Resistance Band Leg Extension
quadriceps
What moves the load, and what it costs
3.5MET
Quadriceps is the prime mover. A home version. Band tension is highest at lockout, which is exactly where the quadriceps are strongest in this movement.
Cue: Anchor the band behind you at ankle height, loop it around one ankle and straighten the knee against it.
మూలం·2024 Adult Compendium of Physical Activities·FILED UNDER WEIGHTS, 8–15 REPS·జూలై 2026న సమీక్షించాం
SHARED AXIS · SEVEN VALUES FROM ONE TABLE · HIGHLIGHTED ROW IS THIS MOVEMENT
The compendium files resistance band leg extension under a category, not a lift. Read the ladder as position, not precision: this is heavier work than sitting quietly by a factor of 3.5, and middling for conditioning work.
Turning that MET value into a real energy cost
- Map the movement to a published category. The compendium measures categories of conditioning work, never individual lifts, so resistance band leg extension is filed under Resistance training (weight lifting), multiple exercises, 8–15 repetitions at varied resistance.
- Take the category's MET value — 3.5. One MET is the cost of sitting quietly, so this is 3.5 times resting metabolism.
- Multiply by 3.5 to get millilitres of oxygen per kilogram per minute, the unit the MET is actually defined in.
- Multiply by your bodyweight in kilograms and divide by 200. The result is kilocalories per minute of work.
- Count working minutes only. Under load, not under the roof — a set of eight is about 25 seconds of the hour you were there.
kcal/min = MET × 3.5 × body mass (kg) ÷ 200 Resistance Band Leg Extension: 3.5 × 3.5 × 70 ÷ 200 = 4.29 kcal/min
మూలం·ACSM metabolic equation + 2024 Adult Compendium of Physical Activities·REFERENCE BODY MASS 70 KG·జూలై 2026న సమీక్షించాం
What is actually doing the work
| Muscle | Role | What it does here |
|---|---|---|
| QuadricepsRectus femoris and the three vasti | Prime mover | Straightens the knee. Rectus femoris also crosses the hip and flexes it, so it is loaded differently in a squat than in a leg extension. |
The prime mover produces the movement against the resistance; synergists assist and stabilisers hold a joint still without moving it. An exercise trains the whole muscle it loads — there is no way to work only part of a muscle, and no exercise removes fat from the area around it.
Set up, then earn the rep
Resistance band. Every rep should look like the first one. The moment it stops looking like the first one, the set is finished.
PATTERN · ISOLATION
- Set the seat so the knee joint lines up with the machine's pivot and the pad sits on the lower shin, not the ankle bone.
- Sit back into the pad and hold the handles.
- Anchor the band behind you at ankle height, loop it around one ankle and straighten the knee against it.
- Straighten the knees smoothly until the legs are fully extended.
- Pause for a beat at the top with the quads squeezed.
- Lower under control through the full range.
Where this one breaks down
Not theory. These are the faults you correct on a gym floor, and the correction that actually works.
Slamming into full extension.
Smooth is what keeps this comfortable. Extend under control, hold, then lower.
Using the hands and hips to swing the weight.
If the backside lifts off the seat, the weight is too heavy.
Treating it as a knee-strengthening cure-all or as inherently dangerous.
Neither is true. It is a quadriceps isolation exercise, and a good one, used with sensible load and range.
Regress it, or progress it
Regress — earn it first
ఈ సైట్లో దీన్ని ఇంకా సులభతరం చేసేది ఏమీ లేదు: ఇది ఇప్పటికే ఈ పద్ధతిలో ప్రారంభ స్థాయికి దగ్గరగా ఉంది. బరువు తగ్గించండి, కదలిక పరిధిని కుదించండి, లేదా వేగాన్ని తగ్గించండి — ఇదే వరుసలో.
Progress — the next demand
This sits at the top of its progression here. Add load, add range, slow the tempo or go single-limb before you go looking for a new exercise.
