Relative Intensity Concept Part Two

How heavy is heavy?  How light is light?  If I do a set of 10 or a set of 5 or a set of 2 how do I know how heavy to go on each set?  Does it matter?  Is it important?  If we assume the volume is important (sets times reps) and if we assume the load is important (percentage of weight used) then relative intensity is the key that allows us to relate the loads of various sets and workouts to each other.  If we assume that strength training occurs at about 80 percent of max in strength type power lifts (bench, squat, and deadlift), then how do I determine what 80% is at various rep schemes?  Using the chart below makes it simple.  Eighty percent at 1 rep is 80% (actually on the chart it is 79%).  Eighty percent at 2 reps is 76%.  Eighty percent at 4 reps is 70%. Eighty percent at 6 reps is 64%. Eighty percent at 8 reps is 58%.  Eighty percent at 10 reps is 52%.  All you do is find 80% (actually 79%) on the left hand side of the chart under relative intensity and move across to the right on the same row.  As you come to 2, 4, 6, 8, and 10 reps across the top the number on the row is the load percentage that is the same relative intensity as 1 at 80%. This becomes an invaluable training tool as you write workouts for the strength lifts.  The reps for the Olympic lifts are so low (1 – 3  reps) that relative intensity is almost a non-factor.   In using the chart we assume that each rep equals 3 percent and each 3 percent equals 1 rep.   If you use 2.5% per rep or even 5% per rep you can devise your own chart to use while writing workouts.  I prefer to use 3% as it seems to allow for good jumps in loads without getting too big a jump as in the 5% percent loads and it still works rather well at the 10 rep range (unlike the 2.5% loads).  Here is the relative intensity chart.  Remember, to start at one side and/or the top and move your lines down and across until they intersect. Where they intersect is the load that the athlete will actually put on the bar.


Rel.

Int. reps       1             2              3              4             5               6               7             8               9             10


100 1         100           97            94            91            88            85            82            79            76            73

97 2            97            94            91            88            85            82            79            76            73            70

94 3            94            91            88            85            82            79            76            73            70            67

91 4            91            88            85            82            79            76            73            70            67            64

88 5            88            85            82            79            76            73            70            67            64            61

85 6            85            82            79            76            73            70            67            64            61            58

82 7            82            79            76            73            70            67            64            61            58            55

79 8            79            76            73            70            67            64            61            58            55            52

76 9            76            73            70            67            64            61            58            55            52            49

73 10          73            70            67            64            61            58            55            52            49            46

In order to use the chart all you do is decide what rep ranges you are going to use for the particular exercise and the relative load range in which you wish to train for the cycle.  For example if you are going to do 5 sets of 5 for 5 weeks and wish to slowly advance the load you can do the following:

Warm – up  – first set at 50% and then work up by 6 – 9% per set until you reach the work sets.

Work sets #

Order           week 1                   week 2               week 3                 week 4                     week 5

Reps            5×5                        5×5                        5×5                        5×5                        5×5


*Load            67%                      70%                        73%                      76%                      79%


Rel. int.         79%                      82%                        85%                      88%                      91%

#volume is constant at 25 work reps for each workout

*load is the weight you actually load onto the bar.


The chart below will show how staying at 5’s but moving up the relative intensity chart was the stimulus for the training effect.

Rel.

Int. reps      1              2              3              4              5                6              7                8             9             10


100 1        100            97            94            91            88            85            82            79            76            73

97 2            97            94            91            88            85             82            79            76            73            70

94 3            94            91            88            85            82             79            76            73            70            67

91 4             91           88            85            82            79             76            73            70            67            64

88 5            88            85            82            79            76             73            70            67            64            61

85 6            85            82            79            76            73              70           67            64            61            58

82 7            82            79            76            73             70             67           64            61            58            55

79 8            79            76             73           70             67             64            61            58            55           52

76 9            76            73             70           67             64             61            58            55             52          49

73 10          73            70            67             64             61            58            55            52            49            46


Start at about 80 percent and work your way toward 90 – 95 percent of relative intensity over the course of the training cycle.  This is fairly easy to understand when the reps stay the same but what if the rep scheme is constantly changing?  Here is an example of the 10 – 8 – 6 – 4 – 2 scheme using the same relative intensity  for all the reps in each workout.  The relative intensity will go up from workout to workout in order to implement the overload effect.

Warm – up sets  – first set at 50% and then work up by 6 – 9% per set until you reach the work sets.

Work sets

Order       Week 1                                         week 2                                  week 3                              week 4

Reps        10 – 8 – 6 – 4 – 2                10 – 8 – 6 – 4 – 2                10 – 8 – 6 – 4 – 2                10 – 8 – 6 – 4 – 2


Load%      52-58–64–70-76                55-61-67-73-79                  58-64-70-76-82                  61-67-73-79-85


Rel. int%.           79                                        82%                                       85%                                   88%

#volume is constant at 30 reps for each work set.           

Rel.

Int. reps      1            2            3            4              5             6              7               8                9                 10


100 1        100            97            94            91            88            85            82            79            76            73

97 2            97            94            91            88            85            82            79            76            73            70

94 3            94            91            88            85            82            79            76            73            70            67

91 4            91            88            85            82            79            76            73            70            67            64

88 5            88             85           82            79            76             73           70           67             64             61

85 6            85             82           79             76           73             70           67           64            61              58

82 7            82             79           76            73            70             67            64            61            58             55

79 8            79            76             73            70            67            64            61            58            55            52

76 9            76             73            70            67            64            61            58            55            52            49

73 10            73            70            67            64            61            58            55            52            49            46


Next is an example of wave training (Training & Conditioning April 2000) in order to train the athlete at the same relative loads as the reps change within the workout and over the course of the training cycle.

Warm – up sets  – first set at 50% and then work up by 6 – 9% per set until you reach the work sets.

Work sets

Order                       Week 1                               Week 2                                Week 3                       Week 4

Reps            10 – 5 – 10 – 5 – 10 – 5         8 – 4 – 8 – 4 – 8 – 4         6 – 3 – 6 –3 – 6 – 3     5 – 2 – 5 – 2 – 5 – 2

Volume            45 total reps                        36 total reps                        27 total reps                        21 total reps

Load%            52-67-52-67-52-67            61-73-61-73-61-73            70-79-70-79-70-79          76-85-76-85-76-85

Rel.Int.%                  79%                                      82%                                       85%                                88%

Rel.

Int. reps      1             2             3              4               5              6              7              8              9              10


100 1       100            97            94            91            88            85            82            79            76            73

97 2            97            94            91            88            85            82            79            76            73            70

94 3            94            91            88            85            82            79            76            73            70            67

91 4            91            88            85            82            79            76            73            70            67            64

88 5            88            85            82            79            76             73            70            67           64            61

85 6            85            82            79            76            73            70            67             64            61            58

82 7            82            79            76            73             70            67            64            61             58            55

79 8            79              76            73            70             67          64            61            58             55            52

76 9            76              73            70            67            64            61            58            55            52            49

73 10            73            70            67            64            61            58            55            52            49            46

This is relative intensity.  If you are implementing strength training using rep schemes above 4 – 5 reps or in wave like training schemes in your sets, then relative intensity can provide you with the key to open the door to relate set to set and workout to workout.  Training variables can be manipulated and programs can be implemented that are streamlined in order to get the best training effect in the shortest amount of time with a corresponding reduction in the possibility of injury due to too much, too quick, or too often.

I would like to thank Bill Allerheilegan, Russ Ball, Mike Clark, Vern Gambetta, Bill Gillespie, Rick Huegli, Al Miller, Johnny Parker and Fred Roll for the ideas expressed here today.









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