Machine Back Extension

Machine Back Extension shows average weight and strength standards as a reference for back. Primary muscles: Erector spinae, Gluteus maximus.

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Average weight: Intermediate

Reference for an intermediate lifter.

Men 120 kg

Women 41 kg

Machine Back Extension: Average weight [1RM]

Level
Beginner	30 kg	13 kg
Novice	67 kg	24 kg
Intermediate	120 kg	41 kg
Advanced	188 kg	61 kg
Elite	268 kg	85 kg

Note: These standards are 1RM estimates based on average lifters. Bodyweight, age, and other personal factors can affect the values. See the detailed tables below.

Machine Back Extension: Strength standards (kg)

By bodyweight
By age

Men by bodyweight (kg) [1RM]

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
50	9	30	64	110	167
55	14	37	74	124	184
60	18	44	84	137	199
65	23	52	94	150	215
70	28	59	104	162	229
75	33	66	114	174	243
80	38	73	123	185	257
85	43	80	132	196	270
90	48	87	141	207	282
95	53	94	149	217	294
100	58	101	158	228	306
105	63	107	166	237	317
110	68	114	174	247	328
115	73	120	182	256	339
120	78	126	189	265	350
125	83	132	197	274	360
130	88	139	204	283	370
135	92	144	211	291	379
140	97	150	219	299	389

Men by age [1RM]

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	26	57	102	160	228
20	29	65	117	183	261
25	30	67	120	188	268
30	30	67	120	188	268
35	30	67	120	188	268
40	30	67	120	188	268
45	29	63	114	179	254
50	27	59	107	168	239
55	25	55	99	155	221
60	23	50	90	142	202
65	21	45	81	128	182
70	18	41	73	115	163
75	16	36	65	103	146
80	15	32	58	92	131
85	13	29	52	82	117
90	12	26	47	74	106

Women by bodyweight (kg) [1RM]

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
40	8	17	31	48	69
45	9	19	33	51	73
50	10	20	35	54	76
55	11	22	37	57	79
60	12	24	39	59	82
65	13	25	41	61	84
70	14	26	43	63	87
75	15	28	44	65	89
80	16	29	46	67	91
85	17	30	47	69	93
90	18	31	49	71	95
95	19	32	50	72	97
100	19	33	51	74	99
105	20	34	53	75	101
110	21	35	54	77	102
115	22	36	55	78	104
120	22	37	56	79	105

Women by age [1RM]

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	11	21	35	52	72
20	12	24	40	60	83
25	13	24	41	61	85
30	13	24	41	61	85
35	13	24	41	61	85
40	13	24	41	61	85
45	12	23	39	58	80
50	11	22	36	54	75
55	10	20	33	50	70
60	9	18	31	46	64
65	9	17	28	42	58
70	8	15	25	37	52
75	7	13	22	33	46
80	6	12	20	30	41
85	6	11	18	27	37
90	5	10	16	24	33

Note: The displayed load on machines and cables can vary by manufacturer and setup. Use these values as a comparison reference under similar equipment conditions.

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
50	9	30	64	110	167
55	14	37	74	124	184
60	18	44	84	137	199
65	23	52	94	150	215
70	28	59	104	162	229
75	33	66	114	174	243
80	38	73	123	185	257
85	43	80	132	196	270
90	48	87	141	207	282
95	53	94	149	217	294
100	58	101	158	228	306
105	63	107	166	237	317
110	68	114	174	247	328
115	73	120	182	256	339
120	78	126	189	265	350
125	83	132	197	274	360
130	88	139	204	283	370
135	92	144	211	291	379
140	97	150	219	299	389

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	26	57	102	160	228
20	29	65	117	183	261
25	30	67	120	188	268
30	30	67	120	188	268
35	30	67	120	188	268
40	30	67	120	188	268
45	29	63	114	179	254
50	27	59	107	168	239
55	25	55	99	155	221
60	23	50	90	142	202
65	21	45	81	128	182
70	18	41	73	115	163
75	16	36	65	103	146
80	15	32	58	92	131
85	13	29	52	82	117
90	12	26	47	74	106

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
40	8	17	31	48	69
45	9	19	33	51	73
50	10	20	35	54	76
55	11	22	37	57	79
60	12	24	39	59	82
65	13	25	41	61	84
70	14	26	43	63	87
75	15	28	44	65	89
80	16	29	46	67	91
85	17	30	47	69	93
90	18	31	49	71	95
95	19	32	50	72	97
100	19	33	51	74	99
105	20	34	53	75	101
110	21	35	54	77	102
115	22	36	55	78	104
120	22	37	56	79	105

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	11	21	35	52	72
20	12	24	40	60	83
25	13	24	41	61	85
30	13	24	41	61	85
35	13	24	41	61	85
40	13	24	41	61	85
45	12	23	39	58	80
50	11	22	36	54	75
55	10	20	33	50	70
60	9	18	31	46	64
65	9	17	28	42	58
70	8	15	25	37	52
75	7	13	22	33	46
80	6	12	20	30	41
85	6	11	18	27	37
90	5	10	16	24	33

Group	Muscles
Primary muscles	Erector spinae, Gluteus maximus
Secondary muscles	Hamstrings
Stabilizers	External obliques
Grip	None

