessions, progress charts) and Pro is $15/month (AI form scoring, video recording, 3D visualizations, and programs).

Is my health data private?

Yes. Your health data is stored securely and never sold. You control your account and can export or delete your data at any time.

🦵 Straight Leg Raise

The Straight Leg Raise is a beginner knee exercise that targets the quadriceps and hip flexors. Strengthen your quad without bending your knee. Keep your leg straight as you lift it off the surface. It's commonly prescribed during rehabilitation for ACL Reconstruction, Patellofemoral Pain, Total Knee Replacement, and Meniscus Repair. Below is how to perform the Straight Leg Raise with correct form, plus the benefits, common mistakes, and how many reps to aim for.

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Benefits of the Straight Leg Raise

Strengthens and activates the quadriceps and hip flexors
Improves strength
Supports recovery and rehab for ACL Reconstruction, Patellofemoral Pain, Total Knee Replacement, and Meniscus Repair
Can be done at home with no equipment
Performed supine, so it's easy to set up

How to do the Straight Leg Raise

Lie on your back with the uninjured knee bent, foot flat
Keep the injured leg straight
Tighten your quad first (do a quad set)
Slowly lift the straight leg to the height of the opposite knee
Hold for 3 seconds at the top
Slowly lower back down

How many reps & sets

A common starting point is 3 sets of 10 reps, holding each for about 3 seconds. Progress gradually and stop if you feel sharp pain.

Form tips

Lock your knee fully before lifting
Don't let your leg rotate outward
Control the lowering — don't drop

Muscles worked

Quadriceps, Hip flexors

When to be cautious

Cannot achieve full extension first

Who should do the Straight Leg Raise?

The Straight Leg Raise is often included in programs for people recovering from ACL Reconstruction, Patellofemoral Pain, Total Knee Replacement, and Meniscus Repair, and for anyone wanting to strengthen the knee. It's rated beginner.

Straight Leg Raise — FAQ

What muscles does the Straight Leg Raise work?

The Straight Leg Raise primarily targets the quadriceps and hip flexors.

How many sets and reps of the Straight Leg Raise should I do?

A common starting point is 3 sets of 10 reps, holding each for about 3 seconds. Progress gradually and stop if you feel sharp pain.

Is the Straight Leg Raise good for ACL Reconstruction?

Yes — the Straight Leg Raise is commonly used in rehab for ACL Reconstruction and Patellofemoral Pain. Confirm with your clinician before starting, especially if you have pain.

Do I need equipment for the Straight Leg Raise?

No — the Straight Leg Raise needs no equipment and can be done at home.

When should I avoid the Straight Leg Raise?

Take care or skip it if you have: cannot achieve full extension first. When in doubt, check with your physiotherapist.

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Related Knee exercises

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