Badminton Lunge Strength Training: A 4-Week Load Plan

Last checked: August 2026 · Written by the player-led team at Badminton House

A four-week, bodyweight-only progression that builds tolerance to the braking load of a badminton lunge: depth first, then speed, then unplanned direction with a reaction cue. No gym, no machines, just the court and your own bodyweight, two to three sessions a week.

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Why the badminton lunge needs its own strength plan

A badminton lunge is a braking movement, not a lifting movement: you decelerate your whole bodyweight onto one leg while it is still travelling forward, and that leg absorbs a landing force worth roughly one and three-quarters of your bodyweight. General leg strength work does not train that specific braking skill on its own.

The numbers back this up. In a study of 24 amateur players landing forehand and backhand lunges, the second, larger of the two vertical ground-reaction-force peaks during the landing averaged 1.65 times bodyweight for men and 1.75 times bodyweight for women, per a 2025 biomechanics study in PLoS One. A systematic review pooling 21 badminton injury studies put overall injury incidence at roughly 1 to 4 injuries per 1000 hours of play, with lower-body injuries the largest single category in every study reviewed (from 41% up to 92.3%, depending on the sample). Within that review, one study of elite players singled out the lunge as the footwork movement most often linked to lower-body injury, accounting for the largest share of that study's reported mechanisms at 31.6%, according to a 2025 systematic review in BMJ Open Sport & Exercise Medicine.

Badminton leg strength training builds general strength for squatting, jumping and sprinting around the court, and it's a better starting point if you're new to structured training. This plan is narrower on purpose: four weeks aimed only at the lunge's braking demand, staying bodyweight and court-based so you can run it without a gym. It matters most for one specific mistake: players coming back after time off tend to jump straight into full-depth lunges in their first session back, and they pay for it in week one. The same review found injury risk climbs as level of play rises, and a previous injury raises the odds of a repeat one, which is exactly the profile of a player returning to full-intensity lunging too soon.

This plan assumes you can already lunge in a rally without sharp, localised pain; it builds tolerance to a movement you already do; it doesn't diagnose an existing injury. If a specific lunge motion already produces sharp pain rather than normal training fatigue, that's a different problem than this plan solves, and it's worth reading badminton hamstring strain: the deep lunge mechanism before you load the movement further.

The order below follows a standard coaching progression rather than guesswork. BWF's own coach education material states that practices should be built "from simple to complex, slow to fast, predictable to unpredictable," per the BWF Coach Education Level 1 Coaches' Manual. Depth comes first because it's the simplest, slowest variable to control. Speed and unpredictable direction only get added once that base holds under control.

Week 1: build tolerance to depth

Week 1 has one job: teach your front leg to accept load at depth without your knee caving inward or your balance failing, using slow, controlled bodyweight lunges only. Skip speed and direction changes entirely this week, even if lunging already feels easy in a rally.

• Reverse lunge to controlled depth: 3 sets x 8 each leg. Lower over 3 seconds, pause 1 second at your deepest controlled position, stand back up without bouncing off the floor.
• Static split-squat hold: 3 sets x 20-30 seconds each leg, at that same depth, weight spread evenly across the whole front foot rather than rocking onto the toes.
• Short walking lunges: 2 sets x 10 each leg, front foot flat on landing, front knee tracking over the foot rather than collapsing inward.

Warm up before the working sets rather than lunging cold: 2 minutes of ankle circles and leg swings, then 10 bodyweight squats and 5 submaximal reverse lunges at half your working depth. That's enough to raise tissue temperature without pre-fatiguing the legs you're about to load.

Three faults account for most of the trouble in week 1. A front knee that drifts inward on landing usually means the outer hip isn't holding the thigh in line; slow the descent further and focus on pointing the knee at the same spot as the second toe. A front heel that lifts off the floor at depth means you've gone past a depth your ankle can currently control; that's a signal to reduce depth this session rather than push through it. A trunk that pitches forward over the front knee instead of staying stacked over the hips usually means the rear leg isn't sharing the load; keep the back knee tracking down rather than letting the whole body fall forward onto the front leg.

Add depth only once you can complete every set with no wobble and no pain. If any set breaks down, repeat the same depth next session instead of pushing deeper. If your hips or ankles are the limiting factor rather than strength (you feel a hard block, not just fatigue), work through hip and ankle mobility training alongside this week rather than forcing depth against a joint that isn't ready for it.

