Exercise & Strength

With movement, not weight. Every strong athlete is built on four basic patterns — hinge, squat, push, and pull — and learning to do those well with your own bodyweight comes before you ever touch a heavy barbell. Nail the pattern first, add load second. You don't need to feel wrecked to know it worked; you need to move well and come back and do it again.

Hinge (like a deadlift — bending at the hips to pick something up), squat (sitting down and standing back up), push (pressing something away, like a push-up or overhead press), and pull (rowing or pulling something toward you, like a pull-up). Almost every exercise and almost every athletic action is a version of these four. Get strong and coordinated in all four and you've covered the whole body — no fancy machines required.

It's the single most important principle in strength training: to keep getting stronger, you have to gradually ask your body to do a little more over time — more weight, more reps, or better control. Without it, you plateau; with it, you keep adapting. It doesn't mean adding weight every session — it means trending upward over weeks and months. Post-menarche especially, progressive overload becomes both more productive and more important, because your body can now build real strength.

Fewer than you'd think — and more isn't automatically better. A 2025 meta-analysis of female adolescent team-sport athletes found that longer programs with fewer sessions per week (around twice a week, over 10+ weeks) actually produced better strength and power gains than cramming in more frequent sessions. For a population that's already over-scheduled and under-recovered, two focused, consistent sessions beat five rushed ones. Consistency over months is what moves the needle.

Consistency, and it isn't close. The athletes who make the most progress aren't the ones who go hardest on any single day — they're the ones who keep showing up week after week while their body adapts. Intensity you can't recover from or repeat isn't training, it's just tiredness. Show up twice a week for a year and you'll pass the person who trained like a maniac for three weeks and quit.

A good warm-up isn't stretching and standing around — it's a few minutes of raising your heart rate and moving through the patterns you're about to train, including landing and cutting if your sport demands them. This is also your best injury-prevention tool: a structured neuromuscular warm-up of about 10 minutes, done twice a week, has been shown to cut serious knee injuries dramatically in young female athletes. Think of the warm-up as part of the workout, not the thing you skip when you're short on time.

For a teen just starting out, bodyweight and free weights (dumbbells, barbells, kettlebells) win, because they teach your whole body to coordinate and stabilize the way real life and real sport demand. Machines aren't bad — they're useful for learning a movement or training safely when you're tired — but they do some of the stabilizing work for you, so they shouldn't be the whole plan. Whichever you use, supervised, well-coached resistance training is safe for teens: in one youth program, athletes lost zero training days to injury when technique was taught properly. Start with patterns you control, then load them.

Strength plus plyometrics — that combination is the proven engine for speed and power. A 2025 meta-analysis of 705 female adolescent athletes found that combining resistance training with plyometric (jumping and bounding) work produced moderate-to-large improvements in sprint speed, jump height, and change-of-direction ability. Lifting builds the force; plyometrics teaches you to apply it fast. Neither one alone gets you the full result.

Because your nervous system is unusually good at learning movement right now, and skills like acceleration, deceleration, and cutting are built most efficiently during these years. This isn't just about being fast today — the coordination and landing mechanics you develop now protect your knees and set your athletic ceiling for years. Waiting until college to "get serious" means missing the window when this stuff is easiest to build.

No. Real core training is about learning to keep your spine stable while your arms and legs do work — bracing under a heavy carry, holding position in a plank, resisting rotation — not endless sit-ups. A stable core is what lets you transfer force from the ground up through your body, which is where speed and power actually come from. Crunches train one small motion; stability training trains the job the core is really for.

Yes, once you have a strong general foundation. The base — the four movements, speed, landing mechanics, and progressive strength — is the same for almost every girl; sport-specific work is a layer you add on top, not a replacement for building a well-rounded athlete first. A swimmer needs more bone-loading impact work; a soccer or volleyball player needs heavy investment in landing and cutting mechanics for the knees. Build the athlete, then sharpen for the sport.

This is the "build the athlete, not the body" phase. Strength gains here come from the nervous system learning to coordinate — not from hormones — so the goal is fundamental movement patterns, speed, agility, and bodyweight strength, all treated like play and skill-building. Absolutely no body-composition tracking or appearance language; the point is competence and confidence. What you build now is the platform everything else stands on.

This is the phase most programs get wrong. As estrogen rises, your body redistributes fat and your coordination may temporarily wobble as you grow into a new frame — and the worst thing you can do is pull back on strength work because your body is changing. Keep training, emphasize movement quality over heavy load, and add landing and stability work, because the ACL-risk window opens here. Your body changing is not a problem to fix — it's something to support.

Yes — this is when it happens. As your cycle begins and hormones shift from rising to cycling, your strength potential meaningfully increases and progressive overload becomes both more productive and more important. This is the phase to train hard, get genuinely strong, and start using basic cycle awareness as self-knowledge (not a rigid syncing system). Track strength, energy, and performance — never weight or body fat.

Here's the honest answer: cycle awareness is useful, rigid cycle syncing is not. Knowing you may feel flatter and more injury-prone in the week before your period lets you warm up longer and prioritize movement quality — that's smart. But the current evidence does not support programming your strength or endurance training around cycle phases for extra performance benefit over normal, well-designed training. A December 2025 NSCA evidence review reached exactly this conclusion. Use your cycle as information, not as a rulebook.

