Designed as a pair, the FIRM Strength and FIRM Cardio cross train by varying the sequencing of exercises: FIRM Strength shapes muscle by first working the upper body, then the entire lower body, and FIRM Cardio burns fat using PHA (Peripheral Heart Action) training to work the upper and lower body alternately. PHA sequencing also strengthens the heart by repeatedly making it pump blood back and forth between distant muscle groups. When used on alternate days they sculpt your body by preventing muscles from adapting to predictable exercise sequences, and maximize aerobic endurance and fat burning.
Pumping Iron
1977
7.1/10
The Game Changers
2019
7.3/10
For the Love of Spock
2016
7.4/10
Looking for Richard
1996
6.8/10
The Game Plan
2007
6.5/10
Little Manhattan
2005
7.2/10
Bride Wars
2009
6.2/10
Bed of Roses
1996
5.9/10
Air Force Elite: Thunderbirds
2025
7.0/10
High Strung
2016
7.0/10
Fearless
2020
5.9/10
A Second Chance: Rivals!
2019
6.9/10
LEGO Marvel Spider-Man: Vexed by Venom
2019
6.3/10
Guess Who
2005
6.0/10
LEGO Scooby-Doo! Knight Time Terror
2015
7.9/10
Earth: One Amazing Day
2017
7.7/10
Scooby-Doo! The Sword and the Scoob
2021
7.6/10
The Princess Diaries 2: Royal Engagement
2004
6.7/10
Jolly Good Christmas
2022
6.7/10
The Current War
2018
6.7/10
Chairobics
1991
0/10
