Challenger Strength

Directions Website

Challenger Strength 🔑 Challenger Knows
We Train THOUSANDS of Athletes
We get you faster, stronger & jacked
⬇️ Need Year-Round Performance Training? Challenger Strength LLC.

Join us on OnlyStrength: https://www.onlystrength.training/sign-up-1 is a strength training and personal fitness brand owned and headed by Gerry DeFilippo ISSA CPT, CPPS. Gerry works along side New Jersey's premier, multidisciplinary, outpatient physical therapy practice, Performance Physical Therapy and Sports Conditioning, and also heads their Strength Training department. Challenger Strength provides private, semi-private, and group training for clients of all ages, and specializes in not only providing personal fitness but also athletic strength and performance.

Athletes MUST prioritize sleep! It is tremendously essential!Sean McVay said it plain. Treating no sleep like a flex is ...
10/14/2026

Athletes MUST prioritize sleep! It is tremendously essential!

Sean McVay said it plain. Treating no sleep like a flex is the dumbest thing he ever heard.

He is right. And the data on young athletes is worse than the quote.

A prospective look at adolescent athletes, average age about 15, found that kids averaging less than 8 hours a night were 1.7 times more likely to get hurt than the ones sleeping 8 or more.

In that same group, 65% of the short sleepers got injured. 31% of the ones who got 8-plus hours did. That is not a vibe. That is the difference between available and not available.

Sleep is when the session actually sticks. Growth hormone, tissue repair, reaction time, the ability to cut and decelerate without the joint taking the hit.

You can train hard and still give the work back if the night is short. Extra sleep in one college basketball group improved shooting accuracy by about 9% and cut sprint times. Same players. More hours. Better output.

Most young athletes are not short on sleep because they are grinding. They are short on sleep because the phone is on, the game is late, and nobody has told them the recovery is the job. Prioritize it.

8 to 10 hours when you can. Same bedtime. Dark room. Phone out of the bed.

Save this and send it to the kid who thinks being tired is proof they are working hard.

Follow for the training that actually keeps athletes on the field.

Julian Lo Casto | Basketball Strength Coach

Change of direction is KEY for athletesYou MUST train itThese are 6 plyometrics to build elite change of direction1. Bro...
10/13/2026

Change of direction is KEY for athletes

You MUST train it

These are 6 plyometrics to build elite change of direction

1. Broad jump to lateral box jump
2. Drop jump to lateral jump
3. Hurdle jump to lateral jump
4. Lateral jump to 1/4 turn box jump
5. Double hurdle jump to lateral jump
6. Med ball lateral jump to release to lateral jump

Julian Lo Casto | Basketball Strength Coach

10/12/2026

A quality speed warm-up is a MUST

A bad speed warm-up = injury

A good speed warm-up = sprinting PR times

Save & use this elite sprint warm-up!

1. High knees down + back
2. Skips for height down + back
3. Skips for distance down + back
4. Rhythmic split squat jumps x5 each
5. Inchworm x10
6. Knee pull to chest x5 each
7. Pec stretch x30 sec
8. Hip gate: x5 each open/closed
9. Fire hydrant to IR: x5 each
10. RKC plank: x30 sec
11. Split squat: x5 each
12. Reverse lunge: x5 each
13. Max pogo: x4
14. Build-up sprints: 20%, 60%, 80%, 100%

Julian Lo Casto | Basketball Strength Coach

Let springs = key for speed/powerYou must consistently train it🦵This weekly 6 exercise limb stiffness routine will have ...
10/12/2026

Let springs = key for speed/power

You must consistently train it

🦵This weekly 6 exercise limb stiffness routine will have you fast & powerful!

Save this routine & use it!

