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Acute Impact of Muscle Strengtheningon Cardio-Vascular System and Metabolism
An Empiric Survey on Maximal, Submaximal and Middle Performance
by the Example of the Leg-Press
Referent: Björn Schranz
Which Values of Lactic Acidity, Heart Rate and Blood Pressure May Occur During Muscle Strengthening?
1Does a Lower Performance (↓ Hypertrophy) Lead to a Lower Impact on Cardio-Vascular System and Metabolism?
2
1. Methodology
2. Theory: - Principles of Muscle Strengthening- Lactic Acidity
3. Results of the Survey
4. Conclusions and Recommandations
Methodology
Testing Persons:
• Number: 12
• Gender: Male
• Health Status: Healthy; Fitness-High Competition Level
• Age: 25 ±1,6 Years
Exercise:
Bilateral Leg-Press
1.Testing Maximal Performance = 14 Repetitions(25 s)
2.Testing Submaximal Performance = 11 Repetitions(20 s)
3.Testing Middle Performance = 7 Repetitions(13 s)
Same Principle for All the Performances:
Series : 5Length of breaks: 3 MinutesWeight : Same for All Performances
Paramaters for Measurement:
• Lactic Acidity (in mmol/l)
• Blood Pressure Systolic / Diastolic (in mmHg)
• Heart Rate (Beats per Minute)
• Subjective Performance Feeling (in %)
Theory
Muscle Strengthening:
Objective: Hypertrophy
Means: Empty the Intracellular Stock of Phospatesby Insufficient Breaks (90-95% Regeneration)
Type of Energy: dominant anaerobe-alaktazide
Practical Principles of Muscle Strengthening:
• Maximal Performance• In Every Serie
• Insufficient Breaks: 2-5 min
• 6-30 Seconds resp. 6-15 Repetitions
Latctic Acidity Under Different Conditions:
In Rest: 1-2 mmol/l400 m-Course: - Untrained: 15-20 mmol/l
- Peak Values: 25-27 mmol/l
4-6 mmol/l: low Acidity6-13 mmol/l: middle Acidity>13 mmol/l: high Acidity
Results
Which Values of Lactic Acidity, Heart Rate and Blood Pressure May Occur During Muscle Strengthening?
1Does a Lower Performance (↓ Hypertrophy) Lead to a Lower Impact on Cardio-Vascular System and Metabolism?
2
R A1 A2 A3 A4 A5
2468
101214
0
5,5
13,2
8,1
1010,9
3,45,05,9
[mm
ol/l
]
Maximal
Submaximal
Middle
Lact
ic A
cidi
tyN=12
Maximal
Submaximal
Middle
S1 S3 S4 S5S2
250
150
200 203
245
222
BP
Syst
olic
[ mm
Hg
]N=5 N=12 N=12
Maximal
Submaximal
Middle
S3 S4 S5
170
150
130
120B
PD
iast
oli c
[ m
mH
g]
N=5 N=12 N=12
Maximal
Submaximal
Middle
90
110
130
150
170
S1 S3 S4 S5S2
161
142160
[ Bea
ts/ m
i n]
HR
N=5 N=12 N=12
S1 S3 S4 S5S210‘000
20‘000
30‘000
40‘000Maximal
Submaximal
Mittel
32‘300
25‘500
35‘300
RPP
N=5 N=12 N=12
N5N1 N2 N3 N4
60
70
80
90
100
50
Submaximal
Middle
Subj
ectiv
ePe
rfor
man
ce F
eelin
g
77
8591
59
71
[ Per
cent
s]
N=12
Conclusions
Consequences of High Lactic Acidity:
<10 mmol/l: - 1-2 Days Regeneration- No Impact on Health
10-14 mmol/l: - 1-3 Weeks Regeneration - ↑ Risk for Infections and Injuries
>14 mmol/l: - 1-3 Months Regeneration - High Risk for Illness
R N1 N2 N3 N4 N5
2468
101214
0
5,5
13,2
8,1
1010,99,3
[mm
ol/l
]
Maximal
Submaximal
Middle
Lact
ic A
cidi
tyN=12
S3 S4 S5220
250
290
BP
Syst
olic
SD
(+)
[ mm
Hg
]
Maximal
Submaximal
Middle
N=5 N=12 N=12
Maximal
Submaximal
Middle
S3 S4 S5
170
150
130
120B
PD
yast
olic
[ m
mH
g]
N=5 N=12 N=12
Maximal HR (= 210 - 220 minus Age) :
Maximal Submaximal
4 Series: 49-59 years
3 Series: 52-62 years
Middle
5 Series: 69-79 years
Risks of High Heart Rate and High Blood Pressure:
In Case of Cardio-Vascular Pathology
• Angina-Pectoris Attack
• Collapse • Myokard-Infarctus
• Cerebro-Vascular Accident
Recommandations
1. Healthy Patients (= without Cardio-Vascular Pathology)
Big Muscle-Groups:No Maximal Performance with 14 Repetitions
because of High Lactic Acidity!
2. Cardio-Vascular Patients (= with Cardio-VascularPathology)
1. Healthy Patients
Big Muscle-Groups :
• Submaximal Performance with a Maximum of 3 Series
Check Heart-Rate
• Middle Performance with 5 Series (for Older Patients)
2. Cardio-Vascular Patients
For Each Strengthening Exercise:
• Middle Performance up to 5 Series
Ergometry under Performance:ECG with Continuous BP- / HR Measurement
• may be Submaximal Performancewith a Maximum of 3 Series
