JJ's High Performance

JJ's High Performance My name is Jack Grimes. I played 9 years at the Melbourne Football Club in the AFL, including three years as co-captain. Far bigger than it should be.
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šŸ“ˆ Helping footballers at every level train smarter, perform better, and reach their peak.
šŸ™‹šŸ»ā€ā™‚ļøDelivered by Jack Grimes, Ex-AFL player & Co-Captain
Trusted by 3000+ players - be the next šŸ‘‡šŸ¼ While still playing, I opened my own personal training studio, where I coached everyone from first-timers to aspiring pro athletes. After my AFL career, I returned to local footy and it quickly became clear ju

st how big the gap is between local and elite levels when it comes to strength and conditioning. Too many players were working hard, but not seeing the results they deserved, not because of a lack of effort, but because that effort was going into the wrong areas. Thatā€™s when I set out to build something that would change the game for local-level footballers chasing their full potential. A platform thatā€™s affordable, easy to use, and flexible enough to fit around school, work, or uni. Iā€™ve been fortunate to learn from some of the best strength & conditioning coaches in the country. And Iā€™ve leaned on those around me too, including my brother Dylan, who had a 13-year career at Richmond, earning three premierships and a Best & Fairest. Now, through the JJā€™s app, I wonā€™t just tell you what to do,
Iā€™ll coach you through it.

25/08/2026

Players often have no idea how to review their season. Thereā€™s one clear winner.

23/08/2026

Season done? Donā€™t just start training.

21/08/2026

Hereā€™s what the stats say since the stand rule came in:

Teams are moving the ball from D50 to Inside 50 more effectively.

Kick-ins are reaching Inside 50 more often.

Uncontested marks have increased.

Stoppages and tackles have decreased.

And scoring has increased.

Exactly what the rule was designed to do.

19/08/2026

Speed might not be your issue.

18/08/2026

Some basic rules for this testšŸ‘‡šŸ¼

1ļøāƒ£ Every rep paused on the ground. No touch and go.
2ļøāƒ£ Full lockout at the top.
3ļøāƒ£ Only a few seconds between reps.
4ļøāƒ£ Every rep starts from the floor. No raised plates or blocks.
5ļøāƒ£ Once form breaks down, the test is done.

For footballers, getting stronger isnā€™t just about building muscle.

The goal is to improve how much force you can produce relative to your bodyweight, then learn to express that force quickly.

A 100kg player lifting 180kg = 1.8x bodyweight.
An 80kg player lifting 160kg = 2x bodyweight.

The lighter player lifts less, but is relatively stronger.

That matters for sprinting, jumping, changing direction and moving your body around the field.

But more strength isnā€™t automatically better forever.

If youā€™re already around 2x bodyweight or above on the trap bar, simply chasing bigger max-strength numbers becomes less important. And if youā€™re already above 2.3x BW, it probably shouldnā€™t be your main physical priority.

From there, the focus shifts towards expressing that strength faster through sprinting, jumping and explosive work.

Get strong. Then learn to use it fast.

16/08/2026

2008 to 2016 was a special era.

14/08/2026

Higher isnā€™t always better.

12/08/2026

Donā€™t confuse freshening up with under-stimulating.

11/08/2026

What others have you got?

09/08/2026

What recruiters rate more than anything else.

Address

Templestowe Lower, VIC

Opening Hours

Monday 6am - 7pm
Tuesday 6am - 8pm
Wednesday 6am - 8pm
Thursday 6am - 8pm
Friday 6am - 8pm
Saturday 8am - 12pm
Sunday 8am - 5pm

Telephone

+61407319374

Website

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