NASM-certified coach10+ years coaching45 clients in 2026, across 10 countries
Works with
Apple Health
Apple Watch
Oura
Health Connect
Effort was never what you were missing.
Smart, driven people put real effort into fitness. What usually breaks is the plan, the moment work, travel or family get busy. CALIBRATE is built to bend at exactly those points.
What usually happens
What we do instead
You've started over more times than you can count
A protocol built to survive travel, deadlines and bad weeks
Generic plans ignore your schedule
Training and nutrition written around your calendar
You don't know if any of it is working
Weekly data review, so you always know where you stand
Nobody adjusts the plan when life changes
Your coach adapts the plan within 4 hours, every time
Willpower alone keeps running out
A system that keeps working when motivation doesn't
Define, Measure, Analyse, Improve, Control.
DMAIC is the improvement framework engineers use to perfect complex processes. CALIBRATE applies it to your body, and Vemisis runs it for you every day.
D
M
A
I
C
Define
Week 0
Constraint mapping around your actual work schedule, lifestyle and body. We don't fit you into a programme, we build the programme around you.
In Vemisis
Goal and starting point captured at onboarding
Your calendar, equipment and food habits mapped
Measure
Every day
Bodyweight trends, training performance, nutrition compliance, energy and sleep. Measured continuously, so nothing is left to guesswork.
In Vemisis
Vitals synced from Apple Health and Health Connect
Meals, weight, sleep and water logged in seconds
Analyse
Every week
Root cause diagnosis when progress stalls. Instead of pushing harder, we identify exactly which variable is blocking results.
In Vemisis
Your Vemisis Score breaks down what is driving progress
Biggest opportunity surfaced for you and your coach
Improve
Week by week
Protocol adjustments based on your real feedback loop. Nutrition targets, training volume and recovery are tuned every single week.
In Vemisis
Updated macros and meal plan pushed to your phone
Training progressions set before every session
Control
For life
Self-correcting systems that handle travel, illness and schedule changes without derailing months of progress.
In Vemisis
Trends and compliance tracked against your target
Habits that hold long after the programme ends
D
Define
Week 0
Constraint mapping around your actual work schedule, lifestyle and body. We don't fit you into a programme, we build the programme around you.
M
Measure
Every day
Bodyweight trends, training performance, nutrition compliance, energy and sleep. Measured continuously, so nothing is left to guesswork.
A
Analyse
Every week
Root cause diagnosis when progress stalls. Instead of pushing harder, we identify exactly which variable is blocking results.
I
Improve
Week by week
Protocol adjustments based on your real feedback loop. Nutrition targets, training volume and recovery are tuned every single week.
C
Control
For life
Self-correcting systems that handle travel, illness and schedule changes without derailing months of progress.
Your body's signals, turned into three clear numbers in the Vemisis app. You see them every morning, and so does your coach.
One number for your week
Training, nutrition, sleep and habits rolled into a single score, with the biggest opportunity called out for you.
Overall score62 / 100+22 from last week
Know exactly what you've eaten
Calories and macros against the targets your coach set, with your usual meals one tap away.
Protein today96 / 180 g84 g to go
Train hard, or take it easy
HRV, resting heart rate and sleep from your wearable, turned into a daily readiness call.
Recovery72 / 100Ready to train
Screens show sample data.
Blood tests belong in your plan too.
Bring your latest blood test into Vemisis. The numbers sit next to your daily data, so your coach plans with the full picture.
Add a blood test as a photo or file
Each marker is shown against the range printed on your report
Your coach reviews it alongside your training and recovery
Marker values shown are samples.
Vitamin D18 ng/mLLow
HbA1c5.3 %Normal
Ferritin42 ng/mLNormal
LDL142 mg/dLHigh
TSH2.1 mIU/LNormal
Haemoglobin14.6 g/dLNormal
Everything your coach sets lives in Vemisis.
Vemisis is the training app built for CALIBRATE clients. Sessions, macros, recovery and your coach live in one place, so every day is already decided before you wake up.
“You guided me step by step, starting with the necessary blood tests. Based on the reports, you created a personalized diet plan along with proper training and strengthening exercises. That structured approach really made a big difference. When I started, my weight was 113 kg, and within just one and a half months, I have reduced around 10 kg …”
RRubanraj H.Weight lossGoogle review
“At that time, I was 99 kg and dealing with poor sleep, high stress, and a few other health issues related to my weight. … it’s only been about 2.5 months, and I’m already down to 88 kg! One of the biggest surprises for me was that I never felt hungry or deprived.”
AAmritha P.Weight lossGoogle review
“Despite a slight tear in my knee, Vikram's expertise and guidance have led to significant improvement in my condition.”
RRohitKnee tearGoogle review
“Was seeking his help for a sports related injury caused due to over use. Vikram was able to narrow down on the issue even from the initial discussions.”
