What muscles do goblet squats and lunges work?

The quads lead both, with the glutes and hamstrings assisting and the abs and upper back holding you upright against the bell at your chest. The lunge half adds a balance demand the squat does not have, because you are on one leg for part of every rep.

How far should you step forward in a lunge?

Far enough that you can lower straight down with your front shin close to upright and your weight settled over the middle of that foot. Roughly twice the width of your hips is the usual starting point. A step that is too short pushes your weight onto the front of your foot with nowhere to sit back into.

Which is better, forward or reverse lunges?

Reverse if you are starting out or your knees are unhappy, because there is no step to stop and the knee load ranks lower. Forward once you are comfortable, because controlling the step out is a real skill. Neither replaces the other.

Should you do the squats and lunges together like this?

Only if you want a short block that works your legs and your breathing at once. Both halves are quad exercises, so the lunges are always done on tired legs and the weight has to be light enough for the harder half. Run them as separate exercises if getting stronger is the goal.

Why do I wobble on one side more than the other?

Most people are steadier and stronger on one leg, and alternating movements are the first place it shows. Match the reps on both sides at the weight the wobblier side can control. It usually evens out with practice and nothing needs diagnosing.

Back to the library

Kettlebell · intermediate · upper legs

Kettlebell goblet squat to front lunges

Also called Goblet squat lunge combo, Kettlebell squat to lunge, Goblet squat with alternating lunges, Goblet squat to forward lunge.

The short answer

You hold one kettlebell at your chest, squat, stand, then step forward into a lunge and alternate legs. The quads lead both halves, the glutes and hamstrings assist, and the bell at your chest keeps your torso upright and gives your midsection something to hold against. The forward lunge is the harder half, because stepping out means stopping your own body weight on one leg, and that is the part most people get wrong.

How to do it

Step oneStand with feet shoulder-width apart holding a kettlebell in a goblet grip at your chest.
Step twoLower into a goblet squat until your thighs are parallel to the ground.
Step threeReturn to standing, then step one foot forward into a lunge.
Step fourLower your back knee toward the ground, then return to standing.
Step fiveAlternate legs with each lunge.

What usually goes wrong

Each starts with what you would notice.

You land the step with a thud and feel the impact in your front knee.

WhyYou are stepping out and letting your weight arrive, so the front leg has to catch you rather than lower you. Everything you did not control on the way out gets absorbed at the knee.

FixStep out and place the foot, then lower. Two separate things. If the step is loud, it is too fast, and slowing it down is worth more than any cue about knee position.

Your back knee ends up behind your hip and you feel stretched across the front of that thigh.

WhyThe step forward has pulled you into a longer split than you intended, or your hips have drifted forward over the front foot.

FixKeep your hips stacked between your feet and lower the back knee straight down toward the floor rather than letting it trail. Your torso should stay vertical the whole way.

You wobble sideways every rep, especially on one leg.

WhyBoth feet are landing on the same line, as if walking a tightrope. That leaves you no side-to-side base to balance on.

FixStep forward and slightly across to your own side, so your feet stay about hip width apart from left to right. The lunge is two feet on two rails, not one.

It feels like your back leg is doing the standing up.

WhyYou are pushing off the toes of the rear foot to get back up, which is the easiest way to do it and moves the work off the leg the exercise is aimed at.

FixDrive through the front heel and let the back foot be a kickstand. Whichever foot pushes is the leg getting trained, so decide which one that is on purpose.

Forward lunge or reverse lunge

Same finish position, opposite entry, and a genuine difference in what each asks of you. Stepping forward means starting your body weight moving and then stopping it on one leg. Stepping backward means the front foot never leaves the floor, so there is nothing to arrest.

That is why coaches order these the way they do. When lunge variations have been ranked by how much they ask of the knee, the reverse lunge sits at the gentle end, the forward lunge above it and the single-leg squat above that. The reverse version has also been reported to produce good muscle activity with relatively little shearing at the knee, and one small study found more activity in the muscles running alongside the spine during backward lunges than forward ones, put down to landing toe-first without being able to see where you are going.

If lunges are new, or your knees complain, step backward. If you are comfortable and want the step you have to control, step forward. The demonstration on this page is the forward one, and it is a step up from the reverse, not a substitute for it.

On lunges being bad for your knees

This gets repeated so often that people avoid the movement entirely, and it misreads what the research says. Nothing in the literature calls the lunge harmful. What exists is an ordering, by how much load each variation puts through the knee, and a modelled estimate that during a forward lunge the peak torque at the knee tracks with the stress at the kneecap. That is a reason to sequence lunges, not to skip them.

The useful reframing is that a knee gets stronger by being loaded through range, and single-leg work is one of the few ways to load one at a time. Starting at the reverse lunge and moving up is the answer, not avoidance.

What this page cannot tell you is whether your particular knee is happy. Soreness that fades is training. If something hurts and keeps hurting, that is a question for a physiotherapist.

What it is for

The kettlebell goblet squat to front lunges combines a goblet squat with alternating forward lunges to target the quadriceps and glutes. The goblet grip encourages an upright torso and engages the core throughout both movements.

Questions people ask

What muscles do goblet squats and lunges work?: The quads lead both, with the glutes and hamstrings assisting and the abs and upper back holding you upright against the bell at your chest. The lunge half adds a balance demand the squat does not have, because you are on one leg for part of every rep.
How far should you step forward in a lunge?: Far enough that you can lower straight down with your front shin close to upright and your weight settled over the middle of that foot. Roughly twice the width of your hips is the usual starting point. A step that is too short pushes your weight onto the front of your foot with nowhere to sit back into.
Which is better, forward or reverse lunges?: Reverse if you are starting out or your knees are unhappy, because there is no step to stop and the knee load ranks lower. Forward once you are comfortable, because controlling the step out is a real skill. Neither replaces the other.
Should you do the squats and lunges together like this?: Only if you want a short block that works your legs and your breathing at once. Both halves are quad exercises, so the lunges are always done on tired legs and the weight has to be light enough for the harder half. Run them as separate exercises if getting stronger is the goal.
Why do I wobble on one side more than the other?: Most people are steadier and stronger on one leg, and alternating movements are the first place it shows. Match the reps on both sides at the weight the wobblier side can control. It usually evens out with practice and nothing needs diagnosing.