Level	Description	Distribution
Beginner	Has learned proper form and trained consistently for at least 1 month.	Bottom 5%
Novice	Has trained consistently for at least 6 months.	Top 80%
Intermediate	Has trained consistently for at least 2 years.	Top 50%
Advanced	Has trained consistently for more than 5 years.	Top 20%
Elite	Has specialized in this exercise for more than 5 years.	Top 5%

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
50	9	30	64	110	167
55	14	37	74	124	184
60	18	44	84	137	199
65	23	52	94	150	215
70	28	59	104	162	229
75	33	66	114	174	243
80	38	73	123	185	257
85	43	80	132	196	270
90	48	87	141	207	282
95	53	94	149	217	294
100	58	101	158	228	306
105	63	107	166	237	317
110	68	114	174	247	328
115	73	120	182	256	339
120	78	126	189	265	350
125	83	132	197	274	360
130	88	139	204	283	370
135	92	144	211	291	379
140	97	150	219	299	389

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	26	57	102	160	228
20	29	65	117	183	261
25	30	67	120	188	268
30	30	67	120	188	268
35	30	67	120	188	268
40	30	67	120	188	268
45	29	63	114	179	254
50	27	59	107	168	239
55	25	55	99	155	221
60	23	50	90	142	202
65	21	45	81	128	182
70	18	41	73	115	163
75	16	36	65	103	146
80	15	32	58	92	131
85	13	29	52	82	117
90	12	26	47	74	106

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
40	8	17	31	48	69
45	9	19	33	51	73
50	10	20	35	54	76
55	11	22	37	57	79
60	12	24	39	59	82
65	13	25	41	61	84
70	14	26	43	63	87
75	15	28	44	65	89
80	16	29	46	67	91
85	17	30	47	69	93
90	18	31	49	71	95
95	19	32	50	72	97
100	19	33	51	74	99
105	20	34	53	75	101
110	21	35	54	77	102
115	22	36	55	78	104
120	22	37	56	79	105

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	11	21	35	52	72
20	12	24	40	60	83
25	13	24	41	61	85
30	13	24	41	61	85
35	13	24	41	61	85
40	13	24	41	61	85
45	12	23	39	58	80
50	11	22	36	54	75
55	10	20	33	50	70
60	9	18	31	46	64
65	9	17	28	42	58
70	8	15	25	37	52
75	7	13	22	33	46
80	6	12	20	30	41
85	6	11	18	27	37
90	5	10	16	24	33

Machine Back Extension

Average weight: Intermediate

Machine Back Extension: Average weight [1RM]

Machine Back Extension: Strength standards (kg)

Men by bodyweight (kg) [1RM]

Men by age [1RM]

Women by bodyweight (kg) [1RM]

Women by age [1RM]

Muscles worked

Track and analyze in the Shiba app

How to read the table

More exercises

Full body

Chest

Back

Shoulders

Arms

Legs

Core

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
50	9	30	64	110	167
55	14	37	74	124	184
60	18	44	84	137	199
65	23	52	94	150	215
70	28	59	104	162	229
75	33	66	114	174	243
80	38	73	123	185	257
85	43	80	132	196	270
90	48	87	141	207	282
95	53	94	149	217	294
100	58	101	158	228	306
105	63	107	166	237	317
110	68	114	174	247	328
115	73	120	182	256	339
120	78	126	189	265	350
125	83	132	197	274	360
130	88	139	204	283	370
135	92	144	211	291	379
140	97	150	219	299	389

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	26	57	102	160	228
20	29	65	117	183	261
25	30	67	120	188	268
30	30	67	120	188	268
35	30	67	120	188	268
40	30	67	120	188	268
45	29	63	114	179	254
50	27	59	107	168	239
55	25	55	99	155	221
60	23	50	90	142	202
65	21	45	81	128	182
70	18	41	73	115	163
75	16	36	65	103	146
80	15	32	58	92	131
85	13	29	52	82	117
90	12	26	47	74	106

Bodyweight	Beginner	Novice	Intermediate	Advanced	Elite
40	8	17	31	48	69
45	9	19	33	51	73
50	10	20	35	54	76
55	11	22	37	57	79
60	12	24	39	59	82
65	13	25	41	61	84
70	14	26	43	63	87
75	15	28	44	65	89
80	16	29	46	67	91
85	17	30	47	69	93
90	18	31	49	71	95
95	19	32	50	72	97
100	19	33	51	74	99
105	20	34	53	75	101
110	21	35	54	77	102
115	22	36	55	78	104
120	22	37	56	79	105

Age	Beginner	Novice	Intermediate	Advanced	Elite
15	11	21	35	52	72
20	12	24	40	60	83
25	13	24	41	61	85
30	13	24	41	61	85
35	13	24	41	61	85
40	13	24	41	61	85
45	12	23	39	58	80
50	11	22	36	54	75
55	10	20	33	50	70
60	9	18	31	46	64
65	9	17	28	42	58
70	8	15	25	37	52
75	7	13	22	33	46
80	6	12	20	30	41
85	6	11	18	27	37
90	5	10	16	24	33