VVenkat S.Sports injuryGoogle review
“Vikram is very knowledgeable and worked with and around my needs and limitations. He definitely pushes you 🙂 but you will realise that’s just the right amount of push you needed.”
MMadhavi C.Neck pain and postureGoogle review
“Great trainer. Very attentive and knowledgeable with years of experience. He tracked every workout and built a solid plan tailored just for me. Highly recommended!”
PPraneeth C.Personal trainingGoogle review
“My parents, who are in their in their 60s and early 70s, have been training with Vikram for a couple of months now, and I couldn't be happier with the progress they've made! He structures each session so thoughtfully, tailoring exercises to their abilities while still challenging them to improve every day.”
DDivya S.Parents in their 60s and 70sGoogle review
“I would say Vikram knows his art and is very systematic in addressing issues around strength, flexibility and nutrition. He has a very personable attitude, spends time listening to your concerns, asks for minimum necessary weight equipment and does not give a one-size-fit-all program.”
SSugumar M.Online strength trainingGoogle review
“Vikram has an in-depth knowledge of the core training concepts that have been used for decades. He's always on top of new trends and constantly adds variation to keep things interesting.”
NNainesh S.Personal trainingSuperprof review
“He quickly identified the cause of my shoulder pain and adjusted my workouts to help with recovery. He also corrected my push-up form, which was making the pain worse.”
LLeoShoulder painGoogle review
“You guided me step by step, starting with the necessary blood tests. Based on the reports, you created a personalized diet plan along with proper training and strengthening exercises. That structured approach really made a big difference. When I started, my weight was 113 kg, and within just one and a half months, I have reduced around 10 kg …”
RRubanraj H.Weight lossGoogle review
“At that time, I was 99 kg and dealing with poor sleep, high stress, and a few other health issues related to my weight. … it’s only been about 2.5 months, and I’m already down to 88 kg! One of the biggest surprises for me was that I never felt hungry or deprived.”
AAmritha P.Weight lossGoogle review
“Despite a slight tear in my knee, Vikram's expertise and guidance have led to significant improvement in my condition.”
RRohitKnee tearGoogle review
“Was seeking his help for a sports related injury caused due to over use. Vikram was able to narrow down on the issue even from the initial discussions.”
VVenkat S.Sports injuryGoogle review
“Vikram is very knowledgeable and worked with and around my needs and limitations. He definitely pushes you 🙂 but you will realise that’s just the right amount of push you needed.”
MMadhavi C.Neck pain and postureGoogle review
“Great trainer. Very attentive and knowledgeable with years of experience. He tracked every workout and built a solid plan tailored just for me. Highly recommended!”
PPraneeth C.Personal trainingGoogle review
“My parents, who are in their in their 60s and early 70s, have been training with Vikram for a couple of months now, and I couldn't be happier with the progress they've made! He structures each session so thoughtfully, tailoring exercises to their abilities while still challenging them to improve every day.”
DDivya S.Parents in their 60s and 70sGoogle review
“I would say Vikram knows his art and is very systematic in addressing issues around strength, flexibility and nutrition. He has a very personable attitude, spends time listening to your concerns, asks for minimum necessary weight equipment and does not give a one-size-fit-all program.”
SSugumar M.Online strength trainingGoogle review
“Vikram has an in-depth knowledge of the core training concepts that have been used for decades. He's always on top of new trends and constantly adds variation to keep things interesting.”
NNainesh S.Personal trainingSuperprof review
“He quickly identified the cause of my shoulder pain and adjusted my workouts to help with recovery. He also corrected my push-up form, which was making the pain worse.”
LLeoShoulder painGoogle review
“He makes sure to motivate and push hard but ensures that it is always within limits of my body (which he understands by meticulously tracking progress of my workouts on his tablet). I always feel challenged and good after my workouts without fear of injury.”
GGowrishankar T.BeginnerGoogle review
“My mom age is 72 and she was not able stand properly and walking with help of others … With in month my mom start to little bit walk without anything help and climbing the 2 floors of terrace with 40 steps.”
DDeepika R.Mum, age 72Google review
“He is meticulous in planning the schedule and sticks to it. … Workouts are tailor made to suit individual’s capacity and ensure no injury or damage in the process. He is polite and respectful which puts me at comfort as a female trainee.”
KKavitha L.Personal trainingGoogle review
“Overall very good experience. Not rushed. Very consistent and i like the way each exercise is explained with detail”
VVaisakhAssessment and onboardingSuperprof review
“Right from the get go, I could tell how knowledgeable, data driven and professional Vikram is. … He started focussing on my form in various exercises especially making sure my lower back was not getting strained. This is what distinguishes a good and a great trainer imo.”