Week 2: add speed to the same depth

Week 2 keeps the exact depth you built in week 1 and adds speed: you now move into the lunge quickly and stick a firm, quiet landing, training the deceleration itself rather than just the stretched position. Depth does not increase this week.

• Step-in lunge: 4 sets x 6 each leg. Take 2-3 quick steps, then land in the same controlled depth from week 1 and stay still, no continued sinking or second bounce after you land.
• Lateral shuffle into lunge: 3 sets x 6 each leg, shuffling 2-3 steps sideways before decelerating into the lunge, matching the sideways entry a real net or rear-court lunge uses.
• Split reps evenly between directions: forehand and net-side lunges on one side, backhand and rear-corner lunges on the other. The braking demand is not identical in both directions, so both need reps.

Two faults show up most at this stage. Overstriding, where the front foot lands well past a balanced base, trades control for reach and is usually a sign the entry speed has outrun what week 1 actually built; shorten the last step rather than accepting a longer, wobblier one. Decelerating too late, where the body is still travelling forward well after the front foot lands, shows up as a forward stumble out of the lunge; the fix is to start braking earlier in the last step; landing softer alone won't cover it.

Progress the speed of entry, not the depth. If the landing wobbles or the knee caves at a faster entry, drop back to the previous session's speed for one more session before pushing again. Move to week 3 once you can land 8 of 10 reps quiet and controlled, in both directions, across a full session.

Week 3: add unplanned direction with a reaction cue

Week 3 adds unpredictability: instead of lunging on your own timing, you react to an external cue (a partner's call, a dropped shuttle, a random signal on a phone timer) and lunge toward whichever direction it points, matching the split-second decisions a real rally demands.

• Reactive direction lunge: stand ready at center court. A partner (or a random cue) calls one of three or four directions, forehand net, backhand net, forehand rear, backhand rear, right as you start moving. React and lunge to whichever is called. 4-5 sets x 6-8 reps, 60-90 seconds rest between sets so quality doesn't slip from accumulated fatigue this week.
• Keep depth and entry speed unchanged from weeks 1 and 2. Only the timing and the unpredictability of the cue should feel new.

No training partner is not a reason to skip this week. A phone timer app that calls a random side or number, a shuttle you drop yourself from behind your back without looking, or a training video with unpredictable footwork calls all work the same reaction-then-lunge sequence. What matters is that you don't know the direction until the instant you have to move, not who or what delivers the cue.

Progress by shortening the gap between the cue and when you have to be moving; extra reps alone won't get you there. Move to week 4 once you react to the correct direction and land under control (same quality bar as week 2) on at least 80% of reps across a full session.

Week 4: consolidate under fatigue

Week 4 combines depth, speed and reaction into short, repeated bursts that mimic rally-length fatigue, then checks whether your lunge technique holds up once you're tired, since a fatigued lunge tends to land shallower and stiffer, not deeper.

• Combined bursts: reactive lunges as in week 3, performed continuously for 30-45 seconds, 3-4 rounds, 60-90 seconds rest between rounds, directions mixed randomly within each burst.
• Mid-burst and end-of-burst self-check: is your front knee still reaching the same depth as week 1, or has it started landing shallow and stiff?

That self-check matters because of what actually happens to a fatigued lunge. In a study of twelve male collegiate badminton players, a repeated-lunge fatigue protocol reduced hip flexion angle at initial contact from 46.1 to 42.2 degrees and reduced peak knee flexion from 69.5 to 62.5 degrees, per a 2023 study in Bioengineering. Fatigue does not make players lunge deeper and looser: it makes the lunge shallower and stiffer, which is exactly when the injury-risk mechanisms described above are most active. If depth and control collapse noticeably by round 3 or 4, keep repeating week 4 rather than adding plyometric or match volume on top of it.

Ordinary training fatigue in this plan feels like heavy, tired legs and a lunge that gets harder to hold clean as a session goes on. That's expected and it's what week 4 is for. Sharp, localised pain (behind the thigh, in the front of the knee, or deep in the hip) is not expected at any stage, and it's a reason to stop the session rather than push through it, then reassess before your next one rather than trying to train around it.

Keep the log simple: date, which week, the depth or cue setting you used, and how many reps stayed clean. Four weeks of a two-line note per session is enough to see whether you're actually progressing or quietly repeating the same session under a different label.

If you're returning to this plan after two or more weeks away from the court, restart at week 1 regardless of how far you'd progressed before. The fatigue data above is the reason why: technique breaks down before raw strength does, and a layoff erodes the control this plan is built to protect first.