1. Band assisted extensive pogo x30 sec
2. Band assisted extensive SL pogo x30 sec
3. Band assisted intensive pogo x8 seconds
4. Med ball pogo to max release pogo
5. Stiff vertical double jump to box jump
6. Quadruple pogo jump to box jump

Julian Lo Casto | Basketball Strength Coach

Athletes MUST be FASTI get my athletes FAST (like this) by doing these special exercises🚀 10 non sprint exercises to aid...
10/12/2026

Athletes MUST be FAST

I get my athletes FAST (like this) by doing these special exercises

🚀 10 non sprint exercises to aid top speed & acceleration development

1. Overhead med ball throws
2. Med ball SL broad jumps
3. Drop jumps
4. Sled “sprint drivers.”
5. Maximal pogo jumps
6. Sprinter position maximal iso pulls
7. Bound/hop variations
8. Banded dynamic rack pulls
9. Heavy sled pushes
10. Forward med ball scoop throws

Julian Lo Casto | Basketball Strength Coach

Plyometrics = power!Athletes MUST be powerfulThese are 7 plyometrics/jumps you NEED to be powerful!1. Repeat single leg ...
10/11/2026

Plyometrics = power!

Athletes MUST be powerful

These are 7 plyometrics/jumps you NEED to be powerful!

1. Repeat single leg broad jumps
2. Depth jumps
3. Triple hurdle jumps
4. Maximal pogo jump
5. Repeat maximal forward pogo jumps
6. Single leg drop jumps
7. Drop jump to vertical jump

Julian Lo Casto | Basketball Strength Coach

Athletes MUST train to build big time accelerationTeam sports are dominated by who can be better at 10-15 yard bursts of...
10/09/2026

Athletes MUST train to build big time acceleration

Team sports are dominated by who can be better at 10-15 yard bursts of speed

If you aren’t training things to help you build these qualities, you need to!

Save this post

These are the 16 best jump & strength exercises I program to build explosive acceleration

Use them 👈

Julian Lo Casto | Basketball Strength Coach

Stiff hips steal first-step speed and make every lift feel heavier.Save this.New hip series. Use 2–3 before you train.👇1...
10/09/2026

Stiff hips steal first-step speed and make every lift feel heavier.

Save this.

New hip series. Use 2–3 before you train.

👇

1. Flow: side lunge, cross-over step-up, SL RDL, cross-over step down
2. Foam roller, adductor SL RDL
3. Side lunge slide out with outside pull
4. Landmine foot elevated side lunge
5. Landmine SL RDL
6. Elevated 90/90 with rotation

Do them 3–4x this week. You’ll move better in no time!

Julian Lo Casto | Basketball Strength Coach

When I tell people how injury reduction & strength training go hand in hand, I’m not exaggeratingThe research shows it. ...
10/07/2026

When I tell people how injury reduction & strength training go hand in hand, I’m not exaggerating

The research shows it. Quality, year round strength and speed training is the BEST way to stay healthy as an athlete

So not only are you getting the benefit of improving speed/strength, you’re ALSO getting the benefit of staying healthy

It is truly a win-win!!!

In-season injury reduction, overuse injury reduction, hamstring injury reduction, non contact lower body injury reduction

They all PLUMMET when you consistently strength train in-season. Don’t forget it

Tell someone who still needs to hear it

Julian Lo Casto | Basketball Strength Coach

If you’re an athlete & NOT training reaction… good luck being a good athlete!These are 5 agility drills you MUST include...
10/07/2026

If you’re an athlete & NOT training reaction… good luck being a good athlete!

These are 5 agility drills you MUST include in your training!

Save them, level up, get more agile!

1. Lateral foam roller cut reactions
2. Partner lateral shadow to sprint
3. Partner freestyle shadow to sprint
4. Ball drop reactive shuffle to partner reactive shuffle-sprint
5. Ball drop reactive sprint to deceleration

Julian Lo Casto | Basketball Strength Coach

Address

10 Nevins Road
Wayne, NJ
07470

Opening Hours

Monday 7am - 7pm
Tuesday 7am - 7pm
Wednesday 7am - 7pm
Thursday 7am - 7pm
Friday 7am - 7pm

Alerts

Be the first to know and let us send you an email when Challenger Strength posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share