Although inflatable muscle suits are easy to apply and double as flotation devices, natural brawn actually lifts heavy objects and doesn’t deflate when given a routine allergy shot. Blow up your fitness routine with today’s Groupon: for $45, you get a one-month unlimited gym-membership package at Constant Growth (up to a $135.60 value, including HST). The membership package includes unlimited access to:

• Gym facilities
• Drop-in classes<p>

Constant Growth’s certified trainers drill students of all ages in drop-in classes, each of which last 90 minutes and are customized to students’ experience and skill level, inside their gym and training facility. Up to 10 students learn to stretch, pose, and hone pipe-cleaner impressions while working their core muscles in mat-based yoga and Pilates sessions. Punches and kicks gain power and accuracy under the guidance of a professional fighter in kickboxing and boxing classes, which include up to 30 students, at Walton Boxing Gym’s regulation MMA boxing ring. Coaches conduct some drop-in sessions in a private facility adjoining the main gym complex.

Members fill their time outside scheduled classes and scheduled training montages by hastening heart rates and completing reps on the gym’s ample supply of weights and cardio equipment. Though not included in this deal, students can also develop a custom workout regimen during personal-training sessions.