Why Accuracy Matters In sports science, the value of any measurement device ultimately comes down to accuracy . No matter how convenient or affordable a tool is, if the measurements cannot be trusted, they cannot serve as the basis for training decisions. PoinT GO performs a wide range of measurements — VBT, jump, RSI, ROM, isometric testing, weightlifting analysis, and more — all with a single IMU (Inertial Measurement Unit) sensor roughly the size of a fingertip. So the

What Is Olympic Weightlifting? Two athletes are lifting the same 100kg. One records a peak velocity of 1.9m/s in the 2nd Pull, while the other reaches only 1.6m/s. The weight is the same, but the first athlete makes the lift with room to spare while the second barely catches it. This 0.3m/s difference is nearly invisible to the naked eye, yet it separates success from failure. This is why velocity data matters. Olympic weightlifting consists of two events: the Snatch and t

What Is VBT? Have you ever benched 80kg effortlessly one day, only to find the same weight unusually heavy the next? Sleep, nutrition, stress -- countless variables change daily, so is it really rational to keep training loads fixed? Research shows that even the same athlete's 1RM can fluctuate by up to 18% from one day to the next. VBT (Velocity Based Training) solves exactly this problem. By measuring the speed of the barbell or dumbbell in real time, it finds the optimal

Why Throwing Training? No matter how hard you push the bench press, there is never a moment when you release the barbell. The same goes for squats -- you must decelerate at the end of every rep. But what about in competition? The moment a baseball is thrown, the instant a medicine ball slams into the floor -- there is no deceleration. This is the fundamental difference between throwing training and all other forms of training. Throwing training is the only training modality

What Is RSI? Picture a basketball player catching a rebound and immediately leaping back up for a dunk. Or a soccer player changing direction -- the foot is on the ground for less than 0.2 seconds. How much force can be produced in that brief moment? RSI is the number that shows you. RSI (Reactive Strength Index) is a metric that evaluates an athlete's reactive strength by measuring jump height relative to ground contact time . First proposed by Young (1995), this concept i

What Is 1RM? "How much do you bench?" -- a question every weight trainer has heard at least once. But attempting a true maximal lift every time to find your exact 1RM carries significant injury risk and requires 5-7 days for recovery. What if you could estimate your 1RM within 2-3% accuracy using just 3-4 submaximal sets ? 1RM (One Repetition Maximum) is the maximum weight you can lift for a single repetition . It serves as the standard for assessing strength levels and set

What Is ROM? Have you ever tried to do a full squat only to have your heels lift off the ground because of stiff ankles, or struggled to press overhead because your arms would not reach beside your ears? These limitations are not just minor inconveniences -- they can be warning signs leading to injury. Research shows that performing squats with insufficient hip ROM increases the risk of lumbar injury by 2.4 times . ROM (Range of Motion) refers to the maximum range through w

The Importance of Jump Testing The moment a basketball player grabs a rebound, the instant a volleyball player spikes over the net, the split second a soccer player contests a header -- the common thread in all these moments is the jump . Interestingly, vertical jump ability goes beyond simply "how high you can jump" -- it is a metric that can predict sprint speed, agility, and change of direction ability. According to a meta-analysis by Markovic & Jaric (2007), vertical ju

What Is Isometric Exercise? You have probably experienced your entire body shaking after holding a plank for just 30 seconds. Why is it so hard when you are not even moving? Isometric exercise looks simple on the surface, but muscles can be recruited up to 100% during maximal isometric contractions. There is a reason world-class weightlifters use isometric training to overcome sticking points, and physical therapists choose isometric exercise as the first prescription for te