Prescription: load, reps, rest
Read off the goal, then hold the technique constant as the load climbs. Derived from the movement's mechanics, not invented for this page: a single-joint movement does its best work in moderate to high reps — very low reps load the joint before the muscle.
| Goal | Sets | Reps | Rest | Notes |
|---|---|---|---|---|
| Strength | 3–4 | 6–10 | 2 min | Single-joint work responds poorly to very low reps — the joint gets the load before the muscle does. |
| Muscle size | 3–4 | 10–15 | 60–90 sec | This is where isolation work earns its place: cheap volume for one muscle, little systemic fatigue. |
| Endurance / fat loss | 2–3 | 15–25 | 30–45 sec | High reps here are genuinely useful — the load is small enough that form survives the fatigue. |
| First month | 2 | 12–15 | 60 సెక | Light. Isolation work is for adding volume later, not for building a base. |
Time under load, in kilocalories
Read these as minutes of work, not minutes in the building. A set of eight takes about twenty-five seconds; the rest of the hour is rest, chalk and queueing.
Mapped category: Resistance training (weight lifting), multiple exercises, 8–15 repetitions at varied resistance — 3.5 MET. That is the published category this movement is filed under, not a measurement of this specific lift.
Worked at 3.5 MET × 3.5 × 70 kg ÷ 200 = 4.29 kcal per working minute for a 70 kg adult. Scale it by your own bodyweight; the equation is linear. The full activity dataset lives at BurnLab.
మూలం·2024 Adult Compendium of Physical Activities·CATEGORY VALUE, NOT A PER-EXERCISE MEASUREMENT·జూలై 2026న సమీక్షించాం
If the rack is taken
Substitutes train the same prime mover through the same pattern with different kit. Computed from the muscle and pattern data on this card, not hand-picked to fill a grid.
చేతిలో ఏమీ లేకపోతే: Bodyweight Squat అత్యంత దగ్గరి ప్రత్యామ్నాయం — అదే ప్రధాన కండరం, అదే పద్ధతి, ఎలాంటి పరికరాలు అవసరం లేదు.
Where it sits in a week
One movement is not a programme. The twelve templates put these in order, including 6 that need no gym at all.
The questions that come up on the floor
What muscles does the resistance band leg extension work?
Resistance Band Leg Extension is a single-joint isolation movement in which the quadriceps is the prime mover. Straightens the knee. Rectus femoris also crosses the hip and flexes it, so it is loaded differently in a squat than in a leg extension.
Is the resistance band leg extension good for beginners?
Yes. It rates 1 out of 5 for technical difficulty on this site — learnable in a single session with no coaching. Start with the lightest sensible load and two or three sets of 12–15.
What can I do instead of the resistance band leg extension at home?
The closest no-equipment substitute is the bodyweight squat, which trains the same prime mover through the same movement pattern. It will not load you as heavily, so use higher reps and slower tempo to make up the difference.
How many sets and reps of the resistance band leg extension should I do?
For muscle size, 3–4 sets of 10–15 with 60–90 sec rest. For strength, 3–4 sets of 6–10 with 2 min rest. In your first month, 2 sets of 12–15, stopping well short of failure. Total weekly hard sets per muscle group matters more than the exact rep number in any of these ranges.
Does the resistance band leg extension burn fat from the quadriceps?
లేదు. ఏ వ్యాయామమూ అది పనిచేయించే ప్రాంతం నుండి కొవ్వును తొలగించదు — స్పాట్ రిడక్షన్ను పలుమార్లు పరీక్షించారు, అది జరగదు. క్వాడ్రిసెప్స్ను శిక్షణ ఇవ్వడం వల్ల కింద ఉన్న కండరం పెరుగుతుంది; శరీర కొవ్వు ఎక్కడి నుండి తగ్గుతుందో మీరు ఎంచుకున్న వ్యాయామం కాదు, మొత్తం క్యాలరీ లోటు మరియు మీ జన్యువులు నిర్ణయిస్తాయి.
Muscle roles follow standard kinesiology references and are described by joint action rather than by gym convention — see how this site is built. Energy figures are derived from the 2024 Adult Compendium of Physical Activities. Every reference is named and dated on the sources page. General information only — not medical or coaching advice. Load, form and progression should be adjusted to your own experience and any injury history. When in doubt, get coached in person.
మూలం·Published exercise references·MUSCLE ROLES ASSIGNED BY JOINT ACTION·జూలై 2026న సమీక్షించాం
The people behind these sites
Follow the build
This site and nine others like it are built and photographed by two people: Amit Sharma — behind the build; Geeta Patel — the poses, demonstrated. New work goes up on Instagram and Facebook before it reaches a page here.
Amit Sharma
@amitsharmaofficial
Instagram
Geeta Patel
@geetapatelnz
Instagram
Geeta Patel
GeetaPatelYoga
Facebook
Following changes nothing here — every page stays open, with no account and no wall.