PPranav R.1 on 1 strength trainingGoogle review
“They explained the ‘why’ behind every food and workout suggestions, which helped me stay consistent. They’re also very responsive and updated the plan regularly based on my progress.”
GGanesh S.Diet and trainingGoogle review
“Vikram is very disciplined and organized with his training approach. Very few trainers go into such a detail level. He is accommodating to your needs.”
GGouri M.Online personal trainingGoogle review
“He has the capacity of changing things up, making the workouts interesting as well as challenging using new and varied techniques along with different types of fitness equipment. He is extremely good with online training.”
MMathew A.Online trainingGoogle review
“He helps you understand the target muscles of the different exercises and always has alternative for each of them if they get too difficult.”
NNilesh P.Personal trainingGoogle review
“He makes sure to motivate and push hard but ensures that it is always within limits of my body (which he understands by meticulously tracking progress of my workouts on his tablet). I always feel challenged and good after my workouts without fear of injury.”
GGowrishankar T.BeginnerGoogle review
“My mom age is 72 and she was not able stand properly and walking with help of others … With in month my mom start to little bit walk without anything help and climbing the 2 floors of terrace with 40 steps.”
DDeepika R.Mum, age 72Google review
“He is meticulous in planning the schedule and sticks to it. … Workouts are tailor made to suit individual’s capacity and ensure no injury or damage in the process. He is polite and respectful which puts me at comfort as a female trainee.”
KKavitha L.Personal trainingGoogle review
“Overall very good experience. Not rushed. Very consistent and i like the way each exercise is explained with detail”
VVaisakhAssessment and onboardingSuperprof review
“Right from the get go, I could tell how knowledgeable, data driven and professional Vikram is. … He started focussing on my form in various exercises especially making sure my lower back was not getting strained. This is what distinguishes a good and a great trainer imo.”
PPranav R.1 on 1 strength trainingGoogle review
“They explained the ‘why’ behind every food and workout suggestions, which helped me stay consistent. They’re also very responsive and updated the plan regularly based on my progress.”
GGanesh S.Diet and trainingGoogle review
“Vikram is very disciplined and organized with his training approach. Very few trainers go into such a detail level. He is accommodating to your needs.”
GGouri M.Online personal trainingGoogle review
“He has the capacity of changing things up, making the workouts interesting as well as challenging using new and varied techniques along with different types of fitness equipment. He is extremely good with online training.”
MMathew A.Online trainingGoogle review
“He helps you understand the target muscles of the different exercises and always has alternative for each of them if they get too difficult.”
NNilesh P.Personal trainingGoogle review
Excerpts from public Google and Superprof reviews, quoted word for word. Names shortened. Many clients know Guhayavarman as Vikram. Individual results vary.
What coaching costs.
Every plan includes the full CALIBRATE system, your Vemisis app access, weekly analysis and direct coach access.
Follow the protocol for 30 days. If you don't see measurable progress in your check-in data, we rebuild your plan from scratch, free, until you do. Fees and cancellations follow our Refund, Cancellation & Rescheduling Policy.
I started CALIBRATE because I kept seeing the same pattern: smart, motivated people failing to reach their goals, not from lack of effort, but from lack of the right system. Engineers, founders and product managers putting in the work and getting nowhere.
The fitness industry profits from confusion. CALIBRATE is built on the opposite principle: the same data-driven frameworks used in precision engineering, applied to your body.
Engineers, product managers, consultants and founders who work 10+ hour days and have failed at generic fitness programmes before. The system is built around data, not motivation.
What is the difference between CALIBRATE and Vemisis?
CALIBRATE is the coaching methodology from GVNFIT (Guhayavarman Fitness): the DMAIC protocol, your coach and the weekly analysis. Vemisis is the app that delivers it, holding your sessions, nutrition, recovery data and coach chat in one place.
Why a 3-month minimum commitment?
Real body recomposition takes time. The first month establishes baselines. Months two and three are where the compounding effect of weekly adjustments produces visible, measurable results.
How does coach support work?
Your coach is reachable via WhatsApp on weekdays with a maximum 4-hour response window, covering questions, adjustments and anything between weekly check-ins. You can also message your coach inside Vemisis.
How quickly can I start?
Applications are open to everyone and each one is personally reviewed, usually within 48 hours. Onboarding is paced so coaching quality stays high.
Do I need a gym?
No. Programmes are built for a gym, home gym, hotel gym or bodyweight setup. Your training is written around what you have access to.
Is the consultation call really free?
Completely free, and not a sales call. We review your situation and tell you honestly whether the programme fits your goals and timeline.
Start with a free 30-minute call.
Tell us where you are and where you want to be. In a free 30-minute call we'll show you exactly how CALIBRATE and the Vemisis app would work around your schedule. No pressure, no commitment.
Online
Online or in person
Online or in person
Online or in person
Something else on your mind? Message a coach 