2 Week Video Review

Initial Hands On Overview

Grit X vs Garmin 945 Overview & App Comparison

​Optical Heart Rate Accuracy

Workout 1 - Half Murph

This was the first test of the Optical versus a H10 Chest Strap using Polar Beat.  It fared reasonable versus the Average Heart Rate, but failed to capture the Peak Heart Rate Zone time, and thus had a lower TRIMP or exertion score for the workout.  This will cause the Load Tracking to lag reality, and needs to watched.
Additionally it seemed like because I was using 'Outdoor Other Cardio' training profile to capture GPS it may have more significantly lagged in HR due to NOT moving during the Pull Up, Push Up, Air Squat portion.
- Chest Strap - 155 Ave HR, 20:37 Zone 5, 82 Trimp
- Grit X - 137 Ave HR (88%), 5:19 Zone 5 (25%), 50 Trimp (61%)

Workout 2 - DB Snatches, DUs, and SA Thrusters

This was the second test of the Optical versus a H10 Chest Strap.  It again fared reasonable versus the Average Heart Rate, but also again failed to capture the Peak Heart Rate Zone time, and thus had a lower TRIMP or exertion score for the workout.  This will again cause the Load Tracking to lag reality.
- Chest Strap - 159 Ave HR, 22:01 Zone 5, 95 Trimp
- Grit X - 142 Ave HR (89%), 5:48 Zone 5 (26%), 57 Trimp (60%)

Grit X

H10 Chest Strap

Workout 3 - Lighter Basic Calisthenics

This workout was an easy warm up exercise done with some friends at F3. The heart rate doesn’t get as high so the Optical holds up better, but there was still differentiation on the HR fluctuation along the way.

Grit X

H10 Chest Strap

Workout 4 - Power Cleans, Push Ups, and Wall Balls

10 rounds of each, followed by some ab work at the end. The Grit kept pretty significantly below pace on HR tracking.  The Average HR was close, but the lack of assessing the Zone 5 is clearly continuing to bring the Trimp, or workout exertion level way down, missing 38% of effective work evaluation.
- H10 Chest Strap - 148 Ave HR, 15:26 Zone 5, 93 Trimp
- Grit X - 132 Ave HR (89%), 2:16 Zone 5 (14.7%), 58 Trimp (62%)

Grit X

H10 Chest Strap

Workout 6 - Push Ups, Deadlifts, Hang PCs, & Push Jerks

In this workout I did 100 Push Ups for time, followed by 10 rounds of Deadlifts, Hang Power Cleans, Push Jerks, and Push Ups, followed by 50 Push Up burn out.  The Grit unfortunately failed rather miserably, missing the entire Peak Zone, thus affecting the Trimp output, and therefore the True Load accumulation.
- Grit X - 128 Ave HR (81%), 0:00 Zone 5 (0%), 41 Trimp (43%)
- H10 - 158 Ave HR, 16:55 Zone 5, 94 Trimp
- Garmin 945 - 149 Ave HR (94%), 7:42 Zone 5 (45%)

Grit X

H10 Chest Strap

Garmin 945

Workout 7 - SA DB Snatches, Push Ups, Thrusters, Box Jumps

The Grit held up better in this workout - maintaining better HR versus the average, but the 945 is still keeping much better pace with a chest strap.
- Grit X - 149 Ave HR (95%), 17:56 Zone 5 (75%), 88 Trimp (83%)
- H10 Chest Strap - 156 Ave HR, 23:55 Zone 5, 105 Trimp
- Garmin 945 - 157 Ave HR (100%), 21:03 Zone 5 (88%)

Grit X

H10 Chest Strap

Garmin 945

Workout 8 - DB Snatches, DB Press, Bent Over Rows, Push Ups, Air Squats

The Grit X held up better in this workout than in previous ones, and the Garmin 945 continued to provide even more accuracy.  This workout was in two parts - first a declining rep scheme 10-9-8... of DB Hang Snatches and DB Seated Press - then second was 18 min AMRAP of bent over rows, push ups, and air squats.
- Grit X - 136 Ave HR (95.7%), 11:04 Zone 5 HR (71%), Trimp 95 (85%)
- H10 Chest Strap - 141 Ave HR, 15:41 Zone 5 HR, Trimp 112
- Garmin 945 - 142 Ave HR (101%), 12:35 Zone 5 HR (80%)

Grit X

H10 Chest Strap

Garmin 945

Workout 9 - DUs, Push Ups, Squats, Hang SA DB OHS, Walking OH Lunges

This was a short workout, with a lighter 4 rounds of 30 DU, 15 Air squats, 10 Push Ups - followed by some DB Squat Snatch work - then a Metcon of 6 rounds of Push Ups, Hang DB SA Snatch, and Overhead Walking Lunge
- Grit X - 129 Ave HR (97%), :41 Zone 5 HR (10%), Trimp 42 (78%)
- H10 Chest Strap - 133 Ave HR, 6:47 Zone 5, Trimp 54
- Garmin 945 - 136 Ave HR (102%), 2:39 Zone 5 HR (40%)

Grit X

H10 Chest Strap

Garmin 945