Because that's exactly when it protects you and keeps you sharp. Research on elite female soccer players found that maintaining strength training in-season preserved and even improved strength and power without interfering with sport performance. Dropping the weights mid-season is when strength quietly leaks away and injury risk creeps up. Less volume in-season is fine — zero is not.

Yes, and the numbers are stark — but so is the good news. A meta-analysis spanning 17.8 million athlete-exposures found adolescent girls tear their ACL at roughly 1.4x the rate of boys, and over 4x in basketball, with a multisport high-school girl carrying about a 10% career risk. The hopeful part: this is trainable biomechanics, not fragility. How you land, cut, and decelerate can be coached — and coaching it works.

By building the muscle and control around the joint that absorbs force before your ligaments have to. Stronger hamstrings, glutes, and hips mean better landing and cutting mechanics, which is where most non-contact ACL tears actually happen. Combined with landing-mechanics practice, strength work turns a vulnerable knee into a resilient one. You're not just getting stronger — you're building a shock absorber.

Dramatically, when it's the right kind. A structured neuromuscular warm-up — about 10 minutes, twice a week, focused on landing, balance, and control — has been shown to cut ACL injuries by up to 61% in young female athletes. That's one of the highest-return 10 minutes in all of sport. Skipping it to save time is a genuinely bad trade.

Because landing is the skill that protects everything else. Most serious knee injuries in girls happen on non-contact landings and cuts — coming down from a jump or changing direction with the knee caving inward. Learning to land softly, with knees tracking over toes and hips absorbing the force, directly lowers that risk. It's boring to practice and it's the difference between a full season and a torn ACL.

Slowly, and with a plan — not by testing whether it still hurts. This matters because the research is blunt: an injury in the previous 12 months roughly doubles your risk of a new one (about 13% vs 6% in elite adolescent female athletes), and higher wellbeing — good sleep, low soreness, low stress — is protective. So rebuild the basics, restore full strength and control on both sides, and progress load gradually before returning to full sport. Returning "when it feels okay" is not the same as returning when your body is actually ready.

This is one of the biggest reasons to lift as a teen. Roughly 90% of your peak bone density is built by your early 20s, and this window largely sets your skeletal health for the rest of your life. Weight-bearing strength work — squats, deadlifts, lunges, jumping — is one of the most powerful tools for building it. What you build now, you carry for decades.

Because the pre- and early-puberty years are when bone responds most powerfully to loading. A 2026 meta-analysis on exercise and bone mineral density in adolescents confirmed that combined resistance-plus-impact training, about three times a week, is the evidence-backed target for building bone during these years. Start early and you bank more; the deposits you make before your late teens are the ones that protect you against fractures and bone loss for life. This is a genuinely once-in-a-lifetime window.

More than most, actually. Swimming and cycling are fantastic for your heart and lungs, but the water and the bike remove the bone-loading impact that builds skeletal strength — so low-impact-sport athletes have the most to gain from adding weight-bearing strength work. Squats, jumps, and heavy lifting give your bones the stimulus your sport doesn't. Think of lifting as the bone-building your sport is missing.

It won't, and the physiology is clear. Girls and women have far lower levels of the hormones that drive large muscle growth, so strength training makes you stronger, more powerful, and more athletic long before it makes you noticeably bigger. The "bulky" look people fear takes years of deliberate, specialized effort most athletes never approach by accident. A 2020 meta-analysis found no significant difference in muscle growth between women and men following the same program — and women actually showed a larger relative gain in upper-body strength. What you'll get is a body that performs — and that's the whole point.

This is an old myth with no evidence behind it. Supervised strength training does not damage growth plates or stunt height — a 2021 narrative review found no evidence that weightlifting "stunted" growth in young lifters, and reviews consistently show it's safe and beneficial when coached properly, improving strength, bone health, and even reducing injury risk. The real risk to a young athlete's development isn't the barbell; it's under-fueling and doing too much with no recovery. Lifting builds young athletes up, it doesn't shrink them.

Cardio is one kind of fitness, not the whole thing. Strength training builds muscle, bone, power, and injury resilience that cardio alone simply can't — and for a developing female athlete, those are exactly the qualities that protect long-term health and performance. You don't have to choose one; you need both, but strength is the piece girls are most often told to skip. Resistance training gives women documented benefits cardio can't fully match — bone, metabolic health, body composition, and mental health. Don't skip it.

The warm-up isn't about being unfit — it's about being ready and protected. Even strong, trained athletes get their biggest injury-prevention benefit from a proper neuromuscular warm-up, which primes the exact landing and cutting mechanics that prevent knee injuries. Being able to lift heavy doesn't exempt you from the 10 minutes that keeps you in the game. Strong and un-warmed-up is still a tear waiting to happen.

Properly coached heavy strength training is one of the safest and most beneficial things a teen girl can do — the injury rates in supervised youth resistance training are low, far lower than in the sports these girls already play. "Heavy" always means heavy relative to you, built up gradually with good technique, never ego-lifting. The danger isn't the weight; it's bad coaching, no progression, or no recovery. Done right, heavy lifting is protective, not risky.