Alert – Chris Hemsworth shows off his ripped chest as he wishes personal trainer a happy birthday with incredible throwback photo

Chris Hemsworth has shared a tribute to his longtime personal trainer, Luke Zocchi. 

The 40-year-old superstar showed off his rippling chest muscles in a photo posted to Instagram on Monday.

The actor also posted a throwback image, showing his more lithe form back when the two men were still boys. 

Chris appeared to be a young teen in the image, with the two enjoying ice creams together. 

The new photo showed how much they had grown into men – and built up impressive muscles along the way.  

‘Happy 40th birthday to one of my best mates @zocobodypro. You’re one of a kind brother,’ Chris wrote in the caption alongside the image. 

Zocchi, who lives near the Hemsworth clan in Byron Bay, helps the superstar and his wife Elsa Pataky work on their physiques for blockbuster roles.

Speaking exclusively to FEMAIL, Luke said that weight lifting is key for those wanting to lose weight as well as build muscle.

Chris Hemsworth (right) has shared a tribute to his longtime personal trainer, Luke Zocchi (left). The 40-year-old superstar showed off his rippling chest muscles in a photo posted to Instagram on Monday.

The actor also posted a throwback image, showing his more lithe form back when the two men were still boys. Chris appeared to be a young teen in the image, the two enjoying ice creams

Luke also shared that Elsa, 48, used the same program Chris followed for his new blockbuster, Thor: Love & Thunder, to get in shape for her role as the very ripped Captain J.J. Collins in Interceptor – which left her in ‘the best shape of her life.’ 

Both Elsa and Chris used the Power program – designed by Luke – on Chris’ fitness app Centr.

‘Everyone thinks that you can only get these sorts of results from spending endless hours at the gym which is simply not the case,’ Chris told FEMAIL.

‘We have expertly crafted Centr Power to be a muscle-building program that delivers the best possible results while fitting into busy lifestyles and having the convenience to be done anywhere. 

Zocchi, who lives near the Hemsworth clan in Byron Bay, works with both Chris and his wife Elsa Pataky, and often helps with shift shape for their blockbuster roles. Pictured with Chris and fellow trainer Bobby Holland Hanton

‘Centr Power shares the formula we have used to get me in my best shape for over 20 movies, including the Thor franchise. 

‘ It is built around the key principles of muscle-building and will have you working to your max no matter how long you’ve been lifting – now super-sized for even bigger results.’

To build up your biceps to look similar to the God of Thunder, Luke recommends working on your upper body for the first four to six weeks you of a new training regime.

‘Keeping weights manageable for you and reps on the lower side of things,’ he says.

‘Then I would move to challenge yourself a little more and more each week – upping the intensity of the weights you are using and increasing reps from 6-8 to to 8-12.

‘I would focus on two sessions of “push” movements and two sessions of “pull” movements to make sure you are hitting all the different muscles you are targeting.