Among hamstrings exercises, the Frog Jumps stands out as a squat movement performed with bodyweight. The working muscles contribute to the movement, which is what makes this movement valuable for overall performance in this pattern. What separates this variation from other hamstrings work is that it is with a jumping, ballistic component — a detail that changes which fibres take the load and how much stability the movement demands. The 'Frog Jumps' designation is not cosmetic — it tells you the specific setup and line of pull that separates this from its close relatives. Support comes from the glutes, hamstrings, and calves; the glutes in particular help extend and externally rotate the hip, which is why fatigue there often shows up before the hamstrings is fully worked. Training this with bodyweight needs no equipment at all and can be done virtually anywhere, though it is harder to load progressively once you outgrow it. In a training week, this fits naturally into any session where hamstrings is the priority. The pattern is accessible enough to learn in a single session, which makes it a sound entry point before progressing to heavier or more complex variations.
Muscles Worked
The Frog Jumps is primarily a legs exercise, but it is never only the legs doing the work.
Legs
75%
Glutes
42%
Hamstrings
32%
Calves
22%
Legs (primary) — These fibres contribute to the movement, and they carry the majority of the load in this movement.
Glutes (secondary) — Assists by helping to extend and externally rotate the hip, contributing to hip power, posture and lower-back protection.
Hamstrings (secondary) — Assists by helping to bend the knee and extend the hip, contributing to hip power, sprinting and knee joint balance.
Calves (secondary) — Assists by helping to point the foot downward at the ankle, contributing to ankle stiffness, walking and jumping mechanics.
Benefits of the Frog Jumps
The a jumping, ballistic component increases time under tension without needing heavier load.
Uses bodyweight, which needs no equipment at all and can be done virtually anywhere.
Reinforces the quadriceps, glutes and trunk stabilisers as a coordinated unit rather than as isolated parts.
Builds strength in the hamstrings through a squat pattern, which carries over directly to bending and straightening the knees and hips together.
How to Perform the Frog Jumps
1
Set your starting position and brace your core before the first rep.
2
Break at the hips and knees together, keeping your weight through the midfoot.
3
Descend to a depth you can control with a neutral spine.
4
A good Frog Jumps rep looks identical to the one before it; when it doesn't, the set is done.
5
Drive back up through the floor, keeping the hamstrings working the whole way.
6
Keep every rep at the same tempo — when speed drops noticeably, end the set.
Your Goal General Fitness
Sets
2–3
Reps
10–15
Rest
60s
Breathing Technique
The general rule for the Frog Jumps is simple: inhale and brace at the top, exhale through the ascent. For heavier sets, take a breath in at the start position, brace as though bracing for a punch, and hold that pressure through the hardest part of the rep before exhaling. If your breathing falls apart, it is usually the first sign the set has gone past useful.
Tips for Proper Form
Set your position before the first rep rather than correcting it mid-set.
Keep the range of motion consistent across every rep so you can compare sessions honestly.
Track the knees in line with the toes and keep the mid-foot loaded.
Control the lowering phase — most of the hamstrings stimulus comes from resisting the weight, not lifting it.
Drive through your midfoot, not your toes — that keeps tension in the hamstrings instead of shifting it forward.
The Frog Jumps works best when you treat the hamstrings as the only muscle in the room — if you stop feeling it there, scale the movement back rather than pushing on.
Because there's no external load to hide behind, form is the only variable. Regress the movement before you let it get sloppy.
Common Mistakes to Avoid
Cutting depth to move more weight.
Do this insteadReduce the load and hit a consistent depth — partial reps leave most of the hamstrings untrained.
Letting the glutes and calves take over the Frog Jumps.
Do this insteadIf you feel it everywhere except the hamstrings, reset your position and ease off the difficulty.
Rushing reps because there's no weight to slow you down.
Do this insteadUse a deliberate tempo; without external load, time under tension is your main lever on the hamstrings.
Variations by Experience Level
Beginner
Reduce the load and perform the Frog Jumps for higher repetitions, focusing entirely on position rather than weight. Film one set of the Frog Jumps from the side; it's the fastest way to spot what to fix.
Intermediate
Add a one- to two-second pause at the hardest position of each repetition. Track your Frog Jumps numbers so you can see whether the hamstrings is actually progressing.
Advanced
Progress to a heavier variation of the same pattern once technique is stable at your current load. Small, tracked increases on the Frog Jumps beat occasional maximal efforts.
Safety Considerations
Stop the set when technique degrades — a Frog Jumps rep that no longer looks like your first one is not building anything.
The a jumping, ballistic component increases time under tension, so reduce the load relative to what you would normally handle.
Warm up with lighter sets of the Frog Jumps before your first working set.
The most common way the Frog Jumps goes wrong is knees collapsing inward under fatigue.
Who Should Avoid This Exercise
The Frog Jumps suits most healthy trainees, but it is not appropriate for everyone.
Anyone experiencing sharp, localised or radiating pain during the movement — that is a signal to stop, not to push through.
Anyone with an acute lower-back injury or disc irritation, until cleared to load the spine again.
This is general educational information, not medical advice. If you are managing an injury or medical condition, check with a qualified professional before adding this exercise to your programme.
It primarily trains the legs, with the glutes, hamstrings, and calves assisting. The pattern is classified as squat, so the quadriceps, glutes and trunk stabilisers share the workload.
Is the Frog Jumps suitable for beginners?
Yes. It is rated beginner-level, and the pattern can usually be learned in a single session with light resistance.
How many sets and reps should I do?
A practical starting point is 3 sets of 6-8, resting 2-3 min between sets, roughly 2x per week. Adjust from there based on how you recover.
What equipment do I need for the Frog Jumps?
You need bodyweight. This needs no equipment at all and can be done virtually anywhere, though it is harder to load progressively once you outgrow it.
How do I breathe during the Frog Jumps?
As a general rule, inhale and brace at the top, exhale through the ascent. Avoid holding your breath for the entire set.
What is the most common mistake with the Frog Jumps?
Knees collapsing inward under fatigue. The simplest correction is to track the knees in line with the toes and keep the mid-foot loaded.
What can I do instead of the Frog Jumps?
Good substitutes that train the same hamstrings pattern include Suspension Trainer With Grips Leg Curl, Band Pullthrough, and Hammer Strength Iso-lateral Leg Curl Single Leg. Pick whichever matches the equipment you have available.
How often should I do the Frog Jumps?
About 2x per week suits most people. Recovery, not frequency, is what limits progress.
About Training Your Hamstrings
The Frog Jumps fits into that picture as a beginner option using bodyweight, leaning on the glutes and hamstrings alongside the hamstrings.
The hamstrings run down the back of the thigh and perform two jobs: bending the knee and extending the hip. Strong hamstrings balance the quads, protect the knee, and are essential for sprinting and powerful hip extension.
Train them with two movement types. Knee-flexion work — lying and seated leg curls — targets the hamstrings directly, while hip-hinge movements like the Romanian deadlift, good morning, and Nordic curl load them through a powerful stretch. Combining both builds fuller, more resilient hamstrings than curls alone.
On hinges, push the hips back with a flat back and feel the stretch rather than rounding the spine. A slow lowering phase dramatically increases